##### Table of Contents

##### Index to Financial Statements

---

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549



---



FORM 10-K



---



(Mark One)

|x | ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
|- | ------------------------------------------------------------------------------------



For the fiscal year ended December 31, 2004



OR



| ̈ | TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
|- | ----------------------------------------------------------------------------------------



For the transition period from              to



Commission file number 1-14516



---



PRENTISS PROPERTIES TRUST

(Exact name of registrant as specified in its charter)



---



|                                                               |  |                                     
|-------------------------------------------------------------- |  | ------------------------------------
|Maryland                                                       |  | 75-2661588                          
|(State or Other Jurisdiction of Incorporation or Organization) |  | (I.R.S. Employer Identification No.)
|                                                               | 
|3890 West Northwest Highway, Suite 400, Dallas, Texas          |  | 75220                               
|(Address of Registrants Principal Executive Offices)          |  | (Zip Code)                          



(214) 654-0886

(Registrants telephone number, including area code)



---



Securities registered pursuant to Section 12(b) of the Act:



|                                                               |  |                                          
|-------------------------------------------------------------- |  | -----------------------------------------
|Title of each class                                            |  | Name of each exchange on which registered
|Common Shares of Beneficial Interest, par value $.01 per share |  | New York Stock Exchange, Inc.            
|                                                               | 
|Preferred Share Purchase Rights                                |  | New York Stock Exchange, Inc.            



Securities
registered pursuant to Section 12(g) of the Act:



None

(Title of class)



---



Indicate by check mark whether the registrant (1)
has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to
such filing requirements for the past 90 days.    Yes  x    No ̈



Indicate by check mark if
disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be contained, to the best of registrants knowledge, in definitive proxy or information statements incorporated by reference in Part
III of this Form 10-K or any amendment to this Form 10-K.  x



Indicate by check mark whether the registrant is an accelerated filer (as defined in Exchange Act Rule 12b-2).    Yes  x    No ̈



As of June 30, 2004, the last business day of the registrants most recently completed second fiscal quarter, the
aggregate market value of the voting stock held by non-affiliates of the registrant was approximately $1,387,303,301.



As of March 14, 2005, the number of Common Shares of Beneficial Interest outstanding was 45,188,482 and the number of outstanding Participating Cumulative
Redeemable Preferred Shares of Beneficial Interest, Series D, was 3,773,585.



DOCUMENTS INCORPORATED BY REFERENCE



Part III incorporates by reference the Companys Definitive Proxy Statement to be filed with respect to the Annual Meeting of Shareholders to be held on May 11, 2005.



---



---

##### Table of Contents

##### Index to Financial Statements

PRENTISS PROPERTIES TRUST



INDEX



|                           |  |                                                                                                |  |   
|-------------------------- |  | ---------------------------------------------------------------------------------------------- |  | --
|Item No.                   |  | Form 10-KReportPage                                                                           
|Forward-Looking Statements |  | 3                                                                                             
|                           | 
|PART I                     |  |                                                                                               
|                           |  |                                                                                               
|1.                         |  | Business                                                                                       |  | 4 
|2.                         |  | Properties                                                                                     |  | 9 
|3.                         |  | Legal Proceedings                                                                              |  | 17
|4.                         |  | Submission of Matters to a Vote of Security Holders                                            |  | 17
|                           | 
|PART II                    |  |                                                                                               
|                           |  |                                                                                               
|5.                         |  | Market for Companys Common Equity and Related Shareholder Matters                             |  | 18
|6.                         |  | Selected Financial Data                                                                        |  | 20
|7.                         |  | Managements Discussion and Analysis of Financial Condition and Results of Operations          |  | 23
|7A.                        |  | Quantitative and Qualitative Disclosures About Market Risk                                     |  | 63
|8.                         |  | Financial Statements and Supplementary Data                                                    |  | 64
|9.                         |  | Changes in and Disagreements with Accountants on Accounting and Financial Disclosure           |  | 64
|9A.                        |  | Controls and Procedures                                                                        |  | 64
|                           | 
|PART III                   |  |                                                                                               
|                           |  |                                                                                               
|10.                        |  | Trustees and Executive Officers of the Company                                                 |  | 65
|11.                        |  | Executive Compensation                                                                         |  | 65
|12.                        |  | Security Ownership of Certain Beneficial Owners and Management and Related Shareholder Matters |  | 65
|13.                        |  | Certain Relationships and Related Transactions                                                 |  | 65
|14.                        |  | Principal Accountant Fees and Services                                                         |  | 65
|                           | 
|PART IV                    |  |                                                                                               
|                           |  |                                                                                               
|15.                        |  | Exhibits, Financial Statement Schedules, and Reports on Form 8-K                               |  | 65
|                           | 
|Signatures                 |  | 72                                                                                            



2



---

##### Table of Contents

##### Index to Financial Statements

FORWARD-LOOKING STATEMENTS



This
Form 10-K and the documents incorporated by reference into this Form 10-K may contain forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. When used in
this Form 10-K, words such as anticipate, believe, estimate, expect, intend, predict, project, and similar expressions, as they relate to us or our management,
identify forward-looking statements. Such forward-looking statements are based on the beliefs of our management as well as assumptions made by us and information currently available to us. These forward-looking statements are subject to certain
risks, uncertainties and assumptions, including risks, uncertainties and assumptions related to the following:



|  |  |                                                                                                                                                                                                                   |  |   |  |                                                                                                                                                               
|- |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |  | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------
| |  | Our failure to qualify as a REIT under the Internal Revenue Code of 1986, as amended;                                                                                                                             |  |  |  | Competition in markets where we have properties;                                                                                                              
|  |  |                                                                                                                                                                                                                   | 
| |  | Possible adverse changes in tax and environmental laws, as well as the impact of newly adopted accounting principles on our accounting policies and on period-to-period comparison of financial
results;          |  |  |  | Our dependence on key personnel whose continued service is not guaranteed;                                                                                    
|  |  |                                                                                                                                                                                                                   | 
| |  | Potential liability for uninsured losses and environmental contamination;                                                                                                                                         |  |  |  | Changes in our investment, financing and borrowing policies without shareholder approval;                                                                     
|  |  |                                                                                                                                                                                                                   | 
| |  | Our properties are illiquid assets;                                                                                                                                                                               |  |  |  | The effect of shares available for future sale on the price of common shares;                                                                                 
|  |  |                                                                                                                                                                                                                   | 
| |  | Factors that could result in the poor operating performance of our properties including tenant defaults and increased costs such as taxes, insurance, utilities and casualty losses that exceed
insurance limits; |  |  |  | Limited ability of shareholders to effect change of control;                                                                                                  
|  |  |                                                                                                                                                                                                                   | 
| |  | Changes in market conditions including market interest rates and employment rates;                                                                                                                                |  |  |  | Conflicts of interest with management, our board of trustees and joint venture partners could impact business decisions;                                      
|  |  |                                                                                                                                                                                                                   | 
| |  | Our incurrence of debt and use of variable rate and derivative financial instruments;                                                                                                                             |  |  |  | Our third-party property management, leasing, development and construction business and related services;                                                     
|  |  |                                                                                                                                                                                                                   | 
| |  | Our real estate acquisition, redevelopment, development and construction activities;                                                                                                                              |  |  |  | Risks associated with an increase in the frequency and scope of changes in state and local tax laws and increases in the number of state and local tax audits;
|  |  |                                                                                                                                                                                                                   | 
| |  | The geographic concentration of our properties;                                                                                                                                                                   |  |  |  | Cost of compliance with the Americans with Disabilities Act and other similar laws related to our properties; and                                             
|  |  |                                                                                                                                                                                                                   | 
| |  | Changes in market conditions including capitalization rates applied in real estate acquisitions;                                                                                                                  |  |  |  | Other risk factors identified herein;                                                                                                                         



If one or more of
these risks or uncertainties materialize, or if any underlying assumption proves incorrect, actual results may vary materially from those anticipated, expected or projected. Such forward-looking statements reflect our current views with respect to
future events and are subject to these and other risks, uncertainties and assumptions relating to our operations, results of operations, growth strategy and liquidity. All subsequent written and oral forward-looking statements attributable to us or
individuals acting on our behalf are expressly qualified in their entirety by this paragraph. You should refer to the section entitled Risk Factors beginning on page 51 of this Form 10-K for a discussion of risk factors that could cause
actual results to differ materially from those indicated by the forward-looking statements. You are cautioned not to place undue reliance on our forward-looking statements, which speak only as of the date of this Form 10-K or the date of any
document incorporated by reference into this Form 10-K. We do not undertake any obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise.



3



---

##### Table of Contents

##### Index to Financial Statements

PART I



Item 1. Business



Overview



We are a self-administered and self-managed Maryland REIT. We acquire, own,
manage, lease, develop and build primarily office properties throughout the United States. We are self-administered in that we provide our own administrative services, such as accounting, tax and legal, internally through our own employees. We are
self-managed in that we internally provide all the management and maintenance services that our properties require through employees, such as, property managers, leasing professionals and engineers. We operate principally through our operating
partnership, Prentiss Properties Acquisition Partners, L.P. and its subsidiaries, and two management service companies, Prentiss Properties Resources, Inc. and its subsidiaries and Prentiss Properties Management, L.P. The ownership of the operating
partnership was as follows at December 31, 2004:



|                          |  |              |  |        |   |  |                                      |  |        |  
|------------------------- |  | ------------ |  | ------ | - |  | ------------------------------------ |  | ------ | -
|2004 (units in thousands) |  | Common Units |  | %      |   |  | Series D Convertible Preferred Units |  | %      |  
|Prentiss Properties Trust |  | 45,063       |  | 97.12  | % |  | 3,774                                |  | 100.00 | %
|Third Parties             |  | 1,335        |  | 2.88   | % |  |                                     |  | 0.00   | %
|                          |  |              |  |        |   |  |                                      |  |        |  
|Total                     |  | 46,398       |  | 100.00 | % |  | 3,774                                |  | 100.00 | %
|                          |  |              |  |        |   |  |                                      |  |        |  



As of December 31,
2004, we owned interests in a diversified portfolio of 133 primarily suburban Class A office and suburban industrial properties as follows:



|                      |  |                     |  |                            
|--------------------- |  | ------------------- |  | ---------------------------
|                      |  | Number of Buildings |  | Net Rentable Square Feet(1)
|                      |  |                     |  | (in millions)              
|Office properties     |  | 106                 |  | 17.5                       
|Industrial properties |  | 27                  |  | 2.2                        
|                      |  |                     |  |                            
|Total                 |  | 133                 |  | 19.7                       
|                      |  |                     |  |                            

---

|(1) | Includes 100% of the net rentable square feet of our wholly-owned, consolidated joint venture
and unconsolidated joint venture properties, which totaled 17.2 million, 989,000 and 1.6 million, respectively. Our pro rata share of net rentable square feet totals 18.4 million and includes 504,000 and 669,000 from our consolidated and
unconsolidated joint venture properties, respectively.
|--- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



As of December 31, 2004, our properties were 88% leased to approximately 950 tenants. In addition to managing properties that we own, we manage approximately 9.8 million net rentable square feet in office, industrial and other properties
for third parties.



Our primary business is the ownership and
operation of office and industrial properties throughout the United States. Our organization which includes approximately 475 employees consists of a corporate office located in Dallas, Texas and five regional offices each of which operates under
the guidance of a member of our senior management team. The following are the 10 markets in which our properties are located with the first market being the location of each regional office:



|                    |  |                                  
|------------------- |  | ---------------------------------
|Region              |  | Market                           
|Mid-Atlantic        |  | Metropolitan Washington, DC      
|Midwest             |  | Chicago, Suburban Detroit        
|Southwest           |  | Dallas/Fort Worth, Austin, Denver
|Northern California |  | Oakland, Silicon Valley          
|Southern California |  | San Diego, Los Angeles           



4



---

##### Table of Contents

##### Index to Financial Statements

We have determined that our reportable segments are those that are based on our method of internal
reporting, which disaggregates our business based upon our five geographic regions. For revenues, income from continuing operations and total asset information on each of our segments, see Note (19) to our Consolidated Financial Statements.



Recent Developments



On January 13, 2005, Prentiss Office Investors, L.P. completed a five-year
interest rate swap agreement in a notional amount of $20.0 million. The interest rate swap effectively locks 30-day LIBOR at 4.00% on $20.0 million of our variable rate borrowings. The interest rate swap is effective February 1, 2005 and matures
February 1, 2010.



On February 14, 2005, Prentiss Office
Investors, L.P., which is owned 51% by our operating partnership and its affiliates and 49% by Stichting Pensioenfonds ABP, acquired from an unrelated third party, a two building office complex with approximately 197,000 net rentable square feet.
The properties are located in Herndon, Virginia and were acquired for gross proceeds of $51.5 million. Each partner contributed their pro rata share of the purchase price to Prentiss Office Investors, L.P. for the acquisition. Amounts contributed
from the operating partnership were funded with proceeds from our revolving credit facility.



On March 10, 2005, we entered into a Purchase Agreement pursuant to which a trust, which was formed by us on February 24, 2005 (the Trust), will issue $26,250,000 and $25,000,000 of trust preferred equity
securities (the Capital Securities) to each of Taberna Preferred Funding I, Ltd. and Merrill Lynch International, respectively in a private placement pursuant to an applicable exemption from registration. The transactions contemplated by
the Purchase Agreement will occur on or before March 15, 2005. The Capital Securities will mature on March 30, 2035 (all dates listed in this summary assume a closing date of March 15, 2005), but may be redeemed at our option beginning on March 30,
2010. The Capital Securities will require quarterly distributions by the Trust to the holders of the Capital Securities, at a variable rate which will reset quarterly at the LIBOR rate plus 1.25%. Distributions will be cumulative and will accrue
from the date of original issuance but may be deferred by us for up to 20 consecutive quarterly periods.



The proceeds of the Capital Securities received by the Trust, along with proceeds of $1,586,000 received by the Trust from the issuance of common
securities (the Common Securities) by the Trust to Prentiss Properties Limited, Inc., a company subsidiary, will be used to purchase $52,836,000 of junior subordinated notes (the Notes), to be issued by Prentiss Properties
Acquisition Partners, L.P. pursuant to an indenture (the Indenture) to be entered into, as of the closing date provided above, between Prentiss Properties Acquisition Partners, L.P. and JPMorgan Chase Bank, N.A., as trustee.



The Notes will mature on March 30, 2035, but we may redeem the Notes, in
whole or in part, beginning on March 30, 2010 in accordance with the provisions of the Indenture. The Notes bear a variable rate which will reset quarterly at the LIBOR rate plus 1.25%. Interest is cumulative and will accrue from the date of
original issuance but may be deferred by us for up to 20 consecutive quarterly periods.



Business and Growth Strategies



Our primary
objective is to maximize shareholder value through increases in distributable cash flow per share and appreciation in the value of our common shares. We intend to achieve this objective through a combination of external and internal growth, while
maintaining a conservative balance sheet and pursuing a strategy of financial flexibility.



External Growth



Acquisitions



Acquisitions are a key
component of our external growth strategy. We selectively pursue acquisitions in our core markets when long-term yields make acquisitions attractive.



5



---

##### Table of Contents

##### Index to Financial Statements

We invest opportunistically and pursue assets that are:



| |  |  | managed by us and owned by our existing management clients which become available for sale;
| | - |  | -------------------------------------------------------------------------------------------



| |  |  | performing at a level believed to be substantially below potential due to identifiable management weaknesses or temporary market conditions;
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | encumbered by indebtedness that is in default or is not performing;
| | - |  | -------------------------------------------------------------------



| |  |  | held or controlled by short-term owners (such as assets held by insurance companies and financial institutions under regulatory pressure to sell);
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | contain below market leases, which may be re-leased in the near term to improve cash flow;
| | - |  | ------------------------------------------------------------------------------------------



| |  |  | have good long-term growth prospect; or
| | - |  | ---------------------------------------



| |  |  | are consistent with our product and market strategies.
| | - |  | ------------------------------------------------------



We believe that we are particularly well-positioned to acquire properties because of our:



| |  |  | presence in and knowledge of our 10 markets across the United States;
| | - |  | ---------------------------------------------------------------------



| |  |  | a diversified base of approximately 950 tenants;
| | - |  | ------------------------------------------------



| |  |  | existing relationships with 23 different third-party management clients;
| | - |  | ------------------------------------------------------------------------



| |  |  | access to capital as a public company, including our revolving credit facility;
| | - |  | -------------------------------------------------------------------------------



| |  |  | reputation as a buyer with the ability to execute complicated transactions;
| | - |  | ---------------------------------------------------------------------------



| |  |  | fully-integrated operations which allow rapid response to opportunities;
| | - |  | ------------------------------------------------------------------------



| |  |  | UPREIT structure, whereby sellers may contribute properties in exchange for units in our operating partnership in a tax deferred transaction; and
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | relationships with real estate brokers, institutional owners, and third-party management clients, which often allow preferential access to opportunities.
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------



In evaluating potential acquisition opportunities, we rely on the
experience of our employees and on our internal research capabilities in considering a number of factors, including:



| |  |  | macro-economic issues that impact the market in which the property is located;
| | - |  | ------------------------------------------------------------------------------



| |  |  | location and competition in the propertys market;
| | - |  | --------------------------------------------------



| |  |  | occupancy of and demand for properties of a similar type in the same market;
| | - |  | ----------------------------------------------------------------------------



| |  |  | the construction quality and condition of the property;
| | - |  | -------------------------------------------------------



| |  |  | the potential for increased cash flow after benefiting from our renovations, refurbishment and upgrades;
| | - |  | --------------------------------------------------------------------------------------------------------



| |  |  | purchase price relative to replacement costs; and
| | - |  | -------------------------------------------------



| |  |  | the potential to generate revenue growth at or above levels of economic growth in the propertys market.
| | - |  | --------------------------------------------------------------------------------------------------------



Further, we believe that our development expertise enables us to identify the
potential for improvement in an acquisition opportunity, which might not be apparent to a buyer without similar expertise.



During the year ended December 31, 2004, we acquired, from unrelated third parties, 8 office buildings totaling approximately 2.3 million net rentable
square feet. The following table sets forth the segment, market, month of acquisition, number of buildings, net rentable square feet and acquisition price of the buildings acquired. See Item 2. Properties for additional information
relating to our properties.



|                           |  |                 |  |                  |  |                      |  |                     |  |                                            |  |                                    |      
|-------------------------- |  | --------------- |  | ---------------- |  | -------------------- |  | ------------------- |  | ------------------------------------------ |  | ---------------------------------- | -----
|Acquired Properties        |  | Segment         |  | Market           |  | Month of Acquisition |  | Number of Buildings |  | Net Rentable Square Feet(1) (in thousands) |  | Acquisition Price(2) (in millions)
|Cityplace Center           |  | Southwest       |  | Dallas/Ft. Worth |  | April 2004           |  | 1                   |  | 1,296                                      |  | $                                  | 123.3
|The Bluffs(3)              |  | Southern Calif. |  | San Diego        |  | May 2004             |  | 1                   |  | 69                                         |  |                                    | 17.7 
|5500 Great America Parkway |  | Northern Calif. |  | Silicon Valley   |  | May 2004             |  | 3                   |  | 306                                        |  |                                    | 34.8 
|2101 Webster               |  | Northern Calif. |  | Oakland          |  | Oct. 2004            |  | 1                   |  | 459                                        |  |                                    | 65.7 
|Lakeside Point I & II(3)   |  | Midwest         |  | Chicago          |  | Oct. 2004            |  | 2                   |  | 198                                        |  |                                    | 32.6 
|                           |  |                 |  |                  |  |                      |  |                     |  |                                            |  |                                    |      
|                           |  |                 |  |                  |  |                      |  | 8                   |  | 2,328                                      |  | $                                  | 274.1
|                           |  |                 |  |                  |  |                      |  |                     |  |                                            |  |                                    |      

---

|(1) | Net rentable square feet defines the area of a property for which a tenant is required to pay
rent, which includes the actual rentable area plus a portion of the common areas of the property allocated to a tenant.
|--- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



6



---

##### Table of Contents

##### Index to Financial Statements

|(2) | Acquisitions were funded with proceeds from our revolving credit facility, debt assumption,
property sales and proceeds generated from the sale of common shares.
|--- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------

|(3) | Acquisitions were acquired by Prentiss Office Investors, L.P. Prentiss Office Investors, L.P.
is owned 51% by our operating partnership and 49% by Stichting Pensioenfonds ABP, an unrelated third party. The net rentable square feet and acquisition price is presented at 100%. Each partner contributed their pro rata share of the purchase price
of each property to Prentiss Office Investors, L.P. prior to acquisition.
|--- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



On July 15, 2004, we acquired from an unrelated third party, approximately 7.7 acres of land in Del Mar, California for gross consideration of $15.1 million. The acquisition was funded with proceeds from our revolving
credit facility.



Development



Similar to acquisitions, development is another key component of our
external growth strategy. We intend to capitalize on our development capabilities by selectively developing and redeveloping properties in markets with favorable current and projected long-term growth characteristics and supply-demand imbalances. We
control all aspects of the development process, including site selection, project concept, design and construction, financing, leasing and property management. We intend to develop primarily office properties with levels of pre-leasing appropriate
for market conditions.



In evaluating potential development
opportunities, we rely on the experience of our employees and on our internal research capabilities in considering a number of factors, including:



| |  |  | macro-economic issues that impact the market in which the development is to be located;
| | - |  | ---------------------------------------------------------------------------------------



| |  |  | location and competition in the propertys market;
| | - |  | --------------------------------------------------



| |  |  | occupancy of and demand for properties of a similar type in the same market; and
| | - |  | --------------------------------------------------------------------------------



| |  |  | the potential to generate revenue growth at or above levels of economic growth in the propertys market.
| | - |  | --------------------------------------------------------------------------------------------------------



During the year ended December 31, 2004, we began construction of a two
building, 158,000 net rentable square foot Class A office project located in Del Mar, California. The project which is currently 50% pre-leased is expected to be completed in July 2005 for an estimated project cost of approximately $48.1 million.
The project is owned by Prentiss/Collins Del Mar Heights, LLC, a consolidated joint venture which is owned 70% by our operating partnership and 30% by Collins Corporate Center, LLC, an unrelated third party.



Internal Growth



We seek to maximize the profitability of our properties by renewing leases, maintaining high occupancy rates, increasing
rental revenues, and reducing operating costs.



We strive to
achieve increases in rental revenues by negotiating leases that include increases in rent during the lease term, by replacing expiring leases with new leases at higher rental rates and by improving occupancy rates. We also seek to renew existing
leases, which reduces the costs of lease rollovers, reduces rental revenue fluctuations and enhances long-term relationships with national tenants that may have space needs in our other markets.



We strive to achieve reductions in operating costs by performing many
functions, e.g., engineering, tax and legal, in-house instead of hiring third parties and by employing both internal and external benchmarking and best practices methodologies. Our benchmarking program compares operating costs and efficiencies of
each property with other office and industrial properties. Under the program, we conduct periodic evaluations of key performance indicators at each building and compare the results to a variety of benchmarks, e.g., specific buildings, portfolios,
regions and the industry. Our best practices methodology involves continuously analyzing benchmarking data,



7



---

##### Table of Contents

##### Index to Financial Statements

investigating properties that perform better than the norm and regularly disseminating and sharing information with respect to the best practices employed at
the better performing properties throughout our management system. By employing these methodologies, we believe that we can continue to capitalize on opportunities to reduce operating costs and operate the properties more efficiently and
effectively.



We use centralized cash management, national
alliances with service providers, a sophisticated budgeting system and state-of-the-art information systems to improve efficiency and increase profits.



Asset managers in each region develop a strategy and marketing position for each property. Each property is evaluated using sophisticated valuation
software to determine the overall effect of property-level decisions such as lease structures and capital expenditures on asset value. Asset managers also work with property managers and engineers to determine where improvements, such as lighting
retrofits and energy management system upgrades, will maximize returns.



Third-Party Management



At December 31, 2004,
we, through our subsidiaries, managed or performed property-related services for 158 office, industrial and other properties owned by 23 third-party management clients. These properties are located throughout the United States and contain
approximately 9.8 million net rentable square feet.



Our
management business serves a broad base of clients, including major financial institutions and pension funds, large corporate users, real estate advisory firms and real estate investment groups. In addition to property management and leasing, we
offer our clients a full range of fee-based services, including tenant construction, leasing, insurance, accounting, tax, acquisition, disposition, facilities management, and corporate and asset management services.



Competition



We operate in five regions: Mid-Atlantic, Midwest, Southwest, Northern California and Southern California and compete with
many local, regional and national competitors in the office and industrial sectors. These five regions comprise 10 markets nationwide. The markets in which we operate are not dominated by any one owner or by us. In each market we compete on a number
of factors including rental rates, tenant concessions, quality and location of buildings, quality of property management, and other economic and non-economic factors. Our competitors may have greater financial resources than are available to us
and/or they may be willing to rent space at lower rental rates or provide greater leasing concessions. Our major competitors in each region include the following companies:



|                    |  |                                                                                                                                                                
|------------------- |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------
|Segment             |  | Competitors                                                                                                                                                    
|Mid-Atlantic        |  | Boston Properties, CarrAmerica Realty Corp., Corporate Office Properties Trust, Equity Office Properties, Trizec Properties, Inc., Vornado Realty Trust        
|                    | 
|Midwest             |  | CarrAmerica Realty Corp., Duke Realty Corp., Equity Office Properties, Hines, John Buck Co., Marvin Herb, Tishman Speyer, Transwestern, Trizec Properties, Inc.
|                    | 
|Southwest           |  | CarrAmerica Realty Corp., Crescent Real Estate Equities, Equity Office Properties, Lincoln Property Co., Trammell Crow Co., Trizec Properties, Inc.            
|                    | 
|Northern California |  | Boston Properties, CarrAmerica Realty Corp., Equity Office Properties, RREEF, Shorenstein Co.                                                                  
|                    | 
|Southern California |  | Arden Realty, CarrAmerica Realty Corp., Equity Office Properties, Kilroy Realty Corp., Lowe Enterprises, RREEF                                                 



Corporate Governance



We have implemented the following corporate governance
initiatives to address certain legal requirements promulgated under the Sarbanes-Oxley Act of 2002, as well as the New York Stock Exchange corporate governance listing standards:



| |  |  | Our board of trustees determined that Ronald G. Steinhart, Dr. Leonard M. Riggs, Jr. and Barry J.C. Parker each qualify as an audit committee financial expert as such
term is defined under Item 401 of Regulation S-K. Our board of trustees has also made an affirmative determination that each of Messrs. Steinhart, Riggs and Parker is independent as that term is used in Item 7(d)(3)(iv) of Schedule 14A
under the Exchange Act;
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



8



---

##### Table of Contents

##### Index to Financial Statements

| |  |  | Our audit committee established Audit Committee Complaint Procedures for the receipt, retention and treatment of complaints regarding accounting, internal accounting
control or auditing matters, including the anonymous submission by employees of concerns regarding questionable accounting or auditing matters.
| | - |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Our board of trustees updated our Code of Conduct to comply with the Sarbanes-Oxley Act of 2002 and the listing standards of the New York Stock Exchange. Our Code of Conduct governs
business decisions made and actions taken by our trustees, officers and employees. A copy of this Code is available on our website at http://www.prentissproperties.com and we will disclose on this website any amendment to or wavier of any
provision of the Code applicable to our trustees and executive officers that would otherwise be required to be disclosed under the rules of the SEC or the New York Stock Exchange. A copy of the Code is also available in print to any shareholder upon
written request addressed to Investor Relations, Prentiss Properties Trust, 3890 West Northwest Highway, Suite 400, Dallas, Texas 75220.
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Our board of trustees established an Ethics Hotline that employees may use to anonymously report possible violations of the Code of Conduct, including concerns regarding
questionable accounting, internal accounting controls or auditing matters.
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Our board of trustees has established and adopted charters for each of its Audit, Compensation and Nominating and Corporate Governance Committees. Each committee is comprised of
three (3) independent trustees. A copy of each of these charters is available on our website at http://www.prentissproperties.com and is available in print to any shareholder upon written request addressed to Investor Relations, Prentiss
Properties Trust, 3890 West Northwest Highway, Suite 400, Dallas, Texas 75220.
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Our board of trustees has adopted Corporate Governance Guidelines, a copy of which is available on our website at http://www.prentissproperties.com and is available in print
to any shareholder upon written request addressed to Investor Relations, Prentiss Properties Trust, 3890 West Northwest Highway, Suite 400, Dallas, Texas 75220.
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



Available Information



We file annual, quarterly and special reports, proxy statements and other information with the SEC. You may read and copy any document we file at the
SECs Public Reference Room at 450 Fifth Street, N.W., Washington, D.C. 20549. Please call the SEC at 1-800-SEC-0330 for further information on the Public Reference Room. Our SEC filings are also available to the public at the SECs web
site at http://www.sec.gov. No information from this web page is incorporated by reference herein. Our web site is http://www.prentissproperties.com. You may also obtain copies of our annual, quarterly and current reports, proxy statements,
Code of Conduct, the Charters of our Audit, Compensation, and Nominating and Corporate Governance Committees of our board of trustees and certain other information filed with the SEC, as well as amendments thereto, free of charge from our web site.
These documents are posted to our web site as soon as reasonably practicable after we have filed or furnished these documents to the SEC.



Item 2. Properties



At December
31, 2004, we owned interests in 133 properties totaling 19.7 million net rentable square feet with no individual property representing either 10% or more of our total assets at December 31, 2004 or gross revenues for the year ended December 31,
2004. The properties consist of 106 office properties comprising approximately 17.5 million net rentable square feet and 27 industrial properties comprising approximately 2.2 million net rentable square feet. As of December 31, 2004, all of these
properties are wholly-owned by us (through our subsidiaries), except the following:



| | (1) | 2291 Wood Oak Drive, Corporate Lakes III, Camino West Corporate Park, Carlsbad Airport Plaza, La Place Court, Pacific Ridge Corporate Centre, Pacific View Plaza, The Bluffs and
Lakeside Point I & II, which are owned by Prentiss Office Investors, L.P., a joint venture, in which we own a 51% controlling interest and consolidate with and into the accounts of our operating partnership;
| | --- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



9



---

##### Table of Contents

##### Index to Financial Statements

| | (2) | the Broadmoor Austin properties, which are held pursuant to a 100% leasehold interest by Broadmoor Austin Associates, a joint venture, in which we own a 50% non-controlling interest
and account for using the equity method of accounting;
| | --- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | (3) | the 1676 International Drive and 8260 Greensboro properties, which are owned by Tysons International Partners, a joint venture, in which we own a 25% non-controlling interest and
account for using the equity method of accounting;
| | --- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | (4) | One Northwestern Plaza, a property in which we own a 100% leasehold interest and consolidate with and into the accounts of our operating partnership; and
| | --- | ---------------------------------------------------------------------------------------------------------------------------------------------------------



| | (5) | 6600 Rockledge Drive, a property in which we own a 98.9% leasehold interest and consolidate with and into the accounts of our operating partnership.
| | --- | ----------------------------------------------------------------------------------------------------------------------------------------------------



10



---

##### Table of Contents

##### Index to Financial Statements

The following table presents specific information about our consolidated properties as of December 31,
2004:



|                             |  |              |  |                   |  |                        |  |                   |  |                            |  |                                          |        |                            |    
|---------------------------- |  | ------------ |  | ----------------- |  | ---------------------- |  | ----------------- |  | -------------------------- |  | ---------------------------------------- | ------ | -------------------------- | ---
|Property Name                |  | BuildingType |  | Market            |  | Year(s)Built/Renovated |  | NumberofBuildings |  | Net RentableSquare Feet(2) |  | Total BaseRent for Year Ended12/31/04(3) |        | PercentLeasedAs of12/31/04
|                             |  |              |  |                   |  |                        |  |                   |  | (in thousands)             |  | (in thousands)                           |        |                           
|2291 Wood Oak Drive(1)       |  | Office       |  | Metro. Wash., DC  |  | 1999                   |  | 1                 |  | 228                        |  | $                                        | 4,728  |                            | 100
|2411 Dulles Corner Road      |  | Office       |  | Metro. Wash., DC  |  | 1990                   |  | 1                 |  | 177                        |  |                                          | 4,703  |                            | 96 
|3130 Fairview Park Drive     |  | Office       |  | Metro. Wash., DC  |  | 1999                   |  | 1                 |  | 183                        |  |                                          | 5,654  |                            | 100
|3141 Fairview Park Drive     |  | Office       |  | Metro. Wash., DC  |  | 1988                   |  | 1                 |  | 192                        |  |                                          | 3,430  |                            | 92 
|4401 Fair Lakes Court        |  | Office       |  | Metro. Wash., DC  |  | 1988                   |  | 1                 |  | 59                         |  |                                          | 1,343  |                            | 95 
|6600 Rockledge Drive         |  | Office       |  | Metro. Wash., DC  |  | 1981                   |  | 1                 |  | 156                        |  |                                          | 4,712  |                            | 100
|7101 Wisconsin Avenue        |  | Office       |  | Metro. Wash., DC  |  | 1975                   |  | 1                 |  | 237                        |  |                                          | 3,737  |                            | 60 
|8521 Leesburg Pike           |  | Office       |  | Metro. Wash., DC  |  | 1984                   |  | 1                 |  | 151                        |  |                                          | 1,246  |                            | 89 
|12601 Fair Lakes Circle      |  | Office       |  | Metro. Wash., DC  |  | 1995                   |  | 1                 |  | 264                        |  |                                          | 4,992  |                            | 100
|13825 Sunrise Valley Drive   |  | Office       |  | Metro. Wash., DC  |  | 1989                   |  | 1                 |  | 106                        |  |                                          | 2,759  |                            | 98 
|Calverton Office Park        |  | Office       |  | Metro. Wash., DC  |  | 1981-1987              |  | 3                 |  | 307                        |  |                                          | 5,281  |                            | 52 
|Campus Point                 |  | Office       |  | Metro. Wash., DC  |  | 1985                   |  | 1                 |  | 172                        |  |                                          | 2,985  |                            | 100
|Fairmont Building            |  | Office       |  | Metro, Wash., DC  |  | 1964/1997              |  | 1                 |  | 124                        |  |                                          | 2,695  |                            | 93 
|Greenwood Center             |  | Office       |  | Metro. Wash., DC  |  | 1985                   |  | 1                 |  | 150                        |  |                                          | 3,555  |                            | 100
|Oakwood Center               |  | Office       |  | Metro, Wash., DC  |  | 1982                   |  | 1                 |  | 128                        |  |                                          | 2,824  |                            | 98 
|Park West at Dulles Corner   |  | Office       |  | Metro, Wash., DC  |  | 1997                   |  | 1                 |  | 152                        |  |                                          | 4,184  |                            | 100
|Plaza 1900                   |  | Office       |  | Metro, Wash., DC  |  | 1989                   |  | 1                 |  | 203                        |  |                                          | 5,011  |                            | 100
|Research Office Center I-III |  | Office       |  | Metro. Wash., DC  |  | 1986-2000              |  | 3                 |  | 439                        |  |                                          | 10,098 |                            | 87 
|Willow Oaks I-III            |  | Office       |  | Metro. Wash., DC  |  | 1986-2002              |  | 3                 |  | 569                        |  |                                          | 8,387  |                            | 79 
|                             |  |              |  |                   |  |                        |  |                   |  |                            |  |                                          |        |                            |    
|Total Mid-Atlantic Region    |  |              |  |                   |  |                        |  | 25                |  | 3,997                      |  |                                          | 82,324 |                            |    
|                             |  |              |  |                   |  |                        |  |                   |  |                            |  |                                          |        |                            |    
|123 North Wacker Drive       |  | Office       |  | Chicago           |  | 1986                   |  | 1                 |  | 541                        |  |                                          | 9,232  |                            | 92 
|410 Warrenville Road         |  | Office       |  | Chicago           |  | 1999                   |  | 1                 |  | 60                         |  |                                          | 798    |                            | 100
|701 Warrenville Road         |  | Office       |  | Chicago           |  | 1988                   |  | 1                 |  | 67                         |  |                                          | 1,165  |                            | 93 
|1717 Deerfield Road          |  | Office       |  | Chicago           |  | 1985                   |  | 1                 |  | 141                        |  |                                          | 1,403  |                            | 100
|Bannockburn Centre           |  | Office       |  | Chicago           |  | 1999                   |  | 1                 |  | 257                        |  |                                          | 4,745  |                            | 100
|Corporate Lakes III(1)       |  | Office       |  | Chicago           |  | 1990                   |  | 1                 |  | 124                        |  |                                          | 1,985  |                            | 100
|Corporetum Office Campus     |  | Office       |  | Chicago           |  | 1984-1987              |  | 5                 |  | 322                        |  |                                          | 1,876  |                            | 84 
|Lakeside Point I & II(1)     |  | Office       |  | Chicago           |  | 1990/1998              |  | 2                 |  | 198                        |  |                                          | 520    |                            | 100
|OHare Plaza II              |  | Office       |  | Chicago           |  | 1986                   |  | 1                 |  | 236                        |  |                                          | 4,632  |                            | 71 
|One OHare Centre            |  | Office       |  | Chicago           |  | 1984                   |  | 1                 |  | 380                        |  |                                          | 3,654  |                            | 74 
|Salton                       |  | Office       |  | Chicago           |  | 2001                   |  | 1                 |  | 59                         |  |                                          | 1,132  |                            | 100
|Chicago Industrial           |  | Industrial   |  | Chicago           |  | 1987-1988              |  | 4                 |  | 682                        |  |                                          | 2,339  |                            | 82 
|One Northwestern Plaza       |  | Office       |  | Sub. Detroit      |  | 1989                   |  | 1                 |  | 242                        |  |                                          | 3,265  |                            | 89 
|                             |  |              |  |                   |  |                        |  |                   |  |                            |  |                                          |        |                            |    
|Total Midwest Region         |  |              |  |                   |  |                        |  | 21                |  | 3,309                      |  |                                          | 36,746 |                            |    
|                             |  |              |  |                   |  |                        |  |                   |  |                            |  |                                          |        |                            |    
|Barton Skyway I-IV           |  | Office       |  | Austin            |  | 1999-2002              |  | 4                 |  | 787                        |  |                                          | 14,111 |                            | 97 
|Cielo Center                 |  | Office       |  | Austin            |  | 1984                   |  | 3                 |  | 271                        |  |                                          | 4,192  |                            | 90 
|Spyglass Point               |  | Office       |  | Austin            |  | 1999                   |  | 1                 |  | 59                         |  |                                          | 949    |                            | 100
|Bachman East & West          |  | Office       |  | Dallas/Fort Worth |  | 1986                   |  | 2                 |  | 196                        |  |                                          | 3,189  |                            | 90 
|Burnett Plaza                |  | Office       |  | Dallas/Fort Worth |  | 1983                   |  | 1                 |  | 1,025                      |  |                                          | 16,066 |                            | 96 
|Cityplace Center             |  | Office       |  | Dallas/Fort Worth |  | 1988                   |  | 1                 |  | 1,296                      |  |                                          | 12,295 |                            | 87 
|Cottonwood Office Center     |  | Office       |  | Dallas/Fort Worth |  | 1986                   |  | 3                 |  | 165                        |  |                                          | 1,417  |                            | 90 
|IBM Call Center              |  | Office       |  | Dallas/Fort Worth |  | 1998                   |  | 1                 |  | 150                        |  |                                          | 2,232  |                            | 100
|Lakeview Center              |  | Office       |  | Dallas/Fort Worth |  | 2000                   |  | 1                 |  | 101                        |  |                                          | 1,451  |                            | 100
|Millennium Center            |  | Office       |  | Dallas/Fort Worth |  | 1999                   |  | 1                 |  | 99                         |  |                                          | 901    |                            | 0  
|Park West C2                 |  | Office       |  | Dallas/Fort Worth |  | 1989                   |  | 1                 |  | 349                        |  |                                          | 7,665  |                            | 85 
|Park West C3                 |  | Office       |  | Dallas/Fort Worth |  | 1985                   |  | 1                 |  | 339                        |  |                                          | 4,776  |                            | 79 
|Park West E1                 |  | Office       |  | Dallas/Fort Worth |  | 1982                   |  | 1                 |  | 183                        |  |                                          | 3,183  |                            | 100
|Park West E2                 |  | Office       |  | Dallas/Fort Worth |  | 1985                   |  | 1                 |  | 201                        |  |                                          | 1,767  |                            | 10 
|Walnut Glen Tower            |  | Office       |  | Dallas/Fort Worth |  | 1985                   |  | 1                 |  | 464                        |  |                                          | 8,186  |                            | 95 
|WestPoint Office Building    |  | Office       |  | Dallas/Fort Worth |  | 1998                   |  | 1                 |  | 150                        |  |                                          | 2,508  |                            | 91 
|Carrara Place                |  | Office       |  | Denver            |  | 1982                   |  | 1                 |  | 234                        |  |                                          | 2,978  |                            | 89 



11



---

##### Table of Contents

##### Index to Financial Statements

|                                  |  |              |  |                |  |                        |  |                   |  |                            |  |                                          |         |                            |    
|--------------------------------- |  | ------------ |  | -------------- |  | ---------------------- |  | ----------------- |  | -------------------------- |  | ---------------------------------------- | ------- | -------------------------- | ---
|Property Name                     |  | BuildingType |  | Market         |  | Year(s)Built/Renovated |  | NumberofBuildings |  | Net RentableSquare Feet(2) |  | Total BaseRent for Year Ended12/31/04(3) |         | PercentLeasedAs of12/31/04
|                                  |  |              |  |                |  |                        |  |                   |  | (in thousands)             |  | (in thousands)                           |         |                           
|Highland Court                    |  | Office       |  | Denver         |  | 1986                   |  | 1                 |  | 93                         |  |                                          | 1,328   |                            | 84 
|Orchard Place I & II              |  | Office       |  | Denver         |  | 1980                   |  | 2                 |  | 105                        |  |                                          | 2,052   |                            | 94 
|PacifiCare Building               |  | Office       |  | Denver         |  | 1983                   |  | 1                 |  | 198                        |  |                                          | 2,584   |                            | 79 
|Panorama Point                    |  | Office       |  | Denver         |  | 1983                   |  | 1                 |  | 79                         |  |                                          | 781     |                            | 82 
|                                  |  |              |  |                |  |                        |  |                   |  |                            |  |                                          |         |                            |    
|Total Southwest Region            |  |              |  |                |  |                        |  | 30                |  | 6,544                      |  |                                          | 94,611  |                            |    
|                                  |  |              |  |                |  |                        |  |                   |  |                            |  |                                          |         |                            |    
|2101 Webster                      |  | Office       |  | Oakland        |  | 1985                   |  | 1                 |  | 459                        |  |                                          | 2,228   |                            | 78 
|Lake Merritt Tower I              |  | Office       |  | Oakland        |  | 1990                   |  | 1                 |  | 204                        |  |                                          | 5,595   |                            | 95 
|The Ordway                        |  | Office       |  | Oakland        |  | 1970                   |  | 1                 |  | 531                        |  |                                          | 15,202  |                            | 99 
|World Savings Center              |  | Office       |  | Oakland        |  | 1985                   |  | 1                 |  | 272                        |  |                                          | 6,852   |                            | 99 
|5500 Great America Parkway        |  | Office       |  | Silicon Valley |  | 1999                   |  | 3                 |  | 306                        |  |                                          | 27      |                            | 72 
|                                  |  |              |  |                |  |                        |  |                   |  |                            |  |                                          |         |                            |    
|Total Northern California Region  |  |              |  |                |  |                        |  | 7                 |  | 1,772                      |  |                                          | 29,904  |                            |    
|                                  |  |              |  |                |  |                        |  |                   |  |                            |  |                                          |         |                            |    
|Los Angeles Industrial            |  | Industrial   |  | Los Angeles    |  | 1973-1983              |  | 18                |  | 1,253                      |  |                                          | 7,081   |                            | 88 
|Camino West Corporate Park(1)     |  | Office       |  | San Diego      |  | 1991                   |  | 1                 |  | 54                         |  |                                          | 1,007   |                            | 93 
|Carlsbad Airport Plaza(1)         |  | Office       |  | San Diego      |  | 1987                   |  | 1                 |  | 62                         |  |                                          | 1,277   |                            | 94 
|Carlsbad Pacifica                 |  | Office       |  | San Diego      |  | 1986                   |  | 1                 |  | 49                         |  |                                          | 1,176   |                            | 69 
|Carlsbad Pacific Center I-III     |  | Office       |  | San Diego      |  | 1986-2002              |  | 3                 |  | 130                        |  |                                          | 3,155   |                            | 93 
|Del Mar Gateway                   |  | Office       |  | San Diego      |  | 2001                   |  | 1                 |  | 164                        |  |                                          | 5,207   |                            | 100
|Executive Center Del Mar          |  | Office       |  | San Diego      |  | 1998                   |  | 2                 |  | 113                        |  |                                          | 3,176   |                            | 83 
|La Place Court(1)                 |  | Office       |  | San Diego      |  | 1988                   |  | 2                 |  | 81                         |  |                                          | 1,577   |                            | 90 
|Pacific Ridge Corporate Centre(1) |  | Office       |  | San Diego      |  | 1999                   |  | 2                 |  | 121                        |  |                                          | 2,772   |                            | 92 
|Pacific View Plaza(1)             |  | Office       |  | San Diego      |  | 1986                   |  | 1                 |  | 52                         |  |                                          | 1,230   |                            | 96 
|Plaza I & II                      |  | Office       |  | San Diego      |  | 1988-1989              |  | 2                 |  | 89                         |  |                                          | 2,027   |                            | 89 
|The Bluffs(1)                     |  | Office       |  | San Diego      |  | 2002                   |  | 1                 |  | 69                         |  |                                          | 957     |                            | 91 
|The Campus                        |  | Office       |  | San Diego      |  | 1988                   |  | 1                 |  | 45                         |  |                                          | 959     |                            | 93 
|San Diego Industrial              |  | Industrial   |  | San Diego      |  | 1985-1988              |  | 5                 |  | 268                        |  |                                          | 3,452   |                            | 100
|                                  |  |              |  |                |  |                        |  |                   |  |                            |  |                                          |         |                            |    
|Total Southern California Region  |  |              |  |                |  |                        |  | 41                |  | 2,550                      |  |                                          | 35,053  |                            |    
|                                  |  |              |  |                |  |                        |  |                   |  |                            |  |                                          |         |                            |    
|Total Consolidated Properties     |  |              |  |                |  |                        |  | 124               |  | 18,172                     |  | $                                        | 278,638 |                            |    
|                                  |  |              |  |                |  |                        |  |                   |  |                            |  |                                          |         |                            |    

---

|(1) | Property or properties owned by Prentiss Office Investors, L.P., of which we own a 51%
controlling interest. Net rentable square feet and total base rent is presented at 100%.
|--- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(2) | Net rentable square feet defines the area of a property for which a tenant is required to pay
rent, which includes the actual rentable area plus a portion of the common areas of the property allocated to a tenant.
|--- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(3) | Total base rent for the year ended December 31, 2004 includes the fixed rental amount due for
the year ended December 31, 2004 under contractual lease obligations, which excludes (1) lease termination payments; (2) parking rent; (3) future contractual or contingent rent escalations; and (4) additional rent payable by tenants for items such
as common area maintenance, real estate taxes and other expense reimbursements.
|--- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



12



---

##### Table of Contents

##### Index to Financial Statements

The following table presents specific information about our unconsolidated properties as of December 31,
2004:



|                                |  |              |  |                  |  |                        |  |                   |  |                            |  |                                          |         |                            |    
|------------------------------- |  | ------------ |  | ---------------- |  | ---------------------- |  | ----------------- |  | -------------------------- |  | ---------------------------------------- | ------- | -------------------------- | ---
|Property Name                   |  | BuildingType |  | Market           |  | Year(s)Built/Renovated |  | NumberofBuildings |  | Net RentableSquare Feet(3) |  | Total BaseRent for Year Ended12/31/04(4) |         | PercentLeasedAs of12/31/04
|                                |  |              |  |                  |  |                        |  |                   |  | (in thousands)             |  | (in thousands)                           |         |                           
|1676 International Drive(1)     |  | Office       |  | Metro. Wash., DC |  | 1999                   |  | 1                 |  | 295                        |  | $                                        | 8,544   |                            | 100
|8260 Greensboro(1)              |  | Office       |  | Metro. Wash., DC |  | 1980                   |  | 1                 |  | 156                        |  |                                          | 2,309   |                            | 70 
|                                |  |              |  |                  |  |                        |  |                   |  |                            |  |                                          |         |                            |    
|Total Mid-Atlantic Regions      |  |              |  |                  |  |                        |  | 2                 |  | 451                        |  |                                          | 10,853  |                            |    
|                                |  |              |  |                  |  |                        |  |                   |  |                            |  |                                          |         |                            |    
|Broadmoor Austin(2)             |  | Office       |  | Austin           |  | 1991                   |  | 7                 |  | 1,112                      |  |                                          | 20,359  |                            | 100
|                                |  |              |  |                  |  |                        |  |                   |  |                            |  |                                          |         |                            |    
|Total Southwest Region          |  |              |  |                  |  |                        |  | 7                 |  | 1,112                      |  |                                          | 20,359  |                            |    
|                                |  |              |  |                  |  |                        |  |                   |  |                            |  |                                          |         |                            |    
|Total Unconsolidated Properties |  |              |  |                  |  |                        |  | 9                 |  | 1,563                      |  | $                                        | 31,212  |                            |    
|                                |  |              |  |                  |  |                        |  |                   |  |                            |  |                                          |         |                            |    
|Total Properties                |  |              |  |                  |  |                        |  | 133               |  | 19,735                     |  | $                                        | 309,850 |                            |    
|                                |  |              |  |                  |  |                        |  |                   |  |                            |  |                                          |         |                            |    

---

|(1) | Properties owned by Tysons International Partners of which we own a 25% non-controlling
interest. Net rentable square feet and total base rent is presented at 100%.
|--- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(2) | Properties owned by Broadmoor Austin Associates of which we own a 50% non-controlling
interest. Net rentable square feet and total base rent is presented at 100%.
|--- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(3) | Net rentable square feet defines the area of a property for which a tenant is required to pay
rent, which includes the actual rentable area plus a portion of the common areas of the property allocated to a tenant.
|--- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(4) | Total base rent for the year ended December 31, 2004 includes the fixed rental amount due for
the year ended December 31, 2004 under contractual lease obligations, which excludes (1) lease termination payments; (2) parking rent; (3) future contractual or contingent rent escalations; and (4) additional rent payable by tenants for items such
as common area maintenance, real estate taxes and other expense reimbursements.
|--- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



At December 31, 2004, we had $785.7 million and $191.1 million of mortgages on our consolidated and unconsolidated properties, respectively. Our pro rata share of the combined debt for both consolidated and
unconsolidated properties totals $807.0 million representing 66.5% of our total pro rata outstanding indebtedness. See Item 7. Managements Discussion and Analysis of Financial Condition and Results of Operations  Liquidity and
Capital Resources for a discussion of mortgage debt related to our properties.



13



---

##### Table of Contents

##### Index to Financial Statements

Our properties are leased to local, national and foreign companies engaged in a variety of businesses
including, but not limited to, computer systems design, management, scientific, insurance, broadcasting and telecommunications, legal services, and information services. As of December 31, 2004, we had approximately 950 tenants, with our largest 20
tenants representing 32% of our total net rentable square feet leased and 37% of base rental revenue of our wholly-owned plus our pro rata share of both consolidated and unconsolidated joint venture properties as follows:



|   |  |                                              |  |                            |  |                                      |  |                                        |        |  
|-- |  | -------------------------------------------- |  | -------------------------- |  | ------------------------------------ |  | -------------------------------------- | ------ | -
|   |  | Tenant                                       |  | Square Feet Leased (000s) |  | Percentage of Company Leased Sq. Ft. |  | Annualized Base Rental Revenue (000s) |       
|1  |  | International Business Machines              |  | 973                        |  | 6%                                   |  | $                                      | 18,576 |  
|2  |  | Kaiser Foundation Health Plan                |  | 382                        |  | 2%                                   |  | $                                      | 11,848 |  
|3  |  | 7-11, Inc.                                   |  | 504                        |  | 3%                                   |  | $                                      | 9,425  |  
|4  |  | Northrop Grumman Corporation                 |  | 267                        |  | 2%                                   |  | $                                      | 7,247  |  
|5  |  | General Services Administration  U.S. Govt. |  | 301                        |  | 2%                                   |  | $                                      | 5,786  |  
|6  |  | AT & T                                       |  | 205                        |  | 1%                                   |  | $                                      | 5,328  |  
|7  |  | CGI Group, Inc.                              |  | 264                        |  | 2%                                   |  | $                                      | 5,008  |  
|8  |  | R.R. Donnelley                               |  | 257                        |  | 2%                                   |  | $                                      | 4,872  |  
|9  |  | Aspen Systems Corporation                    |  | 208                        |  | 1%                                   |  | $                                      | 4,625  |  
|10 |  | Burlington Resources                         |  | 199                        |  | 1%                                   |  | $                                      | 4,266  |  
|11 |  | Perot Systems                                |  | 161                        |  | 1%                                   |  | $                                      | 4,253  |  
|12 |  | Americredit                                  |  | 238                        |  | 1%                                   |  | $                                      | 4,165  |  
|13 |  | World Savings & Loan                         |  | 157                        |  | 1%                                   |  | $                                      | 4,056  |  
|14 |  | Brandes Investments                          |  | 128                        |  | 1%                                   |  | $                                      | 4,000  |  
|15 |  | National Union Fire Insurance (AIG)          |  | 193                        |  | 1%                                   |  | $                                      | 3,915  |  
|16 |  | Thomson Corporation                          |  | 210                        |  | 1%                                   |  | $                                      | 3,671  |  
|17 |  | HMS Host                                     |  | 102                        |  | 1%                                   |  | $                                      | 3,365  |  
|18 |  | Host Celanese                                |  | 185                        |  | 1%                                   |  | $                                      | 3,337  |  
|19 |  | Verizon Communications                       |  | 182                        |  | 1%                                   |  | $                                      | 3,209  |  
|20 |  | The Lewin Group                              |  | 103                        |  | 1%                                   |  | $                                      | 3,179  |  
|   |  |                                              |  |                           
|   |  | Total % of portfolio leased square feet      |  |                            |  |                                      |  |                                        | 32     | %
|   |  | Total % of portfolio base rental revenue     |  |                            |  |                                      |  |                                        | 37     | %



Approximately 64% of
our total leased rentable square footage is under full service gross leases under which tenants typically pay for all real estate taxes and operating expenses above those for an established base year or expense stop. Our remaining square footage is
under triple net and modified gross leases. Triple net and modified gross leases are those where tenants pay not only base rent, but also some or all real estate taxes and operating expenses of the leased property. Tenants generally reimburse us the
full direct cost, without regard to a base year or expense stop, for use of lighting, heating and air conditioning during non-business hours, and for on-site monthly employee and visitor parking. We are generally responsible for structural repairs.
Our in-place leases have terms, on average, ranging from five to seven years in length.



14



---

##### Table of Contents

##### Index to Financial Statements

The following table sets forth a 10-year schedule of the lease expirations for leases in place at our
properties as of December 31, 2004. The square feet and annualized base rent represents our wholly-owned properties plus our pro rata share of both consolidated and unconsolidated joint venture properties.



|                                              |  |      |       |   |      |   |        |      |  |   |        |   |  |      |       |   |      |   |        |      |  |   |       |   |  |      |        |   |      |   |       |            |  |   |        |   |  |   |       |   |  |   |       |  
|--------------------------------------------- |  | ---- | ----- | - | ---- | - | ------ | ---- |  | - | ------ | - |  | ---- | ----- | - | ---- | - | ------ | ---- |  | - | ----- | - |  | ---- | ------ | - | ---- | - | ----- | ---------- |  | - | ------ | - |  | - | ----- | - |  | - | ----- | -
|Office Properties(1)                          |  | 2005 |       |   | 2006 |   |        | 2007 |  |   | 2008   |   |  | 2009 |       |   | 2010 |   |        | 2011 |  |   | 2012  |   |  | 2013 |        |   | 2014 |   |       | Thereafter | 
|Mid-Atlantic Region                           |  |      |       |   |      |   |        |      |  |   |        |   |  |      |       |   |      |   |        |      |  |   |       |   |  |      |        |   |      |   |       |            |  |   |        |   |  |   |       |   |  |   |       |  
|Square Feet Expiring (000s)                  |  |      | 309   |   |      |   | 647    |      |  |   | 608    |   |  |      | 299   |   |      |   | 538    |      |  |   | 197   |   |  |      | 495    |   |      |   | 111   |            |  |   | 9      |   |  |   | 164   |   |  |   | 139   |  
|Square Feet as a % of NRA                     |  |      | 8     | % |      |   | 16     | %    |  |   | 15     | % |  |      | 7     | % |      |   | 13     | %    |  |   | 5     | % |  |      | 12     | % |      |   | 3     | %          |  |   | 0      | % |  |   | 4     | % |  |   | 3     | %
|Annualized Base Rent in Expiring Year (000s) |  | $    | 8,249 |   |      | $ | 16,730 |      |  | $ | 15,100 |   |  | $    | 8,256 |   |      | $ | 14,772 |      |  | $ | 5,220 |   |  | $    | 11,849 |   |      | $ | 3,534 |            |  | $ | 232    |   |  | $ | 4,641 |   |  | $ | 4,310 |  
|Annualized Base Rent PSF in Expiring Year     |  | $    | 26.70 |   |      | $ | 25.86  |      |  | $ | 24.84  |   |  | $    | 27.61 |   |      | $ | 27.46  |      |  | $ | 26.50 |   |  | $    | 23.94  |   |      | $ | 31.84 |            |  | $ | 25.78  |   |  | $ | 28.30 |   |  | $ | 31.01 |  
|Number of Leases Expiring                     |  |      | 39    |   |      |   | 40     |      |  |   | 35     |   |  |      | 18    |   |      |   | 38     |      |  |   | 12    |   |  |      | 12     |   |      |   | 3     |            |  |   | 2      |   |  |   | 5     |   |  |   | 4     |  
|                                              |  |      |       |   |      |   |        |      |  |   |       
|Midwest Region                                |  |      |       |   |      |   |        |      |  |   |        |   |  |      |       |   |      |   |        |      |  |   |       |   |  |      |        |   |      |   |       |            |  |   |        |   |  |   |       |   |  |   |       |  
|Square Feet Expiring (000s)                  |  |      | 116   |   |      |   | 197    |      |  |   | 137    |   |  |      | 191   |   |      |   | 181    |      |  |   | 144   |   |  |      | 405    |   |      |   | 203   |            |  |   | 236    |   |  |   | 61    |   |  |   | 301   |  
|Square Feet as a % of NRA                     |  |      | 5     | % |      |   | 8      | %    |  |   | 6      | % |  |      | 8     | % |      |   | 7      | %    |  |   | 6     | % |  |      | 16     | % |      |   | 8     | %          |  |   | 10     | % |  |   | 2     | % |  |   | 12    | %
|Annualized Base Rent in Expiring Year (000s) |  | $    | 2,226 |   |      | $ | 4,326  |      |  | $ | 3,349  |   |  | $    | 3,354 |   |      | $ | 3,663  |      |  | $ | 2,848 |   |  | $    | 9,896  |   |      | $ | 4,612 |            |  | $ | 5,107  |   |  | $ | 1,369 |   |  | $ | 6,345 |  
|Annualized Base Rent PSF in Expiring Year     |  | $    | 19.19 |   |      | $ | 21.96  |      |  | $ | 24.45  |   |  | $    | 17.56 |   |      | $ | 20.24  |      |  | $ | 19.78 |   |  | $    | 24.43  |   |      | $ | 22.72 |            |  | $ | 21.64  |   |  | $ | 22.44 |   |  | $ | 21.08 |  
|Number of Leases Expiring                     |  |      | 28    |   |      |   | 23     |      |  |   | 23     |   |  |      | 19    |   |      |   | 24     |      |  |   | 9     |   |  |      | 10     |   |      |   | 9     |            |  |   | 9      |   |  |   | 9     |   |  |   | 8     |  
|                                              |  |      |       |   |      |   |        |      |  |   |       
|Southwest Region                              |  |      |       |   |      |   |        |      |  |   |        |   |  |      |       |   |      |   |        |      |  |   |       |   |  |      |        |   |      |   |       |            |  |   |        |   |  |   |       |   |  |   |       |  
|Square Feet Expiring (000s)                  |  |      | 527   |   |      |   | 610    |      |  |   | 1,049  |   |  |      | 470   |   |      |   | 892    |      |  |   | 380   |   |  |      | 1,098  |   |      |   | 143   |            |  |   | 650    |   |  |   | 109   |   |  |   | 323   |  
|Square Feet as a % of NRA                     |  |      | 7     | % |      |   | 9      | %    |  |   | 15     | % |  |      | 7     | % |      |   | 13     | %    |  |   | 5     | % |  |      | 15     | % |      |   | 2     | %          |  |   | 9      | % |  |   | 2     | % |  |   | 5     | %
|Annualized Base Rent in Expiring Year (000s) |  | $    | 9,423 |   |      | $ | 12,350 |      |  | $ | 19,827 |   |  | $    | 7,701 |   |      | $ | 18,381 |      |  | $ | 7,018 |   |  | $    | 22,512 |   |      | $ | 3,130 |            |  | $ | 11,922 |   |  | $ | 1,897 |   |  | $ | 5,475 |  
|Annualized Base Rent PSF in Expiring Year     |  | $    | 17.88 |   |      | $ | 20.25  |      |  | $ | 18.90  |   |  | $    | 16.39 |   |      | $ | 20.61  |      |  | $ | 18.47 |   |  | $    | 20.50  |   |      | $ | 21.89 |            |  | $ | 18.34  |   |  | $ | 17.40 |   |  | $ | 16.95 |  
|Number of Leases Expiring                     |  |      | 54    |   |      |   | 39     |      |  |   | 45     |   |  |      | 47    |   |      |   | 44     |      |  |   | 16    |   |  |      | 13     |   |      |   | 5     |            |  |   | 9      |   |  |   | 4     |   |  |   | 3     |  
|                                              |  |      |       |   |      |   |        |      |  |   |       
|Northern California Region                    |  |      |       |   |      |   |        |      |  |   |        |   |  |      |       |   |      |   |        |      |  |   |       |   |  |      |        |   |      |   |       |            |  |   |        |   |  |   |       |   |  |   |       |  
|Square Feet Expiring (000s)                  |  |      | 106   |   |      |   | 101    |      |  |   | 231    |   |  |      | 205   |   |      |   | 216    |      |  |   | 81    |   |  |      | 335    |   |      |   | 55    |            |  |   | 0      |   |  |   | 220   |   |  |   | 16    |  
|Square Feet as a % of NRA                     |  |      | 6     | % |      |   | 6      | %    |  |   | 13     | % |  |      | 12    | % |      |   | 12     | %    |  |   | 5     | % |  |      | 19     | % |      |   | 3     | %          |  |   | 0      | % |  |   | 12    | % |  |   | 1     | %
|Annualized Base Rent in Expiring Year (000s) |  | $    | 3,453 |   |      | $ | 2,865  |      |  | $ | 6,670  |   |  | $    | 6,187 |   |      | $ | 6,195  |      |  | $ | 2,854 |   |  | $    | 11,025 |   |      | $ | 1,609 |            |  | $ | 0      |   |  | $ | 3,823 |   |  | $ | 541   |  
|Annualized Base Rent PSF in Expiring Year     |  | $    | 32.58 |   |      | $ | 28.37  |      |  | $ | 28.87  |   |  | $    | 30.18 |   |      | $ | 28.68  |      |  | $ | 35.23 |   |  | $    | 32.91  |   |      | $ | 29.95 |            |  | $ | 0.00   |   |  | $ | 17.38 |   |  | $ | 33.81 |  
|Number of Leases Expiring                     |  |      | 32    |   |      |   | 15     |      |  |   | 21     |   |  |      | 11    |   |      |   | 17     |      |  |   | 3     |   |  |      | 2      |   |      |   | 2     |            |  |   | 0      |   |  |   | 1     |   |  |   | 1     |  
|                                              |  |      |       |   |      |   |        |      |  |   |       
|Southern California Region                    |  |      |       |   |      |   |        |      |  |   |        |   |  |      |       |   |      |   |        |      |  |   |       |   |  |      |        |   |      |   |       |            |  |   |        |   |  |   |       |   |  |   |       |  
|Square Feet Expiring (000s)                  |  |      | 126   |   |      |   | 111    |      |  |   | 117    |   |  |      | 87    |   |      |   | 95     |      |  |   | 51    |   |  |      | 128    |   |      |   | 1     |            |  |   | 12     |   |  |   | 14    |   |  |   | 0     |  
|Square Feet as a % of NRA                     |  |      | 15    | % |      |   | 14     | %    |  |   | 14     | % |  |      | 11    | % |      |   | 12     | %    |  |   | 6     | % |  |      | 16     | % |      |   | 0     | %          |  |   | 1      | % |  |   | 2     | % |  |   | 0     | %
|Annualized Base Rent in Expiring Year (000s) |  | $    | 3,325 |   |      | $ | 2,810  |      |  | $ | 3,255  |   |  | $    | 2,424 |   |      | $ | 2,775  |      |  | $ | 1,775 |   |  | $    | 4,461  |   |      | $ | 58    |            |  | $ | 469    |   |  | $ | 497   |   |  | $ | 0     |  
|Annualized Base Rent PSF in Expiring Year     |  | $    | 26.39 |   |      | $ | 25.32  |      |  | $ | 27.82  |   |  | $    | 27.86 |   |      | $ | 29.21  |      |  | $ | 34.80 |   |  | $    | 34.85  |   |      | $ | 58.00 |            |  | $ | 39.08  |   |  | $ | 35.50 |   |  | $ | 0.00  |  
|Number of Leases Expiring                     |  |      | 48    |   |      |   | 37     |      |  |   | 33     |   |  |      | 13    |   |      |   | 17     |      |  |   | 5     |   |  |      | 2      |   |      |   | 1     |            |  |   | 1      |   |  |   | 2     |   |  |   | 0     |  



15



---

##### Table of Contents

##### Index to Financial Statements

|                                              |  |      |        |   |      |   |        |      |  |   |        |   |  |      |        |   |      |   |        |      |  |   |        |   |  |      |        |   |      |   |        |            |  |   |        |   |  |   |        |   |  |   |        |  
|--------------------------------------------- |  | ---- | ------ | - | ---- | - | ------ | ---- |  | - | ------ | - |  | ---- | ------ | - | ---- | - | ------ | ---- |  | - | ------ | - |  | ---- | ------ | - | ---- | - | ------ | ---------- |  | - | ------ | - |  | - | ------ | - |  | - | ------ | -
|Office Properties                             |  | 2005 |        |   | 2006 |   |        | 2007 |  |   | 2008   |   |  | 2009 |        |   | 2010 |   |        | 2011 |  |   | 2012   |   |  | 2013 |        |   | 2014 |   |        | Thereafter | 
|Total Office Properties                       |  |      |        |   |      |   |        |      |  |   |        |   |  |      |        |   |      |   |        |      |  |   |        |   |  |      |        |   |      |   |        |            |  |   |        |   |  |   |        |   |  |   |        |  
|Square Feet Expiring (000s)                  |  |      | 1,184  |   |      |   | 1,666  |      |  |   | 2,142  |   |  |      | 1,252  |   |      |   | 1,922  |      |  |   | 853    |   |  |      | 2,461  |   |      |   | 513    |            |  |   | 907    |   |  |   | 568    |   |  |   | 779    |  
|Square Feet as a % of NRA                     |  |      | 7      | % |      |   | 10     | %    |  |   | 13     | % |  |      | 8      | % |      |   | 12     | %    |  |   | 5      | % |  |      | 15     | % |      |   | 3      | %          |  |   | 6      | % |  |   | 4      | % |  |   | 5      | %
|Annualized Base Rent in Expiring Year (000s) |  | $    | 26,676 |   |      | $ | 39,081 |      |  | $ | 48,201 |   |  | $    | 27,922 |   |      | $ | 45,786 |      |  | $ | 19,715 |   |  | $    | 59,743 |   |      | $ | 12,943 |            |  | $ | 17,730 |   |  | $ | 12,227 |   |  | $ | 16,671 |  
|Annualized Base Rent PSF in Expiring Year     |  | $    | 22.53  |   |      | $ | 23.46  |      |  | $ | 22.50  |   |  | $    | 22.30  |   |      | $ | 23.82  |      |  | $ | 23.11  |   |  | $    | 24.28  |   |      | $ | 25.23  |            |  | $ | 19.55  |   |  | $ | 21.53  |   |  | $ | 21.40  |  
|Number of Leases Expiring                     |  |      | 201    |   |      |   | 154    |      |  |   | 157    |   |  |      | 108    |   |      |   | 140    |      |  |   | 45     |   |  |      | 39     |   |      |   | 20     |            |  |   | 21     |   |  |   | 21     |   |  |   | 16     |  
|                                              |  |      |        |   |      |   |        |      |  |   |       
|Industrial Properties(1)                      |  | 2005 |        |   | 2006 |   |        | 2007 |  |   | 2008   |   |  | 2009 |        |   | 2010 |   |        | 2011 |  |   | 2012   |   |  | 2013 |        |   | 2014 |   |        | Thereafter | 
|Midwest Region                                |  |      |        |   |      |   |        |      |  |   |        |   |  |      |        |   |      |   |        |      |  |   |        |   |  |      |        |   |      |   |        |            |  |   |        |   |  |   |        |   |  |   |        |  
|Square Feet Expiring (000s)                  |  |      | 13     |   |      |   | 202    |      |  |   | 28     |   |  |      | 267    |   |      |   | 50     |      |  |   | 0      |   |  |      | 0      |   |      |   | 0      |            |  |   | 0      |   |  |   | 0      |   |  |   | 0      |  
|Square Feet as a % of NRA                     |  |      | 2      | % |      |   | 30     | %    |  |   | 4      | % |  |      | 39     | % |      |   | 7      | %    |  |   | 0      | % |  |      | 0      | % |      |   | 0      | %          |  |   | 0      | % |  |   | 0      | % |  |   | 0      | %
|Annualized Base Rent in Expiring Year (000s) |  | $    | 92     |   |      | $ | 711    |      |  | $ | 165    |   |  | $    | 988    |   |      | $ | 262    |      |  | $ | 0      |   |  | $    | 0      |   |      | $ | 0      |            |  | $ | 0      |   |  | $ | 0      |   |  | $ | 0      |  
|Annualized Base Rent PSF in Expiring Year     |  | $    | 7.08   |   |      | $ | 3.52   |      |  | $ | 5.89   |   |  | $    | 3.70   |   |      | $ | 5.24   |      |  | $ | 0.00   |   |  | $    | 0.00   |   |      | $ | 0.00   |            |  | $ | 0.00   |   |  | $ | 0.00   |   |  | $ | 0.00   |  
|Number of Leases Expiring                     |  |      | 1      |   |      |   | 2      |      |  |   | 2      |   |  |      | 1      |   |      |   | 1      |      |  |   | 0      |   |  |      | 0      |   |      |   | 0      |            |  |   | 0      |   |  |   | 0      |   |  |   | 0      |  
|                                              |  |      |        |   |      |   |        |      |  |   |       
|Southern California Region                    |  |      |        |   |      |   |        |      |  |   |        |   |  |      |        |   |      |   |        |      |  |   |        |   |  |      |        |   |      |   |        |            |  |   |        |   |  |   |        |   |  |   |        |  
|Square Feet Expiring (000s)                  |  |      | 306    |   |      |   | 144    |      |  |   | 429    |   |  |      | 184    |   |      |   | 290    |      |  |   | 22     |   |  |      | 0      |   |      |   | 0      |            |  |   | 0      |   |  |   | 0      |   |  |   | 0      |  
|Square Feet as a % of NRA                     |  |      | 20     | % |      |   | 9      | %    |  |   | 28     | % |  |      | 12     | % |      |   | 19     | %    |  |   | 1      | % |  |      | 0      | % |      |   | 0      | %          |  |   | 0      | % |  |   | 0      | % |  |   | 0      | %
|Annualized Base Rent in Expiring Year (000s) |  | $    | 2,190  |   |      | $ | 1,957  |      |  | $ | 2,962  |   |  | $    | 1,403  |   |      | $ | 2,164  |      |  | $ | 172    |   |  | $    | 0      |   |      | $ | 0      |            |  | $ | 0      |   |  | $ | 0      |   |  | $ | 0      |  
|Annualized Base Rent PSF in Expiring Year     |  | $    | 7.16   |   |      | $ | 13.59  |      |  | $ | 6.90   |   |  | $    | 7.63   |   |      | $ | 7.46   |      |  | $ | 7.82   |   |  | $    | 0.00   |   |      | $ | 0.00   |            |  | $ | 0.00   |   |  | $ | 0.00   |   |  | $ | 0.00   |  
|Number of Leases Expiring                     |  |      | 7      |   |      |   | 3      |      |  |   | 6      |   |  |      | 4      |   |      |   | 8      |      |  |   | 1      |   |  |      | 0      |   |      |   | 0      |            |  |   | 0      |   |  |   | 0      |   |  |   | 0      |  
|                                              |  |      |        |   |      |   |        |      |  |   |       
|Total Industrial Properties                   |  |      |        |   |      |   |        |      |  |   |        |   |  |      |        |   |      |   |        |      |  |   |        |   |  |      |        |   |      |   |        |            |  |   |        |   |  |   |        |   |  |   |        |  
|Square Feet Expiring (000s)                  |  |      | 319    |   |      |   | 346    |      |  |   | 457    |   |  |      | 451    |   |      |   | 340    |      |  |   | 22     |   |  |      | 0      |   |      |   | 0      |            |  |   | 0      |   |  |   | 0      |   |  |   | 0      |  
|Square Feet as a % of NRA                     |  |      | 14     | % |      |   | 16     | %    |  |   | 21     | % |  |      | 20     | % |      |   | 15     | %    |  |   | 1      | % |  |      | 0      | % |      |   | 0      | %          |  |   | 0      | % |  |   | 0      | % |  |   | 0      | %
|Annualized Base Rent in Expiring Year (000s) |  | $    | 2,282  |   |      | $ | 2,668  |      |  | $ | 3,127  |   |  | $    | 2,391  |   |      | $ | 2,426  |      |  | $ | 172    |   |  | $    | 0      |   |      | $ | 0      |            |  | $ | 0      |   |  | $ | 0      |   |  | $ | 0      |  
|Annualized Base Rent PSF in Expiring Year     |  | $    | 7.15   |   |      | $ | 7.71   |      |  | $ | 6.84   |   |  | $    | 5.30   |   |      | $ | 7.14   |      |  | $ | 7.82   |   |  | $    | 0.00   |   |      | $ | 0.00   |            |  | $ | 0.00   |   |  | $ | 0.00   |   |  | $ | 0.00   |  
|Number of Leases Expiring                     |  |      | 8      |   |      |   | 5      |      |  |   | 8      |   |  |      | 5      |   |      |   | 9      |      |  |   | 1      |   |  |      | 0      |   |      |   | 0      |            |  |   | 0      |   |  |   | 0      |   |  |   | 0      |  

---

|(1) | Net rentable square feet (NRA) defines the area of a property for which a tenant is required
to pay rent, which includes the actual rentable area plus a portion of the common areas of the property allocated to a tenant.
|--- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



16



---

##### Table of Contents

##### Index to Financial Statements

Insurance



We have and will keep in force comprehensive insurance, including liability, fire, workers compensation, extended coverage, rental loss and, when
available on reasonable commercial terms, flood, wind, earthquake and terrorism insurance, with policy specifications, limits, exclusions and deductibles customarily carried for similar properties. We currently maintain insurance to cover
environmental conditions and business interruption if and when they occur. This policy covers both governmental and third-party claims associated with the covered environmental conditions. Our real property insurance policies exclude earthquake
coverage for properties located within California. As a result, we maintain a separate $125 million blanket earthquake policy on the properties we own in Northern and Southern California. Our real property insurance policies exclude terrorism
coverage. However, we maintain a separate $100 million blanket stand-alone terrorism policy on the properties we own. Certain types of losses, however, generally of a catastrophic nature, such as acts of war, are either uninsurable or the cost of
obtaining insurance is so high that it is more prudent to accept the risk of loss. If more terrorists incidents occur, however, future insurance policies purchased by us may expressly exclude hostile acts, and it may then become economically
unfeasible to obtain insurance covering terrorist attacks. In the event of such terrorist acts or other catastrophic losses, we would expect our insurance premiums to increase thereafter, which may have an adverse impact on our cash flow. We believe
that our properties as of the date of this filing are adequately insured in accordance with industry standards.



Item 3. Legal Proceedings



Neither
we nor our affiliates (other than in a representative capacity) are presently subject to any material litigation. To our knowledge, no litigation has been threatened against us or our affiliates other than routine actions and administrative
proceedings, substantially all of which are expected to be covered by liability insurance and which, in the aggregate, are not expected to have a material adverse effect on our business or financial condition.



Item 4. Submission of Matters to a Vote of Security Holders



No matter was submitted to a vote of our security holders during the fourth quarter of 2004 through the solicitation of proxies or otherwise.



17



---

##### Table of Contents

##### Index to Financial Statements

PART II



Item 5. Market for Registrants Common Equity and Related Shareholder Matters



Market Information



Our common shares commenced trading on the NYSE on October 17, 1996 under the symbol PP. As of March 14, 2005, the last reported sales price
per common share on the NYSE was $36.10 per common share. The following table sets forth the high and low sales price per common share reported on the NYSE as traded for the periods indicated.



|               |  |       |  |      
|-------------- |  | ----- |  | -----
|Period         |  | High  |  | Low  
|2004           |  |       |  |      
|Fourth Quarter |  | 39.87 |  | 34.79
|Third Quarter  |  | 37.43 |  | 32.94
|Second Quarter |  | 37.31 |  | 29.25
|First Quarter  |  | 36.92 |  | 32.41
|2003           |  |       |  |      
|Fourth Quarter |  | 32.99 |  | 29.58
|Third Quarter  |  | 31.41 |  | 28.79
|Second Quarter |  | 30.09 |  | 26.85
|First Quarter  |  | 28.28 |  | 25.27



Holders



At March 14, 2005, we had approximately 472 holders of record and
approximately 13,001 beneficial owners of our common shares. The number of beneficial owners does not include beneficial owners for whom Cede & Co. or others act as nominee. As of March 14, 2005, all of our 3,773,585 Series D Preferred Shares,
which are convertible into our common shares subject to certain limitations, were held by Security Capital Preferred Growth, Incorporated. In addition, the common units of limited partnership interest in the operating partnership, which are
redeemable for common shares subject to limitations, were held by 19 entities or persons.



Dividends



We have
adopted a policy of paying regular quarterly distributions on our common shares and cash distributions have been paid on our common shares with respect to each such period since our inception. The following table sets forth information regarding the
declaration and payment of distributions by us in 2004 and 2003.



18



---

##### Table of Contents

##### Index to Financial Statements

|                                  |  |                        |  |                         |  |                             |      
|--------------------------------- |  | ---------------------- |  | ----------------------- |  | --------------------------- | -----
|Period Which Distribution Relates |  | DistributionRecordDate |  | DistributionPaymentDate |  | Per ShareDistributionAmount
|2004                              |  |                        |  |                         |  |                             |      
|Fourth Quarter                    |  | 12/27/04               |  | 1/7/05                  |  | $                           | 0.560
|Third Quarter                     |  | 9/30/04                |  | 10/08/04                |  | $                           | 0.560
|Second Quarter                    |  | 6/30/04                |  | 7/09/04                 |  | $                           | 0.560
|First Quarter                     |  | 3/31/04                |  | 4/09/04                 |  | $                           | 0.560
|2003                              |  |                        |  |                         |  |                             |      
|Fourth Quarter                    |  | 12/26/03               |  | 1/9/04                  |  | $                           | 0.560
|Third Quarter                     |  | 9/30/03                |  | 10/10/03                |  | $                           | 0.560
|Second Quarter                    |  | 6/30/03                |  | 7/11/03                 |  | $                           | 0.560
|First Quarter                     |  | 3/31/03                |  | 4/11/03                 |  | $                           | 0.560



For tax purposes, the
foregoing distributions represent an approximate 45.8% and 36.3% return of capital in 2004 and 2003, respectively. In order to maintain our qualification as a REIT, we must make annual distributions to our shareholders of at least 90% of our taxable
income, excluding net capital gains. During the years ended December 31, 2004 and 2003, we declared distributions totaling $2.24 per share. Under certain circumstances we may be required to make distributions in excess of cash available for
distribution in order to meet such REIT distribution requirements. In such event, we presently would expect to borrow funds, or to sell assets for cash, to the extent necessary to obtain cash sufficient to make the distributions required to retain
our qualification as a REIT for federal income tax purposes.



We declared a cash distribution for the first quarter of 2005 in the amount of $.56 per share, payable on April 8, 2005 to holders of record on March 31, 2005. We currently anticipate that we will maintain at least the current distribution
rate for the immediate future, unless actual results of operations, economic conditions or other factors differ from our current expectations. Future distributions, if any, paid by us will be at the discretion of our board of trustees and will
depend on our cash flow, our financial condition, capital requirements, the annual distribution requirements under the REIT provisions of the Internal Revenue Code and such other factors as our board of trustees deems relevant.



Securities Authorized for Issuance under Equity Compensation Plans



The following table sets forth certain information, as of December 31, 2004,
with respect to all compensation plans previously approved by our security holders, as well as equity compensation plans not previously approved by our security holders.



|                                                           |  |                                                                                           |     |  |                                                                          |       |     |                                                                                                                                            |           |    
|---------------------------------------------------------- |  | ----------------------------------------------------------------------------------------- | --- |  | ------------------------------------------------------------------------ | ----- | --- | ------------------------------------------------------------------------------------------------------------------------------------------ | --------- | ---
|                                                           |  | Number of Securities To be Issued UponExercise of Outstanding Options,Warrants
and Rights |     |  | Weighted AverageExercise Price ofOutstanding Options,Warrants and Rights |       |     | Number of SecuritiesRemaining AvailableFor Future IssuanceUnder
EquityCompensation Plans(Excluding SecuritiesReflected in Far Left Column) |          
|Equity compensation plans approved by security holders     |  | 647,251                                                                                   |     |  | $                                                                        | 30.11 |     |                                                                                                                                            | 2,186,610 |    
|Equity compensation plans not approved by security holders |  | 80,952                                                                                    | (1) |  |                                                                          |       | (1) |                                                                                                                                            |           | (1)
|Total                                                      |  | 728,203                                                                                   |     |  | $                                                                        | 30.11 |     |                                                                                                                                            | 2,186,610 |    
|                                                           |  |                                                                                           |     |  |                                                                          |       |     |                                                                                                                                            |           |    

---

|(1) | Pursuant to our Key Employee Share Option Plan, officers and other selected key employees of our operating partnership or Prentiss Properties Resources, Inc. and its
subsidiaries who earn bonuses have the option of deferring the payment of such bonuses. Such deferred compensation may be used to purchase various mutual funds and/or our common shares. Pursuant to the participants election, we purchase shares
on the open market and place them in a trust for the benefit of such participant. The trust may deliver to the participant shares or
|--- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



19



---

##### Table of Contents

##### Index to Financial Statements

the fair market value of such shares beginning six months from the date they were placed in the trust.
The purpose of the deferred compensation plan is to provide a vehicle for the payment of compensation otherwise payable to the participants, in a form that will provide incentives and rewards for meritorious performance and encourage the
recipients continuance as our employees. During the 2000 plan year we provided a discount of 15% on the purchase price of our common shares purchased by participants in the plan. For the plan years thereafter, we did not provide for a discount
on our common shares. As of December 31, 2004, the investments included 80,952 of our common shares purchased in the open market.



|                                     |  |                                     |  |                              |       |                                                                               |   |                                                                                   |        
|------------------------------------ |  | ----------------------------------- |  | ---------------------------- | ----- | ----------------------------------------------------------------------------- | - | --------------------------------------------------------------------------------- | -------
|Period                               |  | Total Number of SharesPurchased (1) |  | Average Price Paid per Share |       | Total Number ofShares Purchased asPart of PubliclyAnnounced Plans or Programs |   | Maximum Number of Shares that MayYet Be Purchased Under the Plans or Programs (2)
|October 1, 2004  October 31, 2004   |  | 5,218                               |  | $                            | 36.10 |                                                                               |  |                                                                                   | 997,200
|November 1, 2004  November 30, 2004 |  |                                    |  | $                            |      |                                                                               |  |                                                                                   |       
|December 1, 2004  December 31, 2004 |  |                                    |  | $                            |      |                                                                               |  |                                                                                   |       
|Total                                |  | 5,218                               |  | $                            | 36.10 |                                                                               |  |                                                                                   | 997,200

---

|(1) | During October 2004, we purchased 1,218 of our common shares pursuant to our Key Employee
Share Option Plan and we received 4,000 of our common shares due to the forfeiture of stock grants. The purchases described in this footnote were not made pursuant to a publicly announced plan or program.
|--- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(2) | During 1998, our board of trustees authorized the repurchase of up to 2.0 million common
shares in the open market or negotiated private transactions. On January 4, 2000, the board of trustees authorized a 1.5 million-share increase in the share repurchase program bringing the total authorization to 3.5 million common shares. On May 9,
2001, the board of trustees authorized an additional 1.0 million-share increase in the share repurchase program bringing the total authorization to 4.5 million shares. Since inception of the repurchase program, through December 31, 2004, we have
purchased 3,502,800 common shares and pursuant to current authorization, we have the ability to repurchase an additional 997,200 in the future.
|--- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



Item 6. Selected Financial Data



The following section sets forth our selected financial data. The following data should be read in conjunction with our historical Consolidated Financial Statements and notes thereto and Managements Discussion and Analysis of
Financial Condition and Results of Operations included elsewhere in this Form 10-K.



The selected historical consolidated financial data has been derived from our audited financial statements and notes thereto.



20



---

##### Table of Contents

##### Index to Financial Statements

|                                                                                                                                                  |      |                         |         |      |  |   |         |   |  |      |         |   |      |   |         |   |  |   |         |  
|------------------------------------------------------------------------------------------------------------------------------------------------- | ---- | ----------------------- | ------- | ---- |  | - | ------- | - |  | ---- | ------- | - | ---- | - | ------- | - |  | - | ------- | -
|Operating Data: (in thousands,
except per share amounts)                                                                                          |      | Year Ended December 31, |        
|                                                                                                                                                  | 2004 |                         |         | 2003 |  |   | 2002    |   |  | 2001 |         |   | 2000 |  
|Rental income                                                                                                                                     |      | $                       | 356,825 |      |  | $ | 314,718 |   |  | $    | 307,487 |   |      | $ | 287,389 |   |  | $ | 288,728 |  
|Service business and other income                                                                                                                 |      |                         | 13,909  |      |  |   | 16,769  |   |  |      | 4,386   |   |      |   | 5,042   |   |  |   | 4,555   |  
|                                                                                                                                                  |      |                         |         |      |  |   |         |   |  |      |         |   |      |   |         |   |  |   |         |  
|Total revenues                                                                                                                                    |      |                         | 370,734 |      |  |   | 331,487 |   |  |      | 311,873 |   |      |   | 292,431 |   |  |   | 293,283 |  
|                                                                                                                                                  |      |                         |         |      |  |   |         |   |  |      |         |   |      |   |         |   |  |   |         |  
|Property operating expenses and real estate taxes                                                                                                 |      |                         | 131,087 |      |  |   | 111,857 |   |  |      | 110,354 |   |      |   | 95,997  |   |  |   | 98,252  |  
|General and administrative and personnel costs                                                                                                    |      |                         | 11,803  |      |  |   | 10,988  |   |  |      | 10,361  |   |      |   | 10,396  |   |  |   | 9,790   |  
|Expenses of service business                                                                                                                      |      |                         | 9,998   |      |  |   | 10,513  |   |  |      |        |   |      |   |        |   |  |   |        |  
|Depreciation and amortization                                                                                                                     |      |                         | 92,315  |      |  |   | 72,483  |   |  |      | 61,944  |   |      |   | 52,804  |   |  |   | 53,592  |  
|                                                                                                                                                  |      |                         |         |      |  |   |         |   |  |      |         |   |      |   |         |   |  |   |         |  
|Total operating expenses                                                                                                                          |      |                         | 245,203 |      |  |   | 205,841 |   |  |      | 182,659 |   |      |   | 159,197 |   |  |   | 161,634 |  
|                                                                                                                                                  |      |                         |         |      |  |   |         |   |  |      |         |   |      |   |         |   |  |   |         |  
|Interest expense and amortization of financing costs                                                                                              |      |                         | (70,380 | )    |  |   | (69,516 | ) |  |      | (66,300 | ) |      |   | (63,804 | ) |  |   | (70,050 | )
|Merger termination fee, net                                                                                                                       |      |                         |        |      |  |   |        |   |  |      |        |   |      |   | 17,000  |   |  |   | 4,091   |  
|                                                                                                                                                  |      |                         |         |      |  |   |         |   |  |      |         |   |      |   |         |   |  |   |         |  
|Income from continuing operations before equity in income of unconsolidated joint ventures, loss on securities, impairment and minority
interests |      |                         | 55,151  |      |  |   | 56,130  |   |  |      | 62,914  |   |      |   | 86,430  |   |  |   | 65,690  |  
|Equity in income of unconsolidated joint ventures                                                                                                 |      |                         | 2,429   |      |  |   | 2,555   |   |  |      | 3,154   |   |      |   | 3,131   |   |  |   | 3,843   |  
|Loss on investment in securities                                                                                                                  |      |                         | (420    | )    |  |   |        |   |  |      |        |   |      |   |        |   |  |   | (1,000  | )
|Loss from impairment of mortgage loan                                                                                                             |      |                         | (2,900  | )    |  |   |        |   |  |      |        |   |      |   |        |   |  |   |        |  
|Impairment loss on real estate property                                                                                                           |      |                         |        |      |  |   |        |   |  |      |        |   |      |   | (4,765  | ) |  |   |        |  
|Minority interests(1)                                                                                                                             |      |                         | (2,744  | )    |  |   | (10,227 | ) |  |      | (10,450 | ) |      |   | (16,894 | ) |  |   | (14,928 | )
|                                                                                                                                                  |      |                         |         |      |  |   |         |   |  |      |         |   |      |   |         |   |  |   |         |  
|Income from continuing operations                                                                                                                 |      |                         | 51,516  |      |  |   | 48,458  |   |  |      | 55,618  |   |      |   | 67,902  |   |  |   | 53,605  |  
|                                                                                                                                                  |      |                         |         |      |  |   |         |   |  |      |         |   |      |   |         |   |  |   |         |  
|Income from discontinued operations                                                                                                               |      |                         | 3,354   |      |  |   | 6,034   |   |  |      | 10,966  |   |      |   | 16,611  |   |  |   | 16,489  |  
|Gain/(loss) from disposition of discontinued operations                                                                                           |      |                         | 11,957  |      |  |   | (4,457  | ) |  |      | 8,430   |   |      |   |        |   |  |   |        |  
|Loss from debt defeasance related to sale of real estate                                                                                          |      |                         | (5,316  | )    |  |   |        |   |  |      |        |   |      |   |        |   |  |   |        |  
|Minority interests related to discontinued operations(1)                                                                                          |      |                         | (310    | )    |  |   | (53     | ) |  |      | (733    | ) |      |   | (707    | ) |  |   | (730    | )
|                                                                                                                                                  |      |                         |         |      |  |   |         |   |  |      |         |   |      |   |         |   |  |   |         |  
|Discontinued operations                                                                                                                           |      |                         | 9,685   |      |  |   | 1,524   |   |  |      | 18,663  |   |      |   | 15,904  |   |  |   | 15,759  |  
|                                                                                                                                                  |      |                         |         |      |  |   |         |   |  |      |         |   |      |   |         |   |  |   |         |  
|Income before gain on sale of properties                                                                                                          |      |                         | 61,201  |      |  |   | 49,982  |   |  |      | 74,281  |   |      |   | 83,806  |   |  |   | 69,364  |  
|                                                                                                                                                  |      |                         |         |      |  |   |         |   |  |      |         |   |      |   |         |   |  |   |         |  
|Gain on sale of properties including land and an interest in a real estate partnership                                                            |      |                         | 1,222   |      |  |   | 9,435   |   |  |      |        |   |      |   | 18,660  |   |  |   | 221     |  
|                                                                                                                                                  |      |                         |         |      |  |   |         |   |  |      |         |   |      |   |         |   |  |   |         |  
|Net income                                                                                                                                        |      | $                       | 62,423  |      |  | $ | 59,417  |   |  | $    | 74,281  |   |      | $ | 102,466 |   |  | $ | 69,585  |  
|Preferred dividends                                                                                                                               |      |                         | (10,052 | )    |  |   | (8,452  | ) |  |      | (8,358  | ) |      |   | (7,887  | ) |  |   | (7,151  | )
|                                                                                                                                                  |      |                         |         |      |  |   |         |   |  |      |         |   |      |   |         |   |  |   |         |  
|Net income applicable to common shareholders                                                                                                      |      | $                       | 52,371  |      |  | $ | 50,965  |   |  | $    | 65,923  |   |      | $ | 94,579  |   |  | $ | 62,434  |  
|                                                                                                                                                  |      |                         |         |      |  |   |         |   |  |      |         |   |      |   |         |   |  |   |         |  
|Basic earnings per common share:                                                                                                                  |      |                         |         |      |  |   |         |   |  |      |         |   |      |   |         |   |  |   |         |  
|Income from continuing operations applicable to common shareholders                                                                               |      | $                       | 0.96    |      |  | $ | 1.23    |   |  | $    | 1.23    |   |      | $ | 2.14    |   |  | $ | 1.29    |  
|Discontinued operations                                                                                                                           |      | $                       | 0.22    |      |  | $ | 0.04    |   |  | $    | 0.49    |   |      | $ | 0.43    |   |  | $ | 0.43    |  
|                                                                                                                                                  |      |                         |         |      |  |   |         |   |  |      |         |   |      |   |         |   |  |   |         |  
|Net income applicable to common shareholders  basic                                                                                              |      | $                       | 1.18    |      |  | $ | 1.27    |   |  | $    | 1.72    |   |      | $ | 2.57    |   |  | $ | 1.72    |  
|                                                                                                                                                  |      |                         |         |      |  |   |         |   |  |      |         |   |      |   |         |   |  |   |         |  
|Weighted average number of common shares outstanding  basic                                                                                      |      |                         | 44,330  |      |  |   | 40,068  |   |  |      | 38,409  |   |      |   | 36,736  |   |  |   | 36,273  |  
|                                                                                                                                                  |      |                         |         |      | 
|Diluted earnings per common share:                                                                                                                |      |                         |         |      |  |   |         |   |  |      |         |   |      |   |         |   |  |   |         |  
|Income from continuing operations applicable to common shareholders                                                                               |      | $                       | 0.96    |      |  | $ | 1.23    |   |  | $    | 1.22    |   |      | $ | 2.12    |   |  | $ | 1.28    |  
|Discontinued operations                                                                                                                           |      | $                       | 0.22    |      |  | $ | 0.04    |   |  | $    | 0.49    |   |      | $ | 0.39    |   |  | $ | 0.43    |  
|                                                                                                                                                  |      |                         |         |      |  |   |         |   |  |      |         |   |      |   |         |   |  |   |         |  
|Net income applicable to common shareholders  diluted                                                                                            |      | $                       | 1.18    |      |  | $ | 1.27    |   |  | $    | 1.71    |   |      | $ | 2.51    |   |  | $ | 1.71    |  
|                                                                                                                                                  |      |                         |         |      |  |   |         |   |  |      |         |   |      |   |         |   |  |   |         |  
|Weighted average number of common shares and common share equivalents outstanding  diluted                                                       |      |                         | 44,529  |      |  |   | 40,270  |   |  |      | 38,649  |   |      |   | 40,849  |   |  |   | 36,515  |  



21



---

##### Table of Contents

##### Index to Financial Statements

|                                                       |      |                                          |           |      |  |   |           |   |  |      |           |   |      |   |           |   |  |   |           |  
|------------------------------------------------------ | ---- | ---------------------------------------- | --------- | ---- |  | - | --------- | - |  | ---- | --------- | - | ---- | - | --------- | - |  | - | --------- | -
|Balance Sheet Data: (in
thousands)                     |      | As of or For the Year Ended December 31, |          
|                                                       | 2004 |                                          |           | 2003 |  |   | 2002      |   |  | 2001 |           |   | 2000 |  
|Operating real estate, before accumulated depreciation |      | $                                        | 2,130,364 |      |  | $ | 2,052,679 |   |  | $    | 1,932,028 |   |      | $ | 1,807,039 |   |  | $ | 1,869,694 |  
|Operating real estate, after accumulated depreciation  |      |                                          | 1,896,357 |      |  |   | 1,841,735 |   |  |      | 1,753,236 |   |      |   | 1,660,690 |   |  |   | 1,743,064 |  
|Cash and cash equivalents                              |      |                                          | 8,586     |      |  |   | 5,945     |   |  |      | 5,080     |   |      |   | 5,845     |   |  |   | 5,452     |  
|Total assets                                           |      |                                          | 2,333,539 |      |  |   | 2,199,093 |   |  |      | 2,122,289 |   |      |   | 2,030,593 |   |  |   | 2,117,875 |  
|Mortgages and notes payable                            |      |                                          | 1,191,911 |      |  |   | 1,029,035 |   |  |      | 1,011,027 |   |      |   | 907,734   |   |  |   | 1,007,800 |  
|Mandatorily redeemable preferred units                 |      |                                          |          |      |  |   | 10,000    |   |  |      |          |   |      |   |          |   |  |   |          |  
|Total liabilities                                      |      |                                          | 1,329,168 |      |  |   | 1,162,229 |   |  |      | 1,141,731 |   |      |   | 1,024,607 |   |  |   | 1,132,858 |  
|Minority interest                                      |      |                                          | 60,782    |      |  |   | 124,623   |   |  |      | 136,325   |   |      |   | 186,186   |   |  |   | 178,753   |  
|Shareholders equity                                   |      |                                          | 943,589   |      |  |   | 912,241   |   |  |      | 844,233   |   |      |   | 819,800   |   |  |   | 806,264   |  
|                                                       |      |                                          |           |      | 
|Other Data: (in
thousands)                             |      |                                          |           |      |  |   |           |   |  |      |           |   |      |   |          
|Cash flow from operations                              |      | $                                        | 158,249   |      |  | $ | 133,625   |   |  | $    | 160,611   |   |      | $ | 160,424   |   |  | $ | 161,961   |  
|Cash flow from investing                               |      |                                          | (79,004   | )    |  |   | (142,304  | ) |  |      | (160,505  | ) |      |   | (52,854   | ) |  |   | (173,211  | )
|Cash flow from financing                               |      |                                          | (76,604   | )    |  |   | 9,544     |   |  |      | (871      | ) |      |   | (107,177  | ) |  |   | 3,389     |  
|                                                       |      |                                          |           |      | 
|Distributions declared per common share                |      | $                                        | 2.240     |      |  | $ | 2.240     |   |  | $    | 2.215     |   |      | $ | 2.090     |   |  | $ | 1.895     |  
|Funds from operations(2)                               |      |                                          | 144,709   |      |  |   | 139,246   |   |  |      | 144,911   |   |      |   | 155,814   |   |  |   | 138,402   |  
|                                                       |      |                                          |           |      | 
|Property Data: (square feet in
thousands)              |      |                                          |           |      |  |   |           |   |  |      |           |   |      |   |          
|Number of properties                                   |      |                                          | 133       |      |  |   | 137       |   |  |      | 137       |   |      |   | 146       |   |  |   | 181       |  
|Total net rentable square feet(3)                      |      |                                          | 18,358    |      |  |   | 17,762    |   |  |      | 17,627    |   |      |   | 17,597    |   |  |   | 19,497    |  
|Leased%                                                |      |                                          | 88        | %    |  |   | 91        | % |  |      | 93        | % |      |   | 94        | % |  |   | 96        | %

---

|(1) | Represents limited partners interests in the operating partnership as well as limited partners interests in certain real estate partnerships.
|--- | -----------------------------------------------------------------------------------------------------------------------------------------------

|(2) | Funds from operations is a widely recognized measure of REIT operating performance. Funds from operations is a non-GAAP financial measure and, as defined by the
National Association of Real Estate Investment Trusts, means net income, computed in accordance with GAAP excluding extraordinary items, as defined by GAAP, and gains (or losses) from sales of property, plus depreciation and amortization on real
estate assets, and after adjustments for unconsolidated partnerships, joint ventures and subsidiaries. We believe that funds from operations is helpful to investors and our management as a measure of our operating performance because it excludes
depreciation and amortization, gains and losses from property dispositions, and extraordinary items, and, as a result, when compared year over year, reflects the impact on operations from trends in occupancy rates, rental rates, operating costs,
development activities, general and administrative expenses, and interest costs, providing perspective not immediately apparent from net income. In addition, our management believes that funds from operations provides useful information to the
investment community about our financial performance when compared to other REITs since funds from operations is generally recognized as the industry standard for reporting the operating performance of REITs. However, our funds from operations may
not be comparable to funds from operations reported by other REITs that do not define funds from operations exactly as we do. We believe that in order to facilitate a clear understanding of our operating results, funds from operations should be
examined in conjunction with net income as presented in our consolidated financial statements and notes thereto included elsewhere in this Form 10-K. We believe that net income is the most directly comparable GAAP financial measure to funds from
operations. Funds from operations does not represent cash generated from operating activities in accordance with GAAP and should not be considered as an alternative to net income as an indication of our performance or to cash flows as a measure of
liquidity or our ability to make distributions. Funds from operations does not reflect either depreciation and amortization costs or the level of capital expenditures and leasing costs necessary to maintain the operating performance of our
properties, which are significant economic costs that could materially impact our results of operations. The following is a reconciliation of net income to funds from operations:
|--- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



22



---

##### Table of Contents

##### Index to Financial Statements

|                                                                           |      |                         |         |      |  |   |         |   |  |      |         |   |      |   |         |   |  |   |         |  
|-------------------------------------------------------------------------- | ---- | ----------------------- | ------- | ---- |  | - | ------- | - |  | ---- | ------- | - | ---- | - | ------- | - |  | - | ------- | -
|Funds from operations (in
thousands)                                       |      | Year Ended December 31, |        
|                                                                           | 2004 |                         |         | 2003 |  |   | 2002    |   |  | 2001 |         |   | 2000 |  
|Net income                                                                 |      | $                       | 62,423  |      |  | $ | 59,417  |   |  | $    | 74,281  |   |      | $ | 102,466 |   |  | $ | 69,585  |  
|Adjustments:                                                               |      |                         |         |      |  |   |         |   |  |      |         |   |      |   |         |   |  |   |         |  
|Real estate depreciation and amortization(A)                               |      |                         | 95,429  |      |  |   | 79,972  |   |  |      | 73,368  |   |      |   | 64,190  |   |  |   | 63,328  |  
|Minority interest share of depreciation and amortization                   |      |                         | (4,682  | )    |  |   |        |   |  |      |        |   |      |   |        |   |  |   |        |  
|Real estate depreciation and amortization of unconsolidated joint ventures |      |                         | 2,985   |      |  |   | 2,960   |   |  |      | 3,103   |   |      |   | 3,550   |   |  |   | 2,816   |  
|Minority interests(B)                                                      |      |                         | 1,733   |      |  |   | 1,875   |   |  |      | 2,589   |   |      |   | 4,268   |   |  |   | 2,894   |  
|Gain on sale of real estate                                                |      |                         | (13,179 | )    |  |   | (4,978  | ) |  |      | (8,430  | ) |      |   | (18,660 | ) |  |   | (221    | )
|                                                                           |      |                         |         |      |  |   |         |   |  |      |         |   |      |   |         |   |  |   |         |  
|Funds from operations(C)(D)                                                |      | $                       | 144,709 |      |  | $ | 139,246 |   |  | $    | 144,911 |   |      | $ | 155,814 |   |  | $ | 138,402 |  
|                                                                           |      |                         |         |      |  |   |         |   |  |      |         |   |      |   |         |   |  |   |         |  

---

|(A) | Includes real estate depreciation and amortization included in continuing operations and real estate depreciation and amortization included in discontinued
operations.
|--- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(B) | Represents the minority interests applicable to the common unit holders of the operating partnership.
|--- | -----------------------------------------------------------------------------------------------------

|(C) | Funds from operations for the years ended December 31, 2001 and 2000 includes merger termination fees of $17.0 million and $4.1 million, respectively. The fees are
not considered extraordinary items under generally accepted accounting principles, and therefore have not been deducted from net income in deriving our funds from operations.
|--- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(D) | Impairment losses and debt defeasance related to real estate are not added back in our reconciliation of net income to funds from operations; therefore, for periods
in which impairment losses or debt defeasance are recognized, funds from operations is negatively impacted. We recognized impairment losses on real estate of $1.8 million and $2.9 million during the years ended December 31, 2003 and 2002,
respectively. We recognized impairment loss on a mortgage loan of $2.9 million for the year ended December 31, 2004. We recognized debt defeasance of $5.3 million during the year ended December 31, 2004. The impairment losses totaling $1.8 million
and $2.9 million for the years ended December 31, 2003 and 2002 respectively are included in the line item income from discontinued operations in our consolidated statements of income.
|--- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(3) | Total net rentable square feet represents 100% of our wholly-owned properties plus our pro rata share of our consolidated and unconsolidated joint venture
properties.
|--- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------



Item 7. Managements Discussion and Analysis of Financial Condition and Results of Operations



The following discussion and analysis of financial condition and results of operations should be read in conjunction with our Selected Financial Data and
our historical Consolidated Financial Statements and related notes thereto. Historical results set forth in our Selected Financial Data and Consolidated Financial Statements should not be taken as an indication of our future operations.



Overview



We are a self-administered and self-managed Maryland REIT. We acquire, own, manage, lease, develop and build primarily
office properties throughout the United States. We are self-administered in that we provide our own administrative services, such as accounting, tax and legal, internally through our own employees. We are self-managed in that we internally provide
all the management and maintenance services that our properties require through employees, such as, property managers, leasing professionals and engineers. We operate principally through our operating partnership, Prentiss Properties Acquisition
Partners, L.P. and its subsidiaries, and two management service companies, Prentiss Properties Resources, Inc. and its subsidiaries and Prentiss Properties Management, L.P.



23



---

##### Table of Contents

##### Index to Financial Statements

As of December 31, 2004, we owned interests in a diversified portfolio of 133 primarily suburban Class A
office and suburban industrial properties as follows:



|                      |  |                     |  |                             
|--------------------- |  | ------------------- |  | ----------------------------
|                      |  | Number of Buildings |  | Net Rentable Square Feet (1)
|                      |  |                     |  | (in millions)               
|Office properties     |  | 106                 |  | 17.5                        
|Industrial properties |  | 27                  |  | 2.2                         
|                      |  |                     |  |                             
|Total                 |  | 133                 |  | 19.7                        
|                      |  |                     |  |                             

---

|(1) | Includes 100% of the net rentable square feet of our wholly-owned, consolidated joint venture
and unconsolidated joint venture properties, which totaled 17.2 million, 989,000 and 1.6 million respectively. Our pro rata share of net rentable square feet totals 18.4 million and includes 504,000 and 669,000 from our consolidated and
unconsolidated joint venture properties, respectively.
|--- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



As an owner of real estate, the majority of our income and cash flow is derived from rental income received pursuant to tenant leases for space at our properties; and thus, our earnings would be negatively impacted by a deterioration of our
rental income. One or more factors could result in a deterioration of rental income including (1) our failure to renew or execute new leases as current leases expire, (2) our failure to renew or execute new leases with rental terms at or above the
terms of in-place leases, and (3) tenant defaults.



Our failure
to renew or execute new leases as current leases expire or to execute new leases with rental terms at or above the terms of in-place leases is dependent on factors such as (1) the local economic climate, which may be adversely impacted by business
layoffs or downsizing, industry slowdowns, changing demographics and other factors and (2) local real estate conditions, such as oversupply of office and industrial space or competition within the market.



Our industrys performance is generally predicated on a sustained
pattern of job growth. In 2004, while the overall United States economy began to demonstrate economic growth, there were few indications that the economy was creating jobs at a pace sufficient to generate significant increases in demand for our
office space. We continued to operate in a period of weak fundamentals, evidenced by relatively high vacancy and correspondingly lower rental rates.



As a result of the recent weak economic climate, the office real estate markets have been materially impacted by higher vacancy rates. In 2003, vacancy
rates appeared to peak in many of our markets and some positive net absorption of space started to occur. During 2004, all of our markets, with the exception of Downtown Chicago, experienced positive net absorption of space. In addition, the overall
vacancy rates are down as compared to 2003. Although there is a slight improvement in the economic climate, we do not expect any material improvement in the leasing conditions for 2005. In the face of challenging market conditions, we have followed
a disciplined approach to managing our operations. We are constantly reviewing our portfolio and the markets in which we operate to identify potential asset acquisitions, opportunities for development and where we believe significant value can be
found, asset dispositions.



The occupancy in our portfolio of
operating properties decreased to 88% at December 31, 2004 compared to 91% at December 31, 2003 and 93% at December 31, 2002. Market rental rates have declined in each of our markets from peak levels and there may be additional declines in 2005.
Rental rates on our office space that was re-leased in 2004 and 2003 decreased an average of 8% and 9%, respectively, in comparison to rates that were in effect under expiring leases.



Our organization consists of a corporate office located in Dallas, Texas and five regional offices each of which operates
under the guidance of a member of our senior management team. The following table presents regional revenues for the year ended December 31, 2004, and the markets in which our properties are located within each region. The first market represents
the location of each regional office.



24



---

##### Table of Contents

##### Index to Financial Statements

|                    |  |                |         |        |                                  
|------------------- |  | -------------- | ------- | ------ | ---------------------------------
|Region              |  | Revenues       |         | Market
|                    |  | (in thousands) |         |       
|Mid-Atlantic        |  | $              | 97,586  |        | Metropolitan Washington, DC      
|Midwest             |  |                | 60,114  |        | Chicago, Suburban Detroit        
|Southwest           |  |                | 130,831 |        | Dallas/Fort Worth, Austin, Denver
|Northern California |  |                | 39,485  |        | Oakland, Silicon Valley          
|Southern California |  |                | 40,474  |        | San Diego, Los Angeles           
|                    |  |                |         |        |                                  
|Total               |  | $              | 368,490 |        |                                  
|                    |  |                |         |        |                                  



In addition to the
$368.5 million of regional revenues, during the year ended December 31, 2004, we recognized $2.2 million of revenue consisting of reimbursements from employees for their share of health care related costs of $515,000, interest income of $523,000
representing the portion not allocated to our regions and the balance of $1.1 million relating primarily to income derived from services performed for third parties not allocated to our regions.



At December 31, 2004, our pro rata share of in-place leases totaled 16.2
million square feet, or 88% of the net rentable square feet of our properties. Our leases range in term from 1 month to 17 years with an average term of 5 to 7 years. The 16.2 million square feet of in-place leases expire as follows:



|           |  |                      |  |       |  
|---------- |  | -------------------- |  | ----- | -
|           |  | Square Feet Expiring |  |       |  
|           |  | (in thousands)       |  |       |  
|2005       |  | 1,503                |  | 9.3   | %
|2006       |  | 2,012                |  | 12.4  | %
|2007       |  | 2,599                |  | 16.1  | %
|2008       |  | 1,703                |  | 10.5  | %
|2009       |  | 2,262                |  | 14.0  | %
|Thereafter |  | 6,103                |  | 37.7  | %
|           |  |                      |  |       |  
|           |  | 16,182               |  | 100.0 | %
|           |  |                      |  |       |  



If one or more tenants
fail to pay their rent due to bankruptcy, weakened financial condition or otherwise, our income, cash flow and ability to make distributions would be negatively impacted. At any time, a tenant may seek the protection of the bankruptcy laws, which
could result in delays in rental payments or in the rejection and termination of such tenant leases.



2004 Real Estate Transactions



Joint Venture Arrangement



On January
22, 2004, Prentiss Office Investors, L.P. was established to acquire office properties in our core markets of Washington D.C./Northern Virginia, Chicago, Dallas/Ft. Worth, Northern California and San Diego/Orange County. The partnership was
initially wholly owned by the operating partnership and its affiliates and was seeded by the transfer of several recent acquisitions including, 2291 Wood Oak Drive a single office building containing approximately 228,000 net rentable square feet
located in Herndon, Virginia, Corporate Lakes III a single office building containing approximately 124,000 net rentable square feet located in Chicago, Illinois and seven office buildings containing approximately 370,000 net rentable square feet
located in Carlsbad, California.



25



---

##### Table of Contents

##### Index to Financial Statements

Pursuant to a joint venture agreement, effective February 1, 2004, Stichting Pensioenfonds ABP, a
Netherlands based pension fund and unrelated third party, acquired a 49% limited partnership interest in Prentiss Office Investors, L.P. for proceeds totaling $68.9 million. As a result of the transaction, we recorded a gain on sale of $1.2 million.
The joint venture is consolidated with and into the accounts of the operating partnership. Proceeds from the transaction were used to repay a portion of the outstanding borrowings under our revolving credit facility.



Acquisitions



During the year ended December 31, 2004, we acquired, from unrelated third parties, 8 office buildings
totaling approximately 2.3 million net rentable square feet as detailed below:



|                           |  |                 |  |                  |  |                      |  |                     |  |                                            |  |                                    |      
|-------------------------- |  | --------------- |  | ---------------- |  | -------------------- |  | ------------------- |  | ------------------------------------------ |  | ---------------------------------- | -----
|Acquired Properties        |  | Segment         |  | Market           |  | Month of Acquisition |  | Number of Buildings |  | Net Rentable Square Feet(1) (in thousands) |  | Acquisition Price(2) (in millions)
|Cityplace Center           |  | Southwest       |  | Dallas/Ft. Worth |  | April 2004           |  | 1                   |  | 1,296                                      |  | $                                  | 123.3
|The Bluffs(3)              |  | Southern Calif. |  | San Diego        |  | May 2004             |  | 1                   |  | 69                                         |  |                                    | 17.7 
|5500 Great America Parkway |  | Northern Calif. |  | Silicon Valley   |  | May 2004             |  | 3                   |  | 306                                        |  |                                    | 34.8 
|2101 Webster               |  | Northern Calif. |  | Oakland          |  | Oct. 2004            |  | 1                   |  | 459                                        |  |                                    | 65.7 
|Lakeside I & II(3)         |  | Midwest         |  | Chicago          |  | Oct. 2004            |  | 2                   |  | 198                                        |  |                                    | 32.6 
|                           |  |                 |  |                  |  |                      |  |                     |  |                                            |  |                                    |      
|                           |  |                 |  |                  |  |                      |  | 8                   |  | 2,328                                      |  | $                                  | 274.1
|                           |  |                 |  |                  |  |                      |  |                     |  |                                            |  |                                    |      

---

|(1) | Net rentable square feet defines the area of a property for which a tenant is required to pay
rent, which includes the actual rentable area plus a portion of the common areas of the property allocated to a tenant.
|--- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(2) | Acquisitions were funded with proceeds from our revolving credit facility, debt assumption,
property sales and proceeds generated from the sale of common shares.
|--- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------

|(3) | Acquisitions were acquired by Prentiss Office Investors, L.P., the joint venture described
above. The net rentable square feet and acquisition price is presented at 100%. Each partner contributed their pro rata share of the purchase price of each property to Prentiss Office Investors, L.P. prior to acquisition.
|--- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



On July 15, 2004, we acquired from an unrelated third party, approximately
7.7 acres of land in Del Mar, California for gross consideration of $15.1 million. The acquisition was funded with proceeds from our revolving credit facility. The land is unrelated to our development project which is also located in Del Mar,
California.



Dispositions



During the year ended December 31, 2004, we sold, to unrelated
third parties, 4 industrial buildings containing approximately 91,000 net rentable square feet and 8 office buildings containing approximately 1.2 million net rentable square feet as detailed below:



|                            |  |                 |  |            |  |                      |  |                     |  |                                         |  |                                 |      
|--------------------------- |  | --------------- |  | ---------- |  | -------------------- |  | ------------------- |  | --------------------------------------- |  | ------------------------------- | -----
|Properties Sold             |  | Segment         |  | Market     |  | Month of Disposition |  | Number of Buildings |  | Net Rentable Square Feet (in thousands) |  | Gross Proceeds(1) (in millions)
|Natomas Corporate Center    |  | Northern Calif. |  | Sacramento |  | May 2004             |  | 6                   |  | 566                                     |  | $                               | 80.7 
|Shadowridge Business Center |  | Southern Calif. |  | San Diego  |  | July 2004            |  | 4                   |  | 91                                      |  |                                 | 10.2 
|One Westchase Center        |  | Southwest       |  | Houston    |  | Aug. 2004            |  | 1                   |  | 466                                     |  |                                 | 44.2 
|1800 Sherman Avenue         |  | Midwest         |  | Chicago    |  | Nov. 2004            |  | 1                   |  | 136                                     |  |                                 | 18.2 
|                            |  |                 |  |            |  |                      |  |                     |  |                                         |  |                                 |      
|                            |  |                 |  |            |  |                      |  | 12                  |  | 1,259                                   |  | $                               | 153.3
|                            |  |                 |  |            |  |                      |  |                     |  |                                         |  |                                 |      

---

|(1) | Proceeds from property sales were used to repay a portion of the outstanding borrowings under
our revolving credit facility and to complete a defeasance of a mortgage loan collateralized by the Natomas Corporate Center properties.
|--- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



26



---

##### Table of Contents

##### Index to Financial Statements

Development



During the year ended December 31, 2004, we transitioned a parcel of land from land held for development to construction in progress. The construction,
which has an estimated total project cost of $48.1 million, includes a two building office project located in Del Mar, California and will contain approximately 158,000 net rentable square feet upon completion. The project which is currently 50%
pre-leased is owned by Prentiss/Collins Del Mar Heights, LLC, a joint venture, owned 70% by our operating partnership and its affiliates and 30% by Collins Corporate Center, LLC, an unrelated third party. The accounts of Prentiss/Collins Del Mar
Heights, LLC are consolidated with and into the accounts of our operating partnership. The December 31, 2004 carrying amount of this development project was $23.4 million.



Critical Accounting Policies and Estimates



Our discussion and analysis of financial condition and results of operations is based upon our consolidated financial statements. Our consolidated
financial statements include the accounts of Prentiss Properties Trust, our operating partnership and our other consolidated subsidiaries. The preparation of financial statements in conformity with accounting principles generally accepted in the
United States of America requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements and the reported
amounts of revenues and expenses for the reporting period. Actual results could differ from our estimates.



The significant accounting policies used in the preparation of our consolidated financial statements are fully described in Note (2) to our audited
consolidated financial statements for the year ended December 31, 2004, included elsewhere in this Form 10-K. However, certain of our significant accounting estimates are considered critical accounting estimates because the estimate requires our
management to make assumptions about matters that are highly uncertain at the time the estimate is made and different estimates that reasonably could have been used in the current period, or changes in the estimates that are reasonably likely to
occur from period to period, would have a material impact on our financial condition, changes in financial condition or results of operations. We consider our critical accounting policies and estimates to be those used in the determination of the
reported amounts and disclosure related to the following:



| | (1) | Impairment of long-lived assets and the long-lived assets to be disposed of;
| | --- | ----------------------------------------------------------------------------



| | (2) | Allowance for doubtful accounts;
| | --- | --------------------------------



| | (3) | Depreciable lives applied to real estate assets and improvements to real estate assets;
| | --- | ---------------------------------------------------------------------------------------



| | (4) | Initial recognition, measurement and allocation of the cost of real estate acquired; and
| | --- | ----------------------------------------------------------------------------------------



| | (5) | Fair value of derivative instruments.
| | --- | -------------------------------------



Impairment of long-lived assets and long-lived assets to be disposed of



Real estate, leasehold improvements and land holdings are classified as long-lived assets held for sale or long-lived assets
to be held and used. In accordance with Statement of Financial Accounting Standards No. 144, Accounting for the Impairment or Disposal of Long-Lived Assets, we record assets held for sale at the lower of the carrying amount or fair
value, less cost to sell. With respect to assets classified as held and used, we periodically review these assets to determine whether our carrying amount will be recovered. All of our long-lived assets were classified as held and used at December
31, 2004. Our operating real estate, which comprises the majority of our long-lived assets, had a carrying amount of $1.9 billion at December 31, 2004. A long-lived asset is considered impaired if its carrying amount exceeds the sum of the
undiscounted cash flows expected to result from the use and eventual disposition of the asset. Upon impairment, we would recognize an impairment loss to reduce the carrying value of the long-lived asset to our estimate of its fair value. Our
estimate of fair value and cash flows to be generated from our properties requires us to make assumptions related to future occupancy of our properties, future rental rates, tenant concessions, operating expenditures, property taxes, capital
improvements, the ability of our tenants to perform pursuant to their lease obligations, the holding period of our properties and the proceeds to be generated from the eventual sale of our properties. If one or more of our assumptions proves
incorrect or if our assumptions change, the recognition of an impairment loss on one or more properties may be necessary in the future.



27



---

##### Table of Contents

##### Index to Financial Statements

The recognition of an impairment loss would negatively impact earnings. The table below details impairment losses on real
estate properties recognized during the three years ended December 31, 2004.



|                           |  |                         |  |      |       |     |      |   |       |    
|-------------------------- |  | ----------------------- |  | ---- | ----- | --- | ---- | - | ----- | ---
|                           |  | Year Ended December 31, | 
|(in thousands)             |  | 2004                    |  | 2003 |       |     | 2002 |  
|Impairment loss recognized |  |                        |  | $    | 1,792 | (1) |      | $ | 2,855 | (1)

---

|(1) | Included in the line item income from discontinued operations in the accompanying
consolidated statements of income.
|--- | ----------------------------------------------------------------------------------------------------------------------



|Allowance | for doubtful accounts
|--------- | ---------------------



Accounts receivable are reduced by an allowance for amounts that we estimate to be uncollectible. Our receivable balance is comprised primarily of accrued
rental rate increases to be received over the life of in-place leases as well as rents and operating cost recoveries due from tenants. We regularly evaluate the adequacy of our allowance for doubtful accounts considering such factors as credit
quality of our tenants, delinquency of payment, historical trends and current economic conditions. At December 31, 2004, we had total receivables of $62.0 million and an allowance for doubtful accounts of $6.2 million, resulting in a net receivable
balance of $55.8 million. Of the $62.0 million in total receivables, $50.7 million represents accrued rental rate increases to be received over the life of in-place leases. It is our policy to reserve all outstanding receivables that are 90-days
past due along with a portion of the remaining receivable balance that we feel is uncollectible based on our evaluation of the outstanding receivable balance. In addition, we increase our allowance for doubtful accounts for accrued rental rate
increases, if we determine such future rent is uncollectible. Actual results may differ from these estimates under different assumptions or conditions. If our assumptions, regarding the collectibility of accounts receivable, prove incorrect, we may
experience write-offs in excess of our allowance for doubtful accounts which would negatively impact earnings. The table below presents the net increase/(decrease) to our allowance for doubtful accounts during the periods, amounts written-off as
uncollectible during the periods and our allowance for doubtful accounts at December 31, 2004, and 2003 and 2002.



|                                                       |  |                         |        |   |      |   |        |      |  |   |       |  
|------------------------------------------------------ |  | ----------------------- | ------ | - | ---- | - | ------ | ---- |  | - | ----- | -
|                                                       |  | Year Ended December 31, |       
|(in thousands)                                         |  | 2004                    |        |   | 2003 |   |        | 2002 | 
|(Decrease)/increase in allowance for doubtful accounts |  | $                       | (3,779 | ) |      | $ | 2,274  |      |  | $ | 4,626 |  
|                                                       |  |                         |        |   |      |   |        |      |  |   |       |  
|Amounts written off during the period                  |  |                         | (6,847 | ) |      |   | (1,289 | )    |  |   | (802  | )
|                                                       |  |                         |        |   |      |   |        |      |  |   |       |  
|Allowance for doubtful accounts at period end          |  | $                       | 6,207  |   |      | $ | 9,986  |      |  | $ | 7,712 |  
|                                                       |  |                         |        |   |      |   |        |      |  |   |       |  



During the year ended
December 31, 2002, our earnings were negatively impacted by a charge of $5.4 million resulting from our concern over the collectibility of certain tenant receivables. A significant portion of the charge related to our concern that accrued rental
rate increases would not be collectible. Our concern was due in part to the impending bankruptcy of several significant tenants (bankruptcy tenants) as well as a deterioration of credit with certain other tenants. During 2002, we wrote-off
approximately $197,000 and $605,000 of the receivables due from the bankruptcy tenants and other receivables, respectively.



During the year ended December 31, 2003, we recognized a charge to earnings of $3.6 million, a significant portion of which resulted from increased
receivables due from the bankruptcy tenants. During 2003, we wrote-off approximately $667,000 and $622,000 of the receivables due from the bankruptcy tenants and other receivables, respectively.



During 2004, our earnings were negatively impacted by a charge of $3.0
million. The charge consisted of a $2.9 million allowance established for a note receivable that we determined to be partially uncollectible and other collectibility concerns of $1.7 million, partially offset by a $1.6 million allowance reversal
resulting from the emergence from bankruptcy and recapitalization of one bankruptcy tenant. During 2004, we wrote-off approximately $1.5 million, $2.9 million and $2.4 million of the receivables due from the bankruptcy tenants, our note receivable
and other receivables, respectively.



28



---

##### Table of Contents

##### Index to Financial Statements

As a result of the significant write-offs taken during the year ended December 31, 2004, a large portion
of which related to the bankruptcy tenants and was allowed for in prior periods, accompanied by the allowance reversal attributable to the bankruptcy tenants emergence from bankruptcy, our allowance for doubtful accounts have decreased $3.8
million from December 31, 2003 to December 31, 2004.



Depreciable
lives applied to real estate assets and improvements to real estate assets



Depreciation on buildings and improvements is provided under the straight-line method over an estimated useful life of 30 to 40 years for office buildings and 25 to 30 years for industrial buildings. Significant
betterments made to our real estate assets are capitalized and depreciated over the estimated useful life of the betterment. If our estimate of useful lives proves to be materially incorrect, the depreciation and amortization expense that we
currently recognize would also prove to be materially incorrect. A change in our estimate of useful lives would therefore result in either an increase or decrease in depreciation and amortization expense and thus, a decrease or increase in earnings.
The table below presents real estate related depreciation and amortization expense, including real estate depreciation and amortization expense included in income from continuing operations as well as discontinued operations, for the three years
ended December 31, 2004.



|                                                                       |  |                         |        |      |   |        |  |   |       
|---------------------------------------------------------------------- |  | ----------------------- | ------ | ---- | - | ------ |  | - | ------
|                                                                       |  | Year Ended December 31,
|(in thousands)                                                         |  | 2004                    |        | 2003 |   | 2002  
|Real Estate depreciation and amortization from continuing operations   |  | $                       | 91,756 |      | $ | 72,199 |  | $ | 61,855
|Real Estate depreciation and amortization from discontinued operations |  | $                       | 3,673  |      | $ | 7,773  |  | $ | 11,513



Initial recognition,
measurement and allocation of the cost of real estate acquired



We allocate the purchase price of properties acquired to tangible assets consisting of land and building and improvements, and identified intangible assets and liabilities generally consisting of (i) above- and
below-market leases, (ii) in-place leases and (iii) tenant relationships. We allocate the purchase price to the assets acquired and liabilities assumed based on their relative fair values in accordance with Statement of Financial Accounting
Standards No. 141, Business Combinations. These fair values are derived as follows:



Amounts allocated to land are derived from (1) comparable sales of raw land, (2) floor area ratio (FAR) specifics of the land as compared to other
developed properties (average land cost per FAR) and (3) our other local market knowledge.



Amounts allocated to buildings and improvements are calculated and recorded as if the building was vacant upon purchase. We use estimated cash flow projections and apply discount and capitalization rates based on
market knowledge. Depreciation is computed using the straight-line method over the estimated life of 30 to 40 years for office buildings and 25 to 30 years for industrial buildings.



We record above-market and below-market in-place lease values for acquired properties based on the present value (using a
market interest rate which reflects the risks associated with the leases acquired) of the difference between (1) the contractual amounts to be paid pursuant to the in-place leases and (2) managements estimate of fair market lease rates for the
corresponding in-place leases, measured over a period equal to the remaining non-cancelable term of the lease for above-market leases and the initial term plus the term of the fixed rate renewal option, if any for below-market leases. We perform
this analysis on a lease (tenant) by lease (tenant) basis. The capitalized above-market lease values are amortized as a reduction to rental income over the remaining non-cancelable terms of the respective leases. The capitalized below-market lease
values are amortized as an increase to rental income over the initial term plus the term of the fixed rate renewal option, if any, of the respective leases.



Other intangible assets, in-place leases and tenant relationships, are calculated based on an evaluation of specific characteristics of each tenants
lease. Our estimates of fair value for other intangibles includes an estimate of carrying costs during the expected lease-up periods for the respective spaces considering current market conditions and the costs to execute similar leases. In
estimating the carrying costs that would have otherwise been incurred had the leases not been in place, we include such items as real estate taxes, insurance and other operating expenses as well as lost rental revenue during the expected lease-up
period based on current market conditions.



29



---

##### Table of Contents

##### Index to Financial Statements

Costs to execute similar leases include leasing commissions, legal and other related costs. The value of in-place leases
is amortized to expense over the remaining non-cancelable term of the respective leases. Should a tenant terminate its lease, the unamortized portion of the in-place lease value would be charged to expense in current period earnings.



Based on our estimates of the fair value of the components of each real
estate property acquired between January 1, 2003 and December 31, 2004, we allocated the purchase price as follows:



|                                            |  |                         |         |   |      |   |         |  
|------------------------------------------- |  | ----------------------- | ------- | - | ---- | - | ------- | -
|                                            |  | Year Ended December 31, |        
|(in thousands)                              |  | 2004                    |         |   | 2003 |  
|Land                                        |  | $                       | 46,597  |   |      | $ | 33,173  |  
|Buildings and improvements                  |  | $                       | 183,250 |   |      | $ | 107,506 |  
|Tenant Improvements and leasing commissions |  | $                       | 29,641  |   |      | $ | 28,159  |  
|Below market lease value                    |  | $                       | (7,122  | ) |      | $ | (833    | )
|Above market lease value                    |  | $                       | 2,342   |   |      | $ | 3,241   |  
|In-place lease value at market              |  | $                       | 21,099  |   |      | $ | 7,425   |  
|Above market debt                           |  | $                       | (1,651  | ) |      | $ |        |  



During the year ended
December 31, 2004, we acquired a parcel of land for gross consideration of $15.1 million, which is included as land held for development on our consolidated balance sheet.



Fair value of derivative instruments



In accordance with Statement of Financial Accounting Standards No. 133, Accounting for Derivative Instruments and
Hedging Activities, as amended and interpreted, beginning January 1, 2001, we record all derivatives on the balance sheet at fair value. The accounting for changes in the fair value of derivatives depends on the intended use of the derivative
and the resulting designation. Derivatives used to hedge the exposure to changes in the fair value of an asset, liability, or firm commitment attributable to a particular risk, such as interest rate risk, are considered fair value hedges.
Derivatives used to hedge the exposure to variability of expected future cash flows, or other types of forecasted transactions, are considered cash flow hedges.



For derivatives designated as fair value hedges, changes in the fair value of the derivative and the hedged item related to the hedged risk are
recognized in earnings. For derivatives designated as cash flow hedges, the effective portion of changes in the fair value of the derivative is initially reported in other comprehensive income and subsequently reclassified to earnings when the
hedged transaction affects earnings, and the ineffective portion of changes in the fair value of the derivative is recognized currently in earnings. We assess the effectiveness of each hedging relationship by comparing the changes in fair value or
cash flows of the derivative hedging instrument with the changes in fair value or cash flows of the designated hedged item or transaction. For derivatives not designated as hedges, changes in fair value are recognized in earnings.



Our objective in using derivatives is to add stability to interest expense
and to manage our exposure to interest rate movements. To accomplish this objective, we use interest rate swaps as part of our cash flow hedging strategy. Interest rate swaps designated as cash flow hedges involve the receipt of variable-rate
amounts in exchange for fixed-rate payments over the life of the agreements without the exchange of the underlying principal amount. During 2004, such derivatives were used to hedge the variable cash flows associated with a portion of our
variable-rate debt.



As of December 31, 2004, we did not have
any derivatives designated as fair value hedges. Additionally, we do not use derivatives for trading or speculative purposes, and currently, we do not have any derivatives that are not designated as hedges.



30



---

##### Table of Contents

##### Index to Financial Statements

To determine the fair value of our derivative instruments, we use a variety of methods and assumptions
that are based on market conditions and risks existing at each balance sheet date. For the majority of financial instruments including most derivatives, standard market conventions and techniques such as discounted cash flow analysis, option pricing
models, replacement cost, and termination cost are used to determine fair value. All methods of assessing fair value result in a general approximation of value, and such value may never actually be realized. Future cash inflows or outflows from our
derivative instruments depend upon future borrowing rates. If assumptions about future borrowing rates prove to be materially incorrect, the recorded value of these agreements could also prove to be materially incorrect. Because we use the
derivative instruments to hedge our exposure to variable interest rates, thus effectively fixing a portion of our variable interest rates, changes in future borrowing rates could result in our interest expense being either higher or lower than might
otherwise have been incurred on our variable-rate borrowings had the rates not been fixed. The table below presents the amount by which cash payments made under our interest rate swap agreements exceeded cash receipts from our agreements during the
three years ended December 31, 2004. The table also presents the estimated fair value of our in-place swap agreements as of December 31, 2004, 2003 and 2002.



|                                                      |  |                         |         |   |      |   |        |      |  |   |         |  
|----------------------------------------------------- |  | ----------------------- | ------- | - | ---- | - | ------ | ---- |  | - | ------- | -
|                                                      |  | Year Ended December 31, |        
|(in thousands)                                        |  | 2004                    |         |   | 2003 |   |        | 2002 | 
|Net cash paid under our interest rate swap agreements |  | $                       | (10,557 | ) |      | $ | (9,743 | )    |  | $ | (8,232  | )
|                                                      |  |                         |        
|Fair value of interest rate swaps                     |  | $                       | (1,046  | ) |      | $ | (8,074 | )    |  | $ | (16,776 | )



31



---

##### Table of Contents

##### Index to Financial Statements

Results of Operations



Comparison of the Year Ended December 31, 2004 to the Year Ended December 31, 2003



The table below presents our consolidated statements of income for the years ended December 31, 2004 and 2003:



|                                                                                                                                                                 |      |                         |         |      |  |   |         |  
|---------------------------------------------------------------------------------------------------------------------------------------------------------------- | ---- | ----------------------- | ------- | ---- |  | - | ------- | -
|Consolidated Statements of Income (in thousands)                                                                                                                 |      | Year Ended December 31, |        
|                                                                                                                                                                 | 2004 |                         |         | 2003 | 
|Revenues:                                                                                                                                                        |      |                         |         |      |  |   |         |  
|Rental income                                                                                                                                                    |      | $                       | 356,825 |      |  | $ | 314,718 |  
|Service business and other income                                                                                                                                |      |                         | 13,909  |      |  |   | 16,769  |  
|                                                                                                                                                                 |      |                         |         |      |  |   |         |  
|                                                                                                                                                                 |      |                         | 370,734 |      |  |   | 331,487 |  
|                                                                                                                                                                 |      |                         |         |      |  |   |         |  
|Operating expenses:                                                                                                                                              |      |                         |         |      |  |   |         |  
|Property operating and maintenance                                                                                                                               |      |                         | 91,681  |      |  |   | 80,583  |  
|Real estate taxes                                                                                                                                                |      |                         | 39,406  |      |  |   | 31,274  |  
|General and administrative and personnel costs                                                                                                                   |      |                         | 11,803  |      |  |   | 10,988  |  
|Expenses of service business                                                                                                                                     |      |                         | 9,998   |      |  |   | 10,513  |  
|Depreciation and amortization                                                                                                                                    |      |                         | 92,315  |      |  |   | 72,483  |  
|                                                                                                                                                                 |      |                         |         |      |  |   |         |  
|                                                                                                                                                                 |      |                         | 245,203 |      |  |   | 205,841 |  
|                                                                                                                                                                 |      |                         |         |      |  |   |         |  
|Other expenses:                                                                                                                                                  |      |                         |         |      |  |   |         |  
|Interest expense                                                                                                                                                 |      |                         | 68,037  |      |  |   | 67,232  |  
|Amortization of deferred financing costs                                                                                                                         |      |                         | 2,343   |      |  |   | 2,284   |  
|                                                                                                                                                                 |      |                         |         |      |  |   |         |  
|Income from continuing operations before equity in income of unconsolidated joint ventures, loss on investment in securities, impairment, and
minority interests |      |                         | 55,151  |      |  |   | 56,130  |  
|                                                                                                                                                                 |      |                        
|Equity in income of unconsolidated joint ventures                                                                                                                |      |                         | 2,429   |      |  |   | 2,555   |  
|Loss on investment in securities                                                                                                                                 |      |                         | (420    | )    |  |   |        |  
|Loss from impairment of mortgage loan                                                                                                                            |      |                         | (2,900  | )    |  |   |        |  
|Minority interests                                                                                                                                               |      |                         | (2,744  | )    |  |   | (10,227 | )
|                                                                                                                                                                 |      |                         |         |      |  |   |         |  
|Income from continuing operations                                                                                                                                |      |                         | 51,516  |      |  |   | 48,458  |  
|                                                                                                                                                                 |      |                        
|Discontinued operations:                                                                                                                                         |      |                         |         |      |  |   |         |  
|Income from discontinued operations                                                                                                                              |      |                         | 3,354   |      |  |   | 6,034   |  
|Gain/(loss) from disposition of discontinued operations                                                                                                          |      |                         | 11,957  |      |  |   | (4,457  | )
|Loss from debt defeasance related to sale of real estate                                                                                                         |      |                         | (5,316  | )    |  |   |        |  
|Minority interests related to discontinued operations                                                                                                            |      |                         | (310    | )    |  |   | (53     | )
|                                                                                                                                                                 |      |                         |         |      |  |   |         |  
|                                                                                                                                                                 |      |                         | 9,685   |      |  |   | 1,524   |  
|                                                                                                                                                                 |      |                        
|Income before gain on sale of land and an interest in a real estate partnership                                                                                  |      |                         | 61,201  |      |  |   | 49,982  |  
|Gain on sale of land and an interest in a real estate partnership                                                                                                |      |                         | 1,222   |      |  |   | 9,435   |  
|                                                                                                                                                                 |      |                         |         |      |  |   |         |  
|Net income                                                                                                                                                       |      | $                       | 62,423  |      |  | $ | 59,417  |  
|Preferred dividends                                                                                                                                              |      |                         | (10,052 | )    |  |   | (8,452  | )
|                                                                                                                                                                 |      |                         |         |      |  |   |         |  
|Net income applicable to common shareholders                                                                                                                     |      | $                       | 52,371  |      |  | $ | 50,965  |  
|                                                                                                                                                                 |      |                         |         |      |  |   |         |  



Included below is a
discussion of the significant events or transactions that have impacted our results of operations when comparing the year ended December 31, 2004 to the year ended December 31, 2003.



32



---

##### Table of Contents

##### Index to Financial Statements

Acquisition of Real Estate. Acquisitions are a key component of our external growth strategy. We
selectively pursue acquisitions in our core markets when long-term yields make acquisitions attractive. Between January 1, 2003 and December 31, 2004, we acquired nineteen office properties containing in the aggregate approximately 3.4 million net
rentable square feet as presented below:



|                                  |  |                 |  |                    |  |                      |  |                     |  |                                             |  |                                 |      
|--------------------------------- |  | --------------- |  | ------------------ |  | -------------------- |  | ------------------- |  | ------------------------------------------- |  | ------------------------------- | -----
|Acquired Properties               |  | Segment         |  | Market             |  | Month of Acquisition |  | Number of Buildings |  | Net Rentable Square Feet (1) (in thousands) |  | Acquisition Price (in millions)
|Park West C3                      |  | Southwest       |  | Dallas/Ft. Worth   |  | Feb. 2003            |  | 1                   |  | 339                                         |  | $                               | 28.1 
|410 Warrenville Road              |  | Midwest         |  | Chicago            |  | May 2003             |  | 1                   |  | 60                                          |  |                                 | 8.7  
|Corporate Lakes III(2)            |  | Midwest         |  | Chicago            |  | June 2003            |  | 1                   |  | 124                                         |  |                                 | 22.6 
|2291 Wood Oak Drive(2)            |  | Mid-Atlantic    |  | Metro. Wash., D.C. |  | Aug. 2003            |  | 1                   |  | 228                                         |  |                                 | 52.2 
|Camino West Corporate Park(2)     |  | Southern Calif. |  | San Diego          |  | Nov. 2003            |  | 1                   |  | 54                                          |  |                                 | 8.9  
|Carlsbad Airport Plaza(2)         |  | Southern Calif. |  | San Diego          |  | Nov. 2003            |  | 1                   |  | 62                                          |  |                                 | 10.5 
|La Place Court(2)                 |  | Southern Calif. |  | San Diego          |  | Nov. 2003            |  | 2                   |  | 81                                          |  |                                 | 13.6 
|Pacific Ridge Corporate Centre(2) |  | Southern Calif. |  | San Diego          |  | Nov. 2003            |  | 2                   |  | 121                                         |  |                                 | 23.9 
|Pacific View Plaza(2)             |  | Southern Calif. |  | San Diego          |  | Nov. 2003            |  | 1                   |  | 52                                          |  |                                 | 10.2 
|Cityplace Center                  |  | Southwest       |  | Dallas/Ft. Worth   |  | April 2004           |  | 1                   |  | 1,296                                       |  |                                 | 123.3
|The Bluffs(3)                     |  | Southern Calif. |  | San Diego          |  | May 2004             |  | 1                   |  | 69                                          |  |                                 | 17.7 
|5500 Great America Parkway        |  | Northern Calif. |  | Silicon Valley     |  | May 2004             |  | 3                   |  | 306                                         |  |                                 | 34.8 
|Lakeside Point I & II(3)          |  | Midwest         |  | Chicago            |  | Oct. 2004            |  | 2                   |  | 198                                         |  |                                 | 32.6 
|2101 Webster                      |  | Northern Calif. |  | Oakland            |  | Oct. 2004            |  | 1                   |  | 459                                         |  |                                 | 65.7 
|                                  |  |                 |  |                    |  |                      |  |                     |  |                                             |  |                                 |      
|                                  |  |                 |  |                    |  |                      |  | 19                  |  | 3,449                                       |  | $                               | 452.8
|                                  |  |                 |  |                    |  |                      |  |                     |  |                                             |  |                                 |      

---

|(1) | Net rentable square feet defines the area of a property for which a tenant is required to pay
rent, which includes the actual rentable area plus a portion of the common areas of the property allocated to a tenant.
|--- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(2) | Properties were acquired by the operating partnership and its affiliates and subsequently
transferred to our Prentiss Office Investors, L.P. joint venture on January 22, 2004.
|--- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(3) | Acquisitions were acquired by Prentiss Office Investors, L.P. The net rentable square feet
and acquisition price is presented at 100%. Each partner contributed their pro rata share of the purchase price of each property to Prentiss Office Investors, L.P. prior to acquisition.
|--- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



Leasing of Development Projects.Our results of operations, for the year ended
December 31, 2004, have increased due to an increase in occupancy at a development project located in our Mid-Atlantic region which includes approximately 182,000 net rentable square feet. The project was 100% leased at December 31, 2004 and 35%
rent paying for the year ended December 31, 2004, compared to 29% leased at December 31, 2003 and 29% rent paying for the year ended December 31, 2003.



Real Estate Dispositions. During the period January 1, 2003 through December 31, 2004, we disposed of four industrial properties containing 91,000 net rentable
square feet and nineteen office properties containing 2.2 million net rentable square feet. The industrial properties were sold on July 23, 2004. Two office properties, containing 339,000 net rentable square feet, within our Southwest region were
sold on June 26, 2003. Nine office properties containing 644,000 net rentable square feet were sold on July 24, 2003, representing our only real estate assets located within the Atlanta area, a market within our Mid-Atlantic region. Six office
properties containing 566,000 net rentable square feet were sold on May 20, 2004, representing our only real estate assets in the Sacramento area, a market within our Northern California region. On August 23, 2004, we sold our only remaining real
estate asset in the Houston, Texas area, a market within our Southwest region. The property contained 466,000 net rentable square feet. The remaining 136,000 net rentable square feet included the disposition on November 19, 2004 of an office
building in the Chicago area, a market within our Midwest region.



Other
Significant Real Estate Transactions.On January 22, 2004, Prentiss Office Investors, L.P. was established to acquire office properties in our core markets of Washington D.C./Northern Virginia, Chicago, Dallas/Ft. Worth, Northern California and
San Diego/Orange County. The partnership was initially wholly owned by the operating partnership and its affiliates and was seeded by the transfer of several recent acquisitions as highlighted in the table above.



33



---

##### Table of Contents

##### Index to Financial Statements

Pursuant to a joint venture agreement, effective February 1, 2004, Stichting Pensioenfonds ABP, a
Netherlands based pension fund and unrelated third party, acquired a 49% limited partnership interest in Prentiss Office Investors, L.P. for proceeds totaling $68.9 million. As a result of the transaction, we recorded a gain on sale of $1.2 million.
The joint venture is consolidated with and into the accounts of the operating partnership. Proceeds from the transaction were used to repay a portion of the outstanding borrowings under our revolving credit facility.



The following is a discussion of the material changes in our consolidated
statements of income and a discussion of the impact that the significant events or transactions, as described above, had on one or more line items of our consolidated statements of income when comparing the year ended December 31, 2004 to the year
ended December 31, 2003.



Rental Income. Rental income increased by
$42.1 million, or 13.4%. The real estate acquisitions and development properties coming on-line resulted in increases of $37.7 million and $311,000, respectively. Additionally, our other properties experienced a $4.1 million increase primarily due
to an increase in termination fee income of $4.7 million and an increase in operating cost recoveries of $1.3 million for the year ended December 31, 2004 compared to the year ended December 31, 2003. These increases were partially offset by a
decrease in rental income of $2.3 million relating primarily to decreased occupancy and rental rate declines for newly executed leases.



Service Business and OtherIincome. Service business and other income decreased $2.9 million, or 17.1%, primarily due to a decrease in interest income resulting
from the repayment of a note receivable on February 4, 2004 and the reduction of consulting fee income due to the completion of consulting contracts early in 2004.



Property Operating and Maintenance. Property operating and maintenance costs increased by $11.1 million, or 13.8%. The real estate
acquisitions and development properties coming on-line resulted in increases of $10.9 million and $137,000, respectively. Property operating and maintenance expenses related to our other properties increased by $100,000. Property operating and
maintenance expense at our other properties experienced increases due to increased utility cost and other operating expenses, offset by a decrease in bad debt expense.



Real Estate Taxes. Real estate taxes increased by $8.1 million, or 26.0%. The real estate acquisitions and development properties
coming on-line resulted in increases of $4.5 million and $85,000, respectively. Real estate taxes related to our other properties increased by $3.6 million. The increase was primarily due to refunds received during the year ended December 31, 2003.



Expenses of Service Business.Expenses of service business decreased by
$515,000, or 4.9%, primarily due to a decrease in income tax expense offset by an increase in compensation related expenses.



General and administrative and personnel costs.General and administrative and personnel costs increased by $815,000, or 7.4%, primarily due to an increase in
compensation related expenses, which resulted from an increase in amounts due participants related to our deferred compensation and share incentive plans.



Depreciation and Amortization. Depreciation and amortization increased by $19.8 million, or 27.4%. The real estate acquisitions and development properties coming
on-line resulted in increases of $15.0 million and $212,000, respectively. Other properties increased by $4.6 million which is attributable to the depreciation and amortization expense related to capital expenditures incurred at our properties
subsequent to acquisition.



Interest Expense. Interest expense increased
by $805,000, or 1.2%, primarily as a result of an increase in weighted average borrowings outstanding for the year ended December 31, 2004 compared to the year ended December 31, 2003. The increase was partially offset by a decrease in the weighted
average interest rate paid on outstanding borrowings from 6.61% in 2003 to 6.22% in 2004 and an increase in capitalized interest from $416,000 in 2003 to $659,000 in 2004.



Loss on Investment in Securities. Loss on investment in securities of $420,000 resulted from a loss recorded on an investment we made
in August 2000. We invested $423,000 in Narrowcast Communications, a provider of an electronic tenant information service known as Elevator News Network. On May 11, 2004, we received a letter notifying us that Narrowcast Communications was being
dissolved. Included with the letter was a check totaling $3,000 representing a partial return of our investment. As a result, during the second quarter of 2004, we recognized a loss of $420,000 representing our remaining investment in the entity.



34



---

##### Table of Contents

##### Index to Financial Statements

Loss on impairment of mortgage loan.Loss on impairment of mortgage loan of $2.9 million, relates to a $4.4
million note receivable associated with a real estate sales transaction completed in 2001. On December 22, 2004, we received correspondence from the borrower indicating an inability to fulfill their total obligation under the note. Due to the fact
that our note receivable is subordinate to a first mortgage totaling approximately $12.0 million, we initiated an evaluation of the underlying real estate. Our evaluation was to determine whether the fair value of the property, less cost to sell
would be sufficient to satisfy both the first mortgage and our note receivable. In our opinion, the fair value of the underlying real estate would not be sufficient to satisfy both the first mortgage and our note receivable and thus in the
preparation of our financial statements, we recognized a $2.9 million write-down of the note.



Minority Interests.Minority interests decreased $7.5 million, or 73.2%, primarily due to a decrease in the proportionate share of net income attributable to the Series E and Series B Cumulative Redeemable
Perpetual Preferred unitholders as a result of the repurchase of these units on February 4, 2004 and February 24, 2004, respectively.



Discontinued Operations. Discontinued operations increased by $8.2 million, primarily as a result of the gain from the sale of properties of $12.0 million for the
year ended December 31, 2004 compared to a loss on the sale of properties of $4.5 million for the year ended December 31, 2003, partially offset by a loss from debt defeasance of $5.3 million recognized during the year ended December 31, 2004.
Discontinued operations were also impacted by an impairment loss of $1.8 million recognized during the year ended December 31, 2003 and the timing of sale of the properties.



Gain on Sale of Landand Partnership Interest. Gain on sale of land and partnership interest decreased by $8.2 million, or
87.0%. During the year ended December 31, 2004, we sold an interest in a real estate partnership resulting in a gain of approximately $1.2 million. During the year ended December 31, 2003, we disposed of three land parcels resulting in a gain on
sale of $9.4 million.



35



---

##### Table of Contents

##### Index to Financial Statements

Comparison of the Year Ended December 31, 2003 to the Year Ended December 31, 2002



The table below presents our consolidated statements of income for the years
ended December 31, 2003 and 2002:



|                                                                                                                                                  |      |                         |         |      |  |   |         |  
|------------------------------------------------------------------------------------------------------------------------------------------------- | ---- | ----------------------- | ------- | ---- |  | - | ------- | -
|Consolidated Statements of Income (in thousands)                                                                                                  |      | Year Ended December 31, |        
|                                                                                                                                                  | 2003 |                         |         | 2002 | 
|Revenues:                                                                                                                                         |      |                         |         |      |  |   |         |  
|Rental income                                                                                                                                     |      | $                       | 314,718 |      |  | $ | 307,487 |  
|Service business and other income                                                                                                                 |      |                         | 16,769  |      |  |   | 4,386   |  
|                                                                                                                                                  |      |                         |         |      |  |   |         |  
|                                                                                                                                                  |      |                         | 331,487 |      |  |   | 311,873 |  
|                                                                                                                                                  |      |                         |         |      |  |   |         |  
|Operating expenses:                                                                                                                               |      |                         |         |      |  |   |         |  
|Property operating and maintenance                                                                                                                |      |                         | 80,583  |      |  |   | 75,235  |  
|Real estate taxes                                                                                                                                 |      |                         | 31,274  |      |  |   | 35,119  |  
|General and administrative and personnel costs                                                                                                    |      |                         | 10,988  |      |  |   | 10,361  |  
|Expenses of service business                                                                                                                      |      |                         | 10,513  |      |  |   |        |  
|Depreciation and amortization                                                                                                                     |      |                         | 72,483  |      |  |   | 61,944  |  
|                                                                                                                                                  |      |                         |         |      |  |   |         |  
|                                                                                                                                                  |      |                         | 205,841 |      |  |   | 182,659 |  
|                                                                                                                                                  |      |                         |         |      |  |   |         |  
|Other expenses:                                                                                                                                   |      |                         |         |      |  |   |         |  
|Interest expense                                                                                                                                  |      |                         | 67,232  |      |  |   | 64,468  |  
|Amortization of deferred financing costs                                                                                                          |      |                         | 2,284   |      |  |   | 1,832   |  
|                                                                                                                                                  |      |                         |         |      |  |   |         |  
|Income from continuing operations before equity in income of unconsolidated joint ventures and unconsolidated subsidiaries and minority
interests |      |                         | 56,130  |      |  |   | 62,914  |  
|                                                                                                                                                  |      |                        
|Equity in income of unconsolidated joint ventures and unconsolidated subsidiaries                                                                 |      |                         | 2,555   |      |  |   | 3,154   |  
|Minority interests                                                                                                                                |      |                         | (10,227 | )    |  |   | (10,450 | )
|                                                                                                                                                  |      |                         |         |      |  |   |         |  
|Incoming from continuing operations                                                                                                               |      |                         | 48,458  |      |  |   | 55,618  |  
|                                                                                                                                                  |      |                        
|Discontinued operations:                                                                                                                          |      |                         |         |      |  |   |         |  
|Income from discontinued operations                                                                                                               |      |                         | 6,034   |      |  |   | 10,966  |  
|(Loss)/gain from disposition of discontinued operations                                                                                           |      |                         | (4,457  | )    |  |   | 8,430   |  
|Minority interests related to discontinued operations                                                                                             |      |                         | (53     | )    |  |   | (733    | )
|                                                                                                                                                  |      |                         |         |      |  |   |         |  
|                                                                                                                                                  |      |                         | 1,524   |      |  |   | 18,663  |  
|                                                                                                                                                  |      |                        
|Income before gain on sale of land                                                                                                                |      |                         | 49,982  |      |  |   | 74,281  |  
|Gain on sale of land                                                                                                                              |      |                         | 9,435   |      |  |   |        |  
|                                                                                                                                                  |      |                         |         |      |  |   |         |  
|Net income                                                                                                                                        |      | $                       | 59,417  |      |  | $ | 74,281  |  
|Preferred dividends                                                                                                                               |      |                         | (8,452  | )    |  |   | (8,358  | )
|                                                                                                                                                  |      |                         |         |      |  |   |         |  
|Net income applicable to common shareholders                                                                                                      |      | $                       | 50,965  |      |  | $ | 65,923  |  
|                                                                                                                                                  |      |                         |         |      |  |   |         |  



Included below is a
discussion of the significant events or transactions that have impacted our results of operations when comparing the year ended December 31, 2003 to the year ended December 31, 2002.



Acquisition of Real Estate.Acquisitions are a key component of our external growth strategy. We selectively pursue
acquisitions in our core markets when long-term yields make acquisitions attractive. Prior to March 2002, we owned a 20% non-controlling interest in the joint venture owning the Burnett Plaza property, a 1.0 million net rentable square foot office
building located in our Southwest Region. Our 20% interest was accounted for using the equity method of accounting and thus, our share of the results of operations from the property were included in the line item equity in income of joint
ventures and unconsolidated subsidiaries on our consolidated statements of income. On March 7, 2002, we purchased from Burnett Plaza  VEF III, L.P., an affiliate of Lend Lease Real Estate Investments, its 80% interest in the joint
venture for a purchase price of approximately $51.2 million and the assumption of their pro rata share of joint venture debt. Subsequent to this purchase, the results of operations for the Burnett Plaza property are consolidated into the results of
operations of our operating partnership.



36



---

##### Table of Contents

##### Index to Financial Statements

In addition to the acquisition of the Burnett Plaza property, between January 1, 2002 and December 31,
2003, we acquired twelve wholly-owned office properties containing in the aggregate approximately 1.4 million net rentable square feet as presented below.



|                                  |  |                 |  |                    |  |                      |  |                     |  |                                            |  |                                 |      
|--------------------------------- |  | --------------- |  | ------------------ |  | -------------------- |  | ------------------- |  | ------------------------------------------ |  | ------------------------------- | -----
|Acquired Properties               |  | Segment         |  | Market             |  | Month of Acquisition |  | Number of Buildings |  | Net Rentable Square Feet(1) (in thousands) |  | Acquisition Price (in millions)
|12601 Fair Lakes Circle           |  | Mid-Atlantic    |  | Metro. Wash., D.C. |  | Nov. 2002            |  | 1                   |  | 264                                        |  | $                               | 55.1 
|Park West C3                      |  | Southwest       |  | Dallas/Ft. Worth   |  | Feb. 2003            |  | 1                   |  | 339                                        |  |                                 | 28.1 
|410 Warrenville Road              |  | Midwest         |  | Chicago            |  | May 2003             |  | 1                   |  | 60                                         |  |                                 | 8.7  
|Corporate Lakes III(2)            |  | Midwest         |  | Chicago            |  | June 2003            |  | 1                   |  | 124                                        |  |                                 | 22.6 
|2291 Wood Oak Drive(2)            |  | Mid-Atlantic    |  | Metro. Wash., D.C. |  | Aug. 2003            |  | 1                   |  | 228                                        |  |                                 | 52.2 
|Camino West Corporate Park(2)     |  | Southern Calif. |  | San Diego          |  | Nov. 2003            |  | 1                   |  | 54                                         |  |                                 | 8.9  
|Carlsbad Airport Plaza(2)         |  | Southern Calif. |  | San Diego          |  | Nov. 2003            |  | 1                   |  | 62                                         |  |                                 | 10.5 
|La Place Court(2)                 |  | Southern Calif. |  | San Diego          |  | Nov. 2003            |  | 2                   |  | 81                                         |  |                                 | 13.6 
|Pacific Ridge Corporate Centre(2) |  | Southern Calif. |  | San Diego          |  | Nov. 2003            |  | 2                   |  | 121                                        |  |                                 | 23.9 
|Pacific View Plaza(2)             |  | Southern Calif. |  | San Diego          |  | Nov. 2003            |  | 1                   |  | 52                                         |  |                                 | 10.2 
|                                  |  |                 |  |                    |  |                      |  |                     |  |                                            |  |                                 |      
|                                  |  |                 |  |                    |  |                      |  | 12                  |  | 1,385                                      |  | $                               | 233.8
|                                  |  |                 |  |                    |  |                      |  |                     |  |                                            |  |                                 |      

---

|(1) | Net rentable square feet defines the area of a property for which a tenant is required to pay
rent, which includes the actual rentable area plus a portion of the common areas of the property allocated to a tenant.
|--- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(2) | Properties were acquired by the operating partnership and its affiliates, and subsequently
transferred to our Prentiss Office Investors, L.P. joint venture on January 22, 2004.
|--- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



Leasing of Develpment Projects.Our results of operations, for the year ended December 31, 2003, have been bolstered by increased occupancy at three development projects. The projects include approximately
182,000 net rentable square feet in our Mid-Atlantic Region, 223,000 net rentable square feet in our Southwest Region and 40,000 net rentable square feet in our Southern California Region. The projects were approximately 71% leased and rent paying
at December 31, 2003.



Real Estate Dispositions. During the period
January 1, 2002 through December 31, 2003, we disposed of seven industrial properties containing 875,000 net rentable square feet and fourteen office properties containing 1.2 million net rentable square feet. The industrial properties were sold on
September 10, 2002 and included all of the industrial properties within our Mid-Atlantic Region. Three office properties containing 194,000 net rentable square feet were sold on October 17, 2002 and represented our only office holdings within the
Los Angeles area, a market within our Southern California Region. Two office properties, containing 339,000 net rentable square feet, within our Southwest region were sold on June 26, 2003. The remaining 644,000 net rentable square feet included the
disposition on July 24, 2003 of nine office properties representing our only properties within the Atlanta area, a market within our Mid-Atlantic region.



Other Significant Real Estate Transactions.On November 22, 1999, we acquired 123 North Wacker, a 540,000 net rentable square foot office property located in our
Midwest Region for a purchase price of approximately $87.3 million. The property was primarily leased to a single tenant whose intention was to vacate the property in September 2001 upon the expiration of the in-place lease. Our intention was to
convert and market the building for lease as a multi-tenant property. The property, which was vacated as intended incurred significant leasing activity during 2002 and 2003. The property was approximately 88% leased at December 31, 2003 compared to
81% leased at December 31, 2002.



The following is a discussion
of the material changes in our consolidated statements of income and a discussion of the impact that the significant events or transactions, as described above, had on one or more line items of our consolidated statements of income when comparing
the year ended December 31, 2003 to the year ended December 31, 2002.



37



---

##### Table of Contents

##### Index to Financial Statements

Rental Income. Rental income increased by $7.2 million, or 2.4%. The real estate acquisitions and development
properties coming on-line resulted in increases of $21.1 million and $2.3 million, respectively. The leasing of our 123 North Wacker property resulted in an increase of $2.5 million. The increases were offset by a decrease of $18.7 million from our
other properties relating primarily to occupancy and rental rate declines in our portfolio and a decrease in termination fee income recognized for the year ended December 31, 2003 compared to the year ended December 31, 2002.



Property Operating and Maintenance. Property operating and maintenance costs increased
by $5.3 million, or 7.1%. The real estate acquisitions and development properties coming on-line resulted in increases of $5.6 million and $1.4 million, respectively. The leasing of our 123 North Wacker property resulted in an increase of $383,000.
Property operating and maintenance expenses related to our other properties decreased by $2.0 million. The decrease in property operating and maintenance expenses at our other properties primarily due to the decrease from the year ended December 31,
2002 to the year ended December 31, 2003 of bad debt expenses recognized at our properties



Real Estate Taxes. Real estate taxes decreased by $3.8 million, or 10.9%. The real estate acquisitions and development properties coming on-line resulted in increases of $1.3 million and $59,000, respectively.
The increases were offset by decreases of $4.5 million and $757,000 from our other properties and our 123 North Wacker property, respectively. The decrease primarily resulted from real estate tax refunds received and lower estimates of current year
taxes resulting from lower property tax assessments across our portfolio.



Service Business and Other Income/Expenses of Service Business.Service business and other income and the expenses of service business increased as a result of the acquisition of the remaining interest in Prentiss Properties
Resources, Inc. and the resulting consolidation of the accounts with and into the accounts of the operating partnership. During the year ended December 31, 2002, our pro rata share of the results of operations of Prentiss Properties Resources, Inc.
were included in the line item equity in income of joint ventures and unconsolidated subsidiaries in our consolidated statement of income.



Depreciation and Amortization. Depreciation and amortization increased by $10.5 million, or 17.0%. The real estate acquisitions and development properties coming
on-line resulted in increases of $5.9 million and $2.0 million, respectively. The leasing of our 123 North Wacker property resulted in an increase of $1.1 million. Other properties increased by $1.5 million which is attributable to the depreciation
and amortization expense related to capital expenditures incurred at our properties subsequent to acquisition.



Interest Expense. Interest expense increased by $2.8 million, or 4.3%, primarily as a result of an increase in weighted average borrowings outstanding for the year ended December 31, 2003 compared to the year
ended December 31, 2002 accompanied by a decrease in capitalized interest from $3.4 million in 2002 to $416,000 in 2003. The increase was partially offset by a decrease in the weighted average interest rate paid on outstanding borrowings from 6.78%
in 2002 to 6.61% in 2003.



Discontinued Operations. Discontinued
operations decreased by $17.1, primarily as a result of the loss from the sale of properties of $4.5 million for the year ended December 31, 2003 compared to a gain on the sale of properties of $8.4 million for the year ended December 31, 2002. Also
contributing to the decrease is the shortened period of time the assets were in our portfolio during 2003 versus 2002.



Gain on Sale of Land. During the year ended December 31, 2003, we disposed of three parcels of land resulting in a gain on sale of $9.4 million.



Liquidity and Capital Resources



Cash and cash equivalents were $8.6 million and $5.9 million at December 31,
2004 and December 31, 2003, respectively. The increase in cash and cash equivalents is a result of net cash flows provided by operating activities exceeding net cash used in investing and financing activities.



38



---

##### Table of Contents

##### Index to Financial Statements

Cash flows provided by operating activities totaled $158.2 million for the year ended December 31, 2004
compared to $133.6 million for the year ended December 31, 2003. The change in cash flows from operating activities is attributable to (1) the factors discussed in our analysis of results of operations for the year ended December 31, 2004 compared
to December 31, 2003 and (2) the timing of receipt of revenues and payment of expenses which is evidenced by cash outflows of only $4.1 million in 2004 compared to $21.6 million in 2003 related to the changes in assets and liabilities.



Net cash used in investing activities totaled $79.0 million for the year
ended December 31, 2004 compared to $142.3 million for the year ended December 31, 2003. The decrease in net cash used in investing activities of $63.3 million is due primarily to an increase in cash generated from the sale of real estate of $65.9
million, an increase of $69.3 million in proceeds from the sale of a joint venture interest in a real estate partnership, an increase in cash generated from the repayment of notes receivable of $11.5 million, partially offset by an increase of $59.7
million in cash used to purchase real estate, an increase of $19.2 million used for capital expenditures related to in service properties and an increase of $4.3 million in cash used in the development and redevelopment of real estate.



Net cash used in financing activities totaled $76.6 million for the year
ended December 31, 2004 compared to net cash provided of $9.5 million for the year ended December 31, 2003. The increase in net cash used in financing activities of $86.1 million is due primarily to an increase of $105.0 million of cash used for the
redemption of preferred units, an increase of $64.5 million in net cash used for distributions, a decrease in cash generated from the sale of common shares of $34.3 million, an increase in cash used to pay debt defeasance cost on the extinguishment
of debt of $5.3 million, partially offset by an increase in net borrowings of $97.2 million and an increase in capital contributions from consolidated joint ventures of $26.9 million.



Net cash flow from operations represents the primary source of liquidity to fund distributions, debt service, capital
improvements and non-revenue enhancing tenant improvements. We expect that our revolving credit facility will provide for funding of working capital and revenue enhancing tenant improvements, unanticipated cash needs as well as acquisitions and
development costs. Our principal short-term liquidity needs are to fund normal recurring expenses, debt service requirements and the minimum distributions required to maintain our REIT qualification under the Internal Revenue Code.



Our net cash flow from operations is generally derived from rental revenues
and operating expense reimbursements from tenants and, to a limited extent, from fees generated by our office and industrial real estate management service business. Our net cash flow from operations is therefore dependent upon the occupancy level
of our properties, the collectibility of rent from our tenants, the level of operating and other expenses of our properties, and other factors. Material changes in these factors may adversely affect our net cash flow from operations. Such changes,
in turn, would adversely affect our ability to fund distributions, debt service, capital improvements and non-revenue enhancing tenant improvements. In addition, a material adverse change in our net cash flow from operations may affect the financial
performance covenants under our revolving credit facility. If we fail to meet any of our financial performance covenants, our revolving credit facility may become unavailable to us, or the interest charged on the revolving credit facility may
increase. Either of these circumstances could adversely affect our ability to fund working capital and revenue enhancing tenant improvements, unanticipated cash needs, acquisitions and development costs.



In order to qualify as a REIT for federal income tax purposes, we must
distribute at least 90% of our taxable income, excluding capital gains. We expect to make distributions to our shareholders primarily based on our cash flow from operations distributed by our operating partnership. We anticipate that our short-term
liquidity needs will be fully funded from cash flows provided by operating activities and, when necessary to fund shortfalls resulting from the timing of collections of accounts receivable in the ordinary course of business, from our revolving
credit facility. In the event that our cash flow needs exceed cash flows provided by operating activities, we may be forced to incur additional debt or sell real estate properties to fund such cash flow needs.



We expect to meet our long-term liquidity requirements for the funding of
activities, such as development, real estate acquisitions, scheduled debt maturities, major renovations, expansions and other revenue enhancing capital improvements through long-term secured and unsecured indebtedness and through the issuance of
additional debt and equity securities. We also intend to use proceeds from our revolving credit facility to fund real estate acquisitions, development, redevelopment, expansions and capital improvements on an interim basis.



39



---

##### Table of Contents

##### Index to Financial Statements

Debt Financing



As of December 31, 2004, we had outstanding total consolidated indebtedness of approximately $1.2 billion. The amount of indebtedness that we may incur,
and the policies with respect thereto, are not limited by our declaration of trust and bylaws, and are solely within the discretion of our board of trustees, limited only by various financial covenants in our credit agreements. It is our general
policy to limit combined indebtedness including our pro rata share of consolidated and unconsolidated joint venture debt so that, at the time such debt is incurred, it does not exceed 50% of our total market capitalization. As of December 31, 2004,
we had outstanding total indebtedness, including our pro rata share of consolidated and unconsolidated joint venture debt, of approximately $1.2 billion, or approximately 38.8% of total market capitalization based on a common share price of $38.20
per common share. Our credit agreements limit total indebtedness to 55% of total assets and require an interest coverage ratio of at least 2 to 1.



On February 19, 2004, we renewed our $300 million revolving credit facility, including an extension of the maturity date from May 23, 2005 to February 19,
2007. The interest rate on the facility will fluctuate based on our overall leverage with a range between 30-day LIBOR plus 112.5 basis points and 30-day LIBOR plus 160 basis points. The pricing on the renewed facility represents a 12.5 basis point
to 15.0 basis point pricing reduction across the leverage grid. The facility was substantially oversubscribed with initial commitments of $370 million. Banking participants in the revolving credit facility include Bank One as Administrative Agent;
Bank of America as Syndication Agent; Commerzbank, EuroHypo and Societe General as Documentation Agents; PNC Bank, Sun Trust and Union Bank of California as Co-Agents; and Comerica Bank, KeyBank, Mellon Bank, and SouthTrust Bank as Lenders. On June
25, 2004, we exercised an accordion feature within our revolving credit facility expanding the facilitys overall borrowing capacity from $300 million to $375 million. Other terms of the facility remain unchanged.



On March 2, 2004, we negotiated an interest rate reduction on our $75.0
million unsecured term loan with Commerzbank AG. The interest rate which is based on overall leverage was reduced from 30-day LIBOR plus 125 to 175 basis points to 30-day LIBOR plus 112.5 to 160 basis points. In addition, the term loan which had an
original maturity date of March 15, 2006 was extended to March 15, 2009.



On May 20, 2004, in connection with a real estate sales transaction, we exercised our right to complete a voluntary defeasance of the mortgage loan collateralized by the sold properties. Pursuant to the defeasance, we
transferred the mortgage loan with an outstanding principal balance of $35.8 million to an unrelated successor entity. The buyer of the properties transferred proceeds totaling $41.1 million representing the proceeds necessary to acquire U.S.
treasuries sufficient to cover the debt service of the mortgage loan from the defeasance date through maturity of the loan. We recognized a loss from debt defeasance of $5.3 million during the period which we included in discontinued operations. The
amount used to repay the mortgage loan was funded with proceeds received from the properties sold.



On July 23, 2004, Prentiss Office Investors, L.P., completed a five-year, $10.7 million loan collateralized by a 69,000 net rentable square foot office
building in San Diego, California. The loan, which is interest only until maturity, has an interest rate that fluctuates between 130 and 150 basis points over 30-day LIBOR depending on the propertys occupancy, and matures July 23, 2009.
Proceeds from the loan were used to fund a pro rata capital distribution to the joint venture partners based on their ownership interest in Prentiss Office Investors, L.P. Our operating partnership used proceeds received from the capital
distribution to repay a portion of the outstanding borrowings under our revolving credit facility.



On July 29, 2004, Prentiss Office Investors, L.P, completed a five-year $85.0 million loan, collateralized by nine office buildings owned by various
subsidiaries of Prentiss Office Investors, L.P. located in Illinois, California and Virginia. The interest rate on the loan is 85 basis points over 30-day LIBOR and the monthly payments are interest only, with the principal of $85.0 million payable
at its maturity on August 1, 2009. Proceeds from the loan were used to fund a pro rata capital distribution to the joint venture partners based on their ownership interest in Prentiss Office Investors, L.P. Our operating partnership used proceeds
received from the capital distribution to repay a portion of the outstanding borrowings under our revolving credit facility.



40



---

##### Table of Contents

##### Index to Financial Statements

On August 16, 2004, Prentiss/Collins Del Mar Heights, LLC, completed a three-year, $34.0 million
construction loan with two one-year extension options to fund a portion of its 158,000 net rentable square foot office development project in Del Mar, California. Construction of the development project commenced during the second quarter of 2004.
The loan which has an interest rate of 140 basis points over 30-day LIBOR matures September 1, 2007. The interest rate will drop 10 basis points if certain economic and occupancy targets are achieved. Borrowings under the construction loan, which
totaled $8.9 million at December 31, 2004, were used to fund a portion of the development cost incurred to date.



On October 1, 2004, a $33.2 million, 6.92% fixed rate borrowing collateralized by a building located in Dallas, Texas was open for repayment without
penalty. We repaid the outstanding balance using proceeds from our revolving credit facility.



On October 8, 2004, in connection with a property acquisition, we assumed a $46.0 million, 8.22% amortizing mortgage loan with a maturity date of November 1, 2005. We recorded the debt at $47.7 million representing
our estimate of the fair market value of the debt on the date of acquisition. The fair value of the debt was calculated using an effective interest rate of 3.7% which represents our estimate of a market interest rate that we could have achieved on a
1-year collateralized mortgage loan on the date of acquisition.



On December 21, 2004, Prentiss Office Investors, L.P, completed a five-year $20.0 million loan, collateralized by two office buildings located in Waukegan, Illinois. The interest rate on the loan is 110 basis points over 30-day LIBOR and
the monthly payments are interest only, with the principal of $20.0 million payable at its maturity on December 1, 2009. Proceeds from the loan were used to fund a pro rata capital distribution to the joint venture partners based on their ownership
interest in Prentiss Office Investors, L.P. Our operating partnership used proceeds received from the capital distribution to repay a portion of the outstanding borrowings under our revolving credit facility.



During the period, we repaid approximately $40.4 million of our $70.4 million
collateralized term loan scheduled to mature on September 30, 2004. The remaining $30.0 million was extended for a period of three years to mature on September 30, 2007 at 30-day LIBOR plus 115 basis points. The loan was previously collateralized by
four properties including Willow Oaks I & II, 8521 Leesburg Pike, and the IBM Call Center. The amendment released the Willow Oaks properties from the collateral pool.



41



---

##### Table of Contents

##### Index to Financial Statements

The following table sets forth our mortgages and notes payable, including our unconsolidated joint
venture debt, as of December 31, 2004.



|                                               |  |                        |           |              |       |               |                |          |                   
|---------------------------------------------- |  | ---------------------- | --------- | ------------ | ----- | ------------- | -------------- | -------- | ------------------
|Borrower/Description                           |  | CurrentBalance (000s) |           | Amortization |       | Interest Rate |                | Maturity
|Consolidated Entities                          |  |                        |           |              |       |               |                |          |                   
|Burnett Plaza Associates                       |  |                        |           |              |       |               |                |          |                   
|Burnett Plaza                                  |  | $                      | 66,000    |              | None  |               | LIBOR+1.500%   |          | July 9, 2005      
|PL Properties Associates, L.P.                 |  |                        |           |              |       |               |                |          |                   
|Park West C2                                   |  |                        | 32,926    |              | 30 yr |               | 6.63%          |          | November 10, 2010 
|Prentiss Properties Acquisition Partners, L.P. |  |                        |           |              |       |               |                |          |                   
|2101 Webster                                   |  |                        | 47,039    |              | None  |               | 3.70%          |          | November 1, 2005  
|Highland Court                                 |  |                        | 4,354     |              | 25 yr |               | 7.27%          |          | April 1, 2006     
|Plaza I & II                                   |  |                        | 6,861     |              | 18 yr |               | 7.75%          |          | January 1, 2007   
|Revolving Credit Facility                      |  |                        | 217,500   |              | None  |               | LIBOR + 1.250% |          | February 19, 2007 
|Collateralized Term Loan(1)                    |  |                        | 30,000    |              | None  |               | LIBOR + 1.150% |          | September 30, 2007
|Unsecured Term Loan  EuroHypo I               |  |                        | 100,000   |              | None  |               | LIBOR + 1.250% |          | May 22, 2008      
|Unsecured Term Loan  Commerz                  |  |                        | 75,000    |              | None  |               | LIBOR + 1.250% |          | March 15, 2009    
|7101 Wisconsin Avenue                          |  |                        | 20,095    |              | 30 yr |               | 7.25%          |          | April 1, 2009     
|Unsecured Term Loan  EuroHypo II              |  |                        | 13,760    |              | 30 yr |               | 7.46%          |          | July 15, 2009     
|The Ordway                                     |  |                        | 47,425    |              | 30 yr |               | 7.95%          |          | August 1, 2010    
|World Savings Center                           |  |                        | 28,202    |              | 30 yr |               | 7.91%          |          | November 1, 2010  
|One OHare Centre                              |  |                        | 39,112    |              | 30 yr |               | 6.80%          |          | January 10, 2011  
|3130 Fairview Park Drive                       |  |                        | 21,926    |              | 30 yr |               | 7.00%          |          | April 1, 2011     
|Research Office Center I-III                   |  |                        | 43,419    |              | 28 yr |               | 7.64%          |          | October 1, 2011   
|Bannockburn Centre                             |  |                        | 25,838    |              | 30 yr |               | 8.05%          |          | June 1, 2012      
|Del Mar Loan                                   |  |                        | 43,375    |              | 30 yr |               | 7.41%          |          | June 1, 2013      
|Prentiss Properties Corporetum, L.P.           |  |                        |           |              |       |               |                |          |                   
|Corporetum Office Campus                       |  |                        | 24,350    |              | 30 yr |               | 7.02%          |          | February 1, 2009  
|Prentiss Properties Real Estate Fund I, L.P.   |  |                        |           |              |       |               |                |          |                   
|PPREFI Portfolio Loan(2)                       |  |                        | 180,100   |              | None  |               | 7.58%          |          | February 26, 2007 
|Prentiss Office Investors, L.P.(3)             |  |                        |           |              |       |               |                |          |                   
|The Bluffs                                     |  |                        | 10,700    |              | None  |               | LIBOR + 1.300% |          | July 23, 2009     
|Collateralized Term Loan  Mass Mutual(4)      |  |                        | 85,000    |              | None  |               | LIBOR + 0.850% |          | August 1, 2009    
|Lakeside Point I & II                          |  |                        | 20,000    |              | None  |               | LIBOR + 1.100% |          | December 1, 2009  
|Prentiss/Collins Del Mar Heights, LLC(5)       |  |                        |           |              |       |               |                |          |                   
|High Bluff Ridge Construction Loan             |  |                        | 8,929     |              | None  |               | LIBOR + 1.400% |          | September 1, 2007 
|                                               |  |                        |           |              |       |               |                |          |                   
|Total Consolidated Outstanding Debt            |  | $                      | 1,191,911 |              |       |               |                |          |                   
|                                               |  |                        |           |              |       |               |                |          |                   
|Unconsolidated Entities                        |  |                        |           |              |       |               |                |          |                   
|Broadmoor Austin Associates                    |  |                        |           |              |       |               |                |          |                   
|Broadmoor Austin(6)                            |  | $                      | 131,979   |              | 16 yr |               | 7.04%          |          | April 10, 2011    
|Tysons International Partners(7)               |  |                        |           |              |       |               |                |          |                   
|1676 International Drive                       |  |                        | 43,530    |              | 28 yr |               | 7.68%          |          | August 30, 2010   
|8260 Greensboro                                |  |                        | 15,583    |              | 28 yr |               | 7.83%          |          | August 30, 2010   
|                                               |  |                        |           |              |       |               |                |          |                   
|Total Unconsolidated Outstanding Debt          |  | $                      | 191,092   |              |       |               |                |          |                   
|                                               |  |                        |           |              |       |               |                |          |                   
|Total Debt                                     |  | $                      | 1,383,003 |              |       |               |                |          |                   
|                                               |  |                        |           |              |       |               |                |          |                   

|
|



42



---

##### Table of Contents

##### Index to Financial Statements

|(1) | The Term Loan is collateralized by the following two properties: 8521 Leesburg Pike and the IBM Call Center.
|--- | ------------------------------------------------------------------------------------------------------------

|(2) | The PPREFI Portfolio Loan is collateralized by the following 36 properties: the Los Angeles industrial properties (18 properties), the Chicago industrial properties
(four properties), the Cottonwood Office Center (three properties), Park West E1 and E2 (two properties), One Northwestern Plaza, 3141 Fairview Park Drive, 13825 Sunrise Valley Drive, OHare Plaza II, 1717 Deerfield Road, 2411 Dulles Corner
Road, 4401 Fair Lakes Court, the WestPoint Office Building and the PacifiCare Building.
|--- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(3) | Our operating partnership and its affiliates own a 51% interest in Prentiss Office Investors, L.P. The accounts of Prentiss Office Investors, L.P. are consolidated
with and into the accounts of the operating partnership. The amounts shown reflect 100% of the debt balance.
|--- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(4) | The Term Loan is collateralized by the following 9 properties: Camino West Corporate Park, Carlsbad Airport Plaza, La Place Court (2 properties), Pacific Ridge
Corporate Centre (2 properties), Pacific View Plaza, Corporate Lakes III, and 2291 Wood Oak Drive.
|--- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(5) | Our operating partnership and its affiliates own a 70% interest in Prentiss/Collins Del Mar Heights, LLC. The accounts of Prentiss/Collins Del Mar Heights, LLC are
consolidated with and into the accounts of the operating partnership. The amount shown reflects 100% of the debt balance.
|--- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(6) | We own a 50% non-controlling interest in the entity that owns the Broadmoor Austin properties, which interest is accounted for using the equity method of accounting.
The amount shown reflects 100% of the non-recourse mortgage indebtedness collateralized by the properties.
|--- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(7) | We own a 25% non-controlling interest in the entity that owns the 1676 International Drive and 8260 Greensboro properties, which interest is accounted for using the
equity method of accounting. The amount shown reflects 100% of the non-recourse mortgage indebtedness collateralized by the properties.
|--- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



The majority of our fixed rate secured debt contains prepayment provisions based on the greater of a yield maintenance penalty or 1.0% of the outstanding
loan amount. The yield maintenance penalty essentially compensates the lender for the difference between the fixed rate under the loan and the yield that the lender would receive if the lender reinvested the prepaid loan balance in U.S. Treasury
Securities with a similar maturity as the loan.



Under our loan
agreements, we are required to satisfy various affirmative and negative covenants, including limitations on total indebtedness, total collateralized indebtedness and cash distributions, as well as obligations to maintain certain minimum tangible net
worth and certain minimum interest coverage ratios. Our credit agreements limit total indebtedness to 55% of total assets and require a debt service coverage ratio of at least 2 to 1. Our credit agreements provide for a 30-day period to cure a
default caused by our failure to punctually and properly perform, observe and comply with the covenants contained therein. The agreements also provide for an additional 75-day period if such failure is not capable of being cured within 30-days and
we are diligently pursuing the cure thereof. We were in compliance with these covenants at December 31, 2004.



Hedging Activities



To manage interest rate risk, we may employ options, forwards, interest rate swaps, caps and floors or a combination thereof depending on the underlying interest rate exposure. We undertake a variety of borrowings: from revolving credit
facilities, to medium- and long-term financings. To manage overall interest rate exposure, we use interest rate instruments, typically interest rate swaps, to convert a portion of our variable rate debt to fixed rate debt. Interest rate
differentials that arise under these swap contracts are recognized as interest expense over the life of the contracts.



We may employ forwards or purchased options to hedge qualifying anticipated transactions. Gains and losses are deferred and recognized in net income in
the same period that the anticipated transaction occurs, expires or is otherwise terminated.



43



---

##### Table of Contents

##### Index to Financial Statements

Beginning on the effective date, each swap effectively locks in our cost of funds at the swap rate paid
(before the spread over LIBOR) on variable rate borrowings in amounts equal to the respective notional amounts of the swap agreement.



The following table summarizes the notional amounts and fair values of our derivative financial instruments outstanding at December 31, 2004 and
highlights those swap agreements executed during the year ended December 31, 2004. The notional amount provides an indication of the extent of our involvement in these instruments as of the balance sheet date, but does not represent exposure to
credit, interest rate or market risks.



|                     |  |                        |  |                                                    |  |                |  |                |        |  
|-------------------- |  | ---------------------- |  | -------------------------------------------------- |  | -------------- |  | -------------- | ------ | -
|Notional Amount      |  | Swap Rate Paid (Fixed) |  | Swap Rate Received (Variable) at December 31, 2004 |  | Swap Maturity  |  | Fair Value     |       
|                     |  |                        |  |                                                    |  |                |  | (in thousands) |       
|$ 25.0 million       |  | 4.345%                 |  | 2.400%                                             |  | July 2005      |  | $              | (212   | )
|$ 15.0 million       |  | 4.345%                 |  | 2.400%                                             |  | July 2005      |  |                | (127   | )
|$ 20.0 million       |  | 5.985%                 |  | 2.400%                                             |  | March 2006     |  |                | (676   | )
|$ 30.0 million       |  | 5.990%                 |  | 2.400%                                             |  | March 2006     |  |                | (1,015 | )
|$ 50.0 million       |  | 2.270%                 |  | 2.400%                                             |  | August 2007    |  |                | 1,500  |  
|$ 25.0 million       |  | 2.277%                 |  | 2.400%                                             |  | August 2007    |  |                | 746    |  
|$ 70.0 million(1)(2) |  | 4.139%                 |  | 2.400%                                             |  | August 2008    |  |                | (1,136 | )
|$ 30.0 million       |  | 3.857%                 |  | 2.400%                                             |  | September 2008 |  |                | (175   | )
|$ 30.0 million(2)    |  | 3.819%                 |  | 2.400%                                             |  | October 2008   |  |                | (134   | )
|$ 20.0 million(2)    |  | 3.819%                 |  | 2.400%                                             |  | October 2008   |  |                | (89    | )
|$ 50.0 million(2)    |  | 3.935%                 |  | 2.400%                                             |  | May 2009       |  |                | (286   | )
|$ 30.0 million(2)    |  | 3.443%                 |  | 2.400%                                             |  | October 2009   |  |                | 558    |  
|                     |  |                        |  |                                                    |  |                |  |                |        |  
|Total                |  |                        |  |                                                    |  |                |  | $              | (1,046 | )
|                     |  |                        |  |                                                    |  |                |  |                |        |  

---

|(1) | The interest rate swap agreement was executed by our Prentiss Office Investors, L.P. joint venture.
|--- | ---------------------------------------------------------------------------------------------------

|(2) | The interest rate swap agreement was completed during the year ended December 31, 2004.
|--- | ---------------------------------------------------------------------------------------



Capital Improvements



Our properties require periodic investments of capital for tenant-related capital expenditures and for general capital improvements. The majority of
capital required relates to tenant-related capital expenditures and is dependent upon our leasing activity. Our leasing activity is a function of the percentage of our in-place leases expiring in current and future periods accompanied by our
exposure to tenant defaults and our ability to increase the average occupancy of our portfolio. For the year ended December 31, 2004 capital expenditures related to our in-service properties totaled $54.4 million.



44



---

##### Table of Contents

##### Index to Financial Statements

Equity Financing



During the year ended December 31, 2004, 2,496,462 common shares of beneficial interest, par value $.01, were issued. The table below details the
common shares issued during the period, common shares placed in or removed from treasury during the period and the common shares outstanding at December 31, 2004:



|                                                                                   |  |            |  
|---------------------------------------------------------------------------------- |  | ---------- | -
|Common shares outstanding at December 31, 2003                                     |  | 42,613,294 |  
|                                                                                   | 
|Common shares issued:                                                              |  |            |  
|Dribble Plan(1)                                                                    |  | 1,634,300  |  
|Share options exercised                                                            |  | 612,020    |  
|Conversion of operating partnership units                                          |  | 113,200    |  
|1996 Share Incentive Plan                                                          |  | 97,450     |  
|Employees Share Purchase Plan                                                     |  | 29,683     |  
|Dividend Reinvestment and Share Purchase Plan(2)                                   |  | 6,154      |  
|Trustees Share Incentive Plan                                                     |  | 3,655      |  
|                                                                                   |  |            |  
|                                                                                   |  | 2,496,462  |  
|Common shares placed in/removed from treasury:                                     |  |            |  
|Common shares surrendered in connection with share options exercised               |  | (125,963   | )
|Restricted share grants forfeited                                                  |  | (4,000     | )
|Common shares removed from treasury pursuant to our Key Employee Share Option Plan |  | 2,095      |  
|                                                                                   |  |            |  
|Common shares outstanding at December 31, 2004                                     |  | 44,981,888 |  
|                                                                                   |  |            |  

---

|(1) | On June 10, 2002, we entered into a securities sales agreement with Brinson Patrick
Securities Corporation which we refer to as the Dribble Plan. Under the Dribble Plan we may sell, with Brinson Patrick acting as our sales agent, up to 3,000,000 of our common shares at the then market price directly to the public. During the year
ended December 31, 2004, we issued 1,634,300 common shares through the Dribble Plan resulting in net proceeds of $54.1 million. The proceeds were used to repay a portion of the outstanding borrowings under our revolving credit facility. On May 28,
2004, we entered into an additional securities sales agreement with Brinson Patrick Securities Corporation covering 2,000,000 of our common shares in the form of the Dribble Plan that was adopted on June 10, 2002. Shares will be issuable pursuant to
the May 28, 2004 Dribble Plan after all shares have been issued under the original Dribble Plan.
|--- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(2) | We have a Dividend Reinvestment and Share Purchase Plan which allows investors an option to
purchase common shares by making optional cash investments of $100 to $5,000 in a given month for current shareholders or $500 to $5,000 for persons who are not current shareholders. The plan also allows shareholders to purchase our common shares by
reinvesting all or a portion of cash dividends received on our common or preferred shares. Purchases of greater than $5,000 can be accomplished by us granting a waiver to the $5,000 limit. During the year ended December 31, 2004, pursuant to our
Dividend Reinvestment and Share Purchase Plan, we issued 6,154 common shares resulting in net proceeds of $214,000. The proceeds were used to repay a portion of the outstanding borrowings under our revolving credit facility.
|--- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



On February 4, 2004, pursuant to a unit
repurchase agreement between our operating partnership and Brandywine Operating Partnership, L.P., we repurchased from Brandywine Operating Partnership, L.P. our outstanding 7.50% Series E Preferred Units and 26,768 common units held by Brandywine
Operating Partnership, L.P. The Series E Preferred Units, which were classified as mandatorily redeemable preferred units, a liability, on our consolidated balance sheet, were repurchased at their liquidation value of $10.0 million plus accrued and
unpaid dividends of $70,055. The common units, which were classified within minority interest in operating partnership on our consolidated balance sheet, were repurchased for $891,803 representing a per unit price of $33.316, calculated as the
average of the daily market price of our common shares for the 10 consecutive trading days prior to the date of repurchase. Concurrent with the repurchase, Brandywine Operating Partnership, L.P. repaid two promissory notes totaling $8.9 million and
accrued and unpaid interest of $282,308 due to our operating partnership. An amount totaling $1.7 million, representing the difference between the units repurchased and the proceeds from the promissory notes was paid by our operating partnership to
Brandywine Operating Partnership, L.P. using funds from our revolving credit facility.



45



---

##### Table of Contents

##### Index to Financial Statements

Using proceeds from our revolving credit facility, on February 24, 2004, we repurchased the operating
partnerships outstanding 8.30% Series B Cumulative Redeemable Perpetual Preferred Units, which were classified within minority interest in operating partnership on our consolidated balance sheet, for approximately $96.2 million, which included
accrued and unpaid dividends of $1.2 million. An amount totaling $1.6 million representing the original issuance cost of the Series B Cumulative Redeemable Perpetual Preferred Units was subtracted from net income in arriving at net income applicable
to common shareholders in accordance with EITF Topic No. D-42.



Off-Balance
Sheet Arrangements



At December 31, 2004 we had the
following off-balance sheet arrangements: (1) a non-controlling 50% interest in Broadmoor Austin Associates, a real estate joint venture and (2) a 25% non-controlling interest in Tysons International Partners, a real estate joint venture.



Our investment in unconsolidated joint ventures represents
less than .6% of our consolidated total assets as of December 31, 2004 and approximately 1.5% of our cash flow from operations for the year ended December 31, 2004. Our investments, however, do provide us with several benefits including increased
market share, important customer relations and a possible capital source to fund future real estate projects.



Broadmoor Austin Associates and Tysons International Partners represent real estate joint ventures which own and operate office properties in Austin,
Texas and Tysons Corner, Virginia, respectively. We act as managing venture partner and have the authority to conduct the business affairs of each joint venture, subject to approval and veto rights of the other venture partner. We account for our
interest in these joint ventures using the equity method of accounting.



The following information summarizes the financial position at December 31, 2004 for the investments in which we held an interest at December 31, 2004:



|                                              |  |              |        |               |   |              |  |   |                     |   |  |   |       
|--------------------------------------------- |  | ------------ | ------ | ------------- | - | ------------ |  | - | ------------------- | - |  | - | ------
|Summary of Financial Position: (in
thousands) |  | Total Assets |        | Total Debt(1) |   | Total Equity |  |   | CompanysInvestment
|Broadmoor Austin Associates                   |  | $            | 97,962 |               | $ | 131,979      |  | $ | (34,814             | ) |  | $ | 4,217 
|Tysons International Partners                 |  | $            | 89,268 |               | $ | 59,113       |  | $ | 28,914              |   |  |   | 8,726 
|                                              |  |              |        |               |   |              |  |   |                     |   |  |   |       
|                                              |  |              |        |               |   |              |  |   |                     |   |  | $ | 12,943
|                                              |  |              |        |               |   |              |  |   |                     |   |  |   |       

---

|(1) | The mortgage debt, all of which is non-recourse, is collateralized by the individual real estate property or properties within each venture, the net book value of
which totaled $164.9 million at December 31, 2004. Our pro rata share of the non- recourse mortgage debt totaled $80.8 million at December 31, 2004.
|--- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



The following information summarizes the results of operations for the year ended December 31, 2004 for our unconsolidated
joint ventures:



|                                      |  |              |        |           |   |       |                                     |  |   |       |  
|------------------------------------- |  | ------------ | ------ | --------- | - | ----- | ----------------------------------- |  | - | ----- | -
|Summary of Operations: (in
thousands) |  | TotalRevenue |        | NetIncome |   |       | Companys Share of NetIncome/(Loss) | 
|Broadmoor Austin Associates           |  | $            | 20,015 |           | $ | 5,058 |                                     |  | $ | 2,529 |  
|Tysons International Partners         |  | $            | 11,985 |           | $ | (399  | )                                   |  |   | (100  | )
|                                      |  |              |        |           |   |       |                                     |  |   |       |  
|                                      |  |              |        |           |   |       |                                     |  | $ | 2,429 |  
|                                      |  |              |        |           |   |       |                                     |  |   |       |  



46



---

##### Table of Contents

##### Index to Financial Statements

Contractual Obligations and Commercial Commitments



We have contractual obligations including mortgages and notes payable and ground lease obligations. The table below
presents, as of December 31, 2004, our future scheduled principal repayments of mortgages and notes payable and ground lease obligations of our consolidated properties:



|                                       |       |                        |           |  |           |         |           |   |            |  |   |         |  |   |        
|-------------------------------------- | ----- | ---------------------- | --------- |  | --------- | ------- | --------- | - | ---------- |  | - | ------- |  | - | -------
|Contractual Obligations (in
thousands) |       | Payments Due by Period
|                                       | Total |                        | 2005      |  | 2006/2007 |         | 2008/2009 |   | Thereafter
|Mortgages and notes payable            |       | $                      | 1,191,911 |  | $         | 118,308 |           | $ | 458,314    |  | $ | 356,159 |  | $ | 259,130
|Capital lease obligations              |       |                        |          |  |           |        |           |   |           |  |   |        |  |   |       
|Ground leases                          |       |                        | 29,524    |  |           | 408     |           |   | 817        |  |   | 818     |  |   | 27,481 
|Unconditional purchase obligations     |       |                        |          |  |           |        |           |   |           |  |   |        |  |   |       
|Other long-term obligations            |       |                        |          |  |           |        |           |   |           |  |   |        |  |   |       
|                                       |       |                        |           |  |           |         |           |   |            |  |   |         |  |   |        
|Total contractual cash obligations     |       | $                      | 1,221,435 |  | $         | 118,716 |           | $ | 459,131    |  | $ | 356,977 |  | $ | 286,611
|                                       |       |                        |           |  |           |         |           |   |            |  |   |         |  |   |        



Our mortgages and
notes payable consists of $578.8 million and $613.1 million of fixed rate and variable rate debt obligations, respectively. At December 31, 2004, our fixed rate debt obligations were subject to a weighted average interest rate of 7.33% and our
variable rate debt obligations were subject to interest rates that range from 30-day LIBOR plus 85 basis points to 30-day LIBOR plus 150 basis points. $395.0 million of our variable rate debt was effectively locked at an interest rate before the
spread over LIBOR, or 3.88% through our interest rate swap agreements. Interest payable under our mortgages and notes payable outstanding at December 31, 2004 are as follows:



|                    |  |                        |         |      |   |           |  |           |        |            |   |        |  |   |       
|------------------- |  | ---------------------- | ------- | ---- | - | --------- |  | --------- | ------ | ---------- | - | ------ |  | - | ------
|                    |  | Payments Due by Period
|(in thousands)      |  | Total                  |         | 2005 |   | 2006/2007 |  | 2008/2009 |        | Thereafter
|Interest payable(1) |  | $                      | 245,683 |      | $ | 62,100    |  | $         | 98,212 |            | $ | 55,972 |  | $ | 29,399

---

|(1) | Interest payable under our variable rate loans is calculated using our variable interest rate at December 31, 2004 which is equal to 30-day LIBOR of 2.40% plus our
spread over LIBOR which ranges between 85 basis points and 150 basis points.
|--- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



In connection with the disposition of a real estate property in May 2001, we entered into a financial guarantee with a maximum future potential payment of $1.4 million. The financial guarantee, provided to the third
party purchaser, guaranteed payment of an amount not to exceed the $1.4 million potential maximum if certain tenants, as defined in the purchase and sale agreement, fail to extend either their leases beyond the maturities of their current in-place
leases or to perform according to their in-place leases. A payment amount totaling $1.0 million was considered probable at the date of disposition and therefore, accrued during the year ended December 31, 2001. Pursuant to the financial guarantee,
during the year ended December 31, 2003, we paid the anticipated $1.0 million to the third party purchaser.



47



---

##### Table of Contents

##### Index to Financial Statements

As a condition of the purchase and sale and as security for our guarantee, we provided to the title
company at closing, two irrevocable letters of credit, totaling $1.4 million, drawn on a financial institution and identifying the purchaser as beneficiary. One letter of credit totaling $1.0 million expired in 2003. The remaining balance on the
second letter of credit totaling $189,000 at December 31, 2004 expires as follows:



|                                            |  |                                  |     |      |   |           |  |           |     |            |   |  |  
|------------------------------------------- |  | -------------------------------- | --- | ---- | - | --------- |  | --------- | --- | ---------- | - |  | -
|                                            |  | Commitment Expiration Per Period
|Other Commercial Commitments (in
thousands) |  | Total AmountsCommitted           |     | 2005 |   | 2006/2007 |  | 2008/2009 |     | Thereafter
|Lines of credit                             |  |                                  |    |      |   |          |  |           |    |            |  |  | 
|Standby letters of credit                   |  | $                                | 189 |      | $ | 63        |  | $         | 126 |            |  |  | 
|Guarantees                                  |  |                                  |    |      |   |          |  |           |    |            |  |  | 
|Standby repurchase obligations              |  |                                  |    |      |   |          |  |           |    |            |  |  | 
|Other commercial commitments                |  |                                  |    |      |   |          |  |           |    |            |  |  | 
|                                            |  |                                  |     |      |   |           |  |           |     |            |   |  |  
|Total commercial commitments                |  | $                                | 189 |      | $ | 63        |  | $         | 126 |            |  |  | 
|                                            |  |                                  |     |      |   |           |  |           |     |            |   |  |  



During the year ended
December 31, 2004, we transitioned a parcel of land from land held for development to construction in progress. The construction, which has an estimated total project cost of $48.1 million, includes a two building office project located in Del Mar,
California and will contain approximately 158,000 net rentable square feet upon completion. The project which is currently 50% pre-leased is owned by Prentiss/Collins Del Mar Heights, LLC, a joint venture, owned 70% by our operating partnership and
its affiliates and 30% by Collins Corporate Center, LLC, an unrelated third party. The accounts of Prentiss/Collins Del Mar Heights, LLC are consolidated with and into the accounts of our operating partnership. The December 31, 2004 carrying amount
of this development project was $23.4 million.



Funds from Operations



Funds from operations is a widely recognized measure of
REIT operating performance. Funds from operations is a non-GAAP financial measure and, as defined by the National Association of Real Estate Investment Trusts, means net income, computed in accordance with GAAP excluding extraordinary items, as
defined by GAAP, and gains (or losses) from sales of property, plus depreciation and amortization on real estate assets, and after adjustments for unconsolidated partnerships, joint ventures and subsidiaries. We believe that funds from operations is
helpful to investors and our management as a measure of our operating performance because it excludes depreciation and amortization, gains and losses from property dispositions, and extraordinary items, and, as a result, when compared year over
year, reflects the impact on operations from trends in occupancy rates, rental rates, operating costs, development activities, general and administrative expenses, and interest costs, providing perspective not immediately apparent from net income.
In addition, our management believes that funds from operations provides useful information to the investment community about our financial performance when compared to other REITs since funds from operations is generally recognized as the industry
standard for reporting the operating performance of REITs. However, our funds from operations may not be comparable to funds from operations reported by other REITs that do not define funds from operations exactly as we do. We believe that in order
to facilitate a clear understanding of our operating results, funds from operations should be examined in conjunction with net income as presented in our consolidated financial statements and notes thereto included elsewhere in this Form 10-K. We
believe that net income is the most directly comparable GAAP financial measure to funds from operations. Funds from operations does not represent cash generated from operating activities in accordance with GAAP and should not be considered as an
alternative to net income as an indication of our performance or to cash flows as a measure of liquidity or our ability to make distributions. Funds from operations does not reflect either depreciation and amortization costs or the level of capital
expenditures and leasing costs necessary to maintain the operating performance of our properties, which are significant economic costs that could materially impact our results of operations. The following is a reconciliation of net income to funds
from operations:



|                                                                           |      |                         |         |      |  |   |         |   |  |   |         |  
|-------------------------------------------------------------------------- | ---- | ----------------------- | ------- | ---- |  | - | ------- | - |  | - | ------- | -
|Funds from operations (in
thousands)                                       |      | Year Ended December 31, |        
|                                                                           | 2004 |                         |         | 2003 |  |   | 2002    |  
|Net income                                                                 |      | $                       | 62,423  |      |  | $ | 59,417  |   |  | $ | 74,281  |  
|Adjustments:                                                               |      |                         |         |      |  |   |         |   |  |   |         |  
|Real estate depreciation and amortization(1)                               |      |                         | 95,429  |      |  |   | 79,972  |   |  |   | 73,368  |  
|Minority interest share of depreciation and amortization                   |      |                         | (4,682  | )    |  |   |        |   |  |   |        |  
|Real estate depreciation and amortization of unconsolidated joint ventures |      |                         | 2,985   |      |  |   | 2,960   |   |  |   | 3,103   |  
|Minority interests(2)                                                      |      |                         | 1,733   |      |  |   | 1,875   |   |  |   | 2,589   |  
|Gain on sale of real estate                                                |      |                         | (13,179 | )    |  |   | (4,978  | ) |  |   | (8,430  | )
|                                                                           |      |                         |         |      |  |   |         |   |  |   |         |  
|Funds from operations(3)                                                   |      | $                       | 144,709 |      |  | $ | 139,246 |   |  | $ | 144,911 |  
|                                                                           |      |                         |         |      |  |   |         |   |  |   |         |  



48



---

##### Table of Contents

##### Index to Financial Statements

---

|(1) | Includes real estate depreciation and amortization included in continuing operations and real estate depreciation and amortization included in discontinued
operations.
|--- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(2) | Represents the minority interests applicable to the common unit holders of the operating partnership.
|--- | -----------------------------------------------------------------------------------------------------

|(3) | Impairment losses and debt defeasance related to real estate are not added back in our reconciliation of net income to funds from operations; therefore, for periods
in which impairment losses or debt defeasance are recognized, funds from operations is negatively impacted. We recognized impairment losses on real estate of $1.8 million and $2.9 million during the years ended December 31, 2003 and 2002,
respectively. We recognized impairment loss on a mortgage loan of $2.9 million for the year ended December 31, 2004. We recognized debt defeasance of $5.3 million during the year ended December 31, 2004. The impairment losses totaling $1.8 million
and $2.9 million for the years ended December 31, 2003 and 2002 respectively are included in the line item income from discontinued operations in our consolidated statements of income.
|--- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



Funds from operations increased by $5.5 million for the year ended December
31, 2004 from the year ended December 31, 2003 and decreased by $5.7 million for the year ended December 31, 2003 from the year ended December 31, 2002 as a result of the factors discussed in the analysis of operating results.



Recently Issued Accounting Pronouncements



In January 2003, the Financial Accounting Standards Board issued FASB
Interpretation No. 46, Consolidation of Variable Interest Entities. In December 2003, the Financial Standards Board issued a revision to FASB Interpretation No. 46, FASB Interpretation No. 46(R). The Interpretation, as revised, requires
consolidation of an entity by an enterprise if that enterprise will absorb a majority of the entitys expected losses if they occur, receive a majority of the entitys expected residual returns if they occur, or both. An entity subject to
this Interpretation is called a variable interest entity. The disclosure provisions of this Interpretation, as revised, are effective for financial statements issued after December 31, 2003. Per this Interpretation, as revised, a public entity, that
is not a small business issuer, with a variable interest entity to which the provisions of the Interpretation have not been applied as of December 24, 2003, shall apply this Interpretation no later than the end of the first reporting period that
ends after March 15, 2004. However, prior to the required application of this Interpretation, a public entity, that is not a small business issuer, shall apply this Interpretation to those entities that are considered to be special-purpose entities
no later than as of the end of the first reporting period that ends after December 15, 2003.



In November 2004, the EITF reached a consensus on an approach for evaluating whether the criteria in paragraph 42 of Statement 144 have been met for the purposes of classifying the results of operations of a component
of an entity that either has been disposed of or is classified as held for sale as discontinued operations. The consensus was incorporated into Appendix A (03-13A) of Issue No. 03-13, Applying the Conditions in Paragraph 42 of FASB Statement
No. 144, Accounting for the Impairment or Disposal of Long-Lived Assets, in Determining Whether to Report Discontinued Operations.



The guidance should be applied to a component of an enterprise that is either disposed of or classified as held for sale in fiscal periods beginning after
December 15, 2004. In accordance with the criteria prescribed in 03-13A, we evaluated our continuing involvement resulting from certain management agreements retained in relation to real estate sale transactions occurring during period and as a
result of our evaluation determined that the results of operations from the sold properties should be classified within discontinued operations on our consolidated statements of income.



49



---

##### Table of Contents

##### Index to Financial Statements

In December 2004, the Financial Accounting Standards Board Issued Statement of Financial Accounting
Standards No. 123(R), Share-Based Payment, a revision to Statement of Financial Accounting Standards No. 123, Accounting for Stock-Based Compensation. The Statement supersedes APB Opinion No. 25, Accounting for Stock
Issued to Employees, and its related implementation guidance.



The Statement which focuses primarily on accounting for transactions in which an entity obtains employee services in share-based payment transactions, establishes standards for the accounting for transactions in which an entity exchanges
its equity instruments for goods or services. It also addresses transactions in which an entity incurs liabilities in exchange for goods or services that are based on the fair value of the entitys equity instruments or that may be settled by
the issuance of those equity instruments.



The Statement
requires a public entity to measure the cost of employee services received in exchange for an award of equity instruments based on the grant-date fair value of the award (with limited exceptions). That cost will be recognized over the period during
which an employee is required to provide service in exchange for the awardthe requisite service period (usually the vesting period). No compensation cost is recognized for equity instruments for which employees do not render the requisite
service.



The Statement, which is effective as of the beginning
of the first interim or annual reporting period that begins after June 15, 2005 for public entities that do not file as small business issuers, will not have a material impact on our financial statements.



In December 2004, the Financial Accounting Standards Board issued Statement
of Financial Accounting Standards No. 153, Accounting for Non-monetary Transactions. The statement requires non-monetary exchanges to be accounted for at fair value, recognizing any gain or loss, if the transactions meet a
commercial-substance criterion and fair value is determinable. The statement is effective for non-monetary transactions occurring in fiscal years beginning after June 15, 2005. We believe that the implementation of this standard will not have a
material impact on our consolidated financial position or results of operations.



Application of and Changes in Law Regarding Ownership of Subsidiaries and Qualifications as a REIT



For federal income tax purposes, we were organized and have operated in conformity with the requirements for qualification as a REIT under the Internal
Revenue Code of 1986, as amended, beginning with our taxable year ending December 31, 1996 and through the date hereof. The Internal Revenue Code sets forth various income, asset, ownership, and distribution tests with respect to which a REIT must
comply in order to maintain its status as a REIT. Although the Internal Revenue Service, based upon its interpretation of the relevant judicial and administrative authorities, may take the position that a REIT has failed a particular qualification
test, the facts and circumstances upon which such a determination would be based are controlled by the REIT. To the extent that a REIT does not comply with a particular test, the decision to take an action that would prevent compliance or to not
take an action that would have allowed compliance will be directly within the control of the REIT. We are unaware of any instance in which a REIT has lost its qualification as a REIT due to the failure of one of the statutory qualification tests
under the Internal Revenue Code. We believe that our current and proposed method of operation will enable us to continue to qualify as a REIT.



The REIT Modernization Act effective for 2001 and later years, contains several provisions affecting REITs. The REIT Modernization Act allows a subsidiary
to perform services for tenants without disqualifying the rents received (as under prior law). These subsidiaries, called Taxable REIT Subsidiaries, are subject to taxation and are limited in the amount of debt and rental payments between the REIT
and the Taxable REIT Subsidiaries. The fair market value of all Taxable REIT Subsidiaries securities cannot exceed 20% of the REITs fair market value. Existing subsidiaries could be grandfathered in a one-time tax-free conversion. They
are not subject to these limitations, unless engaging in a new line of business or increasing assets. If either of these events occurs, new restrictions on debt and rental payments will apply to these entities as well. The REIT Modernization Act
also reduced the REIT taxable income distribution requirement from 95% to 90%.



Inflation



Most of the leases on our
properties require tenants to pay increases in operating expenses, including common area charges and real estate taxes, thereby reducing the impact on us of the adverse effects of inflation. Leases also vary in term from one month to 17 years,
further reducing the impact on us of the adverse effects of inflation.



50



---

##### Table of Contents

##### Index to Financial Statements

RISK FACTORS



An investment in us involves various risks. The following describes factors that in some cases may have affected, and in the future could affect, our
actual operating results and could cause such results to differ materially from those in any forward-looking statements. This list is not necessarily exhaustive, and new risk factors emerge from time to time. We cannot assure you that the factors
described below are all of the material risks to us at any specific point in time. You should carefully consider the following factors which qualify in their entirety each forward-looking statement.



Risks Related to General Business Operations



Properties with environmental problems could cause us to incur clean-up costs or other
liabilities.



Various federal, state and local
environmental laws, ordinances, and regulations impose liability upon a current or previous owner or operator of real property for the costs of removal or remediation of contamination caused by hazardous or toxic substances or other wastes at the
property. These laws often impose liability whether or not the owner or operator knew of, or was responsible for, the presence of the hazardous or toxic substances or other waste. In addition, the presence of property contamination, or the failure
to remediate contamination at a property properly, may adversely affect a partys ability to borrow using the real property as collateral. Persons who generate or arrange for the disposal or treatment of hazardous or toxic substances or other
wastes may also be liable for the costs of removal or remediation of contamination at a disposal or treatment facility, whether or not such facility is or ever was owned or operated by them. Environmental laws and common law principles also impose
liability upon a party for the release of and exposure to environmental contamination, including asbestos-containing materials into the air, and third parties may use these laws to seek recovery from owners or operators of property for personal
injury or property damage associated with environmental contamination, including asbestos-containing materials.



As the owner of the properties, we may be liable for these types of costs. We obtain environmental site assessments on all of our properties prior to
their acquisition. The purpose of environmental site assessments is to identify potential recognized environmental conditions that may be associated with a property. For a number of our properties, the environmental site assessments also referenced
prior Phase II environmental site assessments which involved subsurface sampling and analysis on such properties.



The previously-mentioned environmental site assessments have not revealed any potential recognized environmental conditions that we believe could have a
material adverse effect on our business, assets or results of operations. However, it is possible that the previously-mentioned environmental site assessments relating to any one of our properties do not reveal all adverse environmental conditions.
In addition, there could be environmental conditions that were created at a property after the applicable environmental site assessment was completed.



Effective August 2004, we renewed our insurance which covers environmental conditions and business interruption if and when they occur. This policy covers
both governmental and third-party claims associated with the covered environmental conditions. Our limits for loss under the policy are $10 million per occurrence and $10 million in the aggregate. We cannot assure you that these coverages will be
sufficient to cover all costs of environmental issues that could arise.



Our
properties are illiquid assets.



Our investments in
properties are relatively illiquid. This illiquidity will tend to limit our ability to vary our portfolio promptly in response to changes in economic or other conditions. Some of our properties are mortgaged to secure payment of indebtedness. If we
were unable to meet our mortgage payments, the lender could foreclose on the properties and we could incur a loss. In addition, if we wished to dispose of one or more of the mortgaged properties, we might not be able to obtain a release of the lien
on the mortgaged property. If a lender forecloses on a mortgaged property or if a mortgage lien prevents us from selling a property, our cash flow available for distribution to our security holders could decline.



51



---

##### Table of Contents

##### Index to Financial Statements

Cost increases or revenue decreases can adversely affect property yields and values.



The yields available from equity investments in real estate depend in large
part on the amount of income generated and expenses incurred. If our properties do not generate revenues sufficient to meet operating expenses, including debt service, tenant improvements, leasing commissions and other capital expenditures, we may
have to borrow additional amounts to cover fixed costs, and our cash flow and ability to make distributions to our shareholders will be adversely affected.



Factors which may affect our revenues and the value of our properties include:



| |  |  | the national, state and local economic climate and real estate conditions, such as oversupply of or reduced demand for space and changes in market rental rates;
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | the perceptions of prospective tenants of the safety, convenience and attractiveness of our properties;
| | - |  | -------------------------------------------------------------------------------------------------------



| |  |  | our ability to provide adequate management, maintenance and insurance, including coverages for earthquakes and terrorist acts;
| | - |  | ------------------------------------------------------------------------------------------------------------------------------



| |  |  | our ability to collect on a timely basis all rent from tenants;
| | - |  | ---------------------------------------------------------------



| |  |  | the expense of periodically renovating, repairing and reletting spaces;
| | - |  | -----------------------------------------------------------------------



| |  |  | increasing operating costs, including real estate taxes and utilities, which may or may not be passed through to tenants; and
| | - |  | -----------------------------------------------------------------------------------------------------------------------------



| |  |  | our compliance with the laws, changes in the tax laws, fluctuations in interest rates and the availability of financing.
| | - |  | ------------------------------------------------------------------------------------------------------------------------



Certain significant expenditures associated with our properties, such as
mortgage payments, real estate taxes, insurance and maintenance costs, are generally not reduced when circumstances cause a reduction in rental revenues from our properties.



Tenant defaults and bankruptcy could cause rent collection difficulties.



The risk that some of our tenants may declare bankruptcy is higher because
of the overall economic decline over the past several years. A significant portion of our income is derived from rental income on our properties. As of December 31, 2004, we had approximately 950 tenants, with the following 8 tenants representing
approximately 23% of our aggregate annualized base rent and approximately 20% of our total net rentable square footage: International Business Machines, Kaiser Foundation Health Plan, 7-11, Inc., Northrop Grumman Corporation, General Services
Administration, AT&T, CGI Group, Inc., and R.R. Donnelly. Currently, we derive approximately 33% of our total annualized base rental revenue from tenants in the computer systems design, management, scientific, technical and insurance industries.
As a result, our distributable cash flow and ability to make expected distributions to our shareholders could be adversely affected if any of these industries is materially adversely affected by the economy or if a significant number of our tenants
fail to pay their rent due to bankruptcy, weakened financial condition or otherwise. Our leases generally do not contain restrictions designed to ensure the creditworthiness of our tenants. From time to time a tenant may experience a downturn in its
business. Such a downturn may weaken its financial condition, and it may stop paying rent when due. In addition, at any time, a tenant may seek the protection of the bankruptcy laws, which could result in delays in rental payments or in the
rejection and termination of such tenant leases. These events would cause a reduction in our cash flow and the amounts available for distributions to our shareholders. We cannot assure you that tenants will not file for bankruptcy protection in the
future or, if any tenants file, that they will affirm their leases and continue to make rental payments in a timely manner.



Property maintenance costs may escalate beyond our ability to recover such costs through rents.



Our properties are subject to increases in operating expenses, such as cleaning; electricity; heating, ventilation and air
conditioning; elevator repair and maintenance; insurance and administrative costs; and other general costs associated with security, landscaping, and repairs and maintenance. Due to the terrorist acts of September 11, 2001, we have experienced
increases in insurance premiums. While our tenants generally are obligated to pay a portion of the escalating costs, there can be no assurance that our tenants will agree to pay such costs upon renewal or that new tenants will agree to pay such
costs. If operating expenses increase, the local rental market may limit the extent to which rents may be increased to meet increased expenses without decreasing occupancy rates. Our ability to make distributions to our shareholders could be
adversely affected if operating expenses increase without a corresponding increase in revenues.



52



---

##### Table of Contents

##### Index to Financial Statements

Non-renewal of leases and non-reletting of space could adversely affect our rental revenues.



We are subject to several risks upon expiration of leases for space located
at our properties. The leases may not be renewed, the space may not be relet or the terms of renewal or reletting, including the costs of required renovations, may be less favorable than current lease terms. Leases on a total of approximately 7.3%
and 14.5% of the total net rentable square feet in our office and industrial properties, respectively, are scheduled to expire during 2005. If we are unable to relet promptly or renew the leases for a particular property or properties or if the
rental rates upon such renewal or reletting are significantly lower than expected rates or if our budgets for these purposes prove to be inadequate, then our cash flow and ability to make expected distributions to our shareholders may be adversely
affected.



Some of our properties may be subject to uninsured losses such as
from earthquakes or acts of terrorism.



We carry
comprehensive liability, fire, flood and, where appropriate, extended coverage and rental loss insurance with respect to our properties, with policy specifications, exclusions, deductibles and insured limits customarily carried for similar
properties. There are, however, certain types of losses, such as from wars, that may be either uninsurable or the cost of obtaining insurance would be so high that it would be more prudent to accept the risk of loss. We currently maintain a separate
$ 125 million blanket earthquake policy on the properties we own in Northern and Southern California and $100 million of terrorism coverage on all our properties. Should an uninsured loss or a loss in excess of insured limits occur, we could lose
both capital invested in a property as well as the anticipated future revenue from the property but would continue to be obligated on any mortgage indebtedness or other obligations related to the property. Any such loss would adversely affect our
business, financial condition and results of operations.



We
carry insurance coverage on our properties of types and in amounts that we believe are in line with coverage customarily obtained by owners of similar properties. In response to the uncertainty in the insurance market following the terrorist attacks
of September 11, 2001, the Federal Terrorism Risk Insurance Act was enacted in November 2002 to require regulated insurers to make available coverage for certified acts of terrorism (as defined by the statue) through December 31, 2004, subject to
extension by the United States Department of Treasury through December 31, 2005. The Federal Terrorism Risk Insurance Act expires on December 31, 2005, unless extended, and therefore, we cannot currently anticipate whether the Act will renew upon
expiration. In connection with the renewal of coverage for the policy year beginning August 1, 2005, we are currently evaluating coverage on terms and amounts comparable to our existing policies, subject to cost and market availability. Our current
property insurance coverage carries a $300 million per occurrence limit.



If another terrorist incident occurs, however, insurance policies purchased by us may expressly exclude hostile acts, and it may be impossible to obtain insurance covering terrorist attacks. In the event of such
terrorist acts or other catastrophic losses, we may not be able to purchase policies in the future with coverage limits and deductibles similar to those that are currently in place and if such event occurs, we would expect our insurance premiums to
increase thereafter.



Our incurrence of debt could have a material adverse
effect on operating performance.



If principal payments
due at maturity cannot be refinanced, extended or paid with proceeds of other capital transactions, such as the issuance of new equity capital, we expect that our cash flow will not be sufficient in all years to pay distributions at expected levels
and to repay all maturing debt. Furthermore, if prevailing interest rates or other factors at the time of refinancing result in higher interest rates upon refinancing, the interest expense relating to such refinanced indebtedness would increase.
This increase would adversely affect our cash flow and the amounts available for distributions to our shareholders. If a property is mortgaged to collateralize payment of indebtedness and we are unable to meet mortgage payments, the property could
be foreclosed upon by or otherwise transferred to the mortgagee with a consequent loss of income and asset value.



53



---

##### Table of Contents

##### Index to Financial Statements

Our use of variable rate debt and derivative financial instruments may cause an increase in debt service.



We have incurred and may incur in the future indebtedness
that bears interest at variable rates. Variable rate debt creates higher debt service requirements if market interest rates increase, which would adversely affect our cash flow and the amounts available for distributions to our shareholders.



As of December 31, 2004, we had $613.1 million of floating
rate debt out of total debt, including both consolidated and unconsolidated joint venture debt, of $1.4 billion. Our pro rata share of both consolidated and unconsolidated floating rate and total debt equated to $553.8 million and $1.2 billion at
December 31, 2004. We enter into interest rate swap agreements in the ordinary course of our business to hedge or modify our exposures to interest rate fluctuations. Of our pro rata share of floating rate debt, $360.7 million was swapped to fixed
rate debt through various interest rate protection contracts with maturity dates ranging from July 2005 to October 2009. While our use of these derivatives is intended to allow us to better manage certain risks, it is possible that, over time,
mis-matches may arise with respect to the derivatives and the cash market instruments they are intended to hedge. Discrepancies can also arise between the derivative and cash markets. Derivatives also have risks that are similar in type to the risks
of the cash market instrument on which their values are based. For example, in times of market stress, sharp price movements or reductions in liquidity in the cash markets may be related to comparable or even greater price movements and reductions
in liquidity in the derivative markets. Further, the risks associated with derivatives are potentially greater than those associated with the related cash market instruments because of the additional complexity and potential for leverage. In
addition, derivatives may create credit risks, as well as legal, operational and other risks beyond those associated with the underlying cash market instruments on which their values are based. Credit risk involves the risk that a counterparty on a
derivative transaction will not fulfill its contractual obligations. In an effort to limit credit risk, we have a policy that requires the counterparty to the transaction to have a credit rating no lower than A- by a nationally recognized rating
agency at the time we enter into a derivative transaction. There can be no assurance, however, that our hedging strategy or techniques and policies for minimizing credit and other risks associated with our hedging activity will be effective, that
our profitability will not be adversely affected during any period of changes in interest rates or that the costs of hedging will not exceed the benefits.



If we are unable to replace construction loans with permanent refinancing, we may have to sell the development properties at a loss.



If developments are financed through construction loans or if acquisitions
are financed with short-term bridge loans in anticipation of later, permanent financing, there is a risk that upon completion of construction or the maturity of the bridge loans, permanent financing may not be available or may be available only on
disadvantageous terms. As of December 31, 2004, we were a party to a $34.0 million construction loan with total outstanding borrowings of $8.9 million at December 31, 2004. The debt is an obligation of Prentiss/Collins Del Mar Heights, LLC which is
owned 70% by our operating partnership and 30% by Collins Corporate Center, LLC. Our pro rata share of the outstanding borrowings equate to $6.3 million. In the event that upon maturity we are unable to obtain permanent financing for this property
on favorable terms, we could be forced to sell such property at a loss or the property could be foreclosed upon by the lender and result in loss of income and asset value.



Our acquisition of new properties which lack operating history with us give rise to difficulties in predicting revenue potential.



From time to time, we acquire office properties. These
acquisitions could fail to perform in accordance with expectations. If we fail to accurately estimate occupancy levels, operating costs or costs of improvements to bring an acquired property up to the standards established for its intended market
position, the operating performance of the property may be below our expectations. Acquired properties may have characteristics or deficiencies affecting their valuation or revenue potential that we have not yet discovered. We cannot assure you that
the operating performance of acquired properties will increase or be maintained under our management.



During 2004, we acquired approximately 2.3 million square feet of office property for gross consideration of approximately $274.1 million. Some of these
properties have had relatively short or no operating history under our management; therefore, we have had limited control over the operation of these buildings. Our ability to manage our growth effectively will require us to integrate successfully
our new acquisitions into our existing management structure.



54



---

##### Table of Contents

##### Index to Financial Statements

Our redevelopment, development and construction activities may give rise to unexpected costs and can make it difficult
to predict revenue potential.



We redevelop, develop and
construct primarily office buildings. The risks associated with these activities include:



| |  |  | abandonment of redevelopment or development opportunities resulting in a loss of invested capital;
| | - |  | --------------------------------------------------------------------------------------------------



| |  |  | construction costs of a property exceeding original estimates potentially resulting in yields on invested capital lower than expected;
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------



| |  |  | we may be unable to complete construction and/or leasing of a Property on schedule;
| | - |  | -----------------------------------------------------------------------------------



| |  |  | occupancy rates and rents at a newly renovated or completed property may not be sufficient to make the property profitable;
| | - |  | ---------------------------------------------------------------------------------------------------------------------------



| |  |  | financing may not be available on favorable terms for redevelopment or development of a property possibly increasing the projected cost of the project;
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | permanent financing may not be available on favorable terms to replace short-term construction loans and construction and lease-up may not be completed on schedule, resulting in
increased interest expense and construction costs;
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | all necessary zoning, land-use, building, occupancy and other required governmental permits and authorizations may not be obtained or may not be obtained on a timely basis resulting
in possible delays, decreased profitability and increased management time and attention; and
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | increased management time required for such activities may divert their attention from other aspects of our business.
| | - |  | ---------------------------------------------------------------------------------------------------------------------



These risks and potential costs may adversely affect our results of
operations.



The geographic concentration of our properties in markets which
are in economic decline could have a material adverse effect on operating performance.



Properties located in the Mid-Atlantic, Midwest, Southwest, Northern California and Southern California provided approximately 26%, 17%, 36%, 10% and 11%, respectively, of total rental income for the year ended
December 31, 2004. Like other real estate markets, these commercial real estate markets have experienced economic downturns in the past, and future declines in any of these economies or real estate markets could adversely affect our cash available
for distribution. Our financial performance and ability to make distributions to our shareholders are, therefore, particularly sensitive to the economic conditions in these markets. The local economic climate, which may be adversely impacted by
business layoffs or downsizing, industry slowdowns, changing demographics and other factors, and local real estate conditions, such as oversupply of or reduced demand for office, industrial and other competing commercial properties, may affect our
revenues and the value of our properties, including properties to be acquired or developed. We cannot assure you that these local economies will grow in the future.



Changes in market conditions including capitalization rates applied in real estate acquisitions could impact our ability to grow through
acquisitions.



Acquisitions are a key component of our
external growth strategy. We selectively pursue acquisitions in our core markets when long-term yields make acquisitions attractive. We compete with numerous property owners for the acquisition of real estate properties. Some of our competitors may
be willing to accept lower yields on their investments impacting our ability to acquire real estate assets and thus limit our external growth.



Changes in capitalization rates applied to real estate assets could impact the market value of our assets.



From time to time, we sell real estate assets. If market conditions change
and buyers of real estate assets demand higher yields on their investments, the market value of our assets will decline.



55



---

##### Table of Contents

##### Index to Financial Statements

Some of our competitors in markets in which we have properties may have newer, better-located or better-capitalized
properties.



Numerous office and industrial properties
compete with our properties in attracting tenants to lease space. In each market we compete on a number of factors including rental rates, tenant concession allowances, quality and location of buildings, quality of property management and other
economic and non-economic factors. Our competitors may have greater financial resources than are available to us and/or they may be willing to rent space at lower rental rates or provide greater leasing concessions. Our major competitors in each
market include the following companies:



|                    |  |                                                                                                                                                                
|------------------- |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------
|Segment             |  | Competitors                                                                                                                                                    
|Mid-Atlantic        |  | Boston Properties, CarrAmerica Realty Corp., Corporate Office Properties Trust, Equity Office Properties, Trizec, Vornado Realty Trust                         
|                    | 
|Midwest             |  | CarrAmerica Realty Corp., Duke Realty Corp., Equity Office Properties, Hines, John Buck Co., Marvin Herb, Tishman Speyer, Transwestern, Trizec Properties, Inc.
|                    | 
|Southwest           |  | CarrAmerica Realty Corp., Crescent Real Estate Equities, Equity Office Properties, Lincoln Property Co., Trammell Crow Co., Trizec Properties, Inc.            
|                    | 
|Northern California |  | Boston Properties, CarrAmerica Realty Corp., Equity Office Properties, RREEF, Shorenstein Co.                                                                  
|                    | 
|Southern California |  | Arden Realty, CarrAmerica Realty Corp., Equity Office Properties, Kilroy Realty Corp., Lowe Enterprises, RREEF                                                 



This competition could
have an adverse effect on our operating performance because some of these competing properties may be newer, better-located or better-capitalized than our properties.



Property ownership through partnerships and joint ventures could subject us to the contrary business objectives of our partners or
co-venturers.



Through Prentiss Properties Acquisition
Partners, L.P., our operating partnership, we own non-controlling interests in real estate, including: (1) a non-controlling 50% interest in the Broadmoor Austin Associates and (2) a non-controlling 25% interest in Tysons International Partners,
which in the aggregate represented approximately $2.4 million, or 3.9% of our net income for the year ended December 31, 2004. Our pro rata share of mortgage debt related to these unconsolidated interests is approximately $80.8 million, or 6.7% of
our pro rata share of total debt outstanding, as of December 31, 2004. Through these interests, we act as managing venture partner and have the authority to conduct business affairs of each joint venture, subject to approval and veto rights of the
other venture partner.



We may also participate with other
entities in property ownership or in providing property-related services through joint ventures or partnerships. Partnership or joint venture investments may involve risks such as the following:



| |  |  | our partners or co-venturers might become bankrupt;
| | - |  | ---------------------------------------------------



| |  |  | our partners or co-venturers might at any time have economic or other business interests or goals that are inconsistent with our business interests or goals; and
| | - |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | our partners or co-venturers may be in a position to take action contrary to our instructions or make requests contrary to our policies or objectives.
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------------



56



---

##### Table of Contents

##### Index to Financial Statements

We will, however, seek to maintain sufficient control of such partnerships or joint ventures to achieve
our business objectives. Although our organizational documents do not limit the amount of available funds that we may invest in partnerships or joint ventures, our revolving credit facility requires lender consent for certain investments in land,
development projects and joint ventures.



Through Prentiss
Properties Acquisition Parnters, L.P., our operating partnership, we own a controlling 51% interest in Prentiss Office Investors, L.P. Prentiss Office Investors, L.P. was established on January 22, 2004 to acquire office properties in our core
markets of Washington D.C./Northern Virginia, Chicago, Dallas/Ft. Worth, Northern California and San Diego/Orange County. The partnership was initially 99.9% owned by the operating partnership and was seeded by the transfer of several acquisitions
including, 2291 Wood Oak Drive a single office building containing approximately 228,000 net rentable square feet located in Herndon Virginia, Corporate Lakes III a single office building containing approximately 124,000 net rentable square feet
located in Chicago Illinois, and seven office buildings containing approximately 370,000 net rentable square feet located in Carlsbad California.



Pursuant to a joint venture agreement, effective February 1, 2004, Stichting Pensioenfonds ABP, a Netherlands based pension fund, acquired a 49% limited
partnership interest in Prentiss Office Investors, L.P. for proceeds totaling $68.9 million. The joint venture is consolidated with and into the accounts of the operating partnership.



Pursuant to its limited partnership agreement, Prentiss Office Investors, L.P. will engage in a series of transactions
pursuant to which it intends to acquire Class A office properties over an 18 to 30 month period in the geographic regions within the United States in which we currently conduct business. Class A office properties will not be acquired after the
initial 18-30 month investment period unless our operating partnership, as general partner of Prentiss Office Investors, L.P., and Stichting Pensioenfonds ABP, as limited partner of Prentiss Office Investors, L.P., mutually agree to amend the
limited partnership agreement to provide for a longer investment period. Prentiss Office Investors, L.P. anticipates incurring indebtedness in an aggregate amount of up to 60.0% of the undepreciated acquisition costs of all of the properties owned
by Prentiss Office Investors, L.P. As a result, pursuant to its limited partnership agreement, Prentiss Office Investors, L.P. has the authority to invest up to $510.0 million during its 18-30 month investment period, which will include equity
contributed to Prentiss Office Investors, L.P. and the indebtedness in an aggregate amount up to 60% of the undepreciated acquisition costs of all properties acquired by the partnership. At December 31, 2004, Prentiss Office Investors, L.P. owned 12
Class A office properties totaling 989,000 net rentable square feet with an aggregate undepreciated acquisition cost totaling approximately $192.2. Prentiss Office Investors, L.P. has totaled indebtedness of $115.7 million at December 31, 2004,
representing 60.2% of the undepreciated acquisition cost of all the properties owned by the partnership.



In the future, we may acquire limited partnership interests in property partnerships without partnership management responsibility or co-venturer
interests or co-general partnership interests in property partnerships with shared responsibility for managing the affairs of the property partnership or joint venture. In these instances, we will not be in a position to exercise sole
decision-making authority regarding the property partnership or joint venture.



Americans with Disabilities Act compliance could lead to unanticipated costs.



The Americans with Disabilities Act of 1990 requires specified public accommodations to meet federal requirements governing accessibility for persons with disabilities related to access and use by disabled persons.
Compliance with the Americans with Disabilities Act could require modifications to our properties. Non-compliance could result in, among other things, various penalties including injunctive relief and monetary damages. Although we have no basis for
believing that our properties are not in compliance with the requirements of the Americans with Disabilities Act, if we were required to make unanticipated expenditures to comply with the Americans with Disabilities Act, our cash flow and the
amounts available for distributions to our shareholders may be adversely affected.



57



---

##### Table of Contents

##### Index to Financial Statements

We depend on our direct and indirect subsidiaries dividends and distributions, and these subsidiaries
creditors and preferred security holders are entitled to payment of amounts payable to them by the subsidiaries before the subsidiaries may pay any dividends or distributions to us.



Substantially all of our assets consist of our partnership interests in Prentiss Properties Acquisition Partners, L.P., our
operating partnership. Our operating partnership holds substantially all of its properties and assets through subsidiaries. Our operating partnership, therefore, depends for substantially all of its revenue on cash distributions to it by its
subsidiaries. The creditors and preferred security holders, if any, of each subsidiary are entitled to payment of the subsidiarys obligations to them, when due and payable, before distributions may be made by the subsidiary to our operating
partnership. Thus, our operating partnerships ability to make distributions to its unit holders depends on its subsidiaries ability to satisfy their obligations to their creditors, preferred security holders, if any, and make
distributions to our operating partnership. In addition, the right of our operating partnership unit holders to participate in any distribution of the assets of any of our operating partnerships direct or indirect subsidiaries upon the
liquidation, reorganization or insolvency of the subsidiary, and any consequent right of our operating partnership unit holders to participate in those assets, will be subject to the claims of the creditors and preferred security holders, if any, of
the subsidiary. Thus, our ability to pay dividends to holders of our common shares depends on our operating partnerships ability first to satisfy its obligations to its creditors, preferred security holders, if any, then to make distributions
to us. In addition, our shareholders will have the right to participate in any distribution of the assets of any of our direct or indirect subsidiaries upon the liquidation, reorganization or insolvency of the subsidiary, and consequently to
participate in those assets, only after the claims of the creditors, including trade creditors, and preferred security holders, if any, of the subsidiary are satisfied.



Risks Related to Our Company



Our status as a REIT is dependent on compliance with federal income tax requirements.



We have operated and intend to continue to operate as a REIT for federal income tax purposes. We have not requested, and do
not expect to request, a ruling from the IRS (1) that the operating partnership and each of its non-corporate subsidiaries have been and will be classified as partnerships for federal income tax purposes or (2) that we qualify as a REIT.
Qualification as a REIT involves the application of highly technical and complex provisions of the Internal Revenue Code, with limited judicial and administrative guidance available, to facts and circumstances that may be subject to differing
interpretations for federal income tax purposes.



While we have
operated and intend to continue to operate as a REIT for federal income tax purposes, if the IRS were to successfully challenge the tax status of the operating partnership or a non-corporate subsidiary as a partnership, or if we fail to qualify as a
REIT for any taxable year, we would be subject to federal income tax at regular corporate rates. Unless entitled to relief under the Internal Revenue Code, we also would be disqualified from treatment as a REIT for the four taxable years following
the disqualification year. We could also be subject to significantly increased state and local taxes. As a result, cash available for distribution would be materially reduced for each of the years involved.



In addition, we currently hold certain of our properties through a subsidiary
that has elected to be taxed as a REIT and we may in the future determine that it is in our best interests to hold one or more of our other properties through one or more subsidiaries that elect to be taxed as REITs. If any of these subsidiaries
fails to qualify as a REIT for federal income tax purposes, then we may also fail to qualify as a REIT for federal income tax purposes.



Although we intend to continue to operate as a REIT, future economic, market, legal, tax or other considerations may cause our board of trustees, with the
consent of our shareholders holding at least a majority of all the outstanding common shares, to revoke the REIT election.



Changes in tax laws could affect our REIT status.



At any time, future legislation or administrative or judicial decisions or actions could affect our tax treatment or qualification as a REIT including tax
liability, possibly with retroactive effect. While we do not anticipate any such decisions or actions, the rules dealing with federal and state income taxation are constantly under review by persons involved in the legislative process and by the IRS
and the U.S. Treasury Department. We cannot predict whether, when, in what forms, or with what effective dates, the tax laws applicable to us or an investment in us might be changed.



58



---

##### Table of Contents

##### Index to Financial Statements

Changes in market conditions could hurt the market price of our shares.



The value of our common shares depends on various market conditions, which
may change from time to time. Among the market conditions that may affect the value of our common shares are the extent of institutional investor interest in us; the reputation of REITs generally and the attractiveness of their equity securities in
comparison to other equity securities, including securities issued by other real estate companies, and fixed income securities; our financial condition and performance; and general financial market conditions. In addition, the stock market in recent
years has experienced extreme price and volume fluctuations that have often been unrelated or disproportionate to the operating performance of companies.



Increased market rates may hurt the value of our shares.



We believe that investors consider the distribution rate on REIT shares, expressed as a percentage of the price of the shares, relative to market interest
rates as an important factor in deciding whether to buy or sell the shares. If market interest rates go up, prospective purchasers of REIT shares may expect a higher distribution rate. Higher interest rates would not, however, result in more funds
for us to distribute and in fact, would likely increase our borrowing costs and might decrease our funds available for distribution. Thus, higher market interest rates could cause the market price of our common shares to decline.



We have shares available for future sale that could adversely affect the price of our
common shares.



Under our declaration of trust, our board of trustees has
the authority to do the following:



| |  |  | amend our declaration of trust, without shareholder approval, to increase or decrease the aggregate number of shares of beneficial interest or the number of shares of beneficial
interest of any class, including common shares, that we have the authority to issue; and
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | issue additional authorized but unissued common shares or preferred shares.
| | - |  | ---------------------------------------------------------------------------



The interests of our existing securityholders could be diluted if additional equity securities are issued to finance future developments, acquisitions, or
repay indebtedness. Our ability to execute our business strategy depends on our access to an appropriate blend of debt financing, including unsecured lines of credit and other forms of secured and unsecured debt, and equity financing, including
common and preferred equity.



As of December 31, 2004, we have
authorized 100,000,000 common shares, of which 54,937,160 common shares are either unissued or held in treasury for purposes other than the Key Employee Share Option Plan. In addition, we have granted options to purchase 4,509,881 common shares to
executives officers, employees and trustees, of which options to purchase 647,251 common shares remain outstanding. We have reserved a total of 3,773,585 common shares and 1,334,931 common shares for issuance upon conversion of the Series D
Preferred Shares and common units, respectively. Sales or issuances of a substantial number of common shares, or the perception that such sales could occur could adversely affect prevailing market prices of the common shares and dilute the
percentage ownership held by our shareholders.



Limited
partners of our operating partnership have the right to receive, in our or the general partners discretion, either cash or one common share, in exchange for each limited partnership unit they now hold, if and to the extent they tender such
units for redemption. As of December 31, 2004, there were 1,334,931 common units of our operating partnership outstanding and held by partners other than Prentiss Properties Trust, and, if we or the general partner elect to redeem such units for
common shares, these common units are exchangeable for 1,334,931 common shares. We are party to registration rights agreements under which we are required to register the issuance of common shares which we may issue upon the redemption by the
holders of units of limited partnership interest in our operating partnership. We can make no prediction concerning the effect that such issuance or future sales of any such common shares will have on market prices.



59



---

##### Table of Contents

##### Index to Financial Statements

Our shareholders ability to effect a change of control may be limited.



We have a shareholder rights plan.



In February 1998, we adopted a shareholder rights plan and declared a
dividend of one purchase right for each common share of beneficial interest. The purchase rights may have the effect of delaying, inhibiting or preventing a transaction or a change in control of us that might involve a premium price for the common
shares or otherwise be in the best interest of our shareholders. The purchase rights can cause substantial dilution to a person or group that acquires 10% or more of our outstanding common shares unless the purchase rights have been redeemed by our
board of trustees. However, because the purchase rights are redeemable by our board of trustees, the purchase rights should not interfere with any merger or other business combination approved by our board of trustees.



We have an ownership limitation.



In order to maintain our qualification as a REIT under the Internal Revenue
Code of 1986, as amended, no more than 50% in value of our outstanding shares of beneficial interest may be owned, directly or indirectly, by five or fewer individuals during the last half of our taxable year, other than our 1996 taxable year. To
ensure that we will not fail to qualify as a REIT, our declaration of trust authorizes our board of trustees to take such actions as are necessary and desirable to preserve our qualification as a REIT. In addition, our declaration of trust has an
ownership limitation which provides that no person may own, directly or indirectly, more than 8.5% of the number of outstanding common shares, other than Michael V. Prentiss, who currently may own up to 15% of the number of outstanding common
shares, or more than 9.8% of the number of outstanding preferred shares of beneficial interest of any series. The board of trustees, upon receipt of a ruling from the IRS, an opinion of counsel or other evidence satisfactory to our board of
trustees, may exempt a proposed transferee from the ownership limitation. The board of trustees may not grant an exemption from the ownership limitation to any proposed transferee if such exemption would result in the termination of our status as a
REIT. The ownership limitation may have the effect of delaying, inhibiting or preventing a transaction or a change in control that might involve a premium price for the common shares or otherwise be in the best interests of our shareholders.



We have a staggered board.



Our board of trustees is divided into three classes, each with a three-year
term, thus, only a portion of our board of trustees stand for election at each annual meeting. The staggered terms of trustees may reduce the possibility of a tender offer or an attempt to change control of us, even though a tender offer or change
in control might be in the best interest of our shareholders.



The board
of trustees can issue additional shares.



Our
declaration of trust authorizes our board of trustees to:



| |  |  | amend our declaration of trust, without shareholder approval, to increase or decrease the aggregate number of shares of beneficial interest or the number of shares of beneficial
interest of any class that we have the authority to issue;
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | issue additional authorized but unissued preferred or common shares; and
| | - |  | ------------------------------------------------------------------------



| |  |  | classify or reclassify any unissued common shares or preferred shares and to set the preferences, rights and other terms of such classified or unclassified shares.
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------



These provisions may have the effect of
delaying, deferring or preventing a transaction or a change in control that might involve a premium price for the common shares or otherwise be in the best interest of our shareholders.



60



---

##### Table of Contents

##### Index to Financial Statements

Conflicts of interests in our business could result in decisions not in your best interest.



Prentiss principals could have differing objectives from other shareholders upon the
sale, refinancing or prepayment of indebtedness of properties.



Messrs. Prentiss and August, our senior executive officers, and their affiliates may have unrealized taxable gain associated with their units of limited partnership interest in the operating partnership. Messrs. Prentiss and August may
suffer different and more adverse tax consequences than our other shareholders upon the sale or refinancing of properties that were contributed to the operating partnership by Messrs. Prentiss and August. Therefore, Messrs. Prentiss and August and
our other shareholders may have different objectives regarding the appropriate pricing and timing of any sale or refinancing of properties. While we, through Prentiss Properties I, Inc., the general partner of the operating partnership, have the
exclusive authority as to whether and on what terms to sell or refinance an individual property, Messrs. Prentiss and August may influence us not to sell, or refinance or prepay the indebtedness associated with properties even though such a
transaction might otherwise be to our financial advantage, or may influence us to refinance properties with a high level of debt.



Our policies with respect to conflicts of interests may not eliminate the influence of conflicts.



We have adopted policies intended to minimize conflicts of interest. For
example, our bylaws provide that all transactions in which executive officers or trustees have a conflicting interest with us may be subject to approval by a majority of our trustees that are not affiliated with any of our affiliates or by the
holders of a majority of the common shares held by disinterested shareholders. We have implemented a code of business conduct governing the conduct of all employees which further reduces the potential for conflicts of interest. There can be no
assurance that our policies will be successful in eliminating the influence of conflicts. Decisions could be made that might fail to reflect fully the interests of all our shareholders. Our declaration of trust includes a provision permitting each
individual trustee to engage in the type of business activities conducted by us without first presenting any investment opportunities to us, even though such investment opportunities may be within the scope of our investment policies.



Our board of trustees may change policies and incur debt without shareholder approval.



Our board of trustees determines our investment,
financing, borrowing and distribution policies, and our policies with respect to all other activities, including growth, capitalization and operations. Our board of trustees has adopted a policy limiting our total combined indebtedness plus our pro
rata share of joint venture debt to 50% or less of our total market capitalization, but our organizational documents do not contain any limitation on the amount of indebtedness we may incur. Although our board of trustees has no present intention to
do so, these policies may be amended or revised at any time and from time to time at the discretion of our board of trustees, limited only by various restrictions in our credit agreements, without a vote of our shareholders. Our credit agreements
limit total indebtedness to 55% of total assets and require a debt service coverage ratio of at least 2 to 1. A change in our investment, financing, borrowing and distribution policies could adversely affect our financial condition, results of
operations or the market price of our common shares.



We are dependent on
the services of Michael V. Prentiss and Thomas F. August.



We are dependent on the efforts of our chairman and chief executive officer, Messrs. Prentiss and August. The loss of their services could have an adverse effect on our operations. Each of Messrs. Prentiss and August has entered into an
employment agreement which will expire in January 2009 and May 2005, respectively. Messrs. Prentiss and August have agreed in their employment agreements that for a period of two years after they are no longer employed by us they will not enter into
employment with any company which is in a business that is competitive to our business. If this provision, or if similar provisions in other employment agreements with our other employees, is determined to not be binding on Messrs. Prentiss or
August, or any other employee, those persons would be able to enter into employment with companies which compete with us immediately after those persons ceased to be employed by us.



61



---

##### Table of Contents

##### Index to Financial Statements

We have minimum distribution requirements that could require us to incur additional debt.



To qualify as a REIT prior to 2001, we were required to distribute at least
95% of our net taxable income to our shareholders, excluding any net capital gain. As a result of the REIT Modernization Act, the distribution requirement was reduced to 90% for 2001 and future years. In addition, to avoid a 4% non-deductible excise
tax, we must also distribute annually at least the sum of the following:



| |  |  | 85% of our ordinary income for that year,
| | - |  | -----------------------------------------



| |  |  | 95% of our capital gain net income for that year, and
| | - |  | -----------------------------------------------------



| |  |  | 100% of our undistributed taxable income from prior years.
| | - |  | ----------------------------------------------------------



We have exceeded the distribution requirements in every year and we expect to comply with the distribution requirements. If unfavorable market conditions
exist, we may have to borrow funds on a short-term basis to meet the REIT distribution requirements. If such unfavorable conditions occurred, we might not be able to fund all future capital needs with income from operations, and might have to rely
on third-party sources of capital, which may or may not be available on favorable terms.



Our third-party property management, leasing, development and construction business and related services involve relationships which may be subject to early termination or a lack of control.



Through our operating partnership, Prentiss Properties Resources, Inc., and
Prentiss Properties Management, L.P., we engage in the business of management, leasing, development and construction of properties owned by third parties. Risks associated with these activities include the following:



| |  |  | related contracts, which are typically cancelable upon 30-days notice or upon specific events, including sale of the property, may be terminated by the property owner or may be lost
in connection with a sale of such property;
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | contracts may not be renewed upon expiration or may not be renewed on terms consistent with current terms; and
| | - |  | --------------------------------------------------------------------------------------------------------------



| |  |  | rental revenues upon which management, leasing and development fees are based may decline as a result of general real estate market conditions or specific market factors affecting
properties that we manage, lease or develop, resulting in decreased management, leasing or development fee income.
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



62



---

##### Table of Contents

##### Index to Financial Statements

Item 7A. Quantitative and Qualitative Disclosures About Market Risk



Our primary market risk exposure is to changes in interest rates as a result of our revolving credit facility and long-term debt. At December 31, 2004, we
had total consolidated indebtedness of approximately $1.2 billion. Our interest rate risk objective is to limit the impact of interest rate fluctuations on earnings and cash flows and to lower our overall borrowing costs. To achieve this objective,
we manage our exposure to fluctuations in market interest rates for our borrowings through the use of fixed rate debt instruments to the extent that reasonably favorable rates are obtainable with such arrangements. In addition, we may enter into
derivative financial instruments such as options, forwards, interest rate swaps, caps and floors to mitigate our interest rate risk on a related financial instrument or to effectively lock the interest rate on a portion of our variable rate debt. We
do not enter into derivative or interest rate transactions for speculative purposes. Approximately 48.6% of our outstanding consolidated debt was subject to fixed rates with a weighted average interest rate of 7.33% at December 31, 2004. Of the
remaining $613.1 million, or 51.4%, representing our variable rate debt, $395.0 million was effectively locked at an interest rate before the spread over LIBOR, of 3.88% through our interest rate swap agreements. We regularly review interest rate
exposure on our outstanding borrowings in an effort to minimize the risk of interest rate fluctuations.



The following table provides information about our financial instruments that are sensitive to changes in interest rates, including interest rate swaps
and debt obligations. For debt obligations outstanding at December 31, 2004, the table presents principal cash flows and related weighted average interest rates for the debt outstanding during the periods. For interest rate swaps, the table presents
notional amounts that expire and weighted average interest rates for in-place swaps during the period. Notional amounts are used to calculate the contractual payments to be exchanged under the contract. Weighted average variable rates are based on
30-day LIBOR as of December 31, 2004. The fair value of our fixed rate debt indicates the estimated principal amount of debt having similar debt service requirements, which could have been borrowed by us at December 31, 2004. The rate assumed in the
fair value calculation of fixed rate debt is equal to 5.50%, representing our estimated borrowing rate for fixed rate debt instruments similar in term to those outstanding at December 31, 2004. The fair value of our variable to fixed interest rate
swaps indicates the estimated amount that would have been paid by us had they been terminated at December 31, 2004.



|                          |  |                                       |        |   |      |   |        |      |  |   |         |   |  |      |         |   |            |   |         |       |  |            |         |   |  |   |         |  |   |         |  
|------------------------- |  | ------------------------------------- | ------ | - | ---- | - | ------ | ---- |  | - | ------- | - |  | ---- | ------- | - | ---------- | - | ------- | ----- |  | ---------- | ------- | - |  | - | ------- |  | - | ------- | -
|                          |  | Expected Maturity Date (in thousands) |        |   |      |   |        |     
|                          |  | 2005                                  |        |   | 2006 |   |        | 2007 |  |   | 2008    |   |  | 2009 |         |   | Thereafter |   |         | Total |  | Fair Value |        
|Liabilities               |  |                                       |        |   |      |   |        |      |  |   |         |   |  |      |         |   |            |   |         |       |  |            |         |   |  |   |         |  |   |         |  
|Long-Term Debt:           |  |                                       |        |   |      |   |        |      |  |   |         |   |  |      |         |   |            |   |         |       |  |            |         |   |  |   |         |  |   |         |  
|Fixed Rate                |  | $                                     | 52,308 |   |      | $ | 9,704  |      |  | $ | 192,182 |   |  | $    | 6,048   |   |            | $ | 59,411  |       |  | $          | 259,130 |   |  | $ | 578,783 |  | $ | 620,349 |  
|Average Interest Rate     |  |                                       | 7.33   | % |      |   | 7.51   | %    |  |   | 7.44    | % |  |      | 7.42    | % |            |   | 7.45    | %     |  |            | 7.48    | % |  |   |        |  |   |        |  
|Variable Rate             |  | $                                     | 66,000 |   |      |   |       |      |  | $ | 256,428 |   |  | $    | 100,000 |   |            | $ | 190,700 |       |  |            |        |   |  | $ | 613,128 |  | $ | 613,128 |  
|Average Interest Rate     |  |                                       | 3.65   | % |      |   | 3.63   | %    |  |   | 3.59    | % |  |      | 3.54    | % |            |   | 3.45    | %     |  |            |        |   |  |   |        |  |   |        |  
|                          |  |                                       |        |   |      |   |        |     
|Interest Rate Derivatives |  |                                       |        |   |      |   |        |      |  |   |         |   |  |      |         |   |            |   |         |       |  |            |         |   |  |   |         |  |   |         |  
|Interest Rate Swaps:      |  |                                       |        |   |      |   |        |      |  |   |         |   |  |      |         |   |            |   |         |       |  |            |         |   |  |   |         |  |   |         |  
|Variable to Fixed         |  | $                                     | 40,000 |   |      | $ | 50,000 |      |  | $ | 75,000  |   |  | $    | 150,000 |   |            | $ | 80,000  |       |  |            |        |   |  | $ | 395,000 |  | $ | (1,046  | )
|Avg. Pay Rate             |  |                                       | 3.88   | % |      |   | 3.56   | %    |  |   | 3.64    | % |  |      | 3.87    | % |            |   |        |       |  |            | 3.65    | % |  |   |        |  |   |        |  
|Avg. Receive Rate         |  |                                       | 2.40   | % |      |   | 2.40   | %    |  |   | 2.40    | % |  |      | 2.40    | % |            |   | 2.40    | %     |  |            | 2.40    | % |  |   |        |  |   |        |  



The table incorporates
only those exposures that exist as of December 31, 2004 and does not consider exposures or positions which could arise after that date. In addition, because firm commitments are not represented in the table above, the information presented therein
has limited predictive value. As a result, our ultimate realized gain or loss with respect to interest rate fluctuations will depend on the exposures that arise during future periods, prevailing interest rates, and our hedging strategies at that
time. There is inherent rollover risk for borrowings as they mature and are renewed at current market rates. At December 31, 2004, our variable rate debt outstanding was approximately $613.1 million with an average interest rate of approximately
3.65%. Exclusive of our interest rate swap agreements, if 30-day LIBOR increased 100 basis points, total interest expense would increase approximately $6.1 million. The total extent of market risk is not quantifiable or predictable because of the
variability of future interest rates and our financing requirements.



63



---

##### Table of Contents

##### Index to Financial Statements

Item 8. Financial Statements and Supplementary Data



Financial Statements and the Financial Statement Schedule appear at page F-1 to page F-47 of this Form 10-K.



Item 9. Changes in and Disagreements with Accountants on Accounting and Financial Disclosures



None



Item 9A. Controls and Procedures



Managements Report on Internal Control over Financial Reporting



Our internal control over financial reporting is a process, that under the supervision of and with the participation of our management, including our Chief Executive Officer, Chief Financial Officer and Principal
Accounting Officer, was designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. Our
internal control over financial reporting includes those policies and procedures that (i) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect our transactions and dispositions of our assets; (ii) provide
reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that our receipts and expenditures are being made only in accordance with
authorizations of our management and our trustees; and (iii) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of our assets that could have a material effect on our financial
statements.



Because of its inherent limitations, internal
control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that our controls may become inadequate because of changes in conditions, or
that the degree of compliance with the policies or procedures may deteriorate.



As management, it is our responsibility to establish and maintain adequate internal control over financial reporting. As of December 31, 2004, under the supervision and with the participation of our management,
including our Chief Executive Officer, Chief Financial Officer and Principal Accounting Officer, we evaluated the effectiveness of our internal control over financial reporting using criteria established in Internal Control  Integrated
Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO). Based on our evaluation, we concluded that the Company maintained effective internal control over financial reporting as of December 31, 2004, based
on criteria established in Internal Control - Integrated Framework issued by the COSO.



Our managements assessment of the effectiveness of the Companys internal control over financial reporting as of December 31, 2004 has been audited by PricewaterhouseCoopers LLP, an independent registered
public accounting firm, as stated in their report which appears herein.



Changes in Our Internal Control over Financial Reporting



There have been no changes in our internal control over financial reporting that occurred during the three months ended December 31, 2004 that have materially affected, or are reasonably likely to materially affect,
such internal control over financial reporting.



64



---

##### Table of Contents

##### Index to Financial Statements

Disclosure Controls and Procedures



As of December 31, 2004, under the supervision and with the participation of our management, including our Chief Executive
Officer and Chief Financial Officer, we evaluated the effectiveness of the design and operation of our disclosure controls and procedures pursuant to Securities Exchange Act Rule 15d-15. Based upon that evaluation, our Chief Executive Officer and
Chief Financial Officer concluded that our disclosure controls and procedures are effective to ensure that information required to be disclosed in our reports filed or submitted under the Exchange Act is recorded, processed, summarized and reported
within the time periods specified in the Securities and Exchange Commissions rules and forms.



PART III



Item 10. Trustees and Executive Officers of the Company



The information required by this item is incorporated by reference from our definitive proxy statement for our annual meeting of shareholders to be held on May 11, 2005.



Item 11. Executive Compensation



The information required by this item is incorporated by reference from our definitive proxy statement for our annual meeting of shareholders to be held on May 11, 2005.



Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Shareholder Matters



The information required by this item is incorporated by reference from our definitive proxy statement for our annual meeting of shareholders to be held
on May 11, 2005.



Item 13. Certain Relationships and Related Transactions



The information required by this item is incorporated by reference from our definitive proxy statement for our annual meeting of shareholders to be held on May 11, 2005.



Item 14. Principal Accountant Fees and Services



The information required by this item is incorporated by reference from our definitive proxy statement for our annual meeting of shareholders to be held on May 11, 2005.



PART IV



Item 15. Exhibits, Financial Statement Schedule and Reports on Form 8-K



|(a) | Financial Statements, Financial Statement Schedule and Exhibits
|--- | ---------------------------------------------------------------



| | (1) | Financial Statements
| | --- | --------------------



| |  | Report of Independent Registered Public Accounting Firm
| |  | -------------------------------------------------------



| |  | Consolidated Balance Sheets as of December 31, 2004 and December 31, 2003
| |  | -------------------------------------------------------------------------



| |  | Consolidated Statements of Income for the years ended December 31, 2004, 2003 and 2002
| |  | --------------------------------------------------------------------------------------



| |  | Consolidated Statements of Changes in Shareholders Equity for the years ended December 31, 2004, 2003 and 2002
| |  | ---------------------------------------------------------------------------------------------------------------



| |  | Consolidated Statements of Comprehensive Income for the years ended December 31, 2004, 2003 and 2002
| |  | ----------------------------------------------------------------------------------------------------



| |  | Consolidated Statements of Cash Flows for the years ended December 31, 2004, 2003 and 2002
| |  | ------------------------------------------------------------------------------------------



| |  | Notes to Consolidated Financial Statements
| |  | ------------------------------------------



65



---

##### Table of Contents

##### Index to Financial Statements

| | (2) | Financial Statement Schedules
| | --- | -----------------------------



| |  | Schedule II: Valuation and Qualifying Accounts
| |  | ----------------------------------------------



| |  | Schedule III: Real Estate and Accumulated Depreciation
| |  | ------------------------------------------------------



| | (3) | Exhibits
| | --- | --------



|            |  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
|----------- |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|EXHIBIT NO. |  | DESCRIPTION                                                                                                                                                                                                                                                                                                                                                                                                                                                                
|3.1         |  | Amended and Restated Declaration of Trust of the Registrant (filed as Exhibit 3.1 to our Form 10-K, filed on March 15, 2004, File No. 001-14516).                                                                                                                                                                                                                                                                                                                          
|            | 
|3.2         |  | Second Amended and Restated Bylaws of the Registrant. (filed as Exhibit 3.2 to our Quarterly Report on Form 10-Q, filed on September 30, 2004, File No. 001-14516 and incorporated by reference
herein)                                                                                                                                                                                                                                                                    
|            | 
|3.3         |  | Articles Supplementary, dated February 17, 1998, Classifying and Designating a Series of Preferred Shares of Beneficial Interest as Junior Participating Cumulative Convertible Redeemable
Preferred Shares of Beneficial Interest, Series B, and Fixing Distribution and Other Preferences and Rights of Such Shares (filed as an Exhibit to our Registration Statement on Form 8-A, filed on February 17, 1998, File No. 000-23813 and
incorporated by reference herein).
|            | 
|3.4         |  | Articles Supplementary, dated June 25, 1998, Classifying and Designating a Series of Preferred Shares of Beneficial Interest as Series B Cumulative Redeemable Perpetual Preferred Shares of
Beneficial Interest and Fixing Distribution and Other Preferences and Rights of Such Shares (filed as Exhibit 3.5 to our Form 10-Q, filed on August 12, 1998, File No. 001-14516).                                                                                            
|            | 
|3.5         |  | Articles Supplementary, dated March 20, 2001 (filed as Exhibit 3.6 to our Form 10-K, filed March 27, 2001, File No. 001-14516, and incorporated by reference herein).                                                                                                                                                                                                                                                                                                      
|            | 
|3.6         |  | Articles Supplementary Classifying and Designating a Series of Preferred Shares of Beneficial Interest as Series D Cumulative Convertible Redeemable Preferred Shares of Beneficial Interest
and Fixing Distribution and Other Preferences and Rights of such Shares, dated March 20, 2001 (filed as Exhibit 3.7 to our Form 10-K, filed March 27, 2001, File No. 001-14516, and incorporated by reference herein).                                                        
|            | 
|3.7         |  | Articles Supplementary, dated January 4, 2002 (filed as Exhibit 3.7 to our Form 10-K, filed March 27, 2002, File No. 001-14516, and incorporated by reference herein).                                                                                                                                                                                                                                                                                                     
|            | 
|3.8         |  | Articles Supplementary, dated February 24, 2004, declassifying the Series B Cumulative Redeemable Perpetual Preferred Shares (filed as Exhibit 3.10 to our Form 10-K, filed on March 15, 2004,
File No. 001-14516).                                                                                                                                                                                                                                                        
|            | 
|4.1         |  | Form of Common Share Certificate (filed as Exhibit 4.1 to our Registration Statement on Amendment No. 1 of Form S-11, File No. 333-09863, and incorporated by reference
herein).                                                                                                                                                                                                                                                                                           
|            | 
|4.2         |  | Amended and Restated Rights Agreement, dated January 22, 2002, between Prentiss Properties Trust and EquiServe Trust Company, N.A., as Rights Agent (filed as Exhibit 1 to Amendment No. 2 to
our Registration Statement on Form 8-A, filed on February 6, 2002, File No. 000-014516).                                                                                                                                                                                     



66



---

##### Table of Contents

##### Index to Financial Statements

|      |  |                                                                                                                                                                                                                                                                                                                                                   
|----- |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|4.3   |  | First Amendment dated June 26, 2002 to the Amended and Restated Rights Agreement between Prentiss Properties Trust and Equiserve Trust Company, N.A. as Rights Agent (filed as Exhibit 2 to
Amendment No. 3 to our Registration Statement on Form 8-A, filed on June 27, 2002. File No. 001-014516).                                              
|      | 
|4.4   |  | Second Amendment, dated October 21, 2003, to the Amended and Restated Rights Agreement between Prentiss Properties Trust and Equiserve Trust Company, N.A. as Rights Agent (filed as Exhibit 3
to Amendment No. 4 to our Registration Statement on Form 8-A, filed on January 26, 2004 File No. 001-014516).                                      
|      | 
|4.5   |  | Third Amendment, dated February 14, 2005, to the Amended and Restated Rights Agreement between Prentiss Properties Trust and Equiserve Trust Company, N.A. as Rights Agent (filed as Exhibit 4
to Amendment No.5 to our Registration Statement on Form 8-A, filed on February 16, 2005, File No. 001-014516 and incorporated by reference herein).
|      | 
|4.6   |  | Form of Rights Certificate (included as Exhibit A to the Rights Agreement (Exhibit 4.2)).                                                                                                                                                                                                                                                         
|      | 
|4.7   |  | Form of Series D Preferred Share Certificate (filed as Exhibit 4.4 to our Form 10-K, filed March 27, 2001, File No. 001-14516, and incorporated by reference herein).                                                                                                                                                                             
|      | 
|10.1  |  | 1996 Share Incentive Plan (filed as Exhibit 10.25 to Amendment No. 1 to our Registration Statement on Form S-11, File No. 333-09863, and incorporated by reference herein).                                                                                                                                                                       
|      | 
|10.2  |  | First Amendment, effective as of May 6, 1997, to the 1996 Share Incentive Plan (filed as Exhibit 4.6 to our Registration Statement on Form S-8, File No. 333-79623, filed on May 28, 1999, and
incorporated by reference herein).                                                                                                                 
|      | 
|10.3  |  | Second Amendment, effective as of May 5, 1998, to the 1996 Share Incentive Plan (filed as Exhibit 4.7 to our Registration Statement on Form S-8, File No. 333-79623, filed on May 28, 1999, and
incorporated by reference herein).                                                                                                                
|      | 
|10.4  |  | Third Amendment, effective as of May 9, 2001, to the 1996 Share Incentive Plan (filed as Exhibit 4.5 to our Registration Statement on Form S-8, File No. 333-68520, filed on August 28, 2001,
and incorporated by reference herein).                                                                                                              
|      | 
|10.5  |  | Amendment No. 4, effective as of October 15, 1996, to the 1996 Share Incentive Plan (filed as Exhibit 10.5 to our Form 10-Q, filed November 14, 2002, File No. 001-14516).                                                                                                                                                                        
|      | 
|10.6  |  | Amendment No. 5, effective as of October 23, 2002, to the 1996 Share Incentive Plan (filed as Exhibit 10.6 to our Form 10-Q, filed November 14, 2002, File No. 001-14516).                                                                                                                                                                        
|      | 
|10.7  |  | Sixth Amendment, effective as of May 5, 2004, to the 1996 Share Incentive Plan (filed as Exhibit 4.22 to the Registration Statement on Form S-8 filed on February 14, 2005, File No. 333-122824
and incorporated by reference herein).                                                                                                            
|      | 
|10.8  |  | Amended and Restated Trustees Share Incentive Plan, effective as of May 15, 2002 (filed as Exhibit 4.12 to our Registration Statement on Form S-8, File No. 333-97045, filed on July 24,
2002, and incorporated by reference herein).                                                                                                            
|      | 
|10.9  |  | Amendment No. 1, effective as of October 23, 2002, to the Amended and Restated Trustees Share Incentive Plan (filed as Exhibit 10.8 to our Form 10-Q, filed November 14, 2002, File No.
001-14516).                                                                                                                                              
|      | 
|10.10 |  | Amendment No. 2, effective as of May 5, 2004, to the Amended and Restated Trustees Share Incentive Plan (filed as Exhibit 4.25 to the Registration Statement on Form S-8 filed on
February 14, 2005, File No. 333-122824 and incorporated by reference herein).                                                                                  



67



---

##### Table of Contents

##### Index to Financial Statements

|      |  |                                                                                                                                                                                                                                                                                                                               
|----- |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|10.11 |  | Trustees Share Incentive Plan (filed as Exhibit 4.8 to our Registration Statement on Form S-8, File No. 333-79623, filed on May 28, 1999, and incorporated by reference
herein).                                                                                                                                              
|      | 
|10.12 |  | First Amendment, effective as of May 5, 1998, to the Trustees Share Incentive Plan (filed as Exhibit 4.9 to our Registration Statement on Form S-8, File No. 333-79623, filed on May 28,
1999, and incorporated by reference herein).                                                                                        
|      | 
|10.13 |  | Second Amendment, effective as of March 1, 1999, to the Trustees Share Incentive Plan (filed as Exhibit 4.10 to our Registration Statement on Form S-8, File No. 333-79623, filed on May
28, 1999, and incorporated by reference herein).                                                                                    
|      | 
|10.14 |  | Third Amendment, effective as of May 10, 2000, to the Trustees Share Incentive Plan (filed as Exhibit 10.8 to our Form 10-K, filed March 27, 2002, File No. 001-14516, and incorporated
by reference herein).                                                                                                                
|      | 
|10.15 |  | Form of Stock Option Agreement (filed as Exhibit 10.9 to our Form 10-K, filed March 27, 2002, File No. 001-14516, and incorporated by reference herein).                                                                                                                                                                      
|      | 
|10.16 |  | Amended and Restated Share Purchase Plan, dated as of July 1, 2000 (filed as Exhibit 10.10 to our Form 10-K, filed March 27, 2002, File No. 001-14516, and incorporated by reference
herein).                                                                                                                                 
|      | 
|10.17 |  | Amendment No. 1, effective as of October 23, 2002, to the Amended and Restated Share Purchase Plan (filed as Exhibit 10.15 to our Form 10-Q, filed November 14, 2002, File No.
001-14516).                                                                                                                                    
|      | 
|10.18 |  | Key Employee Share Option Plan (filed as Exhibit 10.11 to our Form 10-K, filed March 27, 2002, File No. 001-14516, and incorporated by reference herein).                                                                                                                                                                     
|      | 
|10.19 |  | Prentiss Properties Employee Savings Plan (filed as Exhibit 10.12 to our Form 10-K, filed March 27, 2002, File No. 001-14516, and incorporated by reference herein).                                                                                                                                                          
|      | 
|10.20 |  | Third Amended and Restated Employment Agreement, dated January 1, 2004 by and between Michael V. Prentiss and Prentiss Properties Trust. (filed as Exhibit 10.18 to our Form 10-K, filed on
March 15, 2004, File No. 001-14516).                                                                                              
|      | 
|10.21 |  | Amended and Restated Employment Agreement, dated May 10, 2000, by and between Thomas F. August and Prentiss Properties Trust (filed as Exhibit 10.21 to our Form 10-K, filed on March 27, 2001,
and incorporated herein by reference).                                                                                        
|      | 
|10.22 |  | Third Amended and Restated Agreement of Limited Partnership of Prentiss Properties Acquisition Partners, L.P., dated as of October 1, 2001 (filed as Exhibit 10.15 to our Form 10-K, filed
March 27, 2002, File No. 001-14516, and incorporated by reference herein).                                                         
|      | 
|10.23 |  | First Amendment, dated as of December 18, 2001, to the Third Amended and Restated Agreement of Limited Partnership of Prentiss Properties Acquisition Partners, L.P., dated as of December 18,
2001 (filed as Exhibit 10.16 to our Form 10-K, filed March 27, 2002, File No. 001-14516, and incorporated by reference herein).
|      | 
|10.24 |  | Second Amendment, dated as of January 3, 2002, to the Third Amended and Restated Agreement of Limited Partnership of Prentiss Properties Acquisition Partners, L.P., dated as of October 1,
2001 (filed as Exhibit 10.17 to our Form 10-K, filed March 27, 2002, File No. 001-14516, and incorporated by reference herein).   



68



---

##### Table of Contents

##### Index to Financial Statements

|      |  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
|----- |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|10.25 |  | Third Amendment to the Third Amended and Restated Agreement of Limited Partnership of Prentiss Properties Acquisition Partners, L.P. (filed as Exhibit 10.40 to our Form 10-K, filed March 27,
2002, File No. 001-14516, and incorporated by reference herein).                                                                                                                                                                                                                
|      | 
|10.26 |  | Fourth Amendment to the Third Amended and Restated Agreement of Limited Partnership of Prentiss Properties Acquisition Partners, L.P. (filed as Exhibit 10.20 to our Form 10-Q, filed August
14, 2002, File No. 001-14516).                                                                                                                                                                                                                                                    
|      | 
|10.27 |  | Fifth Amendment to the Third Amended and Restated Agreement of Limited Partnership of Prentiss Properties Acquisition Partners, L.P. (filed as Exhibit 99.1 to our Form 8-K, File No.
001-14516, filed on August 14, 2003).                                                                                                                                                                                                                                                    
|      | 
|10.28 |  | Sixth Amendment to the Third Amended and Restated Agreement of Limited Partnership of Prentiss Properties Acquisition Partners, L.P. (filed as Exhibit 10.2 to our Form 10-Q, File No.
001-14516, filed on November 12, 2003).                                                                                                                                                                                                                                                 
|      | 
|10.29 |  | Seventh Amendment to the Third Amended and Restated Agreement of Limited Partnership of Prentiss Properties Acquisition Partners, L.P. (filed as Exhibit 10.27 to our Form 10-K, filed on March
15, 2004, File No. 001-14516).                                                                                                                                                                                                                                                 
|      | 
|10.30 |  | Eighth Amendment to the Third Amended and Restated Agreement of Limited Partnership of Prentiss Properties Acquisition Partners, L.P. (filed as Exhibit 10.28 to our Form 10-K, filed on March
15, 2004, File No. 001-14516).                                                                                                                                                                                                                                                  
|      | 
|10.31 |  | Series E Cumulative Redeemable Preferred Partnership Units Repurchase Agreement, dated February 4, 2004, by and between Prentiss Properties Acquisition Partners, L.P. and Brandywine Operating
Partnership, L.P. (filed as Exhibit 10.29 to our Form 10-K, filed on March 15, 2004, File No. 001-14516).                                                                                                                                                                      
|      | 
|10.32 |  | Series B Preferred Unit Redemption Agreement, dated February 24, 2004, by and between Prentiss Properties Acquisition Partners, L.P., Belrose Realty Corporation, Belmar Realty Corporation,
Belport Realty Corporation and Belshire Realty Corporation (filed as Exhibit 10.30 to our Form 10-K, filed on March 15, 2004, File No. 001-14516).                                                                                                                                
|      | 
|10.33 |  | Credit Agreement, dated May 22, 2003, among Prentiss Properties Acquisition Partners, L.P., as Borrower, Eurohypo AG, New York Branch, as Administrative Agent, Bank One, NA, as Syndication
Agent, and other lenders as named therein, (filed as Exhibit 10.2 to our Form 10-Q, File No. 001-14516, filed on August 14, 2003).                                                                                                                                                
|      | 
|10.34 |  | Stock Purchase Agreement, dated January 1, 2003, by and between Prentiss Properties Acquisition Partners, L.P. and Ampulla LLC, a single member Limited Liability Company, owned by Michael V.
Prentiss, Chairman of the Board of Prentiss Properties Trust, (filed as Exhibit 10.3 to our Form 10-Q, File No. 001-14516, filed on August 14, 2003).                                                                                                                           
|      | 
|10.35 |  | Exchange Agreement, dated as of March 20, 2001, by and among Prentiss Properties Trust, Prentiss Properties Acquisition Partners, L.P. and Security Capital Preferred Growth Incorporated
(filed as Exhibit 10.14 to our Form 10-K, filed on March 27, 2001, and incorporated herein by reference).                                                                                                                                                                            
|      | 
|10.36 |  | Registration Rights Agreement, dated as of March 20, 2001, by and among Prentiss Properties Trust and Security Capital Preferred Growth Incorporated (filed as Exhibit 10.15 to our Form 10-K,
filed on March 27, 2001, and incorporated by reference herein).                                                                                                                                                                                                                 
|      | 
|10.37 |  | Second Amendment and Restatement of the Agreement, dated March 22, 2002, among Prentiss Properties Acquisition Partners, L.P., as Borrower, Bank One, N.A., as Administrator, Bank of America,
N.A., as Syndication Agent, Dresdner Bank, AG as Documentation Agent and each of the Lenders that are signatory therein (filed as Exhibit 10.1 to our Post-Effective Amendment No. 2 to Form S-3, File No. 333-49433, filed July 26, 2002 and
incorporated by reference herein).



69



---

##### Table of Contents

##### Index to Financial Statements

|      |  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                               
|----- |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|10.38 |  | Credit Agreement, dated March 16, 2001, among Prentiss Properties Acquisition Partners, L.P., as Borrower, Commerzbank AG, New York Branch, as Administrative Agent, Sole Arranger and Sole
Book Runner, Fleet National Bank, as Syndication Agent, LaSalle Bank National Association, as Documentation Agent and each of the Lenders named therein (filed as Exhibit 10.21 to our Form 10-K, filed March 27, 2002, File No. 001-14516, and
incorporated by reference herein).
|      | 
|10.39 |  | First Amendment, dated as of November 28, 2000, to the Credit Agreement, dated September 30, 1999, among Prentiss Properties Acquisition Partners, L.P., as Borrower, Bank One, N.A., as
Administrative Agent, Mellon Bank and Union Bank of California as co-documentation agents (filed as Exhibit 10.23 to our Form 10-K, filed March 27, 2002, File No. 001-14516, and incorporated by reference herein).                                                                 
|      | 
|10.40 |  | Second Amended and Restated Credit Agreement, dated as of February 19, 2004, by and among Prentiss Properties Acquisition Partners, L.P., Bank One, NA, Bank of America, N.A., Dresdner Bank
AG, Commerzbank AG, Societe Generale Southwest Agency and the lenders named therein (filed as Exhibit 10.38 to our Form 10-K, filed on March 15, 2004, File No. 001-14516).                                                                                                      
|      | 
|10.41 |  | Amended and Restated Credit Agreement, dated as of March 2, 2004, among Prentiss Properties Acquisition Partners, L.P. as Borrower, Eurohypo AG, New York Branch, as Sole Arranger and Sole
Book Runner, Bank One, NA as Syndication Agent, and other Lenders as named therein (filed as Exhibit 10.39 to our Form 10-Q, filed on May 1, 2004, File No. 001-14516 and incorporated by reference herein).                                                                      
|      | 
|10.42 |  | Promissory Note, dated as of June 1, 1999, by and between Prentiss Properties Limited, Inc. and Christopher M. Hipps (filed as Exhibit 10.35 to our Form 10-K, filed March 27, 2002, File No.
001-14516, and incorporated by reference herein).                                                                                                                                                                                                                               
|      | 
|10.43 |  | Promissory Note, dated as of January 1, 2002, by and between Prentiss Properties Limited, Inc. and Daniel Cushing (filed as Exhibit 10.36 to our Form 10-K, filed March 27, 2002, File No.
001-14516, and incorporated by reference herein).                                                                                                                                                                                                                                  
|      | 
|10.44 |  | Promissory Note, dated as of June 14, 2002, by and among Prentiss Properties Limited, Inc. and Daniel Cushing (filed as Exhibit 10.45 to our Form 10-K, filed March 28, 2003, File No.
001-14516, and incorporated by reference herein).                                                                                                                                                                                                                                      
|      | 
|10.45 |  | Purchase Agreement, dated February 25, 2002, by and among Prentiss Properties Trust, Prentiss Properties Acquisition Partners, L.P., Prentiss Properties I, Inc. and Salomon Smith Barney Inc.
(filed as Exhibit 10.38 to our Form 10-K, filed March 27, 2002, File No. 001-14516, and incorporated by reference herein).                                                                                                                                                     
|      | 
|10.46 |  | Registration Rights Agreement, dated February 25, 2002, by and among Prentiss Properties Trust and Salomon Smith Barney Inc. (filed as Exhibit 10.39 to our Form 10-K, filed March 27, 2002,
File No. 001-14516, and incorporated by reference herein).                                                                                                                                                                                                                       
|      | 
|10.47 |  | Sales Agreement by and between Prentiss Properties Trust and Brinson Patrick Securities Corporation, dated June 10, 2002 (filed as Exhibit 1.1 to our Post Effective Amendment No. 2 to Form
S-3, File No. 333-49433, filed on July 26, 2002).                                                                                                                                                                                                                                



70



---

##### Table of Contents

##### Index to Financial Statements

|      |  |                                                                                                                                                                                                                                                              
|----- |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|10.48 |  | Amendment to Sales Agreement by and between Prentiss Properties Trust and Brinson Patrick Securities Corporation, dated May 5, 2004 (filed as Exhibit 10.51 to our Form 10-Q, filed on May 1,
2004, File No. 001-14516 and incorporated by reference herein).
|      | 
|10.49 |  | Sales Agreement by and between Prentiss Properties Trust and Brinson Patrick Securities Corporation, dated May 28, 2004 (filed as Exhibit 1.1 to our Form S-3, File No. 333-116034, filed on
May 28, 2004).                                                  
|      | 
|10.50 |  | Amended and Restated Limited Partnership Agreement of Prentiss Office Investors, L.P., dated January 29, 2004 (filed as Exhibit 10.50 to our Form 10-K, filed on March 15, 2004, File No.
001-14516).                                                        
|      | 
|10.51 |  | Prentiss Properties Executive Choice Share Deferral Plan (filed as Exhibit 10.1 to our Form 10-Q, filed May 15, 2003, File No. 001-14516, and incorporated by reference
herein).                                                                             
|      | 
|10.52 |  | Prentiss Properties Executive Choice Deferred Compensation Plan (filed as Exhibit 10.2 to our Form 10-Q, filed May 15, 2003, File No. 001-14516, and incorporated by reference
herein).                                                                      
|      | 
|10.53 |  | Prentiss Properties Executive Choice Deferred Compensation Plan for Trustees (filed as Exhibit 10.3 to our Form 10-Q, filed May 15, 2003, File No. 001-14516, and incorporated by reference
herein).                                                         
|      | 
|10.54 |  | Prentiss Properties Executive Choice Share Deferral Plan for Trustees (filed as Exhibit 10.4 to our Form 10-Q, filed May 15, 2003, File No. 001-14516, and incorporated by reference
herein).                                                                
|      | 
|10.55 |  | Form of Indemnification Agreement entered into between Prentiss Properties Trust and Officers and Trustees of Prentiss Properties Trust (filed as Exhibit 10.53 to our Form 10-Q, filed
November 8, 2004 and incorporated by reference herein).              
|      | 
|21.1* |  | List of Subsidiaries                                                                                                                                                                                                                                         
|      | 
|23.1* |  | Consent of PricewaterhouseCoopers LLP                                                                                                                                                                                                                        
|      | 
|31.1* |  | Certification of Chief Executive Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.                                                                                                                                                          
|      | 
|31.2* |  | Certification of Chief Financial Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.                                                                                                                                                          
|      | 
|32.1* |  | Certification of Chief Executive Officer Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.                                                                                                                                                          
|      | 
|32.2* |  | Certification of Chief Financial Officer Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.                                                                                                                                                          

---

|* | Filed herewith.
|- | ---------------



71



---

##### Table of Contents

##### Index to Financial Statements

SIGNATURES



Pursuant to the
requirements of Section 13 or 15 (d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.



PRENTISS PROPERTIES TRUSTBy:

/s/ Scott W. FordhamScott W. FordhamSenior Vice President and Principal Accounting Officer




Date: March 14, 2005



Pursuant to the requirements of the Securities Exchange Act of 1934, this
report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.



|               |  |                                                                        
|-------------- |  | -----------------------------------------------------------------------
|Date           |  | Signature                                                              
|March 14, 2005 |  | /s/ Michael V. Prentiss                                                
|               |  | Michael V. Prentiss Chairman of the Board and Trustee                  
|               | 
|March 14, 2005 |  | /s/ Thomas F. August                                                   
|               |  | Thomas F. August President and Chief Executive Officer Trustee         
|               | 
|March 14, 2005 |  | /s/ Michael A. Ernst                                                   
|               |  | Michael A. Ernst Executive Vice President and Chief Financial Officer  
|               | 
|March 14, 2005 |  | /s/ Scott W. Fordham                                                   
|               |  | Scott W. Fordham Senior Vice President and Principal Accounting Officer
|               | 
|March 14, 2005 |  | /s/ Thomas J. Hynes, Jr.                                               
|               |  | Thomas J. Hynes, Jr. Trustee                                           
|               | 
|March 14, 2005 |  | /s/ Barry J.C. Parker                                                  
|               |  | Barry J.C. Parker Trustee                                              
|               | 
|March 14, 2005 |  | /s/ Dr. Leonard M. Riggs, Jr.                                          
|               |  | Dr. Leonard M. Riggs, Jr. Trustee                                      
|               | 
|March 14, 2005 |  | /s/ Ronald G. Steinhart                                                
|               |  | Ronald G. Steinhart Trustee                                            
|               | 
|March 14, 2005 |  | /s/ Lawrence A. Wilson                                                 
|               |  | Lawrence A. Wilson Trustee                                             



72



---

##### Table of Contents

##### Index to Financial Statements

PRENTISS PROPERTIES TRUST



INDEX TO
FINANCIAL STATEMENTS



|                                                                                                                |  |     
|--------------------------------------------------------------------------------------------------------------- |  | ----
|                                                                                                                |  | PAGE
|FINANCIAL STATEMENTS                                                                                            |  |     
|                                                                                                                | 
|Report of Independent Registered Public Accounting Firm                                                         |  | F-2 
|                                                                                                                | 
|Consolidated Balance Sheets as of December 31, 2004 and December 31, 2003                                       |  | F-4 
|                                                                                                                | 
|Consolidated Statements of Income for the years ended December 31, 2004, 2003 and 2002                          |  | F-5 
|                                                                                                                | 
|Consolidated Statements of Changes in Shareholders Equity for the years ended December 31, 2004, 2003 and 2002 |  | F-6 
|                                                                                                                | 
|Consolidated Statements of Comprehensive Income for the years ended December 31, 2004, 2003 and 2002            |  | F-7 
|                                                                                                                | 
|Consolidated Statements of Cash Flows for the years ended December 31, 2004, 2003 and 2002                      |  | F-8 
|                                                                                                                | 
|Notes to Consolidated Financial Statements                                                                      |  | F-9 
|                                                                                                                | 
|FINANCIAL STATEMENT SCHEDULES                                                                                   |  |     
|                                                                                                                | 
|Schedule II: Valuation and Qualifying Accounts                                                                  |  | F-44
|                                                                                                                | 
|Schedule III: Real Estate and Accumulated Depreciation                                                          |  | F-45



F-1



---

##### Table of Contents

##### Index to Financial Statements

Report of Independent Registered Public Accounting Firm



To the Board of Trustees and Shareholders

of Prentiss Properties Trust:



We have completed an integrated audit of Prentiss Properties Trusts 2004 consolidated financial statements and of its internal control
over financial reporting as of December 31, 2004 and audits of its 2003 and 2002 consolidated financial statements in accordance with the standards of the Public Company Accounting Oversight Board (United States). Our opinions, based on our audits,
are presented below.



Consolidated financial statements and financial
statement schedules



In our opinion, the consolidated financial statements
listed in the index appearing under Item 15(a)(1) present fairly, in all material respects, the financial position of Prentiss Properties Trust and its subsidiaries (the Company) at December 31, 2004 and 2003, and the results of their
operations and their cash flows for each of the three years in the period ended December 31, 2004 in conformity with accounting principles generally accepted in the United States of America. In addition, in our opinion, the financial statement
schedules listed in the index appearing under Item 15(a) (2)present fairly, in all material respects, the
information set forth therein when read in conjunction with the related consolidated financial statements. These financial statements and financial statement schedules are the responsibility of the Companys management. Our responsibility is to
express an opinion on these financial statements and financial statement schedules based on our audits. We conducted our audits of these statements in accordance with the standards of the Public Company Accounting Oversight Board (United States).
Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. An audit of financial statements includes examining, on a test basis, evidence
supporting the amounts and disclosures in the financial statements, assessing the accounting principles used and significant estimates made by management, and evaluating the overall financial statement presentation. We believe that our audits
provide a reasonable basis for our opinion.



As discussed in Note (2) to the
consolidated financial statements, effective January 1, 2003, the Company adopted the provisions of Statement of Financial Accounting Standards No. 148, Accounting for Stock-Based Compensation Transition and Disclosure, effective July 1,
2003, the Company adopted the provisions of Statement of Financial Accounting Standards No. 150, Accounting for Certain Financial Instruments with Characteristics of both Liabilities and Equity and effective January 1, 2004, the Company
adopted the provisions of FASB Interpretation No. 46R, Consolidation of Variable Interest Entities.



Internal control over financial reporting



Also, in our opinion, managements assessment, included in Managements Report on Internal Control over Financial Reporting appearing under Item 9A, that the
Company maintained effective internal control over financial reporting as of December 31, 2004 based on criteria established in Internal Control - Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway
Commission (COSO), is fairly stated, in all material respects, based on those criteria. Furthermore, in our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2004, based
on criteria established in Internal Control - Integrated Framework issued by the COSO. The Companys management is responsible for maintaining effective internal control over financial reporting and for its assessment of the
effectiveness of internal control over financial reporting. Our responsibility is to express opinions on managements assessment and on the effectiveness of the Companys internal control over financial reporting based on our audit. We
conducted our audit of internal control over financial reporting in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable
assurance about whether effective internal control over financial



F-2



---

##### Table of Contents

##### Index to Financial Statements

reporting was maintained in all material respects. An audit of internal control over financial reporting includes obtaining an understanding of internal
control over financial reporting, evaluating managements assessment, testing and evaluating the design and operating effectiveness of internal control, and performing such other procedures as we consider necessary in the circumstances. We
believe that our audit provides a reasonable basis for our opinions.



A
companys internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with
generally accepted accounting principles. A companys internal control over financial reporting includes those policies and procedures that (i) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the
transactions and dispositions of the assets of the company; (ii) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and
that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (iii) provide reasonable assurance regarding prevention or timely detection of unauthorized
acquisition, use, or disposition of the companys assets that could have a material effect on the financial statements.



Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of
effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.



|                              
|------------------------------
|/s/ PricewaterhouseCoopers LLP
|PricewaterhouseCoopers LLP    
|Dallas, Texas                 
|March 14, 2005                



F-3



---

##### Table of Contents

##### Index to Financial Statements

PRENTISS PROPERTIES TRUST

CONSOLIDATED BALANCE SHEETS



(in thousands, except share and per share amounts)



|                                                                                                                                                                                                                |  |              |           |   |      |   |           |  
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |  | ------------ | --------- | - | ---- | - | --------- | -
|                                                                                                                                                                                                                |  | December 31, |          
|                                                                                                                                                                                                                |  | 2004         |           |   | 2003 |  
|ASSETS                                                                                                                                                                                                          |  |              |           |   |      |   |           |  
|                                                                                                                                                                                                                |  |             
|Operating real estate:                                                                                                                                                                                          |  |              |           |   |      |   |           |  
|Land                                                                                                                                                                                                            |  | $            | 341,321   |   |      | $ | 325,623   |  
|Buildings and improvements                                                                                                                                                                                      |  |              | 1,789,043 |   |      |   | 1,727,056 |  
|Less: accumulated depreciation                                                                                                                                                                                  |  |              | (234,007  | ) |      |   | (210,944  | )
|                                                                                                                                                                                                                |  |              |           |   |      |   |           |  
|                                                                                                                                                                                                                |  |              | 1,896,357 |   |      |   | 1,841,735 |  
|                                                                                                                                                                                                                |  |             
|Construction in progress                                                                                                                                                                                        |  |              | 23,417    |   |      |   |          |  
|Land held for development                                                                                                                                                                                       |  |              | 59,014    |   |      |   | 47,202    |  
|Deferred charges and other assets, net                                                                                                                                                                          |  |              | 260,283   |   |      |   | 210,420   |  
|Notes receivable, net                                                                                                                                                                                           |  |              | 1,500     |   |      |   | 15,904    |  
|Accounts receivable, net                                                                                                                                                                                        |  |              | 55,772    |   |      |   | 47,412    |  
|Cash and cash equivalents                                                                                                                                                                                       |  |              | 8,586     |   |      |   | 5,945     |  
|Escrowed cash                                                                                                                                                                                                   |  |              | 9,584     |   |      |   | 11,913    |  
|Investments in securities and insurance contracts                                                                                                                                                               |  |              | 3,279     |   |      |   | 2,579     |  
|Investments in unconsolidated joint ventures                                                                                                                                                                    |  |              | 12,943    |   |      |   | 14,215    |  
|Interest rate hedges                                                                                                                                                                                            |  |              | 2,804     |   |      |   | 1,768     |  
|                                                                                                                                                                                                                |  |              |           |   |      |   |           |  
|Total assets                                                                                                                                                                                                    |  | $            | 2,333,539 |   |      | $ | 2,199,093 |  
|                                                                                                                                                                                                                |  |              |           |   |      |   |           |  
|                                                                                                                                                                                                                |  |             
|LIABILITIES AND SHAREHOLDERS EQUITY                                                                                                                                                                            |  |              |           |   |      |   |           |  
|                                                                                                                                                                                                                |  |             
|Mortgages and notes payable                                                                                                                                                                                     |  | $            | 1,191,911 |   |      | $ | 1,029,035 |  
|Interest rate hedges                                                                                                                                                                                            |  |              | 3,850     |   |      |   | 9,842     |  
|Accounts payable and other liabilities                                                                                                                                                                          |  |              | 105,304   |   |      |   | 84,366    |  
|Mandatorily redeemable preferred units                                                                                                                                                                          |  |              |          |   |      |   | 10,000    |  
|Distributions payable                                                                                                                                                                                           |  |              | 28,103    |   |      |   | 28,986    |  
|                                                                                                                                                                                                                |  |              |           |   |      |   |           |  
|Total liabilities                                                                                                                                                                                               |  |              | 1,329,168 |   |      |   | 1,162,229 |  
|                                                                                                                                                                                                                |  |              |           |   |      |   |           |  
|Minority interest in operating partnership                                                                                                                                                                      |  |              | 24,990    |   |      |   | 123,058   |  
|                                                                                                                                                                                                                |  |              |           |   |      |   |           |  
|Minority interest in real estate partnerships                                                                                                                                                                   |  |              | 35,792    |   |      |   | 1,565     |  
|                                                                                                                                                                                                                |  |              |           |   |      |   |           |  
|Commitments and contingencies                                                                                                                                                                                   |  |              |           |   |      |   |           |  
|                                                                                                                                                                                                                |  |             
|Preferred shares $.01 par value, 20,000,000 shares authorized, 3,773,585 shares issued and outstanding                                                                                                          |  |              | 100,000   |   |      |   | 100,000   |  
|Common shares $.01 par value, 100,000,000 shares authorized, 48,268,845 and 45,772,383 (includes 3,286,957 and 3,159,089 in treasury) shares
issued and outstanding at December 31, 2004 and 2003, respectively |  |              | 483       |   |      |   | 458       |  
|Additional paid-in capital                                                                                                                                                                                      |  |              | 1,020,917 |   |      |   | 942,644   |  
|Common shares in treasury, at cost, 3,286,957 and 3,159,089 shares at December 31, 2004 and 2003, respectively                                                                                                  |  |              | (82,694   | ) |      |   | (78,000   | )
|Unearned compensation                                                                                                                                                                                           |  |              | (3,386    | ) |      |   | (2,176    | )
|Accumulated other comprehensive income                                                                                                                                                                          |  |              | (302      | ) |      |   | (7,198    | )
|Distributions in excess of earnings                                                                                                                                                                             |  |              | (91,429   | ) |      |   | (43,487   | )
|                                                                                                                                                                                                                |  |              |           |   |      |   |           |  
|Total shareholders equity                                                                                                                                                                                      |  |              | 943,589   |   |      |   | 912,241   |  
|                                                                                                                                                                                                                |  |              |           |   |      |   |           |  
|Total liabilities and shareholders equity                                                                                                                                                                      |  | $            | 2,333,539 |   |      | $ | 2,199,093 |  
|                                                                                                                                                                                                                |  |              |           |   |      |   |           |  



The accompanying notes
are an integral part of these consolidated financial statements.



F-4



---

##### Table of Contents

##### Index to Financial Statements

PRENTISS PROPERTIES TRUST

CONSOLIDATED STATEMENTS OF INCOME



(in thousands, except per share amounts)



|                                                                                                                                                                                                |  |                         |         |   |      |   |         |      |  |   |         |  
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |  | ----------------------- | ------- | - | ---- | - | ------- | ---- |  | - | ------- | -
|                                                                                                                                                                                                |  | Year Ended December 31, |        
|                                                                                                                                                                                                |  | 2004                    |         |   | 2003 |   |         | 2002 | 
|Revenues:                                                                                                                                                                                       |  |                         |         |   |      |   |         |      |  |   |         |  
|Rental income                                                                                                                                                                                   |  | $                       | 356,825 |   |      | $ | 314,718 |      |  | $ | 307,487 |  
|Service business and other income                                                                                                                                                               |  |                         | 13,909  |   |      |   | 16,769  |      |  |   | 4,386   |  
|                                                                                                                                                                                                |  |                         |         |   |      |   |         |      |  |   |         |  
|                                                                                                                                                                                                |  |                         | 370,734 |   |      |   | 331,487 |      |  |   | 311,873 |  
|                                                                                                                                                                                                |  |                         |         |   |      |   |         |      |  |   |         |  
|Operating expenses:                                                                                                                                                                             |  |                         |         |   |      |   |         |      |  |   |         |  
|Property operating and maintenance                                                                                                                                                              |  |                         | 91,681  |   |      |   | 80,583  |      |  |   | 75,235  |  
|Real estate taxes                                                                                                                                                                               |  |                         | 39,406  |   |      |   | 31,274  |      |  |   | 35,119  |  
|General and administrative and personnel costs                                                                                                                                                  |  |                         | 11,803  |   |      |   | 10,988  |      |  |   | 10,361  |  
|Expenses of service business                                                                                                                                                                    |  |                         | 9,998   |   |      |   | 10,513  |      |  |   |        |  
|Depreciation and amortization                                                                                                                                                                   |  |                         | 92,315  |   |      |   | 72,483  |      |  |   | 61,944  |  
|                                                                                                                                                                                                |  |                         |         |   |      |   |         |      |  |   |         |  
|                                                                                                                                                                                                |  |                         | 245,203 |   |      |   | 205,841 |      |  |   | 182,659 |  
|                                                                                                                                                                                                |  |                         |         |   |      |   |         |      |  |   |         |  
|Other Expenses:                                                                                                                                                                                 |  |                         |         |   |      |   |         |      |  |   |         |  
|Interest expense                                                                                                                                                                                |  |                         | 68,037  |   |      |   | 67,232  |      |  |   | 64,468  |  
|Amortization of deferred financing costs                                                                                                                                                        |  |                         | 2,343   |   |      |   | 2,284   |      |  |   | 1,832   |  
|                                                                                                                                                                                                |  |                         |        
|Income from continuing operations before equity in income of unconsolidated joint ventures and unconsolidated subsidiaries, loss on investment
in securities, impairment and minority interests |  |                         | 55,151  |   |      |   | 56,130  |      |  |   | 62,914  |  
|                                                                                                                                                                                                |  |                         |        
|Equity in income of unconsolidated joint ventures and unconsolidated subsidiaries                                                                                                               |  |                         | 2,429   |   |      |   | 2,555   |      |  |   | 3,154   |  
|Loss on investment in securities                                                                                                                                                                |  |                         | (420    | ) |      |   |        |      |  |   |        |  
|Loss from impairment of mortgage loan                                                                                                                                                           |  |                         | (2,900  | ) |      |   |        |      |  |   |        |  
|Minority interests                                                                                                                                                                              |  |                         | (2,744  | ) |      |   | (10,227 | )    |  |   | (10,450 | )
|                                                                                                                                                                                                |  |                         |         |   |      |   |         |      |  |   |         |  
|Income from continuing operations                                                                                                                                                               |  |                         | 51,516  |   |      |   | 48,458  |      |  |   | 55,618  |  
|                                                                                                                                                                                                |  |                         |        
|Discontinued operations:                                                                                                                                                                        |  |                         |         |   |      |   |         |      |  |   |         |  
|Income from discontinued operations                                                                                                                                                             |  |                         | 3,354   |   |      |   | 6,034   |      |  |   | 10,966  |  
|Gain/(loss) from disposition of discontinued operations                                                                                                                                         |  |                         | 11,957  |   |      |   | (4,457  | )    |  |   | 8,430   |  
|Loss from debt defeasance related to sale of real estate                                                                                                                                        |  |                         | (5,316  | ) |      |   |        |      |  |   |        |  
|Minority interests related to discontinued operations                                                                                                                                           |  |                         | (310    | ) |      |   | (53     | )    |  |   | (733    | )
|                                                                                                                                                                                                |  |                         |         |   |      |   |         |      |  |   |         |  
|                                                                                                                                                                                                |  |                         | 9,685   |   |      |   | 1,524   |      |  |   | 18,663  |  
|                                                                                                                                                                                                |  |                         |         |   |      |   |         |      |  |   |         |  
|Income before gain on sale of land and an interest in a real estate partnership                                                                                                                 |  |                         | 61,201  |   |      |   | 49,982  |      |  |   | 74,281  |  
|                                                                                                                                                                                                |  |                         |        
|Gain on sale of land and an interest in a real estate partnership                                                                                                                               |  |                         | 1,222   |   |      |   | 9,435   |      |  |   |        |  
|                                                                                                                                                                                                |  |                         |         |   |      |   |         |      |  |   |         |  
|Net income                                                                                                                                                                                      |  | $                       | 62,423  |   |      | $ | 59,417  |      |  | $ | 74,281  |  
|Preferred dividends                                                                                                                                                                             |  |                         | (10,052 | ) |      |   | (8,452  | )    |  |   | (8,358  | )
|                                                                                                                                                                                                |  |                         |         |   |      |   |         |      |  |   |         |  
|Net income applicable to common shareholders                                                                                                                                                    |  | $                       | 52,371  |   |      | $ | 50,965  |      |  | $ | 65,923  |  
|                                                                                                                                                                                                |  |                         |         |   |      |   |         |      |  |   |         |  
|Basic earnings per common share:                                                                                                                                                                |  |                         |         |   |      |   |         |      |  |   |         |  
|Income from continuing operations applicable to common shareholders                                                                                                                             |  | $                       | 0.96    |   |      | $ | 1.23    |      |  | $ | 1.23    |  
|Discontinued operations                                                                                                                                                                         |  | $                       | 0.22    |   |      |   | 0.04    |      |  | $ | 0.49    |  
|                                                                                                                                                                                                |  |                         |         |   |      |   |         |      |  |   |         |  
|Net income applicable to common shareholders  basic                                                                                                                                            |  | $                       | 1.18    |   |      | $ | 1.27    |      |  | $ | 1.72    |  
|                                                                                                                                                                                                |  |                         |         |   |      |   |         |      |  |   |         |  
|Weighted average number of common shares outstanding  basic                                                                                                                                    |  |                         | 44,330  |   |      |   | 40,068  |      |  |   | 38,409  |  
|                                                                                                                                                                                                |  |                         |         |   |      |   |         |      |  |   |         |  
|Diluted earnings per common share:                                                                                                                                                              |  |                         |         |   |      |   |         |      |  |   |         |  
|Income from continuing operations applicable to common shareholders                                                                                                                             |  | $                       | 0.96    |   |      | $ | 1.23    |      |  | $ | 1.22    |  
|Discontinued operations                                                                                                                                                                         |  | $                       | 0.22    |   |      | $ | 0.04    |      |  | $ | 0.49    |  
|                                                                                                                                                                                                |  |                         |         |   |      |   |         |      |  |   |         |  
|Net income applicable to common shareholders  diluted                                                                                                                                          |  | $                       | 1.18    |   |      | $ | 1.27    |      |  | $ | 1.71    |  
|                                                                                                                                                                                                |  |                         |         |   |      |   |         |      |  |   |         |  
|Weighted average number of common shares and common share equivalents outstanding  diluted                                                                                                     |  |                         | 44,529  |   |      |   | 40,270  |      |  |   | 38,649  |  
|                                                                                                                                                                                                |  |                         |         |   |      |   |         |      |  |   |         |  



The accompanying notes
are an integral part of these consolidated financial statements.



F-5



---

##### Table of Contents

##### Index to Financial Statements

PRENTISS PROPERTIES TRUST

CONSOLIDATED STATEMENTS OF CHANGES IN

SHAREHOLDERS EQUITY



For the Three Years Ending December 31, 2004

(dollars in thousands, except per share data)



|                                                                |  |       |          |   |                 |   |              |  |                          |     |                         |   |           |                      |   |          |                                     |  |   |                                                          |   |  |   |         |   |  |   |          |  
|--------------------------------------------------------------- |  | ----- | -------- | - | --------------- | - | ------------ |  | ------------------------ | --- | ----------------------- | - | --------- | -------------------- | - | -------- | ----------------------------------- |  | - | -------------------------------------------------------- | - |  | - | ------- | - |  | - | -------- | -
|                                                                |  | Total |          |   | Preferredshares |   | Commonshares |  | Additionalpaid-incapital |     | Commonshares intreasury |   |           | Unearnedcompensation |   |          | Accumulatedothercomprehensiveincome |  |   | (Distributions in excess of earnings)/ retained earnings |  
|Balance at December 31, 2001                                    |  | $     | 819,800  |   |                 | $ | 100,000      |  | $                        | 421 |                         | $ | 833,314   |                      | $ | (118,228 | )                                   |  | $ | (2,556                                                   | ) |  | $ | (9,655  | ) |  | $ | 16,504   |  
|                                                                |  |       |          |   |                 |   |              |  |                          |     |                         |   |           |                      |   |          |                                     |  |   |                                                          |   |  |   |         |   |  |   |          |  
|Issuance of 1,828,260 common shares                             |  |       | 46,459   |   |                 |   |              |  |                          | 18  |                         |   | 46,441    |                      |   |          |                                     |  |   |                                                          |   |  |   |         |   |  |   |          |  
|Restricted share grants (30,600 common shares)                  |  |       |         |   |                 |   |              |  |                          |     |                         |   | 859       |                      |   |          |                                     |  |   | (859                                                     | ) |  |   |         |   |  |   |          |  
|Amortization of share grants                                    |  |       | 1,632    |   |                 |   |              |  |                          |     |                         |   |           |                      |   |          |                                     |  |   | 1,632                                                    |   |  |   |         |   |  |   |          |  
|Share grants forfeited (12,777 shares)                          |  |       |         |   |                 |   |              |  |                          |     |                         |   |           |                      |   | (304     | )                                   |  |   | 304                                                      |   |  |   |         |   |  |   |          |  
|Purchase of 494,365 treasury shares                             |  |       | (14,196  | ) |                 |   |              |  |                          |     |                         |   |           |                      |   | (14,196  | )                                   |  |   |                                                          |   |  |   |         |   |  |   |          |  
|Issuance of common shares in treasury (613,750 common shares)   |  |       | 16,535   |   |                 |   |              |  |                          |     |                         |   | 2,283     |                      |   | 14,252   |                                     |  |   |                                                          |   |  |   |         |   |  |   |          |  
|Distributions declared ($2.22 per common share)                 |  |       | (85,807  | ) |                 |   |              |  |                          |     |                         |   |           |                      |   |          |                                     |  |   |                                                          |   |  |   |         |   |  |   | (85,807  | )
|Preferred distributions declared ($2.22 per preferred share)    |  |       | (8,358   | ) |                 |   |              |  |                          |     |                         |   |           |                      |   |          |                                     |  |   |                                                          |   |  |   |         |   |  |   | (8,358   | )
|Unrealized loss on inv. in securities                           |  |       | (104     | ) |                 |   |              |  |                          |     |                         |   |           |                      |   |          |                                     |  |   |                                                          |   |  |   | (104    | ) |  |   |          |  
|Unrealized loss on interest rate hedges:                        |  |       |          |   |                 |   |              |  |                          |     |                         |   |           |                      |   |          |                                     |  |   |                                                          |   |  |   |         |   |  |   |          |  
|Unrealized loss for the period                                  |  |       | (6,587   | ) |                 |   |              |  |                          |     |                         |   |           |                      |   |          |                                     |  |   |                                                          |   |  |   | (6,587  | ) |  |   |          |  
|Reclassification adjustment for loss included in earnings       |  |       | 578      |   |                 |   |              |  |                          |     |                         |   |           |                      |   |          |                                     |  |   |                                                          |   |  |   | 578     |   |  |   |          |  
|Net Income                                                      |  |       | 74,281   |   |                 |   |              |  |                          |     |                         |   |           |                      |   |          |                                     |  |   |                                                          |   |  |   |         |   |  |   | 74,281   |  
|                                                                |  |       |          |   |                 |   |              |  |                          |     |                         |   |           |                      |   |          |                                     |  |   |                                                          |   |  |   |         |   |  |   |          |  
|Balance at December 31, 2002                                    |  |       | 844,233  |   |                 |   | 100,000      |  |                          | 439 |                         |   | 882,897   |                      |   | (118,476 | )                                   |  |   | (1,479                                                   | ) |  |   | (15,768 | ) |  |   | (3,380   | )
|                                                                |  |       |          |   |                 |   |              |  |                          |     |                         |   |           |                      |   |          |                                     |  |   |                                                          |   |  |   |         |   |  |   |          |  
|Issuance of 1,713,377 common shares                             |  |       | 45,489   |   |                 |   |              |  |                          | 18  |                         |   | 45,471    |                      |   |          |                                     |  |   |                                                          |   |  |   |         |   |  |   |          |  
|Restricted share grants (93,250 common shares)                  |  |       |         |   |                 |   |              |  |                          | 1   |                         |   | 2,432     |                      |   |          |                                     |  |   | (2,433                                                   | ) |  |   |         |   |  |   |          |  
|Amortization of share grants                                    |  |       | 1,736    |   |                 |   |              |  |                          |     |                         |   |           |                      |   |          |                                     |  |   | 1,736                                                    |   |  |   |         |   |  |   |          |  
|Common shares in deferred comp. plan                            |  |       | (2,150   | ) |                 |   |              |  |                          |     |                         |   | 16        |                      |   | (2,166   | )                                   |  |   |                                                          |   |  |   |         |   |  |   |          |  
|Purchase of 391,641 treasury shares                             |  |       | (12,098  | ) |                 |   |              |  |                          |     |                         |   |           |                      |   | (12,098  | )                                   |  |   |                                                          |   |  |   |         |   |  |   |          |  
|Issuance of common shares in treasury (2,300,000 common shares) |  |       | 66,470   |   |                 |   |              |  |                          |     |                         |   | 11,730    |                      |   | 54,740   |                                     |  |   |                                                          |   |  |   |         |   |  |   |          |  
|Distributions declared ($2.24 per common share)                 |  |       | (91,071  | ) |                 |   |              |  |                          |     |                         |   |           |                      |   |          |                                     |  |   |                                                          |   |  |   |         |   |  |   | (91,071  | )
|Preferred distributions declared ($2.24 per preferred share)    |  |       | (8,453   | ) |                 |   |              |  |                          |     |                         |   |           |                      |   |          |                                     |  |   |                                                          |   |  |   |         |   |  |   | (8,453   | )
|Unrealized loss on inv. in securities                           |  |       | (83      | ) |                 |   |              |  |                          |     |                         |   |           |                      |   |          |                                     |  |   |                                                          |   |  |   | (83     | ) |  |   |          |  
|Share options expensed                                          |  |       | 98       |   |                 |   |              |  |                          |     |                         |   | 98        |                      |   |          |                                     |  |   |                                                          |   |  |   |         |   |  |   |          |  
|Unrealized gain on interest rate hedges:                        |  |       |          |   |                 |   |              |  |                          |     |                         |   |           |                      |   |          |                                     |  |   |                                                          |   |  |   |         |   |  |   |          |  
|Unrealized gain for the period                                  |  |       | 8,390    |   |                 |   |              |  |                          |     |                         |   |           |                      |   |          |                                     |  |   |                                                          |   |  |   | 8,390   |   |  |   |          |  
|Reclassification adjustment for loss included in earnings       |  |       | 263      |   |                 |   |              |  |                          |     |                         |   |           |                      |   |          |                                     |  |   |                                                          |   |  |   | 263     |   |  |   |          |  
|Net income                                                      |  |       | 59,417   |   |                 |   |              |  |                          |     |                         |   |           |                      |   |          |                                     |  |   |                                                          |   |  |   |         |   |  |   | 59,417   |  
|                                                                |  |       |          |   |                 |   |              |  |                          |     |                         |   |           |                      |   |          |                                     |  |   |                                                          |   |  |   |         |   |  |   |          |  
|Balance at December 31, 2003                                    |  |       | 912,241  |   |                 |   | 100,000      |  |                          | 458 |                         |   | 942,644   |                      |   | (78,000  | )                                   |  |   | (2,176                                                   | ) |  |   | (7,198  | ) |  |   | (43,487  | )
|                                                                |  |       |          |   |                 |   |              |  |                          |     |                         |   |           |                      |   |          |                                     |  |   |                                                          |   |  |   |         |   |  |   |          |  
|Issuance of 2,399,012 common shares                             |  |       | 72,964   |   |                 |   |              |  |                          | 24  |                         |   | 72,940    |                      |   |          |                                     |  |   |                                                          |   |  |   |         |   |  |   |          |  
|Restricted share grants (97,450 common shares)                  |  |       |         |   |                 |   |              |  |                          | 1   |                         |   | 3,344     |                      |   |          |                                     |  |   | (3,345                                                   | ) |  |   |         |   |  |   |          |  
|Amortization of share grants                                    |  |       | 2,006    |   |                 |   |              |  |                          |     |                         |   |           |                      |   |          |                                     |  |   | 2,006                                                    |   |  |   |         |   |  |   |          |  
|Share grants forfeited (4,000 shares)                           |  |       | 8        |   |                 |   |              |  |                          |     |                         |   |           |                      |   | (129     | )                                   |  |   | 129                                                      |   |  |   |         |   |  |   | 8        |  
|Common shares in deferred comp. plan                            |  |       | 82       |   |                 |   |              |  |                          |     |                         |   | 86        |                      |   | (4       | )                                   |  |   |                                                          |   |  |   |         |   |  |   |          |  
|Purchase of 125,963 treasury shares                             |  |       | (4,561   | ) |                 |   |              |  |                          |     |                         |   |           |                      |   | (4,561   | )                                   |  |   |                                                          |   |  |   |         |   |  |   |          |  
|Redemption of Series B Preferred Units                          |  |       |         |   |                 |   |              |  |                          |     |                         |   | 1,600     |                      |   |          |                                     |  |   |                                                          |   |  |   |         |   |  |   | (1,600   | )
|Distributions declared ($2.24 per common share)                 |  |       | (100,320 | ) |                 |   |              |  |                          |     |                         |   |           |                      |   |          |                                     |  |   |                                                          |   |  |   |         |   |  |   | (100,320 | )
|Preferred distributions declared ($2.24 per preferred share)    |  |       | (8,453   | ) |                 |   |              |  |                          |     |                         |   |           |                      |   |          |                                     |  |   |                                                          |   |  |   |         |   |  |   | (8,453   | )
|Unrealized gain on inv. in securities                           |  |       | 191      |   |                 |   |              |  |                          |     |                         |   |           |                      |   |          |                                     |  |   |                                                          |   |  |   | 191     |   |  |   |          |  
|Share options expensed                                          |  |       | 303      |   |                 |   |              |  |                          |     |                         |   | 303       |                      |   |          |                                     |  |   |                                                          |   |  |   |         |   |  |   |          |  
|Unrealized gain on interest rate hedges                         |  |       | 6,705    |   |                 |   |              |  |                          |     |                         |   |           |                      |   |          |                                     |  |   |                                                          |   |  |   | 6,705   |   |  |   |          |  
|Net income                                                      |  |       | 62,423   |   |                 |   |              |  |                          |     |                         |   |           |                      |   |          |                                     |  |   |                                                          |   |  |   |         |   |  |   | 62,423   |  
|                                                                |  |       |          |   |                 |   |              |  |                          |     |                         |   |           |                      |   |          |                                     |  |   |                                                          |   |  |   |         |   |  |   |          |  
|Balance at December 31, 2004                                    |  | $     | 943,589  |   |                 | $ | 100,000      |  | $                        | 483 |                         | $ | 1,020,917 |                      | $ | (82,694  | )                                   |  | $ | (3,386                                                   | ) |  | $ | (302    | ) |  | $ | (91,429  | )
|                                                                |  |       |          |   |                 |   |              |  |                          |     |                         |   |           |                      |   |          |                                     |  |   |                                                          |   |  |   |         |   |  |   |          |  



The accompanying notes
are an integral part of these consolidated financial statements.



F-6



---

##### Table of Contents

##### Index to Financial Statements

PRENTISS PROPERTIES TRUST

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME



(dollars in thousands)



|                                                            |  |                         |        |      |   |        |      |  |   |        |  
|----------------------------------------------------------- |  | ----------------------- | ------ | ---- | - | ------ | ---- |  | - | ------ | -
|                                                            |  | Year Ended December 31, |       
|                                                            |  | 2004                    |        | 2003 |   |        | 2002 | 
|Net income                                                  |  | $                       | 62,423 |      | $ | 59,417 |      |  | $ | 74,281 |  
|                                                            |  |                         |        |      |   |        |      |  |   |        |  
|Unrealized gains and losses on securities:                  |  |                         |        |      |   |        |      |  |   |        |  
|Unrealized gains/(losses) arising during the period         |  |                         | 191    |      |   | (83    | )    |  |   | (104   | )
|Unrealized gains/(losses) on interest rate hedges:          |  |                         |        |      |   |        |      |  |   |        |  
|Unrealized gains/(losses) arising during the period         |  |                         | 6,705  |      |   | 8,390  |      |  |   | (6,587 | )
|Reclassification adjustment for losses included in earnings |  |                         |       |      |   | 263    |      |  |   | 578    |  
|                                                            |  |                         |        |      |   |        |      |  |   |        |  
|Other comprehensive income                                  |  |                         | 6,896  |      |   | 8,570  |      |  |   | (6,113 | )
|                                                            |  |                         |        |      |   |        |      |  |   |        |  
|Comprehensive income                                        |  | $                       | 69,319 |      | $ | 67,987 |      |  | $ | 68,168 |  
|                                                            |  |                         |        |      |   |        |      |  |   |        |  



The accompanying notes
are an integral part of these consolidated financial statements.



F-7



---

##### Table of Contents

##### Index to Financial Statements

PRENTISS PROPERTIES TRUST

CONSOLIDATED STATEMENTS OF CASH FLOWS

(dollars in thousands)



|                                                                                        |  |                         |          |   |      |   |          |      |  |   |          |  
|--------------------------------------------------------------------------------------- |  | ----------------------- | -------- | - | ---- | - | -------- | ---- |  | - | -------- | -
|                                                                                        |  | Year Ended December 31, |         
|                                                                                        |  | 2004                    |          |   | 2003 |   |          | 2002 | 
|Cash Flows from Operating Activities:                                                   |  |                         |          |   |      |   |          |      |  |   |          |  
|Net income                                                                              |  | $                       | 62,423   |   |      | $ | 59,417   |      |  | $ | 74,281   |  
|Adjustments to reconcile net income to net cash provided by operating activities:       |  |                         |          |   |      |   |          |      |  |   |          |  
|Minority interests                                                                      |  |                         | 3,054    |   |      |   | 10,280   |      |  |   | 11,183   |  
|(Gain)/loss from disposition of discontinued operations                                 |  |                         | (11,957  | ) |      |   | 4,457    |      |  |   | (8,430   | )
|Gain on sale of land and an interest in real estate partnership                         |  |                         | (1,222   | ) |      |   | (9,435   | )    |  |   |         |  
|Loss on impairment of discontinued operations                                           |  |                         |         |   |      |   | 1,792    |      |  |   | 2,855    |  
|Loss on debt defeasance                                                                 |  |                         | 5,316    |   |      |   |         |      |  |   |         |  
|Loss on investment in securities                                                        |  |                         | 420      |   |      |   |         |      |  |   |         |  
|Loss on impairment of mortgage loan                                                     |  |                         | 2,900    |   |      |   |         |      |  |   |         |  
|Provision for doubtful accounts                                                         |  |                         | 168      |   |      |   | 3,563    |      |  |   | 5,428    |  
|Depreciation and amortization                                                           |  |                         | 95,988   |   |      |   | 80,256   |      |  |   | 73,457   |  
|Amortization of deferred financing costs                                                |  |                         | 2,343    |   |      |   | 2,284    |      |  |   | 1,832    |  
|Earnings in excess of distributions from joint ventures and unconsolidated subsidiaries |  |                         | (88      | ) |      |   |         |      |  |   | (162     | )
|Non-cash compensation                                                                   |  |                         | 3,370    |   |      |   | 2,687    |      |  |   | 1,757    |  
|Reclassification of accumulated other comprehensive income                              |  |                         |         |   |      |   | 263      |      |  |   | 578      |  
|Gain on derivative financial instrument                                                 |  |                         | (323     | ) |      |   | (312     | )    |  |   | (301     | )
|Changes in assets and liabilities:                                                      |  |                         |          |   |      |   |          |      |  |   |          |  
|Deferred charges and other assets                                                       |  |                         | (7,148   | ) |      |   | (2,434   | )    |  |   | (3,585   | )
|Accounts receivable                                                                     |  |                         | (11,854  | ) |      |   | (11,319  | )    |  |   | (4,081   | )
|Escrowed cash                                                                           |  |                         | 2,924    |   |      |   | (1,430   | )    |  |   | 3,191    |  
|Other payables/receivables (affiliates)                                                 |  |                         |         |   |      |   |         |      |  |   | 2,971    |  
|Accounts payable and other liabilities                                                  |  |                         | 11,935   |   |      |   | (6,444   | )    |  |   | (363     | )
|                                                                                        |  |                         |          |   |      |   |          |      |  |   |          |  
|Net cash provided by operating activities                                               |  |                         | 158,249  |   |      |   | 133,625  |      |  |   | 160,611  |  
|                                                                                        |  |                         |          |   |      |   |          |      |  |   |          |  
|Cash Flows from Investing Activities:                                                   |  |                         |          |   |      |   |          |      |  |   |          |  
|Development/redevelopment of real estate                                                |  |                         | (15,347  | ) |      |   | (11,002  | )    |  |   | (26,294  | )
|Purchase of real estate                                                                 |  |                         | (241,451 | ) |      |   | (181,706 | )    |  |   | (113,985 | )
|Purchase of mortgage loan                                                               |  |                         |         |   |      |   |         |      |  |   | (47,000  | )
|Capitalized expenditures for in-service properties                                      |  |                         | (54,396  | ) |      |   | (35,236  | )    |  |   | (27,187  | )
|Proceeds from the sale of real estate                                                   |  |                         | 151,023  |   |      |   | 85,116   |      |  |   | 54,631   |  
|Distributions in excess of earnings of joint ventures and unconsolidated subsidiaries   |  |                         |         |   |      |   | 315      |      |  |   |         |  
|Proceeds from the sale of joint venture interest in a real estate partnership           |  |                         | 69,338   |   |      |   |         |      |  |   |         |  
|Proceeds from repayment of notes receivable                                             |  |                         | 11,504   |   |      |   |         |      |  |   |         |  
|Purchase of interest in Prentiss Properties Resources, Inc.                             |  |                         |         |   |      |   | (67      | )    |  |   |         |  
|Cash from consolidation of Prentiss Properties Resources, Inc.                          |  |                         |         |   |      |   | 461      |      |  |   |         |  
|Proceeds from the sale of investments                                                   |  |                         | 1,107    |   |      |   |         |      |  |   |         |  
|Investments in securities and insurance contracts                                       |  |                         | (782     | ) |      |   | (185     | )    |  |   | (670     | )
|                                                                                        |  |                         |          |   |      |   |          |      |  |   |          |  
|Net cash used in investing activities                                                   |  |                         | (79,004  | ) |      |   | (142,304 | )    |  |   | (160,505 | )
|                                                                                        |  |                         |          |   |      |   |          |      |  |   |          |  
|Cash Flows from Financing Activities:                                                   |  |                         |          |   |      |   |          |      |  |   |          |  
|Net proceeds from sale of common shares                                                 |  |                         | 66,496   |   |      |   | 100,801  |      |  |   | 52,558   |  
|Redemption of preferred units                                                           |  |                         | (105,000 | ) |      |   |         |      |  |   | (50,535  | )
|Repurchase of operating partnership units                                               |  |                         | (891     | ) |      |   |         |      |  |   |         |  
|Purchase of treasury shares                                                             |  |                         |         |   |      |   |         |      |  |   | (2,472   | )
|Capital contribution from consolidated joint ventures                                   |  |                         | 26,874   |   |      |   | 190      |      |  |   | 1,488    |  
|Distributions paid to limited partners                                                  |  |                         | (63,397  | ) |      |   | (3,347   | )    |  |   | (3,320   | )
|Distributions paid to common shareholders                                               |  |                         | (98,959  | ) |      |   | (89,020  | )    |  |   | (83,776  | )
|Distributions paid to preferred shareholders                                            |  |                         | (8,452   | ) |      |   | (8,452   | )    |  |   | (8,264   | )
|Distributions paid to preferred unitholders                                             |  |                         | (3,176   | ) |      |   | (8,636   | )    |  |   | (9,843   | )
|Payment of debt defeasance cost on debt extinguishment                                  |  |                         | (5,316   | ) |      |   |         |      |  |   |         |  
|Proceeds from mortgages and notes payable                                               |  |                         | 824,161  |   |      |   | 566,685  |      |  |   | 559,800  |  
|Repayments of mortgages and notes payable                                               |  |                         | (708,944 | ) |      |   | (548,677 | )    |  |   | (456,507 | )
|                                                                                        |  |                         |          |   |      |   |          |      |  |   |          |  
|Net cash (used in)/provided by financing activities                                     |  |                         | (76,604  | ) |      |   | 9,544    |      |  |   | (871     | )
|                                                                                        |  |                         |          |   |      |   |          |      |  |   |          |  
|Net change in cash and cash equivalents                                                 |  |                         | 2,641    |   |      |   | 865      |      |  |   | (765     | )
|Cash and cash equivalents, beginning of year                                            |  |                         | 5,945    |   |      |   | 5,080    |      |  |   | 5,845    |  
|                                                                                        |  |                         |          |   |      |   |          |      |  |   |          |  
|Cash and cash equivalents, end of period                                                |  | $                       | 8,586    |   |      | $ | 5,945    |      |  | $ | 5,080    |  
|Supplemental Cash Flow Information:                                                     |  |                         |          |   |      |   |          |      |  |   |          |  
|Cash paid for interest                                                                  |  | $                       | 69,127   |   |      | $ | 69,094   |      |  | $ | 68,753   |  
|                                                                                        |  |                         |          |   |      |   |          |      |  |   |          |  



The accompanying notes
are an integral part of these consolidated financial statements.



F-8



---

##### Table of Contents

##### Index to Financial Statements

PRENTISS PROPERTIES TRUST

NOTES TO CONSOLIDATED

FINANCIAL STATEMENTS



(1) The Organization and 2004 Transactions



Organization



We are a self-administered and self-managed Maryland REIT
that acquires, owns, manages, leases, develops and builds primarily office properties throughout the United States. We are self-administered in that we provide our own administrative services, such as accounting, tax and legal, through our own
employees. We are self-managed in that we provide all the management and maintenance services that our properties require through our own employees, such as, property managers, leasing professionals and engineers. We operate principally through our
operating partnership, Prentiss Properties Acquisition Partners, L.P., and its subsidiaries, and two management service companies, Prentiss Properties Resources, Inc. and its subsidiaries and Prentiss Properties Management, L.P. The ownership of the
operating partnership was as follows at December 31, 2004 and 2003:



|                          |  |              |  |        |   |  |                                     |  |        |  
|------------------------- |  | ------------ |  | ------ | - |  | ----------------------------------- |  | ------ | -
|2004 (units in thousands) |  | Common Units |  | %      |   |  | Series DConvertible Preferred Units |  | %      |  
|Prentiss Properties Trust |  | 45,063       |  | 97.12  | % |  | 3,774                               |  | 100.00 | %
|Third Parties             |  | 1,335        |  | 2.88   | % |  |                                    |  | 0.00   | %
|                          |  |              |  |        |   |  |                                     |  |        |  
|Total                     |  | 46,398       |  | 100.00 | % |  | 3,774                               |  | 100.00 | %
|                          |  |              |  |        |   |  |                                     |  |        |  



|                          |  |              |  |        |   |  |                                     |  |        |   |  |                          |  |        |   |  |                          |  |        |  
|------------------------- |  | ------------ |  | ------ | - |  | ----------------------------------- |  | ------ | - |  | ------------------------ |  | ------ | - |  | ------------------------ |  | ------ | -
|2003 (units in thousands) |  | Common Units |  | %      |   |  | Series DConvertible Preferred Units |  | %      |   |  | Series B Preferred Units |  | %      |   |  | Series E Preferred Units |  | %      |  
|Prentiss Properties Trust |  | 42,696       |  | 96.66  | % |  | 3,774                               |  | 100.00 | % |  |                         |  | 0.00   | % |  |                         |  | 0.00   | %
|Third Parties             |  | 1,475        |  | 3.34   | % |  |                                    |  | 0.00   | % |  | 1,900                    |  | 100.00 | % |  | 200                      |  | 100.00 | %
|                          |  |              |  |        |   |  |                                     |  |        |   |  |                          |  |        |   |  |                          |  |        |  
|Total                     |  | 44,171       |  | 100.00 | % |  | 3,774                               |  | 100.00 | % |  | 1,900                    |  | 100.00 | % |  | 200                      |  | 100.00 | %
|                          |  |              |  |        |   |  |                                     |  |        |   |  |                          |  |        |   |  |                          |  |        |  



Our primary business
is the ownership and operation of office and industrial properties throughout the United States. Our organization which includes approximately 475 employees consists of a corporate office located in Dallas, Texas and five regional offices each of
which operates under the guidance of a member of our senior management team. The following are the 10 markets in which our properties are located with the first market being the location of each regional office:



|                    |  |                                  
|------------------- |  | ---------------------------------
|Region              |  | Market                           
|Mid-Atlantic        |  | Metropolitan Washington, DC      
|Midwest             |  | Chicago, Suburban Detroit        
|Southwest           |  | Dallas/Fort Worth, Austin, Denver
|Northern California |  | Oakland, Silicon Valley          
|Southern California |  | San Diego, Los Angeles           



As of December 31,
2004, we owned interests in a diversified portfolio of 124 primarily suburban Class A office and suburban industrial properties, the results of which of are consolidated with and into the accounts of operating partnership, as follows:



|                      |  |                     |  |                               
|--------------------- |  | ------------------- |  | ------------------------------
|                      |  | Number of Buildings |  | Net Rentable Square Feet(1)(2)
|                      |  |                     |  | (in millions)                 
|Office properties     |  | 97                  |  | 16.0                          
|Industrial properties |  | 27                  |  | 2.2                           
|                      |  |                     |  |                               
|Total                 |  | 124                 |  | 18.2                          
|                      |  |                     |  |                               

---

|(1) | Throughout this form 10-K, we use the term net rentable square feet and define the term as
the area of a property for which a tenant is required to pay rent, which includes the actual rentable area plus a portion of the common areas of the property allocated to a tenant. Our calculation of the net rentable square feet as included herein
is unaudited.
|--- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(2) | Our consolidated joint venture properties contain approximately 989,000 net rentable square
feet, of which the minority interest holders pro rata share is 485,000 net rentable feet. Also, we have investments in unconsolidated joint venture properties which consist of 1.6 million net rentable square feet, our pro-rata share of which
totals 669,000 net rentable square feet.
|--- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



F-9



---

##### Table of Contents

##### Index to Financial Statements

PRENTISS PROPERTIES TRUST

NOTES TO CONSOLIDATED

FINANCIAL STATEMENTS



In addition to managing properties that we own, we manage approximately 9.8
million net rentable square feet in office, industrial and other properties for third parties.



We have determined that our reportable segments are those that are based on our method of internal reporting, which disaggregates our business based upon our five geographic regions. As of December 31, 2004, our
reportable segments include (1) Mid-Atlantic; (2) Midwest; (3) Southwest; (4) Northern California; and (5) Southern California.



2004 Transactions



Joint Venture Arrangement



On January 22, 2004, Prentiss Office Investors, L.P. was established to acquire office properties in our core markets of Washington D.C./Northern Virginia, Chicago, Dallas/Ft. Worth, Northern California and San
Diego/Orange County. The partnership was initially wholly owned by the operating partnership and its affiliates and was seeded by the transfer of several recent acquisitions including, 2291 Wood Oak Drive a single office building containing
approximately 228,000 net rentable square feet located in Herndon, Virginia, Corporate Lakes III a single office building containing approximately 124,000 net rentable square feet located in Chicago, Illinois and seven office buildings containing
approximately 370,000 net rentable square feet located in Carlsbad, California.



Pursuant to a joint venture agreement, effective February 1, 2004, Stichting Pensioenfonds ABP, a Netherlands based pension fund and unrelated third party, acquired a 49% limited partnership interest in Prentiss
Office Investors, L.P. for proceeds totaling $68.9 million. As a result of the transaction, we recorded a gain on sale of $1.2 million. The joint venture is consolidated with and into the accounts of the operating partnership. Proceeds from the
transaction were used to repay a portion of the outstanding borrowings under our revolving credit facility.



Acquisitions



During the year ended December 31, 2004, we acquired, from unrelated third parties, 8 office buildings totaling approximately 2.3 million net rentable square feet as detailed below:



|                           |  |                 |  |                  |  |                      |  |                     |  |                                            |  |                                    |      
|-------------------------- |  | --------------- |  | ---------------- |  | -------------------- |  | ------------------- |  | ------------------------------------------ |  | ---------------------------------- | -----
|Acquired Properties        |  | Segment         |  | Market           |  | Month of Acquisition |  | Number of Buildings |  | Net Rentable Square Feet(1) (in thousands) |  | Acquisition Price(2) (in millions)
|Cityplace Center           |  | Southwest       |  | Dallas/Ft. Worth |  | April 2004           |  | 1                   |  | 1,296                                      |  | $                                  | 123.3
|The Bluffs(3)              |  | Southern Calif. |  | San Diego        |  | May 2004             |  | 1                   |  | 69                                         |  |                                    | 17.7 
|5500 Great America Parkway |  | Northern Calif. |  | Silicon Valley   |  | May 2004             |  | 3                   |  | 306                                        |  |                                    | 34.8 
|2101 Webster               |  | Northern Calif. |  | Oakland          |  | Oct. 2004            |  | 1                   |  | 459                                        |  |                                    | 65.7 
|Lakeside I & II(3)         |  | Midwest         |  | Chicago          |  | Oct. 2004            |  | 2                   |  | 198                                        |  |                                    | 32.6 
|                           |  |                 |  |                  |  |                      |  |                     |  |                                            |  |                                    |      
|                           |  |                 |  |                  |  |                      |  | 8                   |  | 2,328                                      |  | $                                  | 274.1
|                           |  |                 |  |                  |  |                      |  |                     |  |                                            |  |                                    |      

---

|(1) | Net rentable square feet defines the area of a property for which a tenant is required to pay
rent, which includes the actual rentable area plus a portion of the common areas of the property allocated to a tenant.
|--- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(2) | The acquisitions were funded with proceeds from our revolving credit facility, debt
assumption, property sales and proceeds generated from the sale of common shares.
|--- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(3) | Acquisitions were acquired by Prentiss Office Investors, L.P., the joint venture described
above. The net rentable square feet and acquisition price is presented at 100%. Each partner contributed their pro rata share of the purchase price of each property to Prentiss Office Investors, L.P. prior to acquisition.
|--- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



F-10



---

##### Table of Contents

##### Index to Financial Statements

PRENTISS PROPERTIES TRUST

NOTES TO CONSOLIDATED

FINANCIAL STATEMENTS



On July 15, 2004, we acquired from an unrelated third party, approximately
7.7 acres of land in Del Mar, California for gross consideration of $15.1 million. The acquisition was funded with proceeds from our revolving credit facility.



Dispositions



During the year ended December 31, 2004, we sold, to unrelated third parties, 4 industrial buildings, containing approximately 91,000 net rentable square
feet and 8 office buildings containing approximately 1.2 million net rentable square feet as detailed below:



|                            |  |                 |  |            |  |                      |  |                     |  |                                         |  |                                 |      
|--------------------------- |  | --------------- |  | ---------- |  | -------------------- |  | ------------------- |  | --------------------------------------- |  | ------------------------------- | -----
|Properties Sold             |  | Segment         |  | Market     |  | Month of Disposition |  | Number of Buildings |  | Net Rentable Square Feet (in thousands) |  | Gross Proceeds(1) (in millions)
|Natomas Corporate Center    |  | Northern Calif. |  | Sacramento |  | May 2004             |  | 6                   |  | 566                                     |  | $                               | 80.7 
|Shadowridge Business Center |  | Southern Calif. |  | San Diego  |  | July 2004            |  | 4                   |  | 91                                      |  |                                 | 10.2 
|One Westchase Center        |  | Southwest       |  | Houston    |  | Aug. 2004            |  | 1                   |  | 466                                     |  |                                 | 44.2 
|1800 Sherman Avenue         |  | Midwest         |  | Chicago    |  | Nov. 2004            |  | 1                   |  | 136                                     |  |                                 | 18.2 
|                            |  |                 |  |            |  |                      |  |                     |  |                                         |  |                                 |      
|                            |  |                 |  |            |  |                      |  | 12                  |  | 1,259                                   |  | $                               | 153.3
|                            |  |                 |  |            |  |                      |  |                     |  |                                         |  |                                 |      

---

|(1) | We recognized a $12.0 million gain on the sale of the properties. Proceeds from the property
sales were used to repay a portion of the outstanding borrowings under our revolving credit facility.
|--- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



Development



During the year ended December 31, 2004, we transitioned a parcel of land from land held for development to construction in progress. The construction,
which has an estimated total project cost of $48.1 million, includes a two building office project located in Del Mar, California and will contain approximately 158,000 net rentable square feet upon completion. The project which is currently 50%
pre-leased is owned by Prentiss/Collins Del Mar Heights, LLC, a joint venture, owned 70% by our operating partnership and its affiliates and 30% by Collins Corporate Center, LLC, an unrelated third party. The accounts of Prentiss/Collins Del Mar
Heights, LLC are consolidated with and into the accounts of our operating partnership. The December 31, 2004 carrying amount of this development project was $23.4 million.



Financing



On February 19, 2004, we renewed our $300 million revolving credit facility, including an extension of the maturity date from May 23, 2005 to February 19,
2007. The interest rate on the facility will fluctuate based on our overall leverage with a range between 30-day LIBOR plus 112.5 basis points and 30-day LIBOR plus 160 basis points. The pricing on the renewed facility represents a 12.5 basis point
to 15.0 basis point pricing reduction across the leverage grid. The facility was substantially oversubscribed with initial commitments of $370 million. Banking participants in the revolving credit facility include Bank One as Administrative Agent;
Bank of America as Syndication Agent; Commerzbank, EuroHypo and Societe General as Documentation Agents; PNC Bank, Sun Trust and Union Bank of California as Co-Agents; and Comerica Bank, KeyBank, Mellon Bank, and SouthTrust Bank as Lenders. On June
25, 2004, we exercised an accordion feature within our revolving credit facility expanding the facilitys overall borrowing capacity from $300 million to $375 million. Other terms of the facility remain unchanged.



On March 2, 2004, we negotiated an interest rate reduction on our $75.0
million unsecured term loan with Commerzbank AG. The interest rate which is based on overall leverage was reduced from 30-day LIBOR plus 125 to 175 basis points to 30-day LIBOR plus 112.5 to 160 basis points. In addition, the term loan which had an
original maturity date of March 15, 2006 was extended to March 15, 2009.



F-11



---

##### Table of Contents

##### Index to Financial Statements

PRENTISS PROPERTIES TRUST

NOTES TO CONSOLIDATED

FINANCIAL STATEMENTS



On May 20, 2004, in connection with a real estate sales transaction, we
exercised our right to complete a voluntary defeasance of the mortgage loan collateralized by the sold properties. Pursuant to the defeasance, we transferred the mortgage loan with an outstanding principal balance of $35.8 million to an unrelated
successor entity. The buyer of the properties transferred proceeds totaling $41.1 million representing the proceeds necessary to acquire U.S. treasuries sufficient to cover the debt service of the mortgage loan from the defeasance date through
maturity of the loan. We recognized a loss from debt defeasance of $5.3 million during the period which we included in discontinued operations. The amount used to repay the mortgage loan was funded with proceeds received from the properties sold.



On July 23, 2004, Prentiss Office Investors, L.P., completed a
five-year, $10.7 million loan collateralized by a 69,000 net rentable square foot office building in San Diego, California. The loan, which is interest only until maturity, has an interest rate that fluctuates between 130 and 150 basis points over
30-day LIBOR depending on the propertys occupancy, and matures July 23, 2009. Proceeds from the loan were used to fund a pro rata capital distribution to the joint venture partners based on their ownership interest in Prentiss Office
Investors, L.P. Our operating partnership used proceeds received from the capital distribution to repay a portion of the outstanding borrowings under our revolving credit facility.



On July 29, 2004, Prentiss Office Investors, L.P, completed a five-year $85.0 million loan, collateralized by nine office
buildings owned by various subsidiaries of Prentiss Office Investors, L.P. located in Illinois, California and Virginia. The interest rate on the loan is 85 basis points over 30-day LIBOR and the monthly payments are interest only, with the
principal of $85.0 million payable at its maturity on August 1, 2009. Proceeds from the loan were used to fund a pro rata capital distribution to the joint venture partners based on their ownership interest in Prentiss Office Investors, L.P. Our
operating partnership used proceeds received from the capital distribution to repay a portion of the outstanding borrowings under our revolving credit facility.



On August 16, 2004, Prentiss/Collins Del Mar Heights, LLC, completed a three-year, $34.0 million construction loan with two one-year extension options
to fund a portion of its 158,000 net rentable square foot office development project in Del Mar, California. Construction of the development project commenced during the second quarter of 2004. The loan which has an interest rate of 140 basis points
over 30-day LIBOR matures September 1, 2007. The interest rate will drop 10 basis points if certain economic and occupancy targets are achieved. Borrowings under the construction loan, which totaled $8.9 million at December 31, 2004, were used to
fund a portion of the development cost incurred to date.



On
October 1, 2004, a $33.2 million, 6.92% fixed rate borrowing collateralized by a building located in Dallas, Texas was open for repayment without penalty. We repaid the outstanding balance using proceeds from our revolving credit facility.



On October 8, 2004, in connection with a property acquisition,
we assumed a $46.0 million, 8.22% amortizing mortgage loan with a maturity date of November 1, 2005. We recorded the debt at $47.7 million representing our estimate of the fair market value of the debt on the date of acquisition. The fair value of
the debt was calculated using an effective interest rate of 3.7% which represents our estimate of a market interest rate that we could have achieved on a 1-year collateralized mortgage loan on the date of acquisition.



On December 21, 2004, Prentiss Office Investors, L.P, completed a five-year
$20.0 million loan, collateralized by two office buildings located in Waukegan, Illinois. The interest rate on the loan is 110 basis points over 30-day LIBOR and the monthly payments are interest only, with the principal of $20.0 million payable at
its maturity on December 1, 2009. Proceeds from the loan were used to fund a pro rata capital distribution to the joint venture partners based on their ownership interest in Prentiss Office Investors, L.P. Our operating partnership used proceeds
received from the capital distribution to repay a portion of the outstanding borrowings under our revolving credit facility.



F-12



---

##### Table of Contents

##### Index to Financial Statements

PRENTISS PROPERTIES TRUST

NOTES TO CONSOLIDATED

FINANCIAL STATEMENTS



During the period, we repaid approximately $40.4 million of our $70.4 million
collateralized term loan scheduled to mature on September 30, 2004. The remaining $30.0 million was extended for a period of three years to mature on September 30, 2007 at 30-day LIBOR plus 115 basis points. The loan was previously collateralized by
four properties including Willow Oaks I & II, 8521 Leesburg Pike, and the IBM Call Center. The amendment released the Willow Oaks properties from the collateral pool.



Interest Rate Swap Agreements



On January 28, 2004, our operating partnership completed two four-year interest rate swaps in a notional amount totaling $50.0 million. The interest rate
swap, which effectively locks 30-day LIBOR at 3.819% on $50.0 million of our variable rate borrowings, matures October 1, 2008.



On March 10, 2004, our operating partnership completed a five-year interest rate swap in the notional amount of $30.0 million. The interest rate swap,
which effectively locks 30-day LIBOR at 3.443% on $30.0 million of our variable rate borrowings, matures October 1, 2009.



On April 26, 2004, our operating partnership completed a five-year interest rate swap in a notional amount of $50.0 million. The interest rate swap, which
effectively locks 30-day LIBOR at 3.935% on $50.0 million of our variable rate borrowings, matures May 1, 2009.



On June 23, 2004, Prentiss Office Investors, L.P., completed a four-year interest rate swap in a notional amount of $70.0 million. The interest rate swap,
which effectively locks 30-day LIBOR at 4.139% $70.0 million of future variable rate borrowings, matures August 1, 2008.



Equity



During the year ended December 31, 2004, 2,496,462 common shares of beneficial interest, par value $.01, were issued. The table below
details the common shares issued during the period, common shares placed in or removed from treasury during the period and the common shares outstanding at December 31, 2004:



|                                                                                   |  |            |  
|---------------------------------------------------------------------------------- |  | ---------- | -
|Common shares outstanding at December 31, 2003                                     |  | 42,613,294 |  
|                                                                                   | 
|Common shares issued:                                                              |  |            |  
|Dribble Plan(1)                                                                    |  | 1,634,300  |  
|Share options exercised                                                            |  | 612,020    |  
|Conversion of operating partnership units                                          |  | 113,200    |  
|1996 Share Incentive Plan                                                          |  | 97,450     |  
|Employees Share Purchase Plan                                                     |  | 29,683     |  
|Dividend Reinvestment and Share Purchase Plan(2)                                   |  | 6,154      |  
|Trustees Share Incentive Plan                                                     |  | 3,655      |  
|                                                                                   |  |            |  
|                                                                                   |  | 2,496,462  |  
|                                                                                   | 
|Common shares placed in/removed from treasury:                                     |  |            |  
|Common shares surrendered in connection with share options exercised               |  | (125,963   | )
|Restricted share grants forfeited                                                  |  | (4,000     | )
|Common shares removed from treasury pursuant to our Key Employee Share Option Plan |  | 2,095      |  
|                                                                                   |  |            |  
|Common shares outstanding at December 31, 2004                                     |  | 44,981,888 |  
|                                                                                   |  |            |  



F-13



---

##### Table of Contents

##### Index to Financial Statements

PRENTISS PROPERTIES TRUST

NOTES TO CONSOLIDATED

FINANCIAL STATEMENTS



|(1) | On June 10, 2002, we entered into a securities sales agreement with Brinson Patrick
Securities Corporation which we refer to as the Dribble Plan. Under the Dribble Plan we may sell, with Brinson Patrick acting as our sales agent, up to 3,000,000 of our common shares at the then market price directly to the public. During the year
ended December 31, 2004, we issued 1,634,300 common shares through the Dribble Plan resulting in net proceeds of $54.1 million. The proceeds were used to repay a portion of the outstanding borrowings under our revolving credit facility. On May 28,
2004, we entered into an additional securities sales agreement with Brinson Patrick Securities Corporation covering 2,000,000 of our common shares in the form of the Dribble Plan that was adopted on June 10, 2002. Shares will be issuable pursuant to
the May 28, 2004 Dribble Plan after all shares have been issued under the original Dribble Plan.
|--- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(2) | We have a Dividend Reinvestment and Share Purchase Plan which allows investors an option to
purchase common shares by making optional cash investments of $100 to $5,000 in a given month for current shareholders or $500 to $5,000 for persons who are not current shareholders. The plan also allows shareholders to purchase our common shares by
reinvesting all or a portion of cash dividends received on our common or preferred shares. Purchases of greater than $5,000 can be accomplished by us granting a waiver to the $5,000 limit. During the year ended December 31, 2004, pursuant to our
Dividend Reinvestment and Share Purchase Plan, we issued 6,154 common shares resulting in net proceeds of $214,000. The proceeds were used to repay a portion of the outstanding borrowings under our revolving credit facility.
|--- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



On February 4, 2004, pursuant to a unit
repurchase agreement between our operating partnership and Brandywine Operating Partnership, L.P., we repurchased from Brandywine Operating Partnership, L.P. our outstanding 7.50% Series E Preferred Units and 26,768 common units held by Brandywine
Operating Partnership, L.P. The Series E Preferred Units, which were classified as mandatorily redeemable preferred units, a liability, on our consolidated balance sheet, were repurchased at their liquidation value of $10.0 million plus accrued and
unpaid dividends of $70,055. The common units, which were classified within minority interest in operating partnership on our consolidated balance sheet, were repurchased for $891,803 representing a per unit price of $33.316, calculated as the
average of the daily market price of our common shares for the 10 consecutive trading days prior to the date of repurchase. Concurrent with the repurchase, Brandywine Operating Partnership, L.P. repaid two promissory notes totaling $8.9 million and
accrued and unpaid interest of $282,308 due to our operating partnership. An amount totaling $1.7 million, representing the difference between the units repurchased and the proceeds from the promissory notes was paid by our operating partnership to
Brandywine Operating Partnership, L.P. using funds from our revolving credit facility.



Using proceeds from our revolving credit facility, on February 24, 2004, we repurchased the operating partnerships outstanding 8.30% Series B Cumulative Redeemable Perpetual Preferred Units, which were
classified within minority interest in operating partnership on our consolidated balance sheet, for approximately $96.2 million, which included accrued and unpaid dividends of $1.2 million. An amount totaling $1.6 million representing the original
issuance cost of the Series B Cumulative Redeemable Perpetual Preferred Units was subtracted from net income in arriving at net income applicable to common shareholders in accordance with EITF Topic No. D-42.



|(2) | Summary of Significant Accounting Policies
|--- | ------------------------------------------



Principles of Consolidation



Prentiss Properties Trust does not have any other significant assets, liabilities or operations, other than its investment in the operating partnership
and subsidiaries of the operating partnership, nor does it have employees of its own. Except for variable interest entities, all majority-owned subsidiaries and affiliates where we have financial and operating control are included in the
consolidated financial statements. All significant intercompany balances and transactions have been eliminated in consolidation. Except for variable interest entities in which we have determined that we are the primary beneficiary, investments in
real estate joint ventures over which we have the ability to exercise significant influence, but over which we do not have financial or operating control, are accounted for using the equity method of accounting. Accordingly, our share of the
earnings of these joint ventures is included in consolidated net income. We consolidate any variable interest entity in which we determine that we are the primary beneficiary.



F-14



---

##### Table of Contents

##### Index to Financial Statements

PRENTISS PROPERTIES TRUST

NOTES TO CONSOLIDATED

FINANCIAL STATEMENTS



In January 2003, the Financial Accounting Standards Board issued FASB Interpretation No. 46,
Consolidation of Variable Interest Entities. In December 2003, the Financial Standards Board issued a revision to FASB Interpretation No. 46, FASB Interpretation No. 46(R). The Interpretation, as revised, requires consolidation of an
entity by an enterprise if that enterprise will absorb a majority of the entitys expected losses if they occur, receive a majority of the entitys expected residual returns if they occur, or both. An entity subject to this Interpretation
is called a variable interest entity. The disclosure provisions of this Interpretation, as revised, are effective for financial statements issued after December 31, 2003. Per this Interpretation, as revised, a public entity that is not a small
business issuer with a variable interest entity to which the provisions of the Interpretation have not been applied as of December 24, 2003, shall apply this Interpretation no later than the end of the first reporting period that ends after March
15, 2004. However, prior to the required application of this Interpretation, a public entity that is not a small business issuer shall apply this Interpretation to those entities that are considered to be special-purpose entities no later than as of
the end of the first reporting period that ends after December 15, 2003.



We have evaluated our investments in Broadmoor Austin Associates and Tysons International Partners and determined that the consolidation of these entities by our operating partnership is not required pursuant to FASB
Interpretation No. 46(R). In addition, we evaluated our investment in Prentiss Office Investors, L.P. and Prentiss/Collins Del Mar Heights, LLC and determined that Prentiss Properties Acquisition Partners, L.P. will absorb a majority of the expected
losses and receive a majority of the expected residual return of the entities and as a result, in accordance with FASB Interpretation No. 46, as revised, the entities are consolidated with and into the accounts of Prentiss Properties Acquisition
Partners, L.P.



Real Estate



We allocate the purchase price of properties acquired to tangible assets
consisting of land and building and improvements, and identified intangible assets and liabilities generally consisting of (i) above- and below-market leases, (ii) in-place leases and (iii) tenant relationships. We allocate the purchase price to the
assets acquired and liabilities assumed based on their relative fair values in accordance with Statement of Financial Accounting Standards No. 141, Business Combinations. These fair values are derived as follows:



Amounts allocated to land are derived from (1) comparable sales of raw land,
(2) floor area ratio (FAR) specifics of the land as compared to other developed properties (average land cost per FAR) and (3) our other local market knowledge.



Amounts allocated to buildings and improvements are calculated and recorded as if the building was vacant upon purchase. We use estimated cash flow
projections and apply discount and capitalization rates based on market knowledge. Depreciation is computed using the straight-line method over the estimated life of 30 to 40 years for office buildings and 25 to 30 years for industrial buildings.



We record above-market and below-market in-place lease values
for acquired properties based on the present value (using a market interest rate which reflects the risks associated with the leases acquired) of the difference between (1) the contractual amounts to be paid pursuant to the in-place leases and (2)
managements estimate of fair market lease rates for the corresponding in-place leases, measured over a period equal to the remaining non-cancelable term of the lease for above-market leases and the initial term plus the term of the fixed rate
renewal option, if any for below-market leases. We perform this analysis on a lease (tenant) by lease (tenant) basis. The capitalized above-market lease values are amortized as a reduction to rental income over the remaining non-cancelable terms of
the respective leases. The capitalized below-market lease values are amortized as an increase to rental income over the initial term plus the term of the fixed rate renewal option, if any, of the respective leases. During the year ended December 31,
2004, we allocated $7.1 million and $2.3 million of the purchase price of real estate acquired to below market and above market lease value which will be amortized over weighted average remaining lease lives of 9 years and 5 years, respectively.



Other intangible assets, in-place leases and tenant
relationships, are calculated based on an evaluation of specific characteristics of each tenants lease. Our estimates of fair value for other intangibles includes an estimate



F-15



---

##### Table of Contents

##### Index to Financial Statements

PRENTISS PROPERTIES TRUST

NOTES TO CONSOLIDATED

FINANCIAL STATEMENTS



of carrying costs during the expected lease-up periods for the respective spaces considering
current market conditions and the costs to execute similar leases. In estimating the carrying costs that would have otherwise been incurred had the leases not been in place, we include such items as real estate taxes, insurance and other operating
expenses as well as lost rental revenue during the expected lease-up period based on current market conditions. Costs to execute similar leases include leasing commissions, legal and other related costs. The value of in-place leases is amortized to
expense over the remaining non-cancelable term of the respective leases. Should a tenant terminate its lease, the unamortized portion of the in-place lease value would be charged to expense. During the year ended December 31, 2004, we allocated
$21.1 million and $29.6 million to in-place leases and tenant improvements and leasing commissions which will be amortized over weighted average remaining lease lives of 6 years and 7 years, respectively.



Based on estimates of the fair value of the components of each real estate
property acquired between January 1, 2003 and December 31, 2004, we allocated the purchase price as follows:



|                                            |  |                         |         |   |      |   |         |  
|------------------------------------------- |  | ----------------------- | ------- | - | ---- | - | ------- | -
|                                            |  | Year Ended December 31, |        
|(in thousands)                              |  | 2004                    |         |   | 2003 |  
|Land                                        |  | $                       | 46,597  |   |      | $ | 33,173  |  
|Buildings and improvements                  |  | $                       | 183,250 |   |      | $ | 107,506 |  
|Tenant Improvements and leasing commissions |  | $                       | 29,641  |   |      | $ | 28,159  |  
|Below market lease value                    |  | $                       | (7,122  | ) |      | $ | (833    | )
|Above market lease value                    |  | $                       | 2,342   |   |      | $ | 3,241   |  
|In-place leases                             |  | $                       | 21,099  |   |      | $ | 7,425   |  
|Above market debt                           |  | $                       | (1,651  | ) |      | $ |        |  



We classify real
estate properties, leasehold improvements and land holdings as long-lived assets held for sale or long-lived assets to be held and used. In accordance with Statement of Financial Accounting Standards No. 144, Accounting for the Impairment or
Disposal of Long-Lived Assets, we record assets held for sale at the lower of the carrying amount or fair value, less cost to sell. With respect to assets classified as held and used, we periodically review these assets to determine whether
our carrying amount will be recovered. All of our long-lived assets were classified as held and used at December 31, 2004. The carrying amount is not recoverable if it exceeds the sum of the undiscounted cash flows expected to result from the use
and eventual disposition of the asset. We recognize an impairment loss to the extent the carrying amount is not recoverable. The impairment loss is the amount by which the carrying amount exceeds fair value.



As discussed above, we depreciate our buildings and improvements using the
straight-line method over an estimated useful life of 30 to 40 years for office buildings and 25 to 30 years for industrial buildings. Interest expense and other directly related expenses incurred during construction periods are capitalized and
depreciated commencing with the date the building is placed in service, on the same basis as the related asset. For the years ended December 31, 2004, 2003 and 2002, capitalized interest costs totaled $659,000, $416,000 and $3.4 million,
respectively.



Expenditures for repairs and maintenance are
charged to operations as incurred. Significant betterments are capitalized and depreciated over their estimated useful life. The cost and related accumulated depreciation for assets sold or retired are removed from the accounts with the resulting
gain or loss reflected in net income for the period.



Deferred Charges



Leasing costs and leasehold improvements are
deferred and amortized on a straight-line basis over the terms of the related lease. Deferred financing costs are recorded at cost and are amortized using the effective interest method over the life of the related debt. Other deferred charges are
amortized over terms applicable to the expenditure.



F-16



---

##### Table of Contents

##### Index to Financial Statements

PRENTISS PROPERTIES TRUST

NOTES TO CONSOLIDATED

FINANCIAL STATEMENTS



Allowance for Doubtful Accounts



Accounts receivable are reduced by an allowance for amounts that we estimate
to be uncollectible. Our receivable balance is comprised primarily of accrued rental rate increases to be received over the life of in-place leases as well as rents and operating cost recoveries due from tenants. We regularly evaluate the adequacy
of our allowance for doubtful accounts considering such factors as credit quality of our tenants, delinquency of payment, historical trends and current economic conditions. We reserve all outstanding receivables that are 90-days past due along with
a portion of the remaining receivable balance that we feel is uncollectible based on our evaluation of the outstanding receivable balance. In addition, we increase our allowance for doubtful accounts for accrued rental rate increases, if we
determine such future rent is uncollectible.



Cash and Cash Equivalents



Cash and cash equivalents consist of cash on hand and
investments with maturities of three months or less from the date of purchase. The majority of our cash and cash equivalents are held at major commercial banks which may from time to time exceed the Federal Deposit Insurance Corporation limit of
$100,000. We have not experienced any losses to date on our invested cash.



Escrowed Cash



Escrowed cash includes
amounts established pursuant to certain agreements for real estate purchase and sale transactions and real estate tax, insurance and capital reserve deposits required pursuant to certain of our mortgage loan agreements.



Investments in Securities



At December 31, 2004, Investments in securities consist of investments in
marketable securities held pursuant to our Key Employee Share Option Plan. We account for our investments in securities as available for sale in accordance with Statement of Financial Accounting Standards No. 115, Accounting for
Certain Investments in Debt and Equity Securities. Any decline in market value that is deemed to be other than temporary is recognized as a realized loss in the determination of net income for the period. No such realized loss has been
recognized to date. Any change in the market value of the investments which is deemed temporary is included as an unrealized gain or loss in accumulated other comprehensive income on our consolidated balance sheet. At December 31, 2004, we have an
accumulated unrealized gain of approximately $369,000 from our investments in securities. The unrealized gain is presented in accumulated other comprehensive income in our consolidated statement of changes in shareholders equity. In addition
to the investments in marketable securities held pursuant to our Key Employee Share Option Plan, at December 31, 2003, we held a $423,000 investment in Narrowcast Communications Corporation, a provider of an electronic tenant information service
known as Elevator News Network. The investment in Narrowcast Communications Corporation was carried at cost as it was not considered a marketable security under Statement of Financial Accounting Standards No. 115. During the year ended December 31,
2004, we received a return of our investment of approximately $3,000 and recorded a loss on investment of approximately $420,000.



Investment in Insurance Contracts



Investments in insurance contracts consist of investments held pursuant to our Executive Choice Deferred Compensation Plan as described in Note
(16). We account for our investments in insurance contracts at the cash surrender value of the contracts at each balance sheet date in accordance with FASB Technical Bulletin No. 85-4, Accounting for Purchase of Life Insurance.



F-17



---

##### Table of Contents

##### Index to Financial Statements

PRENTISS PROPERTIES TRUST

NOTES TO CONSOLIDATED

FINANCIAL STATEMENTS



Investments in Unconsolidated Joint Ventures



Except for ownership interest in a variable interest entity, we account for
our investments in joint ventures using the equity method of accounting because we exercise significant influence over, but do not control these entities. These investments are recorded intially at cost and are adjusted for our share of equity in
earnings, cash contributions and distributions. We report our share of income and losses based on our ownership interest in the entities. Any decline in market value that is deemed to be other than temporary is recognized as an impairment in equity
in income of joint ventures. Any excess of carrying amount of our non-controlling interests over the book value of the underlying equity is amortized over 40 years from the date of purchase. For the three years ended December 31, 2004, we recognized
amortization expense totaling approximately $254,000 per year.



Income
Taxes



We have elected to be taxed as a REIT under
Sections 856 through 860 of the Internal Revenue Code of 1986, as amended. If we qualify for taxation as a REIT, we generally will not be subject to federal corporate income tax on our taxable income that is distributed to our shareholders. A REIT
is subject to a number of organizational and operational requirements, including a requirement that it currently distribute at least 90% of its annual taxable income.



Effective January 1, 2003, our operating partnership acquired for approximately $67,000, the voting stock of Prentiss
Properties Resources, Inc., from Ampulla, LLC, a single member limited liability company owned by Michael V. Prentiss, Chairman of the Board of Prentiss Properties Trust. Prentiss Properties Resources, Inc. was incorporated in March 2001 to serve as
a Taxable REIT Subsidiary and provide management and other services to our operating partnership and third-party clients. The management services business serves a broad base of clients, including major financial institutions and pension funds,
large corporate users, real estate advisory firms and real estate investment groups. Through Prentiss Properties Resources, Inc. we offer a full range of fee-based services, including property management, leasing, tenant construction, insurance,
accounting, tax, acquisition, disposition, facilities management, and corporate and asset management services. Prior to this transaction, we owned a 98% non-voting interest and accounted for our interest in Prentiss Properties Resources, Inc. using
the equity method of accounting. Subsequent to this transaction, the operating partnership owns 100% of Prentiss Properties Resources, Inc. and we consolidate the accounts of Prentiss Properties Resources, Inc. with and into the accounts of the
operating partnership. Taxable income from Prentiss Properties Resources, Inc. is subject to federal, state and local taxes.



Leases



We, as lessor, have retained substantially all the risks and benefits of ownership and account for our leases as operating leases.



Revenue Recognition



In accordance with Statement of Financial Accounting Standards No.
13, Accounting for Leases, income on leases which includes scheduled rental rate increases over the lease term is recognized on a straight-line basis. Income received from tenants for early lease terminations is recognized as earned.



Service business fees and other income items received are
recognized as earned. Leasing fees are generally recognized upon tenant occupancy of the leased premises unless such fees are irrevocably due and payable upon lease execution, in which case recognition occurs on the lease execution date. Included in
our service business and other income is interest income from cash deposits and notes receivable of $828,000, $1.8 million and $2.0 million for the years ended December 31, 2004, 2003, and 2002, respectively.



F-18



---

##### Table of Contents

##### Index to Financial Statements

PRENTISS PROPERTIES TRUST

NOTES TO CONSOLIDATED

FINANCIAL STATEMENTS



Mandatorily Redeemable Preferred Units



In May 2003, the Financial Accounting Standards Board issued Statement of
Financial Accounting Standards No. 150, Accounting for Certain Financial Instruments with Characteristics of both Liabilities and Equity, which defines a mandatorily redeemable financial instrument as a financial instrument issued in the
form of shares which embodies an unconditional obligation requiring the issuer to redeem the instrument by transferring its assets at a specified or determinable date or upon an event certain to occur. Due to the redemption provisions of our Series
E Preferred Units, in accordance with Statement No. 150 we classified our Series E Preferred Units as mandatorily redeemable and thus a liability on our consolidated balance sheet at December 31, 2003. On February 4, 2004 the Series E Preferred
Units were repurchased at their liquidation value.



Distributions



We pay regular quarterly distributions to the holders
of our outstanding common shares. These distributions are dependent on distributions from our operating partnership. The holders of our Series D Convertible Preferred Shares receive a quarterly dividend per share equal to the per share distribution
paid on our common shares.



Earnings and profits, which will
determine the taxability of distributions to shareholders, will differ from income reported for financial reporting purposes due to the differences for federal tax purposes, primarily in the estimated useful lives used to compute depreciation,
timing of the recognition of capital gain or loss transactions, changes in our allowance for doubtful accounts, and the recognition of rental income on a straight-line basis for financial reporting purposes.



Minority Interest



Minority interest in the operating partnership represents the limited
partners proportionate share of the equity in our operating partnership. The operating partnership pays a regular quarterly distribution to the holders of common units. Income is allocated to minority interest based on the weighted average
percentage ownership during the year.



Minority interest in
real estate partnerships represents the other partners proportionate share of the equity in certain real estate partnerships. We have determined that either our operating partnership is the primary beneficiary of those real estate partnerships
determined to be variable interest entities or that our operating partnership holds financial and operating control over those real estate partnerships determined not to be variable interest entities and thus, consolidates the accounts with and into
the accounts of the operating partnership. Income is allocated to minority interest based on the weighted average percentage ownership during the year.



Concentration of Credit Risk



We place cash deposits at major banks. We believe that through our cash investment policy, the credit risk related to these deposits is minimal.



Use of Estimates in the Preparation of Financial Statements



The preparation of financial statements in conformity
with accounting principles generally accepted in the United States of America requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of
the financial statements and the reported amounts of revenues and expenses during the reporting period. These estimates include such items as purchase price allocation for real estate acquisitions, impairment of long-lived assets, depreciation and
amortization and allowance for doubtful accounts. Actual results could differ from our estimates.



F-19



---

##### Table of Contents

##### Index to Financial Statements

PRENTISS PROPERTIES TRUST

NOTES TO CONSOLIDATED

FINANCIAL STATEMENTS



Fair Value of Financial Instruments



Statement of Financial Accounting Standards No. 107, Disclosures about
Fair Value of Financial Instruments, requires disclosures about the fair value of financial instruments whether or not such instruments are recognizable in the balance sheet. Our financial instruments include receivables, cash and cash
equivalents, escrowed cash, investments in securities, accounts payable, other accrued expenses, mortgages and notes payable and interest rate hedge agreements. The fair values of these financial instruments, other than the fixed rate mortgages and
notes payable, are not materially different from their carrying or contract amounts. We estimate the fair value of our consolidated fixed rate mortgages and notes payable to exceed the carrying amount by $41.6 million at December 31, 2004.



Fair Value of Derivative Instruments



Statement of Financial Accounting Standards No. 133, Accounting for
Derivative Instruments and Hedging Activities, as amended and interpreted, beginning January 1, 2001, establishes accounting and reporting standards for derivative instruments. Specifically it requires an entity to recognize all derivatives as
either assets or liabilities in the statement of financial position and to measure those instruments at fair value. Changes in fair value will affect either shareholders equity or net income depending on whether the derivative instrument
qualifies as a hedge for accounting purposes.



During 2004, we
recorded an increase in the fair value of our derivatives of $7.0 million. The increase of fair value was recorded as a credit of $6.7 million to other comprehensive income, and a gain in current period earnings of approximately $323,000.



On December 31, 2004, our derivative financial instruments
were reported at their fair value as a liability of $3.8 million and an asset of $2.8 million. We have accumulated unrealized losses of $3.5 million and accumulated unrealized gains of $2.8 million presented in accumulated other comprehensive income
on our consolidated balance sheet.



F-20



---

##### Table of Contents

##### Index to Financial Statements

PRENTISS PROPERTIES TRUST

NOTES TO CONSOLIDATED

FINANCIAL STATEMENTS



Earnings Per Share



We calculate earnings per share in accordance with Statement of Financial
Accounting Standards No. 128, Earnings per Share, which requires a dual presentation of basic and diluted earnings per share on the face of the income statement. Additionally, the statement requires a reconciliation of the numerator and
denominator used in computing basic and diluted earnings per share. The table below presents a reconciliation of the numerator and denominator used to calculate basic and diluted earnings per share for the years ended December 31, 2004, 2003 and
2002:



|                                                                                  |  |      |         |   |      |   |        |      |  |   |        |  
|--------------------------------------------------------------------------------- |  | ---- | ------- | - | ---- | - | ------ | ---- |  | - | ------ | -
|(in thousands, except per share data)                                             |  | 2004 |         |   | 2003 |   |        | 2002 | 
|Reconciliation of the numerator used for basic earnings per share                 |  |      |         |   |      |   |        |      |  |   |        |  
|Income from continuing operations                                                 |  | $    | 51,516  |   |      | $ | 48,458 |      |  | $ | 55,618 |  
|Preferred dividends                                                               |  |      | (10,052 | ) |      |   | (8,452 | )    |  |   | (8,358 | )
|Gain on sale of land and an interest in a real estate partnership                 |  |      | 1,222   |   |      |   | 9,435  |      |  |   |       |  
|                                                                                  |  |      |         |   |      |   |        |      |  |   |        |  
|Income from continuing operations applicable to common shareholders               |  | $    | 42,686  |   |      | $ | 49,441 |      |  | $ | 47,260 |  
|                                                                                  |  |      |        
|Discontinued operations                                                           |  |      | 9,685   |   |      |   | 1,524  |      |  |   | 18,663 |  
|                                                                                  |  |      |         |   |      |   |        |      |  |   |        |  
|Net income applicable to common shareholders                                      |  | $    | 52,371  |   |      | $ | 50,965 |      |  | $ | 65,923 |  
|                                                                                  |  |      |        
|Reconciliation of the denominator used for basic earnings per share               |  |      |         |   |      |   |        |      |  |   |        |  
|Weighted average number of common shares outstanding                              |  |      | 44,330  |   |      |   | 40,068 |      |  |   | 38,409 |  
|                                                                                  |  |      |         |   |      |   |        |      |  |   |        |  
|Basic earnings per common share                                                   |  | $    | 1.18    |   |      | $ | 1.27   |      |  | $ | 1.72   |  
|                                                                                  |  |      |         |   |      |   |        |      |  |   |        |  
|Reconciliation of the numerator used for dilutive earnings per share              |  |      |         |   |      |   |        |      |  |   |        |  
|Income from continuing operations                                                 |  | $    | 51,516  |   |      | $ | 48,458 |      |  | $ | 55,618 |  
|Preferred dividends                                                               |  |      | (10,052 | ) |      |   | (8,452 | )    |  |   | (8,358 | )
|Gain on sale of land and an interest in a real estate partnership                 |  |      | 1,222   |   |      |   | 9,435  |      |  |   |       |  
|                                                                                  |  |      |         |   |      |   |        |      |  |   |        |  
|Income from continuing operations applicable to common shareholders               |  | $    | 42,686  |   |      | $ | 49,441 |      |  | $ | 47,260 |  
|                                                                                  |  |      |        
|Discontinued operations                                                           |  |      | 9,685   |   |      |   | 1,524  |      |  |   | 18,663 |  
|                                                                                  |  |      |         |   |      |   |        |      |  |   |        |  
|Net income applicable to common shareholders                                      |  | $    | 52,371  |   |      | $ | 50,965 |      |  | $ | 65,923 |  
|                                                                                  |  |      |        
|Reconciliation of the denominator used for dilutive earnings per share            |  |      |         |   |      |   |        |      |  |   |        |  
|Weighted average common shares outstanding                                        |  |      | 44,330  |   |      |   | 40,068 |      |  |   | 38,409 |  
|Preferred shares(1)                                                               |  |      |        |   |      |   |       |      |  |   |       |  
|Options                                                                           |  |      | 127     |   |      |   | 181    |      |  |   | 240    |  
|Share grants                                                                      |  |      | 72      |   |      |   | 21     |      |  |   |       |  
|                                                                                  |  |      |         |   |      |   |        |      |  |   |        |  
|Weighted average number of common shares and common share equivalents outstanding |  |      | 44,529  |   |      |   | 40,270 |      |  |   | 38,649 |  
|                                                                                  |  |      |         |   |      |   |        |      |  |   |        |  
|Diluted earnings per common share                                                 |  | $    | 1.18    |   |      | $ | 1.27   |      |  | $ | 1.71   |  
|                                                                                  |  |      |         |   |      |   |        |      |  |   |        |  

---

|(1) | The following securities were not included in the diluted earnings per share computation
because they would have had an antidilutive effect.
|--- | --------------------------------------------------------------------------------------------------------------------------------------------



F-21



---

##### Table of Contents

##### Index to Financial Statements

PRENTISS PROPERTIES TRUST

NOTES TO CONSOLIDATED

FINANCIAL STATEMENTS



|                                      |  |                                 |  |            |  |       |  |      
|------------------------------------- |  | ------------------------------- |  | ---------- |  | ----- |  | -----
|                                      |  |                                 |  | Year Ended
|(in thousands, except per share data) |  | Weighted Average Exercise Price |  | 2004       |  | 2003  |  | 2002 
|Share options                         |  | 29.51                           |  |           |  | 15    |  |     
|Share options                         |  | 29.99                           |  |           |  | 37    |  |     
|Share options                         |  | 31.35                           |  |           |  | 37    |  | 37   
|Series D Convertible Preferred Shares |  |                                 |  | 3,774      |  | 3,774 |  | 3,774
|                                      |  |                                 |  |            |  |       |  |      
|Total                                 |  |                                 |  | 3,774      |  | 3,863 |  | 3,811
|                                      |  |                                 |  |            |  |       |  |      



Accounting for Share-Based
Compensation



In December 2002, the Financial
Accounting Standards Board issued Statement of Financial Accounting Standards No. 148, Accounting for Stock-Based CompensationTransition and Disclosure. The statement amends Financial Accounting Standards No. 123, Accounting
for Stock-Based Compensation, expanding disclosure requirements and providing alternative methods of transition for an entity that voluntarily changes to the fair value based method of accounting for stock or share-based employee compensation.



On January 1, 2003, we adopted the fair value based method of
accounting as prescribed by statement of Financial Accounting Standards No. 123, as amended, for our share-based compensation plans and have elected to apply this method on a prospective basis as prescribed in Financial Accounting Standards No. 148.
The prospective basis requires that we apply the fair value based method of accounting to all awards granted, modified or settled after the beginning of the fiscal year in which we adopt the accounting method.



Historically, we applied the intrinsic value based method of accounting as
prescribed by APB Opinion 25 and related Interpretations in accounting for our share-based awards. Had we fully adopted Statements of Financial Accounting Standards No. 123, for awards issued prior to January 1, 2003, it would have changed our
method for recognizing the cost of our plans. Had the compensation cost for our share-based compensation plans been determined consistent with Statement of Financial Accounting Standards No. 123, our net income and net income per common share for
2004, 2003, and 2002 would approximate the pro forma amounts below:



|                                                                                                          |  |            |        |   |      |   |        |      |  |   |        |  
|--------------------------------------------------------------------------------------------------------- |  | ---------- | ------ | - | ---- | - | ------ | ---- |  | - | ------ | -
|                                                                                                          |  | Year Ended |       
|(amounts in thousands, except per share data)                                                             |  | 2004       |        |   | 2003 |   |        | 2002 | 
|Net income applicable to common shareholders as reported                                                  |  | $          | 52,371 |   |      | $ | 50,965 |      |  | $ | 65,923 |  
|Add: Share-based employee compensation expense included therein                                           |  |            | 2,714  |   |      |   | 1,959  |      |  |   | 1,632  |  
|Deduct: Total share-based employee compensation expense determined under fair value method for all awards |  |            | (2,795 | ) |      |   | (2,237 | )    |  |   | (2,155 | )
|                                                                                                          |  |            |        |   |      |   |        |      |  |   |        |  
|Pro Forma net income applicable to common shareholders                                                    |  | $          | 52,290 |   |      | $ | 50,687 |      |  | $ | 65,400 |  
|                                                                                                          |  |            |        |   |      |   |        |      |  |   |        |  
|Earnings per share:                                                                                       |  |            |        |   |      |   |        |      |  |   |        |  
|Basic  as reported                                                                                       |  | $          | 1.18   |   |      | $ | 1.27   |      |  | $ | 1.72   |  
|                                                                                                          |  |            |        |   |      |   |        |      |  |   |        |  
|Basic  pro forma                                                                                         |  | $          | 1.18   |   |      | $ | 1.27   |      |  | $ | 1.70   |  
|                                                                                                          |  |            |        |   |      |   |        |      |  |   |        |  
|Diluted  as reported                                                                                     |  | $          | 1.18   |   |      | $ | 1.27   |      |  | $ | 1.71   |  
|                                                                                                          |  |            |        |   |      |   |        |      |  |   |        |  
|Diluted  pro forma                                                                                       |  | $          | 1.17   |   |      | $ | 1.26   |      |  | $ | 1.69   |  
|                                                                                                          |  |            |        |   |      |   |        |      |  |   |        |  



F-22



---

##### Table of Contents

##### Index to Financial Statements

PRENTISS PROPERTIES TRUST

NOTES TO CONSOLIDATED

FINANCIAL STATEMENTS



(3) Deferred Charges and Other Assets, Net



Deferred charges and other assets consisted of the following at December 31,
2004 and 2003:



|                                               |  |                |          |   |      |   |          |  
|---------------------------------------------- |  | -------------- | -------- | - | ---- | - | -------- | -
|                                               |  | (in thousands) |         
|                                               |  | 2004           |          |   | 2003 |  
|Deferred leasing costs and tenant improvements |  | $              | 311,320  |   |      | $ | 276,926  |  
|In-place leases                                |  |                | 27,910   |   |      |   | 7,425    |  
|Above market lease values, net of amortization |  |                | 5,666    |   |      |   | 3,324    |  
|Deferred financing costs                       |  |                | 14,568   |   |      |   | 14,870   |  
|Prepaids and other assets                      |  |                | 11,610   |   |      |   | 8,920    |  
|                                               |  |                |          |   |      |   |          |  
|                                               |  |                | 371,074  |   |      |   | 311,465  |  
|Less: accumulated amortization                 |  |                | (110,791 | ) |      |   | (101,045 | )
|                                               |  |                |          |   |      |   |          |  
|                                               |  | $              | 260,283  |   |      | $ | 210,420  |  
|                                               |  |                |          |   |      |   |          |  



(4) Notes Receivable



Our notes receivable balance of $1.5 million at December
31, 2004 is the result of a real estate transaction that included a non-recourse promissory note totaling $4.4 million, collateralized by a real estate property sold, maturing March 1, 2005, bearing interest at 7.95% per annum and requiring interest
only payments until maturity. On December 22, 2004, we received correspondence from the borrower indicating an inability to fulfill their total obligation under the note. Due to the fact that our note receivable is subordinate to a first mortgage
totaling approximately $12.0 million, we initiated an evaluation of the underlying real estate. Our evaluation was to determine whether the fair value of the property, less cost to sell would be sufficient to satisfy both the first mortgage and our
note receivable. In our opinion, the fair value of the underlying real estate would not be sufficient to satisfy both the first mortgage and our note receivable and thus in the preparation of our financial statements, we recognized a $2.9 million
write-down of the note. The resulting $1.5 million note receivable balance represents our estimate of the present value of the expected future cash flows to be received under the note.



(5) Accounts Receivable, Net



Accounts receivable consisted of the following at December 31, 2004 and 2003:



|                                      |  |                |        |   |      |   |        |  
|------------------------------------- |  | -------------- | ------ | - | ---- | - | ------ | -
|                                      |  | (in thousands) |       
|                                      |  | 2004           |        |   | 2003 |  
|Rents and services                    |  | $              | 10,449 |   |      | $ | 12,322 |  
|Accruable rental income               |  |                | 50,721 |   |      |   | 44,137 |  
|Other                                 |  |                | 809    |   |      |   | 939    |  
|                                      |  |                |        |   |      |   |        |  
|                                      |  |                | 61,979 |   |      |   | 57,398 |  
|Less: allowance for doubtful accounts |  |                | (6,207 | ) |      |   | (9,986 | )
|                                      |  |                |        |   |      |   |        |  
|                                      |  | $              | 55,772 |   |      | $ | 47,412 |  
|                                      |  |                |        |   |      |   |        |  



Accruable rental
income represents rental income recognized on a straight-line basis in excess of rental revenue accrued in accordance with individual lease agreements.



On June 30, 1999, we loaned $4.2 million to various key employees as part of our long-term incentive plan to retain such employees. The funds were used to
purchase common shares of the company in the open market. The loans are full recourse notes, which accrue interest quarterly at a fixed rate of 7.0% and have a term of five years. Interest payments are due quarterly. The loan balances were to be
forgiven, contingent upon each key employees continued employment with us, in the following manner: one-third of the principal balance was forgiven at the end of the third year of the loan term, one-third was forgiven at the end of the fourth
year of the loan term, and the remaining principal balance was forgiven in June 2004 concurrent with the end of the fifth year of the loan term.



F-23



---

##### Table of Contents

##### Index to Financial Statements

PRENTISS PROPERTIES TRUST

NOTES TO CONSOLIDATED

FINANCIAL STATEMENTS



(6) Investments in Unconsolidated Joint Ventures and Unconsolidated Subsidiaries



The following information summarizes the financial
position at December 31, 2004 and 2003 and the results of operations for the years ended December 31, 2004, 2003 and 2002 for the investments in which we held an unconsolidated interest during the periods presented:



|                                 |  |               |        |                |   |              |  |               |                     |              |   |         |               |   |         |              |  |               |         |   |  |   |        |  |   |       
|-------------------------------- |  | ------------- | ------ | -------------- | - | ------------ |  | ------------- | ------------------- | ------------ | - | ------- | ------------- | - | ------- | ------------ |  | ------------- | ------- | - |  | - | ------ |  | - | ------
|Summary of Financial Position:   |  | Total Assets  |        | Total Debt (7) |   | Total Equity |  |               | CompanysInvestment
|(in thousands)                   |  | Dec. 31, 2004 |        | Dec. 31, 2003  |   | Dec. 31,2004 |  | Dec. 31, 2003 |                     | Dec. 31,2004 |   |         | Dec. 31, 2003 |   |         | Dec. 31,2004 |  | Dec. 31, 2003
|Broadmoor Austin Associates(1)   |  | $             | 97,962 |                | $ | 103,334      |  | $             | 131,979             |              | $ | 138,552 |               | $ | (34,814 | )            |  | $             | (35,991 | ) |  | $ | 4,217  |  | $ | 3,882 
|Tysons International Partners(2) |  |               | 89,268 |                |   | 95,186       |  |               | 59,113              |              |   | 59,914  |               |   | 28,914  |              |  |               | 34,213  |   |  |   | 8,726  |  |   | 9,226 
|Other Investments(3)             |  |               |       |                |   |             |  |               |                    |              |   |        |               |   |        |              |  |               |        |   |  |   |       |  |   | 1,107 
|                                 |  |               |        |                |   |              |  |               |                     |              |   |         |               |   |         |              |  |               |         |   |  |   |        |  |   |       
|                                 |  |               |        |                |   |              |  |               |                     |              |   |         |               |   |         |              |  |               |         |   |  | $ | 12,943 |  | $ | 14,215
|                                 |  |               |        |                |   |              |  |               |                     |              |   |         |               |   |         |              |  |               |         |   |  |   |        |  |   |       



|                                       |  |               |        |                   |   |        |                                      |      |        |  |      |       |      |  |   |       |  |   |       |   |      |   |       |   |  |   |       |  |   |       |  
|-------------------------------------- |  | ------------- | ------ | ----------------- | - | ------ | ------------------------------------ | ---- | ------ |  | ---- | ----- | ---- |  | - | ----- |  | - | ----- | - | ---- | - | ----- | - |  | - | ----- |  | - | ----- | -
|Summary of Operations:                 |  | Total Revenue |        | Net Income/(Loss) |   |        | Companys Share of Net Income/(Loss) |     
|(in thousands)                         |  | 2004          |        | 2003              |   | 2002   |                                      | 2004 |        |  | 2003 |       | 2002 |  |   | 2004  |  |   | 2003  |   | 2002 |  
|Broadmoor Austin Associates            |  | $             | 20,015 |                   | $ | 20,093 |                                      | $    | 20,118 |  | $    | 5,058 |      |  | $ | 4,586 |  | $ | 4,295 |   |      | $ | 2,529 |   |  | $ | 2,293 |  | $ | 2,148 |  
|Burnett Plaza Associates(4)            |  |               |       |                   |   |       |                                      |      | 4,302  |  |      |      |      |  |   |      |  |   | 960   |   |      |   |      |   |  |   |      |  |   | 192   |  
|PPS Partners LLC(5)                    |  |               |       |                   |   |       |                                      |      | 44     |  |      |      |      |  |   |      |  |   | (13   | ) |      |   |      |   |  |   |      |  |   | (10   | )
|Prentiss Properties Resources, Inc.(6) |  |               |       |                   |   |       |                                      |      | 14,075 |  |      |      |      |  |   |      |  |   | 664   |   |      |   |      |   |  |   |      |  |   | 651   |  
|Tysons International Partners          |  |               | 11,985 |                   |   | 12,960 |                                      |      | 13,092 |  |      | (399  | )    |  |   | 1,052 |  |   | 692   |   |      |   | (100  | ) |  |   | 262   |  |   | 173   |  
|                                       |  |               |        |                   |   |        |                                      |      |        |  |      |       |      |  |   |       |  |   |       |   |      |   |       |   |  |   |       |  |   |       |  
|                                       |  |               |        |                   |   |        |                                      |      |        |  |      |       |      |  |   |       |  |   |       |   |      | $ | 2,429 |   |  | $ | 2,555 |  | $ | 3,154 |  
|                                       |  |               |        |                   |   |        |                                      |      |        |  |      |       |      |  |   |       |  |   |       |   |      |   |       |   |  |   |       |  |   |       |  

---

|(1) | We own a 50% non-controlling interest in Broadmoor Austin Associates, an entity, which owns a
seven-building, 1.1 million net rentable square foot office complex in Austin, Texas.
|--- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(2) | We own a 25% non-controlling interest in Tysons International Partners, an entity, which owns
two office properties containing 452,000 net rentable square feet in the Northern Virginia area.
|--- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(3) | Prior to April 14, 2004, we owned a 1% interest in certain real estate entities accounted for
using the cost method of accounting. On April 14, 2004, we sold our interest to Brandywine Realty Trust for proceeds totaling $1.1 million, equaling our carrying amount of our investment at the date of sale.
|--- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(4) | Prior to March 2002, we owned a 20% non-controlling interest in Burnett Plaza Associates, an
entity, which owns a 1.0 million net rentable square foot office building in downtown Fort Worth, Texas. On March 7, 2002, we acquired the remaining 80% interest in Burnett Plaza Associates. The summary of operations above includes the results of
operations for the periods prior to our acquisition of a controlling interest on March 7, 2002.
|--- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(5) | PPS Partners LLC was a joint venture between our operating partnership and a third-party
property owner. The third-party property owner contributed property management contracts to PPS Partners LLC. Our operating partnership through a sub-management contract managed the properties and participated in the net income of the joint venture.
Effective October 2001, our operating partnership resigned the management duties of the properties.
|--- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(6) | On March 28, 2001, Prentiss Properties Resources, Inc. was incorporated under the General
Corporation Law of the State of Delaware to serve as a Taxable REIT Subsidiary and provide services to our operating partnership. On March 29, 2001, Prentiss Properties Resources, Inc. acquired our interest in Prentiss Properties Limited, Inc.,
valued at $3.9 million, along with certain other assets with a carrying amount of approximately $2.5 million. At December 31, 2002, our operating partnership held a 98% economic interest and 0% voting interest in Prentiss Properties Resources, Inc.
Effective January 1, 2003, our operating partnership acquired the remaining 2% interest in Prentiss Properties Resources, Inc. for total consideration of approximately $67,000. The summary of operations above includes the results of operations for
the period prior to our acquisition of a controlling interest on January 1, 2003.
|--- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(7) | The mortgage debt, all of which is non-recourse, is collateralized by the individual real
estate property or properties within each venture.
|--- | --------------------------------------------------------------------------------------------------------------------------------------------



F-24



---

##### Table of Contents

##### Index to Financial Statements

PRENTISS PROPERTIES TRUST

NOTES TO CONSOLIDATED

FINANCIAL STATEMENTS



(7) Mortgages and Notes Payable



At December 31, 2004, we had mortgage and notes payable of $1.19 billion,
excluding our proportionate share of debt from our unconsolidated joint ventures.



The following table sets forth our mortgages and notes payable as of December 31, 2004 and 2003:



|                                                  |  |                |           |      |   |              |  |                  |  |              |  |                   
|------------------------------------------------- |  | -------------- | --------- | ---- | - | ------------ |  | ---------------- |  | ------------ |  | ------------------
|                                                  |  | (in thousands) |           |      |   |              |  |                 
|Description                                       |  | 2004           |           | 2003 |   | Amortization |  | Interest Rate(1) |  | Maturity    
|Revolving credit facility                         |  | $              | 217,500   |      | $ | 111,000      |  | None             |  | LIBOR+1.250% |  | February 19, 2007 
|PPREFI portfolio loan(2)                          |  |                | 180,100   |      |   | 180,100      |  | None             |  | 7.58%        |  | February 26, 2007 
|High Bluffs construction loan                     |  |                | 8,929     |      |   |             |  | None             |  | LIBOR+1.400% |  | September 1, 2007 
|Collateralized term loan - Union Bank of Calif(3) |  |                | 30,000    |      |   | 70,813       |  | None             |  | LIBOR+1.150% |  | September 30, 2007
|Unsecured term loan - Eurohypo I                  |  |                | 100,000   |      |   | 100,000      |  | None             |  | LIBOR+1.250% |  | May 22, 2008      
|Unsecured term loan  Commerz                     |  |                | 75,000    |      |   | 75,000       |  | None             |  | LIBOR+1.250% |  | March 15, 2009    
|Unsecured term loan - Eurohypo II                 |  |                | 13,760    |      |   | 14,000       |  | 30 yr            |  | 7.46%        |  | July 15, 2009     
|Collateralized term loan - Mass Mutual(4)         |  |                | 85,000    |      |   |             |  | None             |  | LIBOR+0.850% |  | August 1, 2009    
|Variable rate mortgage notes payable(5)           |  |                | 96,700    |      |   | 66,000       |  | None             |  | (6)          |  | (6)               
|Fixed rate mortgage notes payable(7)              |  |                | 384,922   |      |   | 412,122      |  | (8)              |  | (8)          |  | (8)               
|                                                  |  |                |           |      |   |              |  |                  |  |              |  |                   
|                                                  |  | $              | 1,191,911 |      | $ | 1,029,035    |  |                  |  |              |  |                   
|                                                  |  |                |           |      |   |              |  |                  |  |              |  |                   

---

|(1) | 30-day LIBOR was 2.40% at December 31, 2004.
|--- | --------------------------------------------

|(2) | The PPREFI portfolio loan is collateralized by 36 properties with an aggregate net book value of real estate of $236.9 million.
|--- | -------------------------------------------------------------------------------------------------------------------------------

|(3) | The term loan is collateralized by two properties with an aggregate net book value of real
estate of $18.4 million.
|--- | -------------------------------------------------------------------------------------------------------------------

|(4) | The term loan is collateralized by 9 properties with an aggregate net book value of real estate of $107.7 million.
|--- | ------------------------------------------------------------------------------------------------------------------

|(5) | The variable rate mortgage loans are collateralized by 4 buildings with an aggregate net book value of $126.4 million.
|--- | ----------------------------------------------------------------------------------------------------------------------

|(6) | Interest rates on our variable rate mortgages range from 30-day LIBOR plus 110 basis points
to 30-day LIBOR plus 150 basis points. Maturity dates range from July 2005 through December 2009.
|--- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(7) | The fixed rate mortgage loans are collateralized by 22 buildings with an aggregate net book value of $488.7 million.
|--- | --------------------------------------------------------------------------------------------------------------------

|(8) | The effective interest rates for our fixed rate mortgages range from 3.70% to 8.05% with a weighted average effective interest rate of 7.14% at December 31, 2004.
Maturity dates range from November 2005 through June 2013 with a weighted average maturity of 5.6 years from December 31, 2004.
|--- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



Our future scheduled principal repayments on our mortgages and notes payable are as follows:



|                          |  |                |          
|------------------------- |  | -------------- | ---------
|Years ending December 31: |  | (in thousands)
|2005                      |  | $              | 118,308  
|2006                      |  |                | 9,704    
|2007                      |  |                | 448,610  
|2008                      |  |                | 106,048  
|2009                      |  |                | 250,111  
|Thereafter                |  |                | 259,130  
|                          |  |                |          
|                          |  | $              | 1,191,911
|                          |  |                |          



Under our loan
agreements, we are required to satisfy various affirmative and negative covenants, including limitations on total indebtedness, total collateralized indebtedness and cash distributions, as well as obligations to maintain certain minimum tangible net
worth and certain minimum interest coverage ratios. We were in compliance with these covenants at December 31, 2004.



F-25



---

##### Table of Contents

##### Index to Financial Statements

PRENTISS PROPERTIES TRUST

NOTES TO CONSOLIDATED

FINANCIAL STATEMENTS



(8) Interest Rate Hedges



In the normal course of business, we are exposed to the effect of interest
rate changes. We limit our interest rate risk by following established risk management policies and procedures including the use of derivatives. For interest rate exposures, derivatives are used to hedge against rate movements on our related debt.



To manage interest rate risk, we may employ options, forwards,
interest rate swaps, caps and floors or a combination thereof depending on the underlying exposure. We undertake a variety of borrowings from credit facilities, to medium- and long-term financings. To hedge against increases in interest cost, we use
interest rate instruments, typically interest rate swaps, to convert a portion of our variable-rate debt to fixed-rate debt.



On the date we enter into a derivative contract, we designate the derivative as a hedge of (a) the exposure to changes in the fair value of a recognized
asset or liability (fair-value hedge) or (b) the variability of cash flows that are to be received or paid in connection with (i) a recognized asset or liability or (ii) a forecasted transaction (cash flow hedges). Currently, we have only entered
into derivative contracts designated as cash flow hedges. These agreements involve the exchange of amounts based on a variable interest rate for amounts based on fixed interest rates over the life of the agreement based upon a notional amount. The
difference to be paid or received as the interest rates change is recognized as an adjustment to interest expense. The related amount payable to or receivable from counterparties is included in accounts payable and other liabilities. Changes in the
fair value of a derivative that is highly effective and that is designated and qualifies as a cash flow hedge, to the extent that the hedge is effective, are recorded in other comprehensive income, until earnings are affected by the variability of
cash flows of the hedged transaction (e.g. until periodic settlements of a variable-rate asset or liability are recorded in earnings). Any hedge ineffectiveness (which represents the amount by which the gains or losses of the derivative exceed the
gains or losses of the hedged instrument) is recorded in current-period earnings. Gains or losses from a fair-value hedge, as well as the related gains or losses from the hedged item are recognized currently in earnings.



We formally document all relationships between hedging instruments and hedged
items, as well as our risk-management objective and strategy for undertaking various hedge transactions. This process includes linking all derivatives that are designated as cash flow hedges to (1) specific assets and liabilities on the balance
sheet or (2) specific firm commitments or forecasted transactions. We also formally assess (both at the hedges inception and on an ongoing basis) whether the derivatives that are used in hedging transactions have been highly effective in
offsetting changes in the cash flows of hedged items and whether those derivatives may be expected to remain highly effective in future periods. When it is determined that a derivative is not (or has ceased to be) highly effective as a hedge, we
discontinue hedge accounting prospectively, as discussed below.



We discontinue hedge accounting prospectively when (1) we determine that the derivative is no longer effective in offsetting changes in the cash flows of a hedged item (including hedged items such as firm commitments or forecasted
transactions); (2) the derivative expires or is sold, terminated, or exercised; (3) it is no longer probable that the forecasted transaction will occur; (4) a hedged firm commitment no longer meets the definition of a firm commitment; or (5)
management determines that designating the derivative as a hedging instrument is no longer appropriate.



When we discontinue hedge accounting because it is no longer probable that the forecasted transaction will occur in the originally expected period, the
gain or loss on the derivative remains in accumulated other comprehensive income and is reclassified into earnings when the forecasted transaction affects earnings. However, if it is probable that a forecasted transaction will not occur by the end
of the originally specified time period or within an additional two-month period of time thereafter, the gains and losses that were accumulated in other comprehensive income will be recognized immediately in earnings. In all situations in which
hedge accounting is discontinued and the derivative remains outstanding, we will carry the derivative at its fair value on the balance sheet, recognizing changes in the fair value in current-period earnings.



To determine the fair value of derivative instruments, we use a variety of
methods and assumptions that are based on market conditions and risks existing at each balance sheet date. For our derivatives, standard market conventions and techniques such as discounted cash flow analysis, option pricing models, replacement
cost, and termination cost are used to determine fair value. All methods of assessing fair value result in a general approximation of value, and such value may never actually be realized.



F-26



---

##### Table of Contents

##### Index to Financial Statements

PRENTISS PROPERTIES TRUST

NOTES TO CONSOLIDATED

FINANCIAL STATEMENTS



Over time, the unrealized gains and losses held in accumulated other
comprehensive income will be reclassified to earnings. This reclassification is consistent with when the hedged items are recognized in earnings. Within the next twelve months, we expect to reclassify to earnings approximately $1.9 million of
unrealized losses and $987,000 of unrealized gains of the current balances held in accumulated other comprehensive income.



The following table summarizes the notional values and fair values of our derivative financial instruments at December 31, 2004. The notional value
provides an indication of the extent of our involvement in these instruments as of the balance sheet date, but does not represent exposure to credit, interest rate or market risks.



|                  |  |                       |  |                                                  |  |                |  |                |        |  
|----------------- |  | --------------------- |  | ------------------------------------------------ |  | -------------- |  | -------------- | ------ | -
|Notional Amount   |  | Swap RatePaid (Fixed) |  | Swap Rate Received(Variable) atDecember 31, 2004 |  | Swap Maturity  |  | Fair Value     |       
|                  |  |                       |  |                                                  |  |                |  | (in thousands) |       
|$ 25.0 million    |  | 4.345%                |  | 2.400%                                           |  | July 2005      |  | $              | (212   | )
|$ 15.0 million    |  | 4.345%                |  | 2.400%                                           |  | July 2005      |  |                | (127   | )
|$ 20.0 million    |  | 5.985%                |  | 2.400%                                           |  | March 2006     |  |                | (676   | )
|$ 30.0 million    |  | 5.990%                |  | 2.400%                                           |  | March 2006     |  |                | (1,015 | )
|$ 50.0 million    |  | 2.270%                |  | 2.400%                                           |  | August 2007    |  |                | 1,500  |  
|$ 25.0 million    |  | 2.277%                |  | 2.400%                                           |  | August 2007    |  |                | 746    |  
|$ 70.0 million(1) |  | 4.139%                |  | 2.400%                                           |  | August 2008    |  |                | (1,136 | )
|$ 30.0 million    |  | 3.857%                |  | 2.400%                                           |  | September 2008 |  |                | (175   | )
|$ 30.0 million    |  | 3.819%                |  | 2.400%                                           |  | October 2008   |  |                | (134   | )
|$ 20.0 million    |  | 3.819%                |  | 2.400%                                           |  | October 2008   |  |                | (89    | )
|$ 50.0 million    |  | 3.935%                |  | 2.400%                                           |  | May 2009       |  |                | (286   | )
|$ 30.0 million    |  | 3.443%                |  | 2.400%                                           |  | October 2009   |  |                | 558    |  
|                  |  |                       |  |                                                  |  |                |  |                |        |  
|Total             |  |                       |  |                                                  |  |                |  | $              | (1,046 | )
|                  |  |                       |  |                                                  |  |                |  |                |        |  

---

|(1) | The interest rate swap agreement was executed by our Prentiss Office Investors, L.P. joint venture.
|--- | ---------------------------------------------------------------------------------------------------



Cash payments made under our interest rate hedges exceeded cash receipts from
our interest rate hedges by $10.6 million, $9.7 million and $8.2 million for the years ended December 31, 2004, 2003, and 2002 respectively.



(9) Accounts Payable and Other Liabilities



Accounts payable and other liabilities consisted of the following at December 31, 2004 and 2003:



|                                               |  |                |         |      |   |       
|---------------------------------------------- |  | -------------- | ------- | ---- | - | ------
|                                               |  | (in thousands)
|                                               |  | 2004           |         | 2003
|Accrued interest expense                       |  | $              | 5,685   |      | $ | 5,618 
|Accrued real estate taxes                      |  |                | 28,178  |      |   | 24,764
|Advance rent and deposits                      |  |                | 20,010  |      |   | 18,067
|Deferred compensation liability                |  |                | 6,516   |      |   | 4,941 
|Below market lease values, net of amortization |  |                | 8,319   |      |   | 2,625 
|Other liabilities                              |  |                | 36,596  |      |   | 28,351
|                                               |  |                |         |      |   |       
|                                               |  | $              | 105,304 |      | $ | 84,366
|                                               |  |                |         |      |   |       



(10) Distributions Payable



In December 2004, we declared a cash distribution for the
fourth quarter of 2004 in the amount of $.56 per share, payable on January 7, 2005, to common shareholders of record on December 27, 2004. Additionally, it was determined that a distribution of $.56 per unit would be made to the partners of our
operating partnership and the holders of our Series D Convertible Preferred Shares. The distributions totaled $28.1 million and were paid January 7, 2005.



F-27



---

##### Table of Contents

##### Index to Financial Statements

PRENTISS PROPERTIES TRUST

NOTES TO CONSOLIDATED

FINANCIAL STATEMENTS



(11) Leasing Activities



Our future minimum lease payments (excluding operating expense reimbursements) to be received, under non-cancelable
operating leases in place at December 31, 2004, which expire on various dates through 2022, are as follows:



|                          |  |                |          
|------------------------- |  | -------------- | ---------
|Years ending December 31: |  | (in thousands)
|2005                      |  | $              | 298,648  
|2006                      |  |                | 274,115  
|2007                      |  |                | 236,013  
|2008                      |  |                | 190,159  
|2009                      |  |                | 157,308  
|Thereafter                |  |                | 347,152  
|                          |  |                |          
|                          |  | $              | 1,503,395
|                          |  |                |          



The geographic concentration of the
future minimum lease payments to be received is detailed as follows:



|                      |  |                |          
|--------------------- |  | -------------- | ---------
|Market                |  | (in thousands)
|Dallas/Fort Worth     |  | $              | 371,879  
|Metro. Washington, DC |  |                | 355,677  
|Chicago               |  |                | 254,918  
|Oakland               |  |                | 173,100  
|San Diego             |  |                | 137,346  
|Austin                |  |                | 88,220   
|Denver                |  |                | 42,214   
|Silicon Valley        |  |                | 31,640   
|Suburban Detroit      |  |                | 25,179   
|Los Angeles           |  |                | 23,222   
|                      |  |                |          
|                      |  | $              | 1,503,395
|                      |  |                |          



For the years ended
December 31, 2004, 2003, and 2002 no individual tenant accounted for more than 10% of our total rental income.



(12) Supplemental Disclosure of Non-Cash Investing and Financing Activities



Distributions totaling $28.1 million payable to holders of common shares, operating partnership units and Series D Convertible Preferred Shares were
declared in December 2004. The distributions were paid in January 2005.



Pursuant to our long-term incentive plan, during the year ended December 31, 2004, we issued 97,450 restricted share grants to various key employees. The shares, which had a market value of approximately $3.3 million based upon the per
share price on the date of grant, were classified as unearned compensation and recorded in the shareholders equity section of the consolidated balance sheet. The unearned compensation is amortized quarterly as compensation expense over the
three-year vesting period.



During the year ended December 31,
2004, 113,200 common shares were issued pursuant to the conversion of 113,200 common units of our operating partnership. The common shares had a market value of approximately $4.2 million on the conversion date.



During the year ended December 31, 2004, we marked-to-market our investments
in securities and our interest rate hedges. During the year ended December 31, 2004, we recorded unrealized gains of $191,000 and $6.7 million on our investments in securities and interest rate hedges, respectively.



F-28



---

##### Table of Contents

##### Index to Financial Statements

PRENTISS PROPERTIES TRUST

NOTES TO CONSOLIDATED

FINANCIAL STATEMENTS



During the year ended December 31, 2004, common shares in treasury increased
by $4.7 million, primarily related to an increase of $4.6 million attributable to 125,963 common shares surrendered as payment of the exercise price and statutory tax withholdings for certain share options exercised during the period and $129,000,
representing forfeiture of 4,000 restricted share grants.



In
connection with the acquisitions during the year ended December 31, 2004, we recorded other assets of $478,000, escrowed cash of $595,000 and assumed liabilities of approximately $2.8 million. As a result of property sales during the year ended
December 31, 2004, we removed approximately $3.3 million, $601,000 and $237,000 of receivables, other assets and liabilities, respectively.



(13) Related Party Transactions



On March 28, 2001, Prentiss Properties Resources, Inc. was incorporated under the General Corporation Law of the State of Delaware to serve as a Taxable
REIT Subsidiary and provide management services to our operating partnership. Our operating partnership held a 98% economic interest and 0% voting interest in Prentiss Properties Resources, Inc. Effective January 1, 2003, our operating partnership
acquired the remaining 2% interest in Prentiss Properties Resources, Inc., for gross consideration of approximately $67,000. As a result, beginning January 1, 2003, the accounts of Prentiss Properties Resources, Inc. are consolidated with and into
the accounts of our operating partnership.



Prentiss Properties
Resources, Inc. and its subsidiaries incurred certain personnel and other overhead-related expenses on behalf of our operating partnership. In 2002, the year prior to consolidation the overhead related expenses totaled $4.6 million.



(14) Capital Shares



Our board of trustees is authorized to provide for the issuance of 100,000,000 common shares and 20,000,000 preferred shares
in one or more series, to establish the number of shares in each series and to fix the designation, powers, preferences and rights of each such series and the qualifications, limitations or restrictions thereof.



As of December 31, 2004, 45,062,840 and 3,773,585 common shares and Series D
Convertible Preferred Shares were issued and outstanding, respectively. Of the 45,062,840 common shares, 80,952 common shares were held pursuant to our Key Employee Share Option Plan and classified as common shares in treasury on our consolidated
balance sheet. The Series D Convertible Preferred Shares are convertible at the holders option on a one-for-one basis into our common shares, subject to certain adjustments. Effective December 29, 2005, the Series D Convertible Preferred
Shares become redeemable at our option.



At the operating
partnership level, 46,397,771 common units were issued and outstanding at December 31, 2004. The units included 45,062,840 held by Prentiss Properties Trust and 1,334,931 held by limited partners of our operating partnership. The 1,334,931 common
units are redeemable at the option of the holder for a like number of common shares, or at our option, the cash equivalent thereof and are accounted for as minority interest in operating partnership on our consolidated balance sheet.



(15) Share Incentive Plans



We have two separate share-based incentive compensation plans both of which
are approved by our shareholders. The plans include (1) a trustees share incentive plan and (2) an employees share incentive plan. Under the plans, we are authorized to issue common shares or cash pursuant to awards granted in the form
of (1) non-qualified share options not intended to qualify under Section 422 of the Internal Revenue Code of 1986, as amended; (2) restricted or non-restricted shares; (3) share appreciation rights; and (4) performance shares. Awards may be granted
to selected employees and trustees of our company or an affiliate of our company.



F-29



---

##### Table of Contents

##### Index to Financial Statements

PRENTISS PROPERTIES TRUST

NOTES TO CONSOLIDATED

FINANCIAL STATEMENTS



The Trustees Plan



Under the trustees plan, we are authorized to issue awards with
respect to a maximum of 550,000 shares. Annually on the first business day of July we grant to each independent trustee non-qualified share options to purchase 7,500 of our common shares. The options are 100% vested at grant and, therefore, expensed
upon issuance. In 2004, we issued to the independent trustees, a total of 37,500 non-qualified share options.



On the first business day of each fiscal quarter, we issue to each independent trustee common shares having an aggregate value of $6,250, based on the per
share fair market value of the common shares on the date of grant. The common shares are 100% vested at grant and, therefore, expensed upon issuance. A total of 3,655, 4,300 and 4,625 common shares were granted pursuant to the plan during the years
ended December 31, 2004, 2003, and 2002, respectively.



At
December 31, 2004, we had 229,925 common shares that remain available for future issuance under our trustees plan.



The Employees Plan



Under the employees plan, we are authorized to issue awards with respect to a maximum of 6,500,000 common shares. Awards may be granted to employees
of our operating partnership or management service companies. No participant may be granted, in any calendar year, awards in the form of share options or share appreciation rights with respect to more than 390,000 common shares or restricted share
awards for more than 50,000 common shares. We have broad discretion in determining the vesting terms and other terms applicable to awards granted under the plan.



The exercise price of each option granted during 2004 was equal to the per share fair market value of our common shares on
the date of grant. Under the employees plan, during the years ended December 31, 2004, 2003 and 2002, we granted 240,650, 271,000 and 206,508 options which vest 33-1/3% per year on each anniversary of the date of grant, commencing with the
first anniversary of the date of grant. In addition during 2004, 2003 and 2002 we issued 97,450, 93,250 and 30,600 restricted shares which vest 100% on the third anniversary of the date of grant.



At December 31, 2004, we had 1,775,119 common shares that remain available
for future issuance under our employees plan.



F-30



---

##### Table of Contents

##### Index to Financial Statements

PRENTISS PROPERTIES TRUST

NOTES TO CONSOLIDATED

FINANCIAL STATEMENTS



A summary of the status of our options as of December 31, 2004, 2003 and 2002
and the changes during the years ended on those dates is presented below:



|                                                               |  |                              |  |                              |       |                              |           |                              |   |                              |  |                              |  |   |      
|-------------------------------------------------------------- |  | ---------------------------- |  | ---------------------------- | ----- | ---------------------------- | --------- | ---------------------------- | - | ---------------------------- |  | ---------------------------- |  | - | -----
|                                                               |  | 2004                         |  | 2003                         |       | 2002                        
|                                                               |  | # Shares ofunderlyingoptions |  | Weightedaverageexerciseprice |       | # Shares ofunderlyingoptions |           | Weightedaverageexerciseprice |   | # Shares ofunderlyingoptions |  | Weightedaverageexerciseprice
|Outstanding at beginning of the year                           |  | 984,456                      |  | $                            | 26.45 |                              | 1,421,514 |                              | $ | 24.93                        |  | 2,179,175                    |  | $ | 23.65
|Granted                                                        |  | 278,150                      |  | $                            | 34.10 |                              | 308,500   |                              | $ | 26.73                        |  | 244,000                      |  | $ | 28.43
|Exercised                                                      |  | 612,020                      |  | $                            | 26.00 |                              | 745,558   |                              | $ | 23.66                        |  | 997,661                      |  | $ | 23.01
|Forfeited                                                      |  | 3,335                        |  | $                            | 28.09 |                              |          |                              | $ |                             |  | 4,000                        |  | $ | 26.24
|Expired                                                        |  |                             |  | $                            |      |                              |          |                              | $ |                             |  |                             |  | $ |     
|                                                               |  |                              |  |                              |       |                              |           |                              |   |                              |  |                              |  |   |      
|Outstanding at end of year                                     |  | 647,251                      |  | $                            | 30.11 |                              | 984,456   |                              | $ | 26.45                        |  | 1,421,514                    |  | $ | 24.93
|Exercisable at end of year                                     |  | 161,435                      |  | $                            | 29.19 |                              | 440,625   |                              | $ | 26.62                        |  | 679,099                      |  | $ | 25.23
|                                                               |  |                              |  |                              |       |                              |           |                              |   |                              |  |                              |  |   |      
|Weighted-average fair value of options granted during the year |  | $1.84                        |  | $0.88                        |       | $1.19                       



The
fair value of each share option granted was estimated on the date of grant using the Black-Scholes option-pricing model with the following weighted-average assumptions:



|                        |  |       |   |  |       |   |  |       |  
|----------------------- |  | ----- | - |  | ----- | - |  | ----- | -
|                        |  | 2004  |   |  | 2003  |   |  | 2002  |  
|Expected term           |  | 5.00  |   |  | 5.00  |   |  | 5.00  |  
|Expected dividend yield |  | 6.57  | % |  | 8.32  | % |  | 7.81  | %
|Expected volatility     |  | 16.90 | % |  | 15.28 | % |  | 13.64 | %
|Risk-free interest rate |  | 3.13  | % |  | 3.01  | % |  | 4.27  | %



The
following table summarizes information about share options outstanding at December 31, 2004:



|                        |  |                              |  |                               |       |                                     |     |                              |         |                               |   |      
|----------------------- |  | ---------------------------- |  | ----------------------------- | ----- | ----------------------------------- | --- | ---------------------------- | ------- | ----------------------------- | - | -----
|                        |  | Options Outstanding          |  | Options Exercisable          
|Range of exercise price |  | Numberoutstandingat 12/31/04 |  | Weightedaverageexercise price |       | Weightedaverageremainingcontr. life |     | Numberexercisableat 12/31/04 |         | Weightedaverageexercise price
|$15.00 to $20.00        |  | 5,000                        |  | $                             | 20.00 |                                     | 1.8 |                              | 5,000   |                               | $ | 20.00
|$20.01 to $25.00        |  | 30,167                       |  | $                             | 24.08 |                                     | 4.0 |                              | 30,167  |                               | $ | 24.08
|$25.01 to $30.00        |  | 303,934                      |  | $                             | 27.10 |                                     | 7.8 |                              | 58,768  |                               | $ | 28.73
|$30.01 +                |  | 308,150                      |  | $                             | 33.83 |                                     | 9.1 |                              | 67,500  |                               | $ | 32.56
|                        |  |                              |  |                               |       |                                     |     |                              |         |                               |   |      
|$15.00 +                |  | 647,251                      |  | $                             | 30.11 |                                     | 8.2 |                              | 161,435 |                               | $ | 29.19
|                        |  |                              |  |                               |       |                                     |     |                              |         |                               |   |      



(16) Employee Benefit Plans



We have a 401(k) savings plan for our employees. Under
the plan, as amended, employees, age 21 and older, are eligible to participate in the plan after they have completed one year and 1,000 hours of service. Participants are immediately vested in their contributions, matching contributions and earnings
thereon.



We initially match 25% of an employees
contribution, not to exceed 25% of 6% of each employees wages. Our cost of the initial match totaled approximately $289,000, $271,000 and $306,000 for the years ended December 31, 2004, 2003 and 2002, respectively. We may also elect, in any
calendar year, to make a discretionary match to the plan. The amount paid pursuant to the discretionary match totaled approximately $0, $0 and $314,000 during the years ended December 31, 2004, 2003 and 2002, respectively.



F-31



---

##### Table of Contents

##### Index to Financial Statements

PRENTISS PROPERTIES TRUST

NOTES TO CONSOLIDATED

FINANCIAL STATEMENTS



We have registered 500,000 common shares in connection with a share purchase
plan. The share purchase plan enables eligible employees to purchase shares, subject to certain restrictions, of the company at a 15% discount to fair market value. A total of 29,683, 32,065 and 39,766 common shares were issued, in accordance with
the share purchase plan, during the years ended December 31, 2004, 2003, and 2002, respectively. At December 31, 2004, we have 181,566 shares available for future issuance.



During the year ended December 31, 2000, we adopted the Key Employee Share Option Plan. Pursuant to the plan, officers and
other selected key employees of our operating partnership or management service companies who earn bonuses have the option of deferring the payment of such bonuses. Such deferred compensation may be used to purchase various mutual funds and/or our
common shares. Pursuant to the participants election, we purchase shares on the open market and place them in a trust for the benefit of such participant. The trust may deliver to the participant shares or the fair market value of such shares
beginning six months from the date they were placed in the trust. The purpose of the deferred compensation plan is to provide a vehicle for the payment of compensation otherwise payable to the participants, in a form that will provide incentives and
rewards for meritorious performance and encourage the recipients continuance as our employees. During the 2000 plan year we provided a discount of 15% on the purchase price of our common shares purchased by participants in the plan. For each
plan year thereafter, we did not provide a discount on our common shares. The mutual fund investments are carried at their market value of $2.8 million and included as investments in securities on our consolidated balance sheet. The plan holds
80,952 of our common shares which we purchased in the open market on behalf of the participants. These are included as common shares in treasury on our consolidated balance sheet at December 31, 2004. The fair value of the plan assets totaling $5.9
million are included as deferred compensation liability in accounts payable and other liabilities on our consolidated balance sheet at December 31, 2004. As a result of the change in the fair value of our investments in securities, we recorded
unrealized gains of $191,000 and unrealized losses of $83,000 and $104,000 in other comprehensive income during the years ended December 31, 2004, 2003 and 2002, respectively.



As of February 12, 2003, we adopted two deferred compensation plans for our executive officers. The Executive Choice Share
Deferral Plan for Executives allows our executive officers to elect to defer the receipt of shares issued upon the exercise of options pursuant to our 1996 Share Incentive Plan. In addition, the Executive Choice Share Deferral Plan allows our
officers to defer receipt of restricted securities issued pursuant to our 1996 Share Incentive Plan and to defer receipt of our common shares received pursuant to our Key Employee Share Option Plan and our Share Purchase Plan. The Executive Choice
Deferred Compensation Plan provides a means for our executive officers to defer receipt of salary and bonus and property other than our common shares received under the Key Employee Share Option Plan.



We also adopted two deferred compensation plans for our trustees, similar to
those adopted for our executives. Under the Executive Choice Share Deferral Plan for Trustees, the independent members of our board of trustees may defer receipt of shares issued upon the exercise of options received under the Amended and Restated
Trustees Share Incentive Plan. Under the Executive Choice Deferred Compensation Plan for Trustees, our independent trustees may defer other compensation received pursuant to service on our board of trustees.



For each of the deferred compensation plans described above, the
executives or the trustees receipt of shares and other compensation is deferred by placing such shares or other compensation in an account, which is treated as an unfunded deferred compensation obligation of the company, and the employee
or trustee does not receive the shares or other compensation until he elects to receive the shares or other compensation at a future date. Each of the plans described above is intended solely as a means of deferring gain that would otherwise be
realized by our officers and trustees and is not intended to amend any other plan or program.



F-32



---

##### Table of Contents

##### Index to Financial Statements

PRENTISS PROPERTIES TRUST

NOTES TO CONSOLIDATED

FINANCIAL STATEMENTS



(17) Commitments and Contingencies



Legal Matters



We are subject to various legal proceedings and claims that arise in the ordinary course of business. These matters are
generally covered by insurance. We believe that the final outcome of such matters will not have a material adverse effect on our financial position, results of operations or liquidity.



Environmental Matters



We obtain environmental site assessments for all acquired properties prior to acquisition. The environmental site assessments have not revealed any
environmental condition, liability or compliance concern that we believe may have a material adverse effect on our business, assets or results or operations, nor are we aware of any such condition, liability or concern. It is possible that the
environmental site assessments relating to any one of our properties or properties to be acquired in the future do not reveal all environmental conditions, liabilities or compliance concerns or that there are material environmental conditions,
liabilities or compliance concerns that arose after the related environmental site assessment report was completed, of which we are otherwise unaware.



Insurance



We have and will keep in force comprehensive insurance, including liability, fire, workers compensation, extended coverage, rental loss and, when
available on reasonable commercial terms, flood, wind, earthquake and terrorism insurance, with policy specifications, limits, exclusions and deductibles customarily carried for similar properties. We currently maintain insurance to cover
environmental conditions and business interruption if and when they occur. This policy covers both governmental and third-party claims associated with the covered environmental conditions. Our real property insurance policies exclude earthquake
coverage for properties located within California. As a result, we maintain a separate $125 million blanket earthquake policy on the properties we own in Northern and Southern California. Our real property insurance policies exclude terrorism
coverage. However, we maintain a separate $100 million blanket stand-alone terrorism policy on the properties we own. Certain types of losses, however, generally of a catastrophic nature, such as acts of war, are either uninsurable or the cost of
obtaining insurance is so high that it is more prudent to accept the risk of loss. If more terrorists incidents occur, however, future insurance policies purchased by us may expressly exclude hostile acts, and it may become economically unfeasible
to obtain insurance covering terrorist attacks. In the event of such terrorist acts or other catastrophic losses, we would expect our insurance premiums to increase thereafter, which may have an adverse impact on our cash flow. We believe that our
properties as of the date of this filing are adequately insured in accordance with industry standards.



Financial Guarantees and Commitments



In connection with the disposition of a real estate property in May 2001, we entered into a financial guarantee with a maximum future potential payment of $1.4 million. The financial guarantee, provided to the third
party purchaser, guaranteed payment of an amount not to exceed the $1.4 million potential maximum if certain tenants, as defined in the purchase and sale agreement, fail to extend either their leases beyond the maturities of their current in-place
leases or to perform according to their in-place leases. An amount totaling $1.0 million was considered probable at the date of disposition and therefore, accrued during the year ended December 31, 2001. Pursuant to the financial guarantee, during
the year ended December 31, 2003, we paid the anticipated $1.0 million to the third party purchaser.



As a condition of the purchase and sale and as security for our guarantee, we provided to the title company at closing, two irrevocable letters of credit,
totaling $1.4 million, drawn on a financial institution and identifying the purchaser as beneficiary. One letter of credit totaling $1.0 million expired in 2003. The remaining balance on the second letter of credit totaling $189,000 at December 31,
2004 expires as follows:



|               |  |                   |    
|-------------- |  | ----------------- | ---
|(in thousands) |  | Letters of Credit
|2005           |  |                   | 63 
|2006           |  |                   | 126
|               |  |                   |    
|               |  | $                 | 189
|               |  |                   |    

|
|



F-33



---

##### Table of Contents

##### Index to Financial Statements

PRENTISS PROPERTIES TRUST

NOTES TO CONSOLIDATED

FINANCIAL STATEMENTS



(18) Recently Issued Accounting Pronouncements



In January 2003, the Financial Accounting Standards Board issued FASB
Interpretation No. 46, Consolidation of Variable Interest Entities. In December 2003, the Financial Standards Board issued a revision to FASB Interpretation No. 46, FASB Interpretation No. 46(R). The Interpretation, as revised, requires
consolidation of an entity by an enterprise if that enterprise will absorb a majority of the entitys expected losses if they occur, receive a majority of the entitys expected residual returns if they occur, or both. An entity subject to
this Interpretation is called a variable interest entity. The disclosure provisions of this Interpretation, as revised, are effective for financial statements issued after December 31, 2003. Per this Interpretation, as revised, a public entity, that
is not a small business issuer, with a variable interest entity to which the provisions of the Interpretation have not been applied as of December 24, 2003, shall apply this Interpretation no later than the end of the first reporting period that
ends after March 15, 2004. However, prior to the required application of this Interpretation, a public entity, that is not a small business issuer, shall apply this Interpretation to those entities that are considered to be special-purpose entities
no later than as of the end of the first reporting period that ends after December 15, 2003.



In November 2004, the EITF reached a consensus on an approach for evaluating whether the criteria in paragraph 42 of Statement 144 have been met for the purposes of classifying the results of operations of a component
of an entity that either has been disposed of or is classified as held for sale as discontinued operations. The consensus was incorporated into Appendix A (03-13A) of Issue No. 03-13, Applying the Conditions in Paragraph 42 of FASB Statement
No. 144, Accounting for the Impairment or Disposal of Long-Lived Assets, in Determining Whether to Report Discontinued Operations.



The guidance should be applied to a component of an enterprise that is either disposed of or classified as held for sale in fiscal periods beginning after
December 15, 2004. In accordance with the criteria prescribed in 03-13A, we evaluated our continuing involvement resulting from certain management agreements retained in relation to real estate sale transactions occurring during period and as a
result of our evaluation determined that the results of operations from the sold properties should be classified within discontinued operations on our consolidated statements of income.



In December 2004, the Financial Accounting Standards Board Issued Statement of Financial Accounting Standards No. 123(R),
Share-Based Payment, a revision to Statement of Financial Accounting Standards No. 123, Accounting for Stock-Based Compensation. The Statement supersedes APB Opinion No. 25, Accounting for Stock Issued to
Employees, and its related implementation guidance.



The
Statement which focuses primarily on accounting for transactions in which an entity obtains employee services in share-based payment transactions, establishes standards for the accounting for transactions in which an entity exchanges its equity
instruments for goods or services. It also addresses transactions in which an entity incurs liabilities in exchange for goods or services that are based on the fair value of the entitys equity instruments or that may be settled by the issuance
of those equity instruments.



The Statement requires a public
entity to measure the cost of employee services received in exchange for an award of equity instruments based on the grant-date fair value of the award (with limited exceptions). That cost will be recognized over the period during which an employee
is required to provide service in exchange for the awardthe requisite service period (usually the vesting period). No compensation cost is recognized for equity instruments for which employees do not render the requisite service.



The Statement, which is effective as of the beginning of the first interim
or annual reporting period that begins after June 15, 2005 for public entities that do not file as small business issuers, will not have a material impact on our financial statements.



In December 2004, the Financial Accounting Standards Board issued Statement of Financial Accounting Standards No. 153,
Accounting for Non-monetary Transactions. The statement requires non-monetary exchanges to be accounted for at fair value, recognizing any gain or loss, if the transactions meet a commercial-substance criterion and fair value is
determinable. The statement is effective for non-monetary transactions occurring in fiscal years beginning after June 15, 2005. We believe that the implementation of this standard will not have a material impact on our consolidated financial
position or results of operations.



F-34



---

##### Table of Contents

##### Index to Financial Statements

PRENTISS PROPERTIES TRUST

NOTES TO CONSOLIDATED

FINANCIAL STATEMENTS



(19) Segment Information



The table below presents information about income from continuing operations
and segment assets used by our chief operating decision maker as of and for the years ended December 31, 2004, 2003, and 2002, respectively.



For the Year Ended and As of December 31, 2004



|                                                                                                                                                                 |  |               |         |   |         |   |           |  |                     |         |                    |   |         |               |   |         |                                   |  |   |                   |   |  |   |         |   |  |   |           |  
|---------------------------------------------------------------------------------------------------------------------------------------------------------------- |  | ------------- | ------- | - | ------- | - | --------- |  | ------------------- | ------- | ------------------ | - | ------- | ------------- | - | ------- | --------------------------------- |  | - | ----------------- | - |  | - | ------- | - |  | - | --------- | -
|(in thousands)                                                                                                                                                   |  | Mid- Atlantic |         |   | Midwest |   | Southwest |  | Northern California |         | SouthernCalifornia |   |         | Totalsegments |   |         | Corporatenot allocableto segments |  |   | Consolidatedtotal |  
|Revenues:                                                                                                                                                        |  |               |         |   |         |   |           |  |                     |         |                    |   |         |               |   |         |                                   |  |   |                   |   |  |   |         |   |  |   |           |  
|Rental income                                                                                                                                                    |  | $             | 93,873  |   |         | $ | 59,079    |  | $                   | 127,758 |                    | $ | 36,623  |               | $ | 39,492  |                                   |  | $ | 356,825           |   |  | $ |        |   |  | $ | 356,825   |  
|Service business and other income                                                                                                                                |  |               | 3,713   |   |         |   | 1,035     |  |                     | 3,073   |                    |   | 2,862   |               |   | 982     |                                   |  |   | 11,665            |   |  |   | 2,244   |   |  |   | 13,909    |  
|                                                                                                                                                                 |  |               |         |   |         |   |           |  |                     |         |                    |   |         |               |   |         |                                   |  |   |                   |   |  |   |         |   |  |   |           |  
|Total revenues                                                                                                                                                   |  |               | 97,586  |   |         |   | 60,114    |  |                     | 130,831 |                    |   | 39,485  |               |   | 40,474  |                                   |  |   | 368,490           |   |  |   | 2,244   |   |  |   | 370,734   |  
|                                                                                                                                                                 |  |               |         |   |         |   |           |  |                     |         |                    |   |         |               |   |         |                                   |  |   |                   |   |  |   |         |   |  |   |           |  
|Expenses:                                                                                                                                                        |  |               |         |   |         |   |           |  |                     |         |                    |   |         |               |   |         |                                   |  |   |                   |   |  |   |         |   |  |   |           |  
|Property operating and maintenance                                                                                                                               |  |               | 21,687  |   |         |   | 13,470    |  |                     | 37,299  |                    |   | 10,766  |               |   | 8,459   |                                   |  |   | 91,681            |   |  |   |        |   |  |   | 91,681    |  
|Real estate taxes                                                                                                                                                |  |               | 7,580   |   |         |   | 12,004    |  |                     | 13,644  |                    |   | 3,110   |               |   | 3,068   |                                   |  |   | 39,406            |   |  |   |        |   |  |   | 39,406    |  
|General & administrative and personnel costs                                                                                                                     |  |               | 419     |   |         |   | 257       |  |                     | 278     |                    |   | 159     |               |   | (14     | )                                 |  |   | 1,099             |   |  |   | 10,704  |   |  |   | 11,803    |  
|Expenses of service business                                                                                                                                     |  |               | 2,496   |   |         |   | 1,110     |  |                     | 2,077   |                    |   | 1,716   |               |   | 1,429   |                                   |  |   | 8,828             |   |  |   | 1,170   |   |  |   | 9,998     |  
|Depreciation and amortization                                                                                                                                    |  |               | 21,029  |   |         |   | 15,902    |  |                     | 34,845  |                    |   | 6,716   |               |   | 13,463  |                                   |  |   | 91,955            |   |  |   | 360     |   |  |   | 92,315    |  
|                                                                                                                                                                 |  |               |         |   |         |   |           |  |                     |         |                    |   |         |               |   |         |                                   |  |   |                   |   |  |   |         |   |  |   |           |  
|Total expenses                                                                                                                                                   |  |               | 53,211  |   |         |   | 42,743    |  |                     | 88,143  |                    |   | 22,467  |               |   | 26,405  |                                   |  |   | 232,969           |   |  |   | 12,234  |   |  |   | 245,203   |  
|                                                                                                                                                                 |  |               |         |   |         |   |           |  |                     |         |                    |   |         |               |   |         |                                   |  |   |                   |   |  |   |         |   |  |   |           |  
|Interest expense                                                                                                                                                 |  |               |        |   |         |   |          |  |                     |        |                    |   |        |               |   |        |                                   |  |   |                  |   |  |   | 68,037  |   |  |   | 68,037    |  
|Amortization of deferred financing costs                                                                                                                         |  |               |        |   |         |   |          |  |                     |        |                    |   |        |               |   |        |                                   |  |   |                  |   |  |   | 2,343   |   |  |   | 2,343     |  
|Income from continuing operations before equity in income of unconsolidated joint ventures, loss on investments in securities, impairment and
minority interests |  |               | 44,375  |   |         |   | 17,371    |  |                     | 42,688  |                    |   | 17,018  |               |   | 14,069  |                                   |  |   | 135,521           |   |  |   | (80,370 | ) |  |   | 55,151    |  
|                                                                                                                                                                 |  |               |         |   |         |   |           | 
|Equity in income of unconsolidated joint ventures                                                                                                                |  |               | (100    | ) |         |   |          |  |                     | 2,529   |                    |   |        |               |   |        |                                   |  |   | 2,429             |   |  |   |        |   |  |   | 2,429     |  
|Loss on investments in securities                                                                                                                                |  |               |         |   |         |   |           |  |                     |         |                    |   |         |               |   |         |                                   |  |   |                   |   |  |   | (420    | ) |  |   | (420      | )
|Loss from impairment of mortgage loan                                                                                                                            |  |               | (2,900  | ) |         |   |          |  |                     |        |                    |   |        |               |   |        |                                   |  |   | (2,900            | ) |  |   |        |   |  |   | (2,900    | )
|Minority interests                                                                                                                                               |  |               |         |   |         |   |           |  |                     |         |                    |   |         |               |   |         |                                   |  |   |                   |   |  |   | (2,744  | ) |  |   | (2,744    | )
|                                                                                                                                                                 |  |               |         |   |         |   |           |  |                     |         |                    |   |         |               |   |         |                                   |  |   |                   |   |  |   |         |   |  |   |           |  
|Income from continuing operations                                                                                                                                |  | $             | 41,375  |   |         | $ | 17,371    |  | $                   | 45,217  |                    | $ | 17,018  |               | $ | 14,069  |                                   |  | $ | 135,050           |   |  | $ | (83,534 | ) |  | $ | 51,516    |  
|                                                                                                                                                                 |  |               |         |   |         |   |           |  |                     |         |                    |   |         |               |   |         |                                   |  |   |                   |   |  |   |         |   |  |   |           |  
|Additions to long-lived assets:                                                                                                                                  |  |               |         |   |         |   |           |  |                     |         |                    |   |         |               |   |         |                                   |  |   |                   |   |  |   |         |   |  |   |           |  
|Development/redevelopment                                                                                                                                        |  | $             | 108     |   |         | $ | 2,565     |  | $                   | 310     |                    | $ | 691     |               | $ | 11,673  |                                   |  | $ | 15,347            |   |  | $ |        |   |  | $ | 15,347    |  
|Purchase of real estate                                                                                                                                          |  |               |        |   |         |   | 32,590    |  |                     | 123,336 |                    |   | 100,491 |               |   | 32,821  |                                   |  |   | 289,238           |   |  |   |        |   |  |   | 289,238   |  
|Capital expenditures for in-service properties                                                                                                                   |  |               | 9,797   |   |         |   | 13,946    |  |                     | 17,756  |                    |   | 7,418   |               |   | 5,479   |                                   |  |   | 54,396            |   |  |   |        |   |  |   | 54,396    |  
|                                                                                                                                                                 |  |               |         |   |         |   |           |  |                     |         |                    |   |         |               |   |         |                                   |  |   |                   |   |  |   |         |   |  |   |           |  
|Total additions                                                                                                                                                  |  | $             | 9,905   |   |         | $ | 49,101    |  | $                   | 141,402 |                    | $ | 108,600 |               | $ | 49,973  |                                   |  | $ | 358,981           |   |  | $ |        |   |  | $ | 358,981   |  
|                                                                                                                                                                 |  |               |         |   |         |   |           |  |                     |         |                    |   |         |               |   |         |                                   |  |   |                   |   |  |   |         |   |  |   |           |  
|Investment balance in equity method investees                                                                                                                    |  | $             | 8,726   |   |         | $ |          |  | $                   | 4,217   |                    | $ |        |               | $ |        |                                   |  | $ | 12,943            |   |  | $ |        |   |  | $ | 12,943    |  
|                                                                                                                                                                 |  |               |         |   |         |   |           |  |                     |         |                    |   |         |               |   |         |                                   |  |   |                   |   |  |   |         |   |  |   |           |  
|Total assets                                                                                                                                                     |  | $             | 605,355 |   |         | $ | 437,173   |  | $                   | 698,093 |                    | $ | 282,059 |               | $ | 276,907 |                                   |  | $ | 2,299,587         |   |  | $ | 33,952  |   |  | $ | 2,333,539 |  
|                                                                                                                                                                 |  |               |         |   |         |   |           |  |                     |         |                    |   |         |               |   |         |                                   |  |   |                   |   |  |   |         |   |  |   |           |  



F-35



---

##### Table of Contents

##### Index to Financial Statements

PRENTISS PROPERTIES TRUST

NOTES TO CONSOLIDATED

FINANCIAL STATEMENTS



For the Year Ended and As of December 31, 2003



|                                                                                                                  |  |              |         |         |   |           |  |                     |         |                    |   |               |  |                                   |         |  |                   |           |  |   |         |   |  |   |           |  
|----------------------------------------------------------------------------------------------------------------- |  | ------------ | ------- | ------- | - | --------- |  | ------------------- | ------- | ------------------ | - | ------------- |  | --------------------------------- | ------- |  | ----------------- | --------- |  | - | ------- | - |  | - | --------- | -
|(in thousands)                                                                                                    |  | Mid-Atlantic |         | Midwest |   | Southwest |  | Northern California |         | SouthernCalifornia |   | Totalsegments |  | Corporatenot allocableto segments |         |  | Consolidatedtotal |          
|Revenues:                                                                                                         |  |              |         |         |   |           |  |                     |         |                    |   |               |  |                                   |         |  |                   |           |  |   |         |   |  |   |           |  
|Rental income                                                                                                     |  | $            | 89,220  |         | $ | 54,948    |  | $                   | 107,462 |                    | $ | 32,558        |  | $                                 | 30,530  |  | $                 | 314,718   |  | $ |        |   |  | $ | 314,718   |  
|Service business and other income                                                                                 |  |              | 3,973   |         |   | 2,085     |  |                     | 2,461   |                    |   | 2,504         |  |                                   | 991     |  |                   | 12,014    |  |   | 4,755   |   |  |   | 16,769    |  
|                                                                                                                  |  |              |         |         |   |           |  |                     |         |                    |   |               |  |                                   |         |  |                   |           |  |   |         |   |  |   |           |  
|Total revenues                                                                                                    |  |              | 93,193  |         |   | 57,033    |  |                     | 109,923 |                    |   | 35,062        |  |                                   | 31,521  |  |                   | 326,732   |  |   | 4,755   |   |  |   | 331,487   |  
|                                                                                                                  |  |              |         |         |   |           |  |                     |         |                    |   |               |  |                                   |         |  |                   |           |  |   |         |   |  |   |           |  
|Expenses:                                                                                                         |  |              |         |         |   |           |  |                     |         |                    |   |               |  |                                   |         |  |                   |           |  |   |         |   |  |   |           |  
|Property operating and maintenance                                                                                |  |              | 19,329  |         |   | 14,279    |  |                     | 31,488  |                    |   | 10,141        |  |                                   | 5,346   |  |                   | 80,583    |  |   |        |   |  |   | 80,583    |  
|Real estate taxes                                                                                                 |  |              | 6,733   |         |   | 8,854     |  |                     | 10,809  |                    |   | 2,626         |  |                                   | 2,252   |  |                   | 31,274    |  |   |        |   |  |   | 31,274    |  
|General & administrative and personnel costs                                                                      |  |              | 447     |         |   | 276       |  |                     | 274     |                    |   | 146           |  |                                   | 148     |  |                   | 1,291     |  |   | 9,697   |   |  |   | 10,988    |  
|Expenses of service business                                                                                      |  |              | 2,691   |         |   | 1,457     |  |                     | 1,812   |                    |   | 1,501         |  |                                   | 1,308   |  |                   | 8,769     |  |   | 1,744   |   |  |   | 10,513    |  
|Depreciation and amortization                                                                                     |  |              | 18,528  |         |   | 14,356    |  |                     | 26,704  |                    |   | 4,747         |  |                                   | 7,954   |  |                   | 72,289    |  |   | 194     |   |  |   | 72,483    |  
|                                                                                                                  |  |              |         |         |   |           |  |                     |         |                    |   |               |  |                                   |         |  |                   |           |  |   |         |   |  |   |           |  
|Total operating expenses                                                                                          |  |              | 47,728  |         |   | 39,222    |  |                     | 71,087  |                    |   | 19,161        |  |                                   | 17,008  |  |                   | 194,206   |  |   | 11,635  |   |  |   | 205,841   |  
|                                                                                                                  |  |              |         |         |   |           |  |                     |         |                    |   |               |  |                                   |         |  |                   |           |  |   |         |   |  |   |           |  
|Interest expense                                                                                                  |  |              |        |         |   |          |  |                     |        |                    |   |              |  |                                   |        |  |                   |          |  |   | 67,232  |   |  |   | 67,232    |  
|Amortization of deferred financing costs                                                                          |  |              |        |         |   |          |  |                     |        |                    |   |              |  |                                   |        |  |                   |          |  |   | 2,284   |   |  |   | 2,284     |  
|Income from continuing operations before equity in income of unconsolidated joint ventures and minority interests |  |              | 45,465  |         |   | 17,811    |  |                     | 38,836  |                    |   | 15,901        |  |                                   | 14,513  |  |                   | 132,526   |  |   | (76,396 | ) |  |   | 56,130    |  
|Equity in income of unconsolidated joint ventures                                                                 |  |              | 261     |         |   |          |  |                     | 2,294   |                    |   |              |  |                                   |        |  |                   | 2,555     |  |   |        |   |  |   | 2,555     |  
|Minority interests                                                                                                |  |              |        |         |   |          |  |                     |        |                    |   |              |  |                                   |        |  |                   |          |  |   | (10,227 | ) |  |   | (10,227   | )
|                                                                                                                  |  |              |         |         |   |           |  |                     |         |                    |   |               |  |                                   |         |  |                   |           |  |   |         |   |  |   |           |  
|Income from continuing operations                                                                                 |  | $            | 45,726  |         | $ | 17,811    |  | $                   | 41,130  |                    | $ | 15,901        |  | $                                 | 14,513  |  | $                 | 135,081   |  | $ | (86,623 | ) |  | $ | 48,458    |  
|                                                                                                                  |  |              |         |         |   |           |  |                     |         |                    |   |               |  |                                   |         |  |                   |           |  |   |         |   |  |   |           |  
|Additions to long-lived assets:                                                                                   |  |              |         |         |   |           |  |                     |         |                    |   |               |  |                                   |         |  |                   |           |  |   |         |   |  |   |           |  
|Development/redevelopment                                                                                         |  | $            | 1,292   |         | $ | 4,375     |  | $                   | 4,865   |                    | $ | 4             |  | $                                 | 106     |  | $                 | 10,642    |  | $ |        |   |  | $ | 10,642    |  
|Purchase of real estate                                                                                           |  |              | 52,158  |         |   | 31,375    |  |                     | 28,052  |                    |   | 6,062         |  |                                   | 67,086  |  |                   | 184,733   |  |   |        |   |  |   | 184,733   |  
|Capital expenditures for in-service properties                                                                    |  |              | 8,056   |         |   | 6,359     |  |                     | 13,173  |                    |   | 4,377         |  |                                   | 3,271   |  |                   | 35,236    |  |   |        |   |  |   | 35,236    |  
|                                                                                                                  |  |              |         |         |   |           |  |                     |         |                    |   |               |  |                                   |         |  |                   |           |  |   |         |   |  |   |           |  
|Total additions                                                                                                   |  | $            | 61,506  |         | $ | 42,109    |  | $                   | 46,090  |                    | $ | 10,443        |  | $                                 | 70,463  |  | $                 | 230,611   |  | $ |        |   |  | $ | 230,611   |  
|                                                                                                                  |  |              |         |         |   |           |  |                     |         |                    |   |               |  |                                   |         |  |                   |           |  |   |         |   |  |   |           |  
|Investment balance in equity method investees                                                                     |  | $            | 9,226   |         | $ |          |  | $                   | 3,882   |                    | $ |              |  | $                                 |        |  | $                 | 13,108    |  | $ |        |   |  | $ | 13,108    |  
|                                                                                                                  |  |              |         |         |   |           |  |                     |         |                    |   |               |  |                                   |         |  |                   |           |  |   |         |   |  |   |           |  
|Total assets                                                                                                      |  | $            | 619,207 |         | $ | 412,769   |  | $                   | 638,170 |                    | $ | 252,098       |  | $                                 | 244,004 |  | $                 | 2,166,248 |  | $ | 32,845  |   |  | $ | 2,199,093 |  
|                                                                                                                  |  |              |         |         |   |           |  |                     |         |                    |   |               |  |                                   |         |  |                   |           |  |   |         |   |  |   |           |  



F-36



---

##### Table of Contents

##### Index to Financial Statements

PRENTISS PROPERTIES TRUST

NOTES TO CONSOLIDATED

FINANCIAL STATEMENTS



For the Year Ended and As of December 31, 2002



|                                                                                                                                                  |  |              |         |         |   |           |  |                     |         |  |                    |         |   |               |   |                                   |   |  |                   |           |  |   |         |   |  |   |           |  
|------------------------------------------------------------------------------------------------------------------------------------------------- |  | ------------ | ------- | ------- | - | --------- |  | ------------------- | ------- |  | ------------------ | ------- | - | ------------- | - | --------------------------------- | - |  | ----------------- | --------- |  | - | ------- | - |  | - | --------- | -
|(in thousands)                                                                                                                                    |  | Mid-Atlantic |         | Midwest |   | Southwest |  | Northern California |         |  | SouthernCalifornia |         |   | Totalsegments |   | Corporatenot allocableto segments |   |  | Consolidatedtotal |          
|Revenues:                                                                                                                                         |  |              |         |         |   |           |  |                     |         |  |                    |         |   |               |   |                                   |   |  |                   |           |  |   |         |   |  |   |           |  
|Rental income                                                                                                                                     |  | $            | 81,275  |         | $ | 57,990    |  | $                   | 105,934 |  | $                  | 33,480  |   |               | $ | 28,808                            |   |  | $                 | 307,487   |  | $ |        |   |  | $ | 307,487   |  
|Service business and other income                                                                                                                 |  |              | 433     |         |   | 22        |  |                     | 1,034   |  |                    | 280     |   |               |   | (59                               | ) |  |                   | 1,710     |  |   | 2,676   |   |  |   | 4,386     |  
|                                                                                                                                                  |  |              |         |         |   |           |  |                     |         |  |                    |         |   |               |   |                                   |   |  |                   |           |  |   |         |   |  |   |           |  
|Total revenues                                                                                                                                    |  |              | 81,708  |         |   | 58,012    |  |                     | 106,968 |  |                    | 33,760  |   |               |   | 28,749                            |   |  |                   | 309,197   |  |   | 2,676   |   |  |   | 311,873   |  
|                                                                                                                                                  |  |              |         |         |   |           |  |                     |         |  |                    |         |   |               |   |                                   |   |  |                   |           |  |   |         |   |  |   |           |  
|Expenses:                                                                                                                                         |  |              |         |         |   |           |  |                     |         |  |                    |         |   |               |   |                                   |   |  |                   |           |  |   |         |   |  |   |           |  
|Property operating and maintenance                                                                                                                |  |              | 18,143  |         |   | 13,768    |  |                     | 27,500  |  |                    | 10,420  |   |               |   | 5,404                             |   |  |                   | 75,235    |  |   |        |   |  |   | 75,235    |  
|Real estate taxes                                                                                                                                 |  |              | 6,201   |         |   | 10,067    |  |                     | 14,011  |  |                    | 2,607   |   |               |   | 2,233                             |   |  |                   | 35,119    |  |   |        |   |  |   | 35,119    |  
|General & administrative and personnel costs                                                                                                      |  |              | 425     |         |   | 302       |  |                     | 379     |  |                    | 358     |   |               |   | 171                               |   |  |                   | 1,635     |  |   | 8,726   |   |  |   | 10,361    |  
|Depreciation and amortization                                                                                                                     |  |              | 14,585  |         |   | 12,047    |  |                     | 23,830  |  |                    | 4,321   |   |               |   | 7,075                             |   |  |                   | 61,858    |  |   | 86      |   |  |   | 61,944    |  
|                                                                                                                                                  |  |              |         |         |   |           |  |                     |         |  |                    |         |   |               |   |                                   |   |  |                   |           |  |   |         |   |  |   |           |  
|Total expenses                                                                                                                                    |  |              | 39,354  |         |   | 36,184    |  |                     | 65,720  |  |                    | 17,706  |   |               |   | 14,883                            |   |  |                   | 173,847   |  |   | 8,812   |   |  |   | 182,659   |  
|                                                                                                                                                  |  |              |         |         |   |           |  |                     |         |  |                    |         |   |               |   |                                   |   |  |                   |           |  |   |         |   |  |   |           |  
|Interest expense                                                                                                                                  |  |              |        |         |   |          |  |                     |        |  |                    |        |   |               |   |                                  |   |  |                   |          |  |   | 64,468  |   |  |   | 64,468    |  
|Amortization of deferred financing costs                                                                                                          |  |              |        |         |   |          |  |                     |        |  |                    |        |   |               |   |                                  |   |  |                   |          |  |   | 1,832   |   |  |   | 1,832     |  
|Income from continuing operations before equity in income of unconsolidated joint ventures and unconsolidated subsidiaries and minority
interests |  |              | 42,354  |         |   | 21,828    |  |                     | 41,248  |  |                    | 16,054  |   |               |   | 13,866                            |   |  |                   | 135,350   |  |   | (72,436 | ) |  |   | 62,914    |  
|Equity in income of unconsolidated joint ventures and unconsolidated subsidiaries                                                                 |  |              | 1,875   |         |   | 1,007     |  |                     | 2,282   |  |                    | (386    | ) |               |   | (146                              | ) |  |                   | 4,632     |  |   | (1,478  | ) |  |   | 3,154     |  
|Minority interests                                                                                                                                |  |              |        |         |   |          |  |                     |        |  |                    |        |   |               |   |                                  |   |  |                   |          |  |   | (10,450 | ) |  |   | (10,450   | )
|                                                                                                                                                  |  |              |         |         |   |           |  |                     |         |  |                    |         |   |               |   |                                   |   |  |                   |           |  |   |         |   |  |   |           |  
|Income from continuing operations                                                                                                                 |  | $            | 44,229  |         | $ | 22,835    |  | $                   | 43,530  |  | $                  | 15,668  |   |               | $ | 13,720                            |   |  | $                 | 139,982   |  | $ | (84,364 | ) |  | $ | 55,618    |  
|                                                                                                                                                  |  |              |         |         |   |           |  |                     |         |  |                    |         |   |               |   |                                   |   |  |                   |           |  |   |         |   |  |   |           |  
|Additions to long-lived assets:                                                                                                                   |  |              |         |         |   |           |  |                     |         |  |                    |         |   |               |   |                                   |   |  |                   |           |  |   |         |   |  |   |           |  
|Development/redevelopment                                                                                                                         |  | $            | 8,081   |         | $ | 10,977    |  | $                   | 4,172   |  | $                  | 108     |   |               | $ | 2,956                             |   |  | $                 | 26,294    |  | $ |        |   |  | $ | 26,294    |  
|Purchase of real estate                                                                                                                           |  |              | 55,152  |         |   |          |  |                     | 107,475 |  |                    |        |   |               |   | 10,597                            |   |  |                   | 173,224   |  |   |        |   |  |   | 173,224   |  
|Capital expenditures for in-service properties                                                                                                    |  |              | 4,313   |         |   | 2,329     |  |                     | 13,296  |  |                    | 4,215   |   |               |   | 3,034                             |   |  |                   | 27,187    |  |   |        |   |  |   | 27,187    |  
|                                                                                                                                                  |  |              |         |         |   |           |  |                     |         |  |                    |         |   |               |   |                                   |   |  |                   |           |  |   |         |   |  |   |           |  
|Total additions                                                                                                                                   |  | $            | 67,546  |         | $ | 13,306    |  | $                   | 124,943 |  | $                  | 4,323   |   |               | $ | 16,587                            |   |  | $                 | 226,705   |  | $ |        |   |  | $ | 226,705   |  
|                                                                                                                                                  |  |              |         |         |   |           |  |                     |         |  |                    |         |   |               |   |                                   |   |  |                   |           |  |   |         |   |  |   |           |  
|Investment balance in equity method investees                                                                                                     |  | $            | 9,763   |         | $ |          |  | $                   | 3,914   |  | $                  |        |   |               | $ |                                  |   |  | $                 | 13,677    |  | $ | 6,299   |   |  | $ | 19,976    |  
|                                                                                                                                                  |  |              |         |         |   |           |  |                     |         |  |                    |         |   |               |   |                                   |   |  |                   |           |  |   |         |   |  |   |           |  
|Total assets                                                                                                                                      |  | $            | 617,295 |         | $ | 383,559   |  | $                   | 639,416 |  | $                  | 267,050 |   |               | $ | 180,379                           |   |  | $                 | 2,087,699 |  | $ | 34,590  |   |  | $ | 2,122,289 |  
|                                                                                                                                                  |  |              |         |         |   |           |  |                     |         |  |                    |         |   |               |   |                                   |   |  |                   |           |  |   |         |   |  |   |           |  



F-37



---

##### Table of Contents

##### Index to Financial Statements

PRENTISS PROPERTIES TRUST

NOTES TO CONSOLIDATED

FINANCIAL STATEMENTS



(20) Discontinued Operations



In accordance with Statement of Financial Accounting Standards No. 144,
Accounting for the Impairment or Disposal of Long-Lived Assets, effective for financial statements issued for fiscal years beginning after December 15, 2001, income and gain/(loss) for real estate properties sold and real estate
properties held for sale are to be reflected in the consolidated statements of income as discontinued operations.



During the year ended December 31, 2004, we sold 4 industrial buildings containing approximately 91,000 net rentable square feet and 8 office buildings
containing approximately 1.2 million net rentable square feet. During the year ended December 31, 2003, we sold 11 office buildings containing approximately 983,000 net rentable square feet. During the year ended December 31, 2002, we sold 7
industrial buildings containing approximately 875,000 net rentable square feet and 3 office buildings containing approximately 194,000 net rentable square feet.



Concurrent with the disposition of 7 of the 8 office buildings sold during the year ended December 31, 2004, we entered into management agreements
under which we would perform management duties for a fee. We evaluated our continuing involvement resulting from the management agreements pursuant to the criteria outlined in EITF 03-13A, Applying the Conditions in Paragraph 42 of FASB
Statement No. 144 in Determining Whether to Report Discontinued Operations, and as a result of our evaluation determined that neither the continuing cash inflows nor cash outflows are significant and thus, the properties should be classified
within discontinued operations on our consolidated statements of income.



Below is a summary of our combined results of operations from the properties disposed of or held for sale included in discontinued operations during the periods presented.



|                                                         |      |                         |        |      |  |   |        |   |  |   |        |  
|-------------------------------------------------------- | ---- | ----------------------- | ------ | ---- |  | - | ------ | - |  | - | ------ | -
|Discontinued Operations (in
thousands)                   |      | Year Ended December 31, |       
|                                                         | 2004 |                         |        | 2003 |  |   | 2002   |  
|Rental income                                            |      | $                       | 14,037 |      |  | $ | 33,164 |   |  | $ | 48,767 |  
|Property revenues                                        |      |                         | 14,037 |      |  |   | 33,164 |   |  |   | 48,767 |  
|Interest and Other Income                                |      |                         | 19     |      |  |   | 47     |   |  |   |       |  
|                                                         |      |                         |        |      |  |   |        |   |  |   |        |  
|Total Revenues                                           |      |                         | 14,056 |      |  |   | 33,211 |   |  |   | 48,787 |  
|                                                         |      |                         |        |      |  |   |        |   |  |   |        |  
|Property operating and maintenance                       |      |                         | 4,046  |      |  |   | 11,392 |   |  |   | 15,476 |  
|Real estate taxes                                        |      |                         | 2,001  |      |  |   | 3,638  |   |  |   | 5,344  |  
|Depreciation and amortization                            |      |                         | 3,673  |      |  |   | 7,773  |   |  |   | 11,513 |  
|Property expenses                                        |      |                         | 9,720  |      |  |   | 22,803 |   |  |   | 32,333 |  
|Interest expense                                         |      |                         | 982    |      |  |   | 2,582  |   |  |   | 2,613  |  
|Loss on impairment of real estate                        |      |                         |       |      |  |   | (1,792 | ) |  |   | (2,855 | )
|                                                         |      |                         |        |      |  |   |        |   |  |   |        |  
|Income from discontinued operations                      |      | $                       | 3,354  |      |  | $ | 6,034  |   |  | $ | 10,966 |  
|                                                         |      |                         |        |      |  |   |        |   |  |   |        |  
|                                                         |      |                         |       
|Gain/(loss) from disposition of discontinued operations  |      |                         | 11,957 |      |  |   | (4,457 | ) |  |   | 8,430  |  
|Loss from debt defeasance related to sale of real estate |      |                         | (5,316 | )    |  |   |       |   |  |   |       |  
|Minority interest related to discontinued operations     |      |                         | (310   | )    |  |   | (53    | ) |  |   | (733   | )
|                                                         |      |                         |        |      |  |   |        |   |  |   |        |  
|Total Discontinued Operations                            |      | $                       | 9,685  |      |  | $ | 1,524  |   |  | $ | 18,663 |  
|                                                         |      |                         |        |      |  |   |        |   |  |   |        |  



F-38



---

##### Table of Contents

##### Index to Financial Statements

PRENTISS PROPERTIES TRUST

NOTES TO CONSOLIDATED

FINANCIAL STATEMENTS



(21) Selected Quarterly Financial Data (Unaudited)



The following schedule is a summary of the quarterly results of operations
for the years ended December 31, 2004, 2003 and 2002:



|                                    |  |                                               |        |               |   |              |  |               |        |       |   |        |  |   |        
|----------------------------------- |  | --------------------------------------------- | ------ | ------------- | - | ------------ |  | ------------- | ------ | ----- | - | ------ |  | - | -------
|                                    |  | (amounts in thousands, except per share data)
|                                    |  | FirstQuarter                                  |        | SecondQuarter |   | ThirdQuarter |  | FourthQuarter |        | Total
|Year ended December 31, 2004        |  |                                               |        |               |   |              |  |               |        |       |   |        |  |   |        
|Revenue                             |  | $                                             | 87,786 |               | $ | 90,550       |  | $             | 94,224 |       | $ | 98,174 |  | $ | 370,734
|Income from continuing operations   |  | $                                             | 13,769 |               | $ | 13,257       |  | $             | 13,941 |       | $ | 10,549 |  | $ | 51,516 
|Net income                          |  | $                                             | 16,999 |               | $ | 18,792       |  | $             | 12,554 |       | $ | 14,078 |  | $ | 62,423 
|Net income per common share-basic   |  | $                                             | 0.31   |               | $ | 0.38         |  | $             | 0.23   |       | $ | 0.27   |  | $ | 1.18   
|Net income per common share-diluted |  | $                                             | 0.30   |               | $ | 0.37         |  | $             | 0.23   |       | $ | 0.27   |  | $ | 1.18   
|                                    |  |                                               |        |               |  
|Year ended December 31, 2003        |  |                                               |        |               |   |              |  |               |        |       |   |        |  |   |        
|Revenue                             |  | $                                             | 80,278 |               | $ | 82,161       |  | $             | 83,049 |       | $ | 85,999 |  | $ | 331,487
|Income from continuing operations   |  | $                                             | 11,338 |               | $ | 11,391       |  | $             | 13,311 |       | $ | 12,418 |  | $ | 48,458 
|Net income                          |  | $                                             | 15,510 |               | $ | 8,512        |  | $             | 14,218 |       | $ | 21,177 |  | $ | 59,417 
|Net income per common share-basic   |  | $                                             | 0.34   |               | $ | 0.16         |  | $             | 0.30   |       | $ | 0.45   |  | $ | 1.27   
|Net income per common share-diluted |  | $                                             | 0.34   |               | $ | 0.16         |  | $             | 0.30   |       | $ | 0.45   |  | $ | 1.27   
|                                    |  |                                               |        |               |  
|Year ended December 31, 2002        |  |                                               |        |               |   |              |  |               |        |       |   |        |  |   |        
|Revenue                             |  | $                                             | 73,955 |               | $ | 79,156       |  | $             | 78,500 |       | $ | 80,262 |  | $ | 311,873
|Income from continuing operations   |  | $                                             | 14,527 |               | $ | 13,170       |  | $             | 15,575 |       | $ | 13,347 |  | $ | 55,618 
|Net income                          |  | $                                             | 18,220 |               | $ | 17,341       |  | $             | 22,894 |       | $ | 15,826 |  | $ | 74,281 
|Net income per common share-basic   |  | $                                             | 0.43   |               | $ | 0.40         |  | $             | 0.53   |       | $ | 0.35   |  | $ | 1.72   
|Net income per common share-diluted |  | $                                             | 0.43   |               | $ | 0.39         |  | $             | 0.53   |       | $ | 0.35   |  | $ | 1.71   



|(22) | Income Taxes
|---- | ------------



We have elected to be taxed as a REIT under sections 856 through 860 of the Internal Revenue Code of 1986, commencing with our taxable year ended December
31, 1996. To qualify as a REIT, we must meet a number of organizational and operational requirements, including a requirement that we currently distribute at least 90% of our adjusted taxable income to our shareholders. It is our current intention
to adhere to these requirements and maintain our REIT status. As a REIT, we generally will not be subject to corporate level federal income tax on taxable income we distribute currently to our shareholders. If we fail to qualify as a REIT in any
taxable year, we will be subject to federal income taxes at regular corporate rates (including any applicable alternative minimum tax) and may not be able to qualify as a REIT for four subsequent taxable years. Even if we qualify for taxation as a
REIT, we may be subject to certain state and local taxes on our income and property, and to federal income and excise taxes on our undistributed taxable income. In addition, taxable income from non-REIT activities managed through taxable REIT
subsidiaries is subject to federal, state and local income taxes.



F-39



---

##### Table of Contents

##### Index to Financial Statements

PRENTISS PROPERTIES TRUST

NOTES TO CONSOLIDATED

FINANCIAL STATEMENTS



Reconciliation between GAAP Net Income and Taxable Income



The following is a reconciliation of GAAP net income to taxable income for
the years ended December 31, 2004, 2003 and 2002:



|                                                                                 |  |      |         |   |      |   |        |      |  |   |        |  
|-------------------------------------------------------------------------------- |  | ---- | ------- | - | ---- | - | ------ | ---- |  | - | ------ | -
|(in thousands)                                                                   |  | 2004 |         |   | 2003 |   |        | 2002 | 
|GAAP net income                                                                  |  | $    | 62,423  |   |      | $ | 59,417 |      |  | $ | 74,281 |  
|GAAP loss (net income) of taxable subsidiaries included above                    |  |      | (1,397  | ) |      |   | (883   | )    |  |   | (651   | )
|                                                                                 |  |      |         |   |      |   |        |      |  |   |        |  
|GAAP net income from REIT operations                                             |  |      | 61,026  |   |      |   | 58,534 |      |  |   | 73,630 |  
|                                                                                 |  |      |         |   |      |   |        |      |  |   |        |  
|GAAP to tax adjustments:(1)                                                      |  |      |         |   |      |   |        |      |  |   |        |  
|Depreciation and amortization                                                    |  |      | 25,200  |   |      |   | 18,897 |      |  |   | 14,495 |  
|Gains and losses from capital transactions(2)                                    |  |      | (11,946 | ) |      |   | (4,783 | )    |  |   | (296   | )
|Straight-line rent adjustment, net of rents received in advance                  |  |      | (7,476  | ) |      |   | (7,948 | )    |  |   | (7,177 | )
|Capitalized operating expenses and interest cost related to development projects |  |      | (5,822  | ) |      |   | (182   | )    |  |   | (3,017 | )
|Interest income                                                                  |  |      | 484     |   |      |   | 482    |      |  |   | 481    |  
|Compensation expense                                                             |  |      | (2,162  | ) |      |   | (665   | )    |  |   | (4,542 | )
|Other differences, net                                                           |  |      | (103    | ) |      |   | 648    |      |  |   | 3,502  |  
|                                                                                 |  |      |         |   |      |   |        |      |  |   |        |  
|Total GAAP to tax adjustments                                                    |  |      | (1,825  | ) |      |   | 6,449  |      |  |   | 3,446  |  
|                                                                                 |  |      |         |   |      |   |        |      |  |   |        |  
|Adjusted taxable income subject to distribution requirement(3)                   |  | $    | 59,201  |   |      | $ | 64,983 |      |  | $ | 77,076 |  
|                                                                                 |  |      |         |   |      |   |        |      |  |   |        |  

---

|(1) | All adjustments to GAAP net income from REIT operations are net of amounts attributable to
minority interest.
|--- | -------------------------------------------------------------------------------------------------------------

|(2) | Represents the GAAP to tax difference for gains and losses including tax-deferred gain on
transactions qualifying under Section 1031 of the Internal Revenue Code.
|--- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(3) | The distribution requirement was 90% in each of the years ended December 31, 2004, 2003 and
2002.
|--- | -------------------------------------------------------------------------------------------------



Characterization of Distributions



The classification of distributions presented below
is determined out of our earnings and profits as defined by Section 316 of the Internal Revenue Code, which differs from federal taxable income.



The following table characterizes distributions paid per common share for the years ended December 31, 2004, 2003, and 2002:



|                  |  |      |       |  |       |   |  |      |       |  |       |   |  |   |       |  |       |  
|----------------- |  | ---- | ----- |  | ----- | - |  | ---- | ----- |  | ----- | - |  | - | ----- |  | ----- | -
|(in thousands)    |  | 2004 |       |  | 2003  |   |  | 2002 |      
|Ordinary income   |  | $    | 1.213 |  | 54.15 | % |  | $    | 1.426 |  | 63.66 | % |  | $ | 1.788 |  | 80.73 | %
|Return of capital |  | $    | 1.027 |  | 45.85 | % |  | $    | 0.814 |  | 36.34 | % |  | $ | 0.427 |  | 19.27 | %
|Capital gains     |  | $    | 0.00  |  | 0.00  | % |  | $    | 0.00  |  | 0.00  | % |  | $ | 0.00  |  | 0.00  | %
|                  |  |      |       |  |       |   |  |      |       |  |       |   |  |   |       |  |       |  
|                  |  | $    | 2.240 |  |       |   |  | $    | 2.240 |  |       |   |  | $ | 2.215 |  |       |  
|                  |  |      |       |  |       |   |  |      |       |  |       |   |  |   |       |  |       |  



F-40



---

##### Table of Contents

##### Index to Financial Statements

PRENTISS PROPERTIES TRUST

NOTES TO CONSOLIDATED

FINANCIAL STATEMENTS



Prentiss Properties Resources, Inc. was incorporated in March 2001 to serve
as a Taxable REIT Subsidiary and provide management and other services to our operating partnership and third-party clients. The management services business serves a broad base of clients, including major financial institutions and pension funds,
large corporate users, real estate advisory firms and real estate investment groups. Prentiss Properties Resources, Inc. had a deferred tax liability totaling approximately $550,000 at December 31, 2004 as detailed below:



|                                    |  |           |      |  
|----------------------------------- |  | --------- | ---- | -
|(in thousands)                      |  | Dr./(Cr.) |     
|Bad Debt Reserve                    |  | $         | 218  |  
|Accrued employee liabilities        |  |           | 28   |  
|Accrued depreciation & amortization |  |           | (149 | )
|Loss from partnership interests     |  |           | (559 | )
|other miscellaneous tax benefits    |  |           | 6    |  
|State Tax reserve                   |  |           | (94  | )
|                                    |  |           |      |  
|Total deferred tax liability        |  | $         | (550 | )
|                                    |  |           |      |  



(23) Pro Forma



The following unaudited pro forma consolidated statements of income
are presented as if all of the properties acquired between January 1, 2004 and December 31, 2004 had occurred January 1, 2004 and 2003.



These pro forma consolidated statements of income should be read in conjunction with our historical consolidated financial statements and notes thereto
for the year ended December 31, 2004, included in this Form 10-K. The pro forma consolidated statements of income are not necessarily indicative of what actual results would have been had the acquisitions actually occurred on January 1, 2004 and
2003 nor purport to represent our operations for future periods.



|                                                                                  |      |                                 |         |  |   |        
|--------------------------------------------------------------------------------- | ---- | ------------------------------- | ------- |  | - | -------
|Pro Forma (in
thousands)                                                          |      | For the Years EndedDecember 31,
|                                                                                  | 2004 |                                 | 2003   
|Total revenue                                                                     |      | $                               | 391,163 |  | $ | 374,749
|                                                                                  |      |                                
|Income applicable to common shareholders before discontinued operations           |      | $                               | 42,948  |  | $ | 51,646 
|                                                                                  |      |                                
|Net income applicable to common shareholders                                      |      | $                               | 52,633  |  | $ | 53,170 
|                                                                                  |      |                                
|Basic earnings per share:                                                         |      |                                 |         |  |   |        
|                                                                                  |      |                                
|Income applicable to common shareholders before discontinued operations           |      | $                               | 0.97    |  | $ | 1.29   
|Net income applicable to common shareholders                                      |      | $                               | 1.19    |  | $ | 1.33   
|Weighted average number of common shares outstanding                              |      |                                 | 44,330  |  |   | 40,068 
|                                                                                  |      |                                
|Diluted earnings per share:                                                       |      |                                 |         |  |   |        
|                                                                                  |      |                                
|Income applicable to common shareholders before discontinued operations           |      | $                               | 0.96    |  | $ | 1.28   
|Net income applicable to common shareholders                                      |      | $                               | 1.18    |  | $ | 1.32   
|Weighted average number of common shares and common share equivalents outstanding |      |                                 | 44,529  |  |   | 40,270 



F-41



---

##### Table of Contents

##### Index to Financial Statements

PRENTISS PROPERTIES TRUST

NOTES TO CONSOLIDATED

FINANCIAL STATEMENTS



The following unaudited pro forma consolidated statements of income are
presented as if all of the properties acquired between January 1, 2003 and December 31, 2003 had occurred January 1, 2003 and 2002.



These pro forma consolidated statements of income should be read in conjunction with our historical consolidated financial statements and notes thereto
for the year ended December 31, 2004, included in this Form 10-K. The pro forma consolidated statements of income are not necessarily indicative of what actual results would have been had the acquisitions actually occurred as of January 1, 2003 and
2002 nor does it purport to represent our operations for future periods.



|                                                                                  |      |                                 |         |  |   |        
|--------------------------------------------------------------------------------- | ---- | ------------------------------- | ------- |  | - | -------
|Pro Forma (in
thousands)                                                          |      | For the Years EndedDecember 31,
|                                                                                  | 2003 |                                 | 2002   
|Total revenue                                                                     |      | $                               | 345,621 |  | $ | 335,997
|                                                                                  |      |                                
|Income applicable to common shareholders before discontinued operations           |      | $                               | 50,417  |  | $ | 48,401 
|                                                                                  |      |                                
|Net income applicable to common shareholders                                      |      | $                               | 51,941  |  | $ | 67,064 
|                                                                                  |      |                                
|Basic earnings per share:                                                         |      |                                 |         |  |   |        
|                                                                                  |      |                                
|Income applicable to common shareholders before discontinued operations           |      | $                               | 1.26    |  | $ | 1.26   
|Net income applicable to common shareholders                                      |      | $                               | 1.30    |  | $ | 1.75   
|Weighted average number of common shares outstanding                              |      |                                 | 40,068  |  |   | 38,409 
|                                                                                  |      |                                
|Diluted earnings per share:                                                       |      |                                 |         |  |   |        
|                                                                                  |      |                                
|Income applicable to common shareholders before discontinued operations           |      | $                               | 1.25    |  | $ | 1.25   
|Net income applicable to common shareholders                                      |      | $                               | 1.29    |  | $ | 1.74   
|Weighted average number of common shares and common share equivalents outstanding |      |                                 | 40,270  |  |   | 38,649 



F-42



---

##### Table of Contents

##### Index to Financial Statements

PRENTISS PROPERTIES TRUST

NOTES TO CONSOLIDATED

FINANCIAL STATEMENTS



|(24) | Subsequent Events
|---- | -----------------



On January 13, 2005, Prentiss Office Investors, L.P. completed a five-year interest rate swap agreement in a notional amount of $20.0 million. The
interest rate swap effectively locks 30-day LIBOR at 4.00% on $20.0 million of our variable rate borrowings. The interest rate swap is effective February 1, 2005 and matures February 1, 2010.



On February 14, 2005, Prentiss Office Investors, L.P., which is owned 51% by
our operating partnership and its affiliates and 49% by Stichting Pensioenfonds ABP, acquired from an unrelated third party, a two building office complex with approximately 197,000 net rentable square feet. The properties are located in Herndon,
Virginia and were acquired for gross proceeds of $51.5 million. Each partner contributed their pro rata share of the purchase price to Prentiss Office Investors, L.P. for the acquisition. Amounts contributed from the operating partnership were
funded with proceeds from our revolving credit facility.



On
March 10, 2005, we entered into a Purchase Agreement pursuant to which a trust, which was formed by us on February 24, 2005 (the Trust), will issue $26,250,000 and $25,000,000 of trust preferred equity securities (the Capital
Securities) to each of Taberna Preferred Funding I, Ltd. and Merrill Lynch International, respectively in a private placement pursuant to an applicable exemption from registration. The transactions contemplated by the Purchase Agreement will
occur on or before March 15, 2005. The Capital Securities will mature on March 30, 2035 (all dates listed in this summary assume a closing date of March 15, 2005), but may be redeemed at our option beginning on March 30, 2010. The Capital Securities
will require quarterly distributions by the Trust to the holders of the Capital Securities, at a variable rate which will reset quarterly at the LIBOR rate plus 1.25%. Distributions will be cumulative and will accrue from the date of original
issuance but may be deferred by us for up to 20 consecutive quarterly periods.



The proceeds of the Capital Securities received by the Trust, along with proceeds of $1,586,000 received by the Trust from the issuance of common securities (the Common Securities) by the Trust to Prentiss
Properties Limited, Inc., a company subsidiary, will be used to purchase $52,836,000 of junior subordinated notes (the Notes), to be issued by Prentiss Properties Acquisition Partners, L.P. pursuant to an indenture (the
Indenture) to be entered into, as of the closing date provided above, between Prentiss Properties Acquisition Partners, L.P. and JPMorgan Chase Bank, N.A., as trustee.



The Notes will mature on March 30, 2035, but we may redeem the Notes, in whole or in part, beginning on March 30, 2010 in
accordance with the provisions of the Indenture. The Notes bear a variable rate which will reset quarterly at the LIBOR rate plus 1.25%. Interest is cumulative and will accrue from the date of original issuance but may be deferred by us for up to 20
consecutive quarterly periods.



F-43



---

##### Table of Contents

##### Index to Financial Statements

Schedule II



PRENTISS
PROPERTIES TRUST

VALUATIONS AND QUALIFYING ACCOUNTS

(dollars in thousands)



|                                 |  |                             |  |                                       |  |                           |   |  |                      
|-------------------------------- |  | --------------------------- |  | ------------------------------------- |  | ------------------------- | - |  | ---------------------
|Description                      |  | Balance Beginning of Period |  | Additions Charged to Costs & Expenses |  | Deductions from Reserve 1 |   |  | Balance End of Period
|Allowance for Doubtful Accounts: |  |                             |  |                                       |  |                           |   |  |                      
|Year Ended:                      |  |                             |  |                                       |  |                           |   |  |                      
|December 31, 2004                |  | 9,986                       |  | 3,068                                 |  | (6,847                    | ) |  | 6,207                
|December 31, 2003                |  | 7,712                       |  | 3,563                                 |  | (1,289                    | ) |  | 9,986                
|December 31, 2002                |  | 3,086                       |  | 5,428                                 |  | (802                      | ) |  | 7,712                

---

|1 | Balance written off as uncollectible.
|- | -------------------------------------



F-44



---

##### Table of Contents

##### Index to Financial Statements

Schedule III



PRENTISS
PROPERTIES TRUST

REAL ESTATE AND ACCUMULATED DEPRECIATION

December 31, 2004

(dollars in thousands)



|                           |  |                   |      |              |                            |              |   |                                           |  |                          |                                         |       |                         |       |                      |  |               |        |                           |   |        |  |   |         |  |   |        |  |            |  |            |  |    
|-------------------------- |  | ----------------- | ---- | ------------ | -------------------------- | ------------ | - | ----------------------------------------- |  | ------------------------ | --------------------------------------- | ----- | ----------------------- | ----- | -------------------- |  | ------------- | ------ | ------------------------- | - | ------ |  | - | ------- |  | - | ------ |  | ---------- |  | ---------- |  | ---
|Property name              |  | Market            |      | Encumbrances |                            | Initial cost |   | CostsCapitalized subsequentto acquisition |  |                          | Gross amount carried at close of period |       | Accumulateddepreciation |       | Year of construction |  | Date acquired |        | Depreciable lives (years)
|                           |  |                   | Land |              | Buildings and improvements |              |   | Land andimprovements                      |  | Building andimprovements |                                         | Total |                         |       |                      | 
|Barton Skyway I-IV         |  | Austin            |      | $            |                           |              | $ | 13,639                                    |  | $                        | 89,980                                  |       | $                       | 293   |                      |  | $             | 13,639 |                           | $ | 90,273 |  | $ | 103,912 |  | $ | 8,964  |  | 1999-2002  |  | (1)        |  | (2)
|Cielo Center               |  | Austin            |      |              |                           |              |   | 7,083                                     |  |                          | 40,334                                  |       |                         | 341   |                      |  |               | 7,083  |                           |   | 40,675 |  |   | 47,758  |  |   | 4,341  |  | 1984       |  | 9/21/2000  |  | (2)
|Spyglass Point             |  | Austin            |      |              |                           |              |   | 1,612                                     |  |                          | 6,465                                   |       |                         | 1     |                      |  |               | 1,612  |                           |   | 6,466  |  |   | 8,078   |  |   | 878    |  | 1998-1999  |  | (1)        |  | (2)
|123 North Wacker Drive     |  | Chicago           |      |              |                           |              |   | 13,163                                    |  |                          | 74,599                                  |       |                         | 6,615 |                      |  |               | 13,163 |                           |   | 81,214 |  |   | 94,377  |  |   | 9,522  |  | 1986       |  | 11/18/1999 |  | (2)
|410 Warrenville Road       |  | Chicago           |      |              |                           |              |   | 1,511                                     |  |                          | 4,131                                   |       |                         |      |                      |  |               | 1,511  |                           |   | 4,131  |  |   | 5,642   |  |   | 171    |  | 1999       |  | 5/8/2003   |  | (2)
|701 Warrenville Road       |  | Chicago           |      |              |                           |              |   | 1,564                                     |  |                          | 8,863                                   |       |                         | 6     |                      |  |               | 1,564  |                           |   | 8,869  |  |   | 10,433  |  |   | 1,424  |  | 1988       |  | 8/10/1998  |  | (2)
|1717 Deerfield Road        |  | Chicago           |      |              | 14,200                     |              |   | 3,237                                     |  |                          | 18,481                                  |       |                         | 239   |                      |  |               | 3,237  |                           |   | 18,720 |  |   | 21,957  |  |   | 3,746  |  | 1985       |  | 12/11/1996 |  | (2)
|Bannockburn Centre         |  | Chicago           |      |              | 25,838                     |              |   | 7,927                                     |  |                          | 23,835                                  |       |                         |      |                      |  |               | 7,927  |                           |   | 23,835 |  |   | 31,762  |  |   | 3,180  |  | 1999       |  | (1)        |  | (2)
|Chicago Industrial         |  | Chicago           |      |              | 11,630                     |              |   | 2,871                                     |  |                          | 17,615                                  |       |                         | 633   |                      |  |               | 2,871  |                           |   | 18,248 |  |   | 21,119  |  |   | 4,668  |  | 1987-1988  |  | Various    |  | (2)
|Corporate Lakes III        |  | Chicago           |      |              | 13,500                     |              |   | 3,100                                     |  |                          | 14,638                                  |       |                         | 5     |                      |  |               | 3,100  |                           |   | 14,643 |  |   | 17,743  |  |   | 567    |  | 1990       |  | 6/18/2003  |  | (2)
|Corporetum Office Campus   |  | Chicago           |      |              | 24,350                     |              |   | 7,607                                     |  |                          | 43,104                                  |       |                         | 2,082 |                      |  |               | 7,607  |                           |   | 45,186 |  |   | 52,793  |  |   | 8,447  |  | 1984-1987  |  | 5/6/1997   |  | (2)
|Lakeside Pointe I & II     |  | Chicago           |      |              | 20,000                     |              |   | 4,777                                     |  |                          | 21,224                                  |       |                         |      |                      |  |               | 4,777  |                           |   | 21,224 |  |   | 26,001  |  |   | 89     |  | 1990&1998  |  | 10/29/2004 |  | (2)
|OHare Plaza II            |  | Chicago           |      |              | 11,400                     |              |   | 3,854                                     |  |                          | 22,017                                  |       |                         | 342   |                      |  |               | 3,854  |                           |   | 22,359 |  |   | 26,213  |  |   | 4,511  |  | 1986       |  | 12/13/1996 |  | (2)
|One OHare Centre          |  | Chicago           |      |              | 39,112                     |              |   | 10,160                                    |  |                          | 57,514                                  |       |                         | 553   |                      |  |               | 10,160 |                           |   | 58,067 |  |   | 68,227  |  |   | 9,227  |  | 1984       |  | 8/27/1998  |  | (2)
|Salton                     |  | Chicago           |      |              |                           |              |   | 2,180                                     |  |                          | 5,351                                   |       |                         | (203  | )                    |  |               | 2,180  |                           |   | 5,148  |  |   | 7,328   |  |   | 494    |  | 2000-2001  |  | (1)        |  | (2)
|Bachman East & West        |  | Dallas/Fort Worth |      |              |                           |              |   | 2,133                                     |  |                          | 13,461                                  |       |                         | 211   |                      |  |               | 2,133  |                           |   | 13,672 |  |   | 15,805  |  |   | 2,751  |  | 1986       |  | 1996-1997  |  | (2)
|Burnett Plaza              |  | Dallas/Fort Worth |      |              | 66,000                     |              |   | 3,600                                     |  |                          | 87,950                                  |       |                         | 583   |                      |  |               | 3,600  |                           |   | 88,533 |  |   | 92,133  |  |   | 6,315  |  | 1983       |  | 3/7/2002   |  | (2)
|Cityplace Center           |  | Dallas/Fort Worth |      |              |                           |              |   | 18,953                                    |  |                          | 82,803                                  |       |                         | 82    |                      |  |               | 18,953 |                           |   | 82,885 |  |   | 101,838 |  |   | 1,435  |  | 1988       |  | 4/22/2004  |  | (2)
|Cottonwood Office Center   |  | Dallas/Fort Worth |      |              | 8,348                      |              |   | 1,735                                     |  |                          | 9,865                                   |       |                         | 94    |                      |  |               | 1,735  |                           |   | 9,959  |  |   | 11,694  |  |   | 2,000  |  | 1986       |  | 10/24/1996 |  | (2)
|IBM Call Center            |  | Dallas/Fort Worth |      |              | 14,014                     |              |   | 1,418                                     |  |                          | 6,063                                   |       |                         | 3     |                      |  |               | 1,418  |                           |   | 6,066  |  |   | 7,484   |  |   | 960    |  | 1998       |  | (1)        |  | (2)
|Lakeview Center            |  | Dallas/Fort Worth |      |              |                           |              |   | 753                                       |  |                          | 5,020                                   |       |                         | 20    |                      |  |               | 753    |                           |   | 5,040  |  |   | 5,793   |  |   | 674    |  | 2000       |  | (1)        |  | (2)
|Millennium Center          |  | Dallas/Fort Worth |      |              |                           |              |   | 989                                       |  |                          | 6,392                                   |       |                         | 605   |                      |  |               | 980    |                           |   | 7,006  |  |   | 7,986   |  |   | 921    |  | 1999       |  | (1)        |  | (2)
|Park West C2               |  | Dallas/Fort Worth |      |              | 32,926                     |              |   | 8,360                                     |  |                          | 29,640                                  |       |                         | 6,533 |                      |  |               | 9,696  |                           |   | 34,837 |  |   | 44,533  |  |   | 7,918  |  | 1989       |  | 9/5/1995   |  | (2)
|Park West C3               |  | Dallas/Fort Worth |      |              |                           |              |   | 6,000                                     |  |                          | 18,612                                  |       |                         |      |                      |  |               | 6,000  |                           |   | 18,612 |  |   | 24,612  |  |   | 891    |  | 1985       |  | 1/31/2003  |  | (2)
|Park West E1               |  | Dallas/Fort Worth |      |              | 12,100                     |              |   | 2,857                                     |  |                          | 16,499                                  |       |                         | 401   |                      |  |               | 2,857  |                           |   | 16,900 |  |   | 19,757  |  |   | 3,378  |  | 1982       |  | 10/23/1996 |  | (2)
|Park West E2               |  | Dallas/Fort Worth |      |              | 7,900                      |              |   | 2,079                                     |  |                          | 11,863                                  |       |                         | 16    |                      |  |               | 2,079  |                           |   | 11,879 |  |   | 13,958  |  |   | 2,429  |  | 1985       |  | 10/23/1996 |  | (2)
|Walnut Glen Tower          |  | Dallas/Fort Worth |      |              |                           |              |   | 4,300                                     |  |                          | 32,669                                  |       |                         | 3,517 |                      |  |               | 5,612  |                           |   | 34,874 |  |   | 40,486  |  |   | 12,612 |  | 1985       |  | 1/1/1994   |  | (2)
|WestPoint Office Building  |  | Dallas/Fort Worth |      |              | 12,610                     |              |   | 2,844                                     |  |                          | 12,165                                  |       |                         | 37    |                      |  |               | 2,844  |                           |   | 12,202 |  |   | 15,046  |  |   | 1,933  |  | 1998       |  | (1)        |  | (2)
|Carrara Place              |  | Denver            |      |              |                           |              |   | 4,687                                     |  |                          | 26,561                                  |       |                         | 556   |                      |  |               | 4,687  |                           |   | 27,117 |  |   | 31,804  |  |   | 4,626  |  | 1982       |  | 1/30/1998  |  | (2)
|Highland Court             |  | Denver            |      |              | 4,354                      |              |   | 1,588                                     |  |                          | 9,010                                   |       |                         | 58    |                      |  |               | 1,588  |                           |   | 9,068  |  |   | 10,656  |  |   | 1,598  |  | 1986       |  | 12/12/1997 |  | (2)
|Orchard Place I & II       |  | Denver            |      |              |                           |              |   | 1,531                                     |  |                          | 8,653                                   |       |                         | 193   |                      |  |               | 1,531  |                           |   | 8,846  |  |   | 10,377  |  |   | 1,191  |  | 1980       |  | 7/20/1999  |  | (2)
|PacifiCare Building        |  | Denver            |      |              | 12,060                     |              |   | 3,045                                     |  |                          | 17,392                                  |       |                         | 420   |                      |  |               | 3,045  |                           |   | 17,812 |  |   | 20,857  |  |   | 3,562  |  | 1983       |  | 12/20/1996 |  | (2)
|Panorama Point             |  | Denver            |      |              |                           |              |   | 1,241                                     |  |                          | 7,043                                   |       |                         | 246   |                      |  |               | 1,241  |                           |   | 7,289  |  |   | 8,530   |  |   | 1,262  |  | 1983       |  | 12/30/1997 |  | (2)
|Los Angeles Industrial     |  | Los Angeles       |      |              | 31,300                     |              |   | 6,429                                     |  |                          | 36,431                                  |       |                         | 1,474 |                      |  |               | 6,429  |                           |   | 37,905 |  |   | 44,334  |  |   | 10,220 |  | 1973-1983  |  | Various    |  | (2)
|2291 Wood Oak Drive        |  | Metro. Wash., DC  |      |              | 31,000                     |              |   | 6,827                                     |  |                          | 28,615                                  |       |                         |      |                      |  |               | 6,827  |                           |   | 28,615 |  |   | 35,442  |  |   | 956    |  | 1999       |  | 8/28/2003  |  | (2)
|2411 Dulles Corner Road    |  | Metro. Wash., DC  |      |              | 16,700                     |              |   | 3,973                                     |  |                          | 22,682                                  |       |                         | 88    |                      |  |               | 3,973  |                           |   | 22,770 |  |   | 26,743  |  |   | 4,515  |  | 1990       |  | 12/31/1996 |  | (2)
|3130 Fairview Park Drive   |  | Metro. Wash., DC  |      |              | 21,926                     |              |   | 3,141                                     |  |                          | 21,314                                  |       |                         |      |                      |  |               | 3,141  |                           |   | 21,314 |  |   | 24,455  |  |   | 3,109  |  | 1997-1999  |  | (1)        |  | (2)
|3141 Fairview Park Drive   |  | Metro. Wash., DC  |      |              | 12,800                     |              |   | 4,000                                     |  |                          | 15,980                                  |       |                         | 480   |                      |  |               | 4,007  |                           |   | 16,453 |  |   | 20,460  |  |   | 3,965  |  | 1988       |  | 2/22/1996  |  | (2)
|4401 Fair Lakes Court      |  | Metro. Wash., DC  |      |              | 3,200                      |              |   | 933                                       |  |                          | 5,232                                   |       |                         | 192   |                      |  |               | 933    |                           |   | 5,424  |  |   | 6,357   |  |   | 1,079  |  | 1988       |  | 1/14/1997  |  | (2)
|6600 Rockledge Drive       |  | Metro. Wash., DC  |      |              |                           |              |   |                                          |  |                          | 22,205                                  |       |                         | 87    |                      |  |               |       |                           |   | 22,292 |  |   | 22,292  |  |   | 3,160  |  | 1981       |  | 6/30/1998  |  | (2)
|7101 Wisconsin Avenue      |  | Metro. Wash., DC  |      |              | 20,095                     |              |   | 5,170                                     |  |                          | 29,298                                  |       |                         | 1,955 |                      |  |               | 5,170  |                           |   | 31,253 |  |   | 36,423  |  |   | 5,280  |  | 1975       |  | 12/30/1997 |  | (2)
|8521 Leesburg Pike         |  | Metro. Wash., DC  |      |              | 15,986                     |              |   | 2,130                                     |  |                          | 5,955                                   |       |                         | 6,168 |                      |  |               | 2,259  |                           |   | 11,994 |  |   | 14,253  |  |   | 3,544  |  | 1984       |  | 8/17/1994  |  | (2)
|12601 Fair Lakes Circle    |  | Metro. Wash., DC  |      |              |                           |              |   | 6,600                                     |  |                          | 45,474                                  |       |                         | 4     |                      |  |               | 6,600  |                           |   | 45,478 |  |   | 52,078  |  |   | 2,409  |  | 1995       |  | 11/18/2002 |  | (2)
|13825 Sunrise Valley Drive |  | Metro. Wash., DC  |      |              | 8,052                      |              |   | 2,099                                     |  |                          | 11,983                                  |       |                         | 341   |                      |  |               | 2,099  |                           |   | 12,324 |  |   | 14,423  |  |   | 2,457  |  | 1989       |  | 12/31/1996 |  | (2)
|Calverton Office Park      |  | Metro. Wash., DC  |      |              |                           |              |   | 2,885                                     |  |                          | 25,965                                  |       |                         | 1,479 |                      |  |               | 2,885  |                           |   | 27,444 |  |   | 30,329  |  |   | 4,954  |  | 1981-1987  |  | 8/27/1997  |  | (2)
|Campus Point               |  | Metro. Wash., DC  |      |              |                           |              |   | 5,730                                     |  |                          | 24,469                                  |       |                         | 216   |                      |  |               | 5,730  |                           |   | 24,685 |  |   | 30,415  |  |   | 2,309  |  | 1985       |  | 4/1/2001   |  | (2)
|Fairmont Building          |  | Metro. Wash., DC  |      |              |                           |              |   | 3,750                                     |  |                          | 17,656                                  |       |                         | 334   |                      |  |               | 3,750  |                           |   | 17,990 |  |   | 21,740  |  |   | 2,371  |  | 1964, 1997 |  | 11/4/1999  |  | (2)
|Greenwood Center           |  | Metro. Wash., DC  |      |              |                           |              |   | 3,092                                     |  |                          | 21,818                                  |       |                         | 218   |                      |  |               | 3,092  |                           |   | 22,036 |  |   | 25,128  |  |   | 2,054  |  | 1985       |  | 4/1/2001   |  | (2)
|Oakwood Center             |  | Metro. Wash., DC  |      |              |                           |              |   | 2,660                                     |  |                          | 12,224                                  |       |                         | 438   |                      |  |               | 2,660  |                           |   | 12,662 |  |   | 15,322  |  |   | 1,168  |  | 1982       |  | 4/1/2001   |  | (2)



F-45



---

##### Table of Contents

##### Index to Financial Statements

|                                 |  |                        |  |              |         |              |   |                                           |  |                                         |                      |  |                          |        |       |   |                         |  |                     |           |              |   |           |                           |   |         |  |                 |  |            |     |  |    
|-------------------------------- |  | ---------------------- |  | ------------ | ------- | ------------ | - | ----------------------------------------- |  | --------------------------------------- | -------------------- |  | ------------------------ | ------ | ----- | - | ----------------------- |  | ------------------- | --------- | ------------ | - | --------- | ------------------------- | - | ------- |  | --------------- |  | ---------- | --- |  | ---
|                                 |  |                        |  |              |         | Initial cost |   | Costscapitalizedsubsequent to acquisition |  | Gross amount carried at close of period |                      |  |                          |        |       |   |                         |  |                    
|Property name                    |  | Market                 |  | Encumbrances |         | Land         |   | Buildings andimprovements                 |  |                                         | Land andimprovements |  | Building andimprovements |        | Total |   | Accumulateddepreciation |  | Year ofconstruction |           | Dateacquired |   |           | Depreciable lives (years)
|Park West at Dulles Corner       |  | Metro. Wash., DC       |  |              |        |              |   | 3,000                                     |  |                                         | 15,221               |  |                          | 903    |       |   | 3,000                   |  |                     | 16,124    |              |   | 19,124    |                           |   | 1,228   |  | 1997            |  | 7/2/2001   |     |  | (2)
|Plaza 1900                       |  | Metro. Wash., DC       |  |              |        |              |   | 6,274                                     |  |                                         | 31,323               |  |                          | 520    |       |   | 6,274                   |  |                     | 31,843    |              |   | 38,117    |                           |   | 2,963   |  | 1989            |  | 4/1/2001   |     |  | (2)
|Research Office Center I-III     |  | Metro. Wash., DC       |  |              | 43,419  |              |   | 9,124                                     |  |                                         | 47,761               |  |                          | 189    |       |   | 9,106                   |  |                     | 47,968    |              |   | 57,074    |                           |   | 7,772   |  | 1986-1990, 2000 |  | 9/9/1997   | (1) |  | (2)
|Willow Oaks I-III                |  | Metro. Wash., DC       |  |              |        |              |   | 14,460                                    |  |                                         | 89,106               |  |                          | 375    |       |   | 14,460                  |  |                     | 89,481    |              |   | 103,941   |                           |   | 11,064  |  | 1986-2002       |  | 8/18/1998  | (1) |  | (2)
|Camino West Corporate Park       |  | San Diego              |  |              | 6,000   |              |   | 2,240                                     |  |                                         | 5,498                |  |                          |       |       |   | 2,240                   |  |                     | 5,498     |              |   | 7,738     |                           |   | 153     |  | 1991            |  | 11/21/2003 |     |  | (2)
|Carlsbad Airport Plaza           |  | San Diego              |  |              | 6,000   |              |   | 2,510                                     |  |                                         | 6,651                |  |                          |       |       |   | 2,510                   |  |                     | 6,651     |              |   | 9,161     |                           |   | 185     |  | 1987            |  | 11/21/2003 |     |  | (2)
|Carlsbad Pacific Center I-III    |  | San Diego              |  |              |        |              |   | 6,270                                     |  |                                         | 14,645               |  |                          | 482    |       |   | 6,270                   |  |                     | 15,127    |              |   | 21,397    |                           |   | 2,137   |  | 1986-2002       |  | 11/13/1997 | (1) |  | (2)
|Carlsbad Pacifica                |  | San Diego              |  |              |        |              |   | 1,532                                     |  |                                         | 6,129                |  |                          | 229    |       |   | 1,532                   |  |                     | 6,358     |              |   | 7,890     |                           |   | 1,090   |  | 1986            |  | 2/4/1998   |     |  | (2)
|Del Mar Gateway                  |  | San Diego              |  |              | 26,025  |              |   | 5,260                                     |  |                                         | 23,419               |  |                          | 160    |       |   | 5,260                   |  |                     | 23,579    |              |   | 28,839    |                           |   | 2,499   |  | 2000-2001       |  | (1)        |     |  | (2)
|Executive Center Del Mar         |  | San Diego              |  |              | 17,350  |              |   | 3,952                                     |  |                                         | 12,063               |  |                          | 302    |       |   | 3,952                   |  |                     | 12,365    |              |   | 16,317    |                           |   | 1,941   |  | 1998            |  | (1)        |     |  | (2)
|La Place Court                   |  | San Diego              |  |              | 9,000   |              |   | 2,932                                     |  |                                         | 9,364                |  |                          | 5      |       |   | 2,932                   |  |                     | 9,369     |              |   | 12,301    |                           |   | 261     |  | 1988            |  | 11/21/2003 |     |  | (2)
|Pacific Ridge Corporate Centre   |  | San Diego              |  |              | 14,500  |              |   | 6,218                                     |  |                                         | 12,617               |  |                          |       |       |   | 6,218                   |  |                     | 12,617    |              |   | 18,835    |                           |   | 352     |  | 1999            |  | 11/21/2003 |     |  | (2)
|Pacific View Plaza               |  | San Diego              |  |              | 5,000   |              |   | 1,835                                     |  |                                         | 7,300                |  |                          | 19     |       |   | 1,835                   |  |                     | 7,319     |              |   | 9,154     |                           |   | 204     |  | 1986            |  | 11/21/2003 |     |  | (2)
|Plaza I & II                     |  | San Diego              |  |              | 6,861   |              |   | 2,811                                     |  |                                         | 11,246               |  |                          | 338    |       |   | 2,811                   |  |                     | 11,584    |              |   | 14,395    |                           |   | 1,992   |  | 1988-1989       |  | 2/4/1998   |     |  | (2)
|San Diego Industrial             |  | San Diego              |  |              |        |              |   | 5,303                                     |  |                                         | 21,210               |  |                          | 865    |       |   | 5,303                   |  |                     | 22,075    |              |   | 27,378    |                           |   | 5,025   |  | 1985-1988       |  | Various    |     |  | (2)
|The Bluffs                       |  | San Diego              |  |              | 10,700  |              |   | 2,834                                     |  |                                         | 12,030               |  |                          | 14     |       |   | 2,834                   |  |                     | 12,044    |              |   | 14,878    |                           |   | 176     |  | 2002            |  | 5/12/2004  |     |  | (2)
|The Campus                       |  | San Diego              |  |              |        |              |   | 1,195                                     |  |                                         | 4,779                |  |                          | 245    |       |   | 1,195                   |  |                     | 5,024     |              |   | 6,219     |                           |   | 858     |  | 1988            |  | 2/4/1998   |     |  | (2)
|2101 Webster                     |  | San Francisco Bay Area |  |              | 45,853  |              |   | 2,577                                     |  |                                         | 47,966               |  |                          |       |       |   | 2,577                   |  |                     | 47,966    |              |   | 50,543    |                           |   | 276     |  | 1985            |  | 10/8/2004  |     |  | (2)
|Lake Merritt Tower I             |  | San Francisco Bay Area |  |              |        |              |   | 6,504                                     |  |                                         | 36,853               |  |                          | 187    |       |   | 6,504                   |  |                     | 37,040    |              |   | 43,544    |                           |   | 4,032   |  | 1990            |  | 8/31/2000  |     |  | (2)
|The Ordway                       |  | San Francisco Bay Area |  |              | 47,425  |              |   | 23,316                                    |  |                                         | 54,402               |  |                          | 1,251  |       |   | 23,316                  |  |                     | 55,653    |              |   | 78,969    |                           |   | 9,116   |  | 1970            |  | 5/21/1998  |     |  | (2)
|World Savings Center             |  | San Francisco Bay Area |  |              | 28,202  |              |   | 7,714                                     |  |                                         | 30,856               |  |                          | 2,274  |       |   | 7,714                   |  |                     | 33,130    |              |   | 40,844    |                           |   | 4,739   |  | 1985            |  | 7/29/1997  |     |  | (2)
|5500 Great America Parkway       |  | Santa Clara            |  |              |        |              |   | 8,886                                     |  |                                         | 19,261               |  |                          | 720    |       |   | 8,886                   |  |                     | 19,981    |              |   | 28,867    |                           |   | 211     |  | 1999            |  | 5/25/2004  |     |  | (2)
|One Northwestern Plaza           |  | Suburban Detroit       |  |              | 17,800  |              |   |                                          |  |                                         | 27,448               |  |                          | 505    |       |   |                        |  |                     | 27,953    |              |   | 27,953    |                           |   | 5,498   |  | 1989            |  | 10/23/1996 |     |  | (2)
|                                 |  |                        |  |              |         |              |   |                                           |  |                                         |                      |  |                          |        |       |   |                         |  |                     |           |              |   |           |                           |   |         |  |                 |  |            |     |  |    
|Total Operating Properties       |  |                        |  |              | 775,536 |              |   | 338,564                                   |  |                                         | 1,744,261            |  |                          | 47,539 |       |   | 341,321                 |  |                     | 1,789,043 |              |   | 2,130,364 |                           |   | 234,007 |  |                 |  |            |     |  |    
|                                 |  |                        |  |              |         |              |   |                                           |  |                                         |                      | 
|Construction in Progress         |  |                        |  |              |         |              |   |                                           |  |                                         |                      |  |                          |        |       |   |                         |  |                     |           |              |   |           |                           |   |         |  |                 |  |            |     |  |    
|High Bluff Ridge at Del Mar      |  | San Diego              |  |              | 8,929   |              |   | 10,856                                    |  |                                         | 11,540               |  |                          |        |       |   | 10,856                  |  |                     | 12,561    |              |   | 23,417    |                           |   |         |  |                 |  |            |     |  |    
|                                 |  |                        |  |              |         |              |   |                                           |  |                                         |                      | 
|Land Held for Future Development |  |                        |  |              |         |              |   | 53,132                                    |  |                                         | 5,882                |  |                          |        |       |   | 53,132                  |  |                     | 5,882     |              |   | 59,014    |                           |   |         |  |                 |  |            |     |  |    
|                                 |  |                        |  |              |         |              |   |                                           |  |                                         |                      |  |                          |        |       |   |                         |  |                     |           |              |   |           |                           |   |         |  |                 |  |            |     |  |    
|Total Real Estate                |  |                        |  | $            | 784,465 |              | $ | 402,552                                   |  | $                                       | 1,761,683            |  | $                        | 47,539 |       | $ | 405,309                 |  | $                   | 1,807,486 |              | $ | 2,212,795 |                           | $ | 234,007 |  |                 |  |            |     |  |    
|                                 |  |                        |  |              |         |              |   |                                           |  |                                         |                      |  |                          |        |       |   |                         |  |                     |           |              |   |           |                           |   |         |  |                 |  |            |     |  |    

---

|(1) | The real estate project or portion of real estate project was developed by the company.
|--- | ---------------------------------------------------------------------------------------

|(2) | Buildings & improvements - 30 to 40 years.
|--- | ------------------------------------------

|(3) | The aggregate cost for federal income tax purposes was approximately $2,261,981.
|--- | --------------------------------------------------------------------------------



F-46



---

##### Table of Contents

##### Index to Financial Statements

Operating Real Estate and Accumulated Depreciation



A summary of activity for operating real estate and accumulated depreciation for the years ended December 31, 2004, 2003 and 2002 is as
follows:



|                                                                                    |  |      |           |   |      |   |           |      |  |   |           |  
|----------------------------------------------------------------------------------- |  | ---- | --------- | - | ---- | - | --------- | ---- |  | - | --------- | -
|(in thousands)                                                                      |  | 2004 |           |   | 2003 |   |           | 2002 | 
|Operating real estate:                                                              |  |      |           |   |      |   |           |      |  |   |           |  
|Balance at beginning of the period                                                  |  | $    | 2,052,679 |   |      | $ | 1,932,028 |      |  | $ | 1,807,039 |  
|Beginning construction in progress moved to operating real estate during the period |  |      |          |   |      |   | 37,170    |      |  |   | 29,084    |  
|Additions to and improvement of real estate                                         |  |      | 227,587   |   |      |   | 149,380   |      |  |   | 150,554   |  
|Cost of operating real estate sold                                                  |  |      | (149,902  | ) |      |   | (65,899   | )    |  |   | (54,649   | )
|                                                                                    |  |      |           |   |      |   |           |      |  |   |           |  
|Balance at end of the period                                                        |  | $    | 2,130,364 |   |      | $ | 2,052,679 |      |  | $ | 1,932,028 |  
|                                                                                    |  |      |           |   |      |   |           |      |  |   |           |  
|Accumulated depreciation:                                                           |  |      |           |   |      |   |           |      |  |   |           |  
|Balance at beginning of the period                                                  |  | $    | 210,944   |   |      | $ | 178,792   |      |  | $ | 146,349   |  
|Depreciation expense                                                                |  |      | 45,513    |   |      |   | 43,677    |      |  |   | 42,229    |  
|Accumulated depreciation of real estate sold or retired                             |  |      | (22,450   | ) |      |   | (11,525   | )    |  |   | (9,786    | )
|                                                                                    |  |      |           |   |      |   |           |      |  |   |           |  
|Balance at end of the period                                                        |  | $    | 234,007   |   |      | $ | 210,944   |      |  | $ | 178,792   |  
|                                                                                    |  |      |           |   |      |   |           |      |  |   |           |  



F-47