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UNITED STATESSECURITIES AND EXCHANGE COMMISSIONWASHINGTON, D.C. 20549

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FORM 10-Q

|(Mark One)                           |  |                                                                     | 
|------------------------------------ |  | ------------------------------------------------------------------- | 
|                                     |  |                                                                     | 
|                                     |  | Quarterly Report Pursuant to Section 13 or 15(d) of the Securities  | 
|                                     |  | Exchange Act of
    1934                                            | 
|                                     |  |                                                                     | 
|                                     |  | For the quarterly period ended June 30, 2005                        | 
|                                     |  | 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 000-24407

BRANDYWINE OPERATING PARTNERSHIP, L.P.(Exact name of registrant as specified in its charter)

|Delaware                                                 | 23-2862640                          
|-------------------------------------------------------- | ------------------------------------
|State or other jurisdiction of                           | (I.R.S. Employer Identification No.)
|incorporation or organization                            |                                     
|                                                         |                                     
|401
       Plymouth Road, Plymouth Meeting, Pennsylvania | 19462                               
|(Address of principal executive offices)                 | (Zip Code)                          
|                                                         |                                     
|(610)
    325-5600                                      
|Registrant's
    telephone number                       



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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    No


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


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BRANDYWINE OPERATING PARTNERSHIP, L.P.

TABLE OF CONTENTS

PART I - FINANCIAL INFORMATION

|            |                                                                                                                                      | Page
|----------- | ------------------------------------------------------------------------------------------------------------------------------------ | ----
|            |                                                                                                                                      |     
|Item
    1. | Financial
    Statements (unaudited)                                                                                                 |     
|            |                                                                                                                                      |     
|            | Consolidated
    Balance Sheets as of June 30, 2005 and December 31, 2004                                                            | 3   
|            |                                                                                                                                      |     
|            | Consolidated
         Statements of Operations for the three- and six-month periods ended
    June 30, 2005 and 2004                 | 4   
|            |                                                                                                                                      |     
|            | Consolidated
         Statements of Other Comprehensive Income for the three- and six-month
    periods ended June 30, 2005 and 2004 | 5   
|            |                                                                                                                                      |     
|            | Consolidated
         Statements of Cash Flows for the six-month periods ended June 30, 2005
    and 2004                            | 6   
|            |                                                                                                                                      |     
|            | Notes
    to Unaudited Consolidated Financial Statements                                                                             | 7   
|            |                                                                                                                                      |     
|Item 2.     | Managements
    Discussion and Analysis of Financial Condition and Results of Operations                                            | 30  
|            |                                                                                                                                      |     
|Item 3.     | Quantitative
    and Qualitative Disclosures about Market Risk                                                                       | 42  
|            |                                                                                                                                      |     
|Item 4.     | Controls
    and Procedures                                                                                                          | 42  
|            |                                                                                                                                      |     
|            |                                                                                                                                      |     
|            | PART II - OTHER INFORMATION                                                                                                          |     
|            |                                                                                                                                      |     
|Item 1.     | Legal
    Proceedings                                                                                                                | 42  
|            |                                                                                                                                      |     
|Item 2.     | Unregistered
    Sales of Equity Securities and Use of Proceeds                                                                      | 42  
|            |                                                                                                                                      |     
|Item 3.     | Defaults
    Upon Senior Securities                                                                                                  | 43  
|            |                                                                                                                                      |     
|Item 4.     | Submission
    of Matters to a Vote of Security Holders                                                                              | 43  
|            |                                                                                                                                      |     
|Item 5.     | Other
    Information                                                                                                                | 43  
|            |                                                                                                                                      |     
|Item 6.     | Exhibits                                                                                                                             | 43  
|            |                                                                                                                                      |     
|            | Signatures                                                                                                                           | 44  

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PART I - FINANCIAL INFORMATION
Item 1. - Financial Statements

BRANDYWINE OPERATING
PARTNERSHIP, L.P.
CONDENSED
      CONSOLIDATED BALANCE SHEETS(unaudited
  and in thousands, except unit information)

|                                                                                                                                | June 30, |           | December 31, |  
|------------------------------------------------------------------------------------------------------------------------------- | -------- | --------- | ------------ | -
|                                                                                                                                | 2005     |           | 2004         |  
|                                                                                                                                |          |           |              |  
|ASSETS                                                                                                                          |          |           |              |  
|Real
    estate investments:                                                                                                    |          |           |              |  
|Operating
    properties                                                                                                        | $        | 2,515,399 |              | $
|Accumulated
    depreciation                                                                                                    |          | (356,416  | )            |  
|                                                                                                                                |          |           |              |  
|Operating
    real estate investments, net                                                                                      |          | 2,158,983 |              |  
|Construction-in-progress                                                                                                        |          | 213,246   |              |  
|Land
    held for development                                                                                                   |          | 85,708    |              |  
|                                                                                                                                |          |           |              |  
|Total
    real estate investments, net                                                                                          |          | 2,457,937 |              |  
|                                                                                                                                |          |           |              |  
|Cash
    and cash equivalents                                                                                                   |          | 9,321     |              |  
|Escrowed
    cash                                                                                                               |          | 18,090    |              |  
|Accounts
    receivable, net                                                                                                    |          | 8,736     |              |  
|Accrued
    rent receivable, net                                                                                                |          | 38,687    |              |  
|Marketable
    securities                                                                                                       |          | 661       |              |  
|Investment
    in real estate ventures, at equity                                                                               |          | 13,308    |              |  
|Deferred
    costs, net                                                                                                         |          | 34,447    |              |  
|Intangible
    assets, net                                                                                                      |          | 85,634    |              |  
|Other
    assets                                                                                                                |          | 39,088    |              |  
|                                                                                                                                |          |           |              |  
|Total
    assets                                                                                                                | $        | 2,705,909 |              | $
|                                                                                                                                |          |           |              |  
|LIABILITIES
    AND PARTNERS' EQUITY                                                                                            |          |           |              |  
|Mortgage
    notes payable                                                                                                      | $        | 508,189   |              | $
|Unsecured
    notes                                                                                                             |          | 636,534   |              |  
|Unsecured
    credit facility                                                                                                   |          | 265,000   |              |  
|Accounts
    payable and accrued expenses                                                                                       |          | 43,877    |              |  
|Distributions
    payable                                                                                                       |          | 27,583    |              |  
|Tenant
    security deposits and deferred rents                                                                                 |          | 18,417    |              |  
|Acquired
    below market leases, net of accumulated amortization of $4,527 and $2,341                                          |          | 36,520    |              |  
|Other
    liabilities                                                                                                           |          | 3,626     |              |  
|                                                                                                                                |          |           |              |  
|Total
    liabilities                                                                                                           |          | 1,539,746 |              |  
|                                                                                                                                |          |           |              |  
|Commitments
    and contingencies (Note 14)                                                                                     |          |           |              |  
|                                                                                                                                |          |           |              |  
|Redeemable
    limited partnership units at redemption value;                                                                   |          |           |              |  
|2,052,959
    and 2,061,459 issued and outstanding                                                                              |          | 62,923    |              |  
|Partners'
    Equity                                                                                                            |          |           |              |  
|7.50%
         Series D Preferred Mirror Units; 2,000,000 issued and oustanding in
    2005 and 2004                            |          | 47,912    |              |  
|7.375%
         Series E Preferred Mirror Units; 2,300,000 issued and oustanding in
    2005 and 2004                           |          | 55,538    |              |  
|General
         Partnership Capital, 55,777,093 and 55,292,752 units issued and outstanding
    in 2005 and 2004, respectively |          | 1,002,456 |              |  
|Accumulated
    other comprehensive loss                                                                                        |          | (2,666    | )            |  
|                                                                                                                                |          |           |              |  
|Total
    partners' equity                                                                                                      |          | 1,103,240 |              |  
|                                                                                                                                |          |           |              |  
|Total
    liabilities and partners' equity                                                                                      | $        | 2,705,909 |              | $
|                                                                                                                                |          |           |              |  

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

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BRANDYWINE OPERATING
PARTNERSHIP, L.P.
CONSOLIDATED STATEMENTS OF OPERATIONS(unaudited, in thousands,
    except per share information)

|                                                        | For the
    three-month periods |         | For the
    six-month periods |     
|------------------------------------------------------- | ------------------------------- | ------- | ----------------------------- | ----
|ended June 30,                                          | ended June 30,                 
|                                                        |                                
|                                                        | 2005                            |         |                               | 2004
|                                                        |                                 |         |                               |     
|Revenue:                                                |                                 |         |                               |     
|Rents                                                   | $                               | 81,788  |                               | $   
|Tenant reimbursements                                   |                                 | 11,078  |                               |     
|Other                                                   |                                 | 2,377   |                               |     
|                                                        |                                 |         |                               |     
|Total revenue                                           |                                 | 95,243  |                               |     
|Operating Expenses:                                     |                                 |         |                               |     
|Property operating expenses                             |                                 | 27,801  |                               |     
|Real estate taxes                                       |                                 | 9,683   |                               |     
|Depreciation and amortization                           |                                 | 27,948  |                               |     
|Administrative expenses                                 |                                 | 4,378   |                               |     
|                                                        |                                 |         |                               |     
|Total operating expenses                                |                                 | 69,810  |                               |     
|                                                        |                                 |         |                               |     
|Operating income                                        |                                 | 25,433  |                               |     
|Other Income (Expense):                                 |                                 |         |                               |     
|Interest income                                         |                                 | 687     |                               |     
|Interest expense                                        |                                 | (17,807 | )                             |     
|Equity in income of real estate ventures                |                                 | 993     |                               |     
|Net gain on sales of interests in real estate           |                                 | —       |                               |     
|                                                        |                                 |         |                               |     
|Income before minority interest                         |                                 | 9,306   |                               |     
|Minority interest attributable to continuing operations |                                 | (121    | )                             |     
|                                                        |                                 |         |                               |     
|Income from continuing operations                       |                                 | 9,185   |                               |     
|                                                        |                                 |         |                               |     
|Discontinued operations:                                |                                 |         |                               |     
|Loss from discontinued operations                       |                                 | —       |                               |     
|Net gain on disposition of discontinued operations      |                                 | —       |                               |     
|                                                        |                                 |         |                               |     
|Income (loss) from discontinued operations              |                                 | —       |                               |     
|                                                        |                                 |         |                               |     
|Net income                                              |                                 | 9,185   |                               |     
|Income allocated to Preferred Units                     |                                 | (1,998  | )                             |     
|Income allocated to Redeemable Units                    |                                 | —       |                               |     
|Preferred Unit redemption/conversion benefit            |                                 | —       |                               |     
|                                                        |                                 |         |                               |     
|Income allocated to Common Partnership Unitholders      | $                               | 7,187   |                               | $   
|                                                        |                                 |         |                               |     
|                                                        |                                 |         |                               |     
|Basic earnings per Common Partnership Unit:             |                                 |         |                               |     
|Continuing operations                                   | $                               | 0.12    |                               | $   
|Discontinued operations                                 |                                 | —       |                               |     
|                                                        |                                 |         |                               |     
|                                                        | $                               | 0.12    |                               | $   
|                                                        |                                 |         |                               |     
|Diluted earnings per Common Partnership Unit:           |                                 |         |                               |     
|Continuing operations                                   | $                               | 0.12    |                               | $   
|Discontinued operations                                 |                                 | —       |                               |     
|                                                        |                                 |         |                               |     
|                                                        | $                               | 0.12    |                               | $   
|                                                        |                                 |         |                               |     

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

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BRANDYWINE OPERATING PARTNERSHIP, L.P.
CONSOLIDATED STATEMENTS OF OTHER COMPREHENSIVE INCOME(unaudited, in thousands)

|                                                                                           | For
    the three-month period |       | For
    the six-month period |  
|------------------------------------------------------------------------------------------ | ------------------------------ | ----- | ---------------------------- | -
|ended June 30,                                                                             | ended June 30,                
|                                                                                           |                                |       |                              |  
|                                                                                           |                                | 2005  |                              |  
|                                                                                           |                                |       |                              |  
|Net Income                                                                                 | $                              | 9,185 |                              | $
|                                                                                           |                                |       |                              |  
|Other comprehensive income:                                                                |                                |       |                              |  
|Unrealized gain on derivative financial instruments                                        |                                | —     |                              |  
|Reclassification of realized losses on derivative financial instruments to operations      |                                | 113   |                              |  
|Unrealized gain (loss) on available-for-sale securities                                    |                                | 45    |                              |  
|Reclassification of realized losses (gains) on available for sale securities to operations |                                | —     |                              |  
|                                                                                           |                                |       |                              |  
|Total other comprehensive income                                                           |                                | 158   |                              |  
|                                                                                           |                                |       |                              |  
|Comprehensive Income                                                                       | $                              | 9,343 |                              | $
|                                                                                           |                                |       |                              |  

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

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BRANDYWINE OPERATING
PARTNERSHIP, L.P.CONDENSED CONSOLIDATED
STATEMENTS OF CASH FLOWS(unaudited and in thousands)

|                                                                                                  | Six-Month
    Period EndedJune 30, |         
|------------------------------------------------------------------------------------------------- | ---------------------------------- | --------
|                                                                                                  |                                    |         
|                                                                                                  | 2005                               |         
|                                                                                                  |                                    |         
|Cash flows from operating activities:                                                             |                                    |         
|Net income                                                                                        | $                                  | 18,876  
|Adjustments to reconcile net income to net
    cash from operating activities:                    |                                    |         
|Depreciation                                                                                      |                                    | 41,657  
|Amortization:                                                                                     |                                    |         
|Deferred
    financing costs                                                                      |                                    | 1,293   
|Deferred
       leasing costs                                                                     |                                    | 4,057   
|Acquired
    above (below) market rents                                                           |                                    | (787    
|Assumed
       lease intangibles                                                                  |                                    | 10,584  
|Deferred
    compensation costs                                                                   |                                    | 1,387   
|Straight-line rent                                                                                |                                    | (6,500  
|Provision for doubtful accounts                                                                   |                                    | 600     
|Real estate
       venture income in excess of distributions                                      |                                    | (647    
|Net gain
    on sale of interests in real estate                                                  |                                    | —       
|Minority
       interest                                                                          |                                    | 172     
|Changes in assets and liabilities:                                                                |                                    |         
|Accounts
    receivable                                                                           |                                    | 3,631   
|Other assets                                                                                      |                                    | 299     
|Accounts
    payable and accrued expenses                                                         |                                    | (10,399 
|Tenant security deposits and deferred rents                                                       |                                    | (1,629  
|Other liabilities                                                                                 |                                    | (89     
|                                                                                                  |                                    |         
|Net cash
    from operating activites                                                             |                                    | 62,505  
|                                                                                                  |                                    |         
|Cash
         flows from investing activities:                                                    |                                    |         
|Acquisition
       of properties                                                                  |                                    | (38,854 
|Sales of properties, net                                                                          |                                    | —       
|Capital expenditures                                                                              |                                    | (82,033 
|Investment
       in unconsolidated Real Estate Ventures                                          |                                    | (119    
|Escrowed
       cash                                                                              |                                    | (109    
|Cash distributions
       from unconsolidated Real Estate Ventures in excess of equity in income  |                                    | 226     
|Increase in cash due to consolidation of variable interest entities                               |                                    | —       
|Leasing costs                                                                                     |                                    | (5,448  
|                                                                                                  |                                    |         
|Net cash
       from investing activities                                                         |                                    | (126,337
|                                                                                                  |                                    |         
|Cash
         flows from financing activities:                                                    |                                    |         
|Proceeds
       from (repayments of) Credit Facility borrowings                                   |                                    | 113,000 
|Repayments
       of mortgage notes payable                                                       |                                    | (10,045 
|Payments of deferred financing costs                                                              |                                    | (146    
|Repayments
       on employee stock loans                                                         |                                    | 50      
|Exercise of share options                                                                         |                                    | 10,432  
|Proceeds
       from common partnership unit issuance, net                                        |                                    | —       
|Minority
       partner contributions                                                             |                                    | —       
|Repurchases
       of preferred and common partnership units                                      |                                    | (239    
|Distributions
       paid to preferred and common partnership unitholders                         |                                    | (53,070 
|Distributions
       to minority interest holders                                                 |                                    | (2,175  
|Distributions
       to outside joint venture partners of consolidated variable interest entities |                                    | —       
|                                                                                                  |                                    |         
|Net cash
       from financing activities                                                         |                                    | 57,807  
|                                                                                                  |                                    |         
|Decrease/increase
       in cash and cash equivalents                                             |                                    | (6,025  
|Cash and cash equivalents at beginning of period                                                  |                                    | 15,346  
|                                                                                                  |                                    |         
|Cash and cash equivalents at end of period                                                        | $                                  | 9,321   
|                                                                                                  |                                    |         
|                                                                                                  |                                    |         
|Supplemental
       Cash Flow Information:                                                        |                                    |         
|Cash paid for interest, net of interest capitalized                                               | $                                  | 25,923  

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

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BRANDYWINE OPERATING PARTNERSHIP, L.P.

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

JUNE 30, 2005

|1. | THE PARTNERSHIP
|-- | ---------------

Brandywine Operating Partnership, L.P. (the Partnership) is the entity through which Brandywine Realty Trust, a Maryland real estate investment trust (the Company), a self-administered and self-managed real estate investment trust, conducts its business and owns its assets. The Partnerships activities include acquiring, developing, redeveloping, leasing and managing office and industrial properties. The Companys common shares of beneficial interest are publicly traded on the New York Stock Exchange under the ticker symbol BDN.


The Companys
ownership interests in the Partnership consist of both general partner and limited
partner units (Units or Common Partnership Units). The
Partnership issued these Units to the Company in exchange for contributions to
the Partnership of the net proceeds from Brandywine Realty Trusts issuance
of its shares of beneficial interest or in connection with awards of shares of
beneficial interest by Brandywine Realty Trust to employees and trustees. The
number of Units owned by Brandywine Realty Trust, and the entitlements of these
Units to receive distributions and payments in liquidation, mirror the outstanding
shares of beneficial interest of Brandywine Realty Trust. As of June 30, 2005,
Brandywine Realty Trust owned 96.5% of the Partnerships outstanding Units,
excluding any preferred mirror Units issued to the Company in exchange for the
Companys
contribution of the net proceeds from its issuances of preferred shares of beneficial
interest. The remaining 3.5% of these Units is owned by limited partners. The
Partnership issued these Units to persons that contributed assets to the Partnership.
The Partnership is obligated to redeem each of these units, at the request of
the holder, for cash or one common share of the Company, at the option of the
Company. Pursuant to its Partnership Agreement, the Partnership reimburses the
Company
for all expenses incurred in its operations. The Partnership owns a 95% interest
in Brandywine Realty Services Corporation (the Management Partnership),
a taxable REIT subsidiary, which performs management and leasing services for
41 properties containing an aggregate of approximately 3.6 million net rentable
square feet (including four of the Companys Real Estate Ventures). As of
June 30, 2005, the Partnership also held ownership interests in nine unconsolidated
real estate ventures that contained approximately 1.6 million net rentable square
feet (the Real Estate Ventures) formed with third parties to develop
or own commercial properties.


As of June 30, 2005, the Partnership owned 223 office properties (excluding two office properties that are held by two consolidated real estate ventures), 24 industrial facilities and one mixed-use property (collectively, the Properties) that contained an aggregate of approximately 19.6 million net rentable square feet. The Properties are located in the office and industrial markets in and surrounding Philadelphia, Pennsylvania, New Jersey and Richmond, Virginia.


|2. | SUMMARY
    OF SIGNIFICANT ACCOUNTING POLICIES
|-- | ----------------------------------------------

Basis of Presentation

The consolidated financial statements have been prepared by the Partnership without audit except as to the balance sheet as of December 31, 2004, which has been derived from audited data, pursuant to the rules and regulations of the Securities and Exchange Commission. Certain information and footnote disclosures normally included in the financial statements prepared in accordance with accounting principles generally accepted in the United States of America have been condensed or omitted pursuant to such rules and regulations, although the Partnership believes that the included disclosures are adequate to make the information presented not misleading. In the opinion of management, all adjustments (consisting solely of normal recurring matters) for a fair statement of the financial position of the Partnership as of June 30, 2005, the results of its operations for the three- and six-month periods ended June 30, 2005 and 2004
 and its cash flows for the six-month periods ended June 30, 2005 and 2004 have been included. The results of operations for such interim periods are not necessarily indicative of the results for a full year. These consolidated financial statements should be read in conjunction with the Partnerships consolidated financial statements and footnotes included in the Partnerships 2004 Annual Report on Form 10-K. Certain prior period amounts have been reclassified to conform to the current period presentation.


Principles of Consolidation

The accompanying consolidated financial statements include all accounts of the Partnership and its majority-owned and/or controlled subsidiaries. All intercompany accounts and transactions have been eliminated in consolidation.


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BRANDYWINE
      OPERATING PARTNERSHIP, L.P.NOTES
      TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTSJUNE
      30, 2005

When the Partnership
    obtains an economic interest in an entity, the Partnership evaluates the
    entity to determine if the entity is deemed a variable interest entity (VIE), and if the Partnership is deemed to be the primary beneficiary, in accordance with FASB Interpretation No. 46R, Consolidation of Variable Interest Entities (FIN 46R). The Partnership consolidates the entities that are VIEs and of which the Partnership is deemed to be the primary beneficiary or non-VIEs which the Partnership controls. VIEs where the Partnership is not deemed to be the primary beneficiary or the entity is not deemed a VIE and the Partnership does not control the entity but has the ability to exercise significant influence are accounted for under the equity method, i.e. at cost, increased or decreased by the Partnerships
    share of earnings or losses, less distributions. The Partnership will reconsider
    its determination of whether an entity is a VIE and who the primary beneficiary
    is if certain events occur that are likely to cause a change in the original
    determinations.


Use of Estimates

The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management 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 revenue and expenses during the reporting period. Actual results could differ from those estimates. Management makes significant estimates regarding revenue, impairment of long-lived assets and the allowance for doubtful accounts.


Operating Properties

Operating properties are carried at historical cost less accumulated depreciation and impairment losses. The cost of operating properties reflects their purchase price or development cost. Costs incurred for the acquisition and renovation of an operating property are capitalized to the Partnerships investment in that property. Ordinary repairs and maintenance are expensed as incurred; major replacements and betterments, which improve or extend the life of the asset, are capitalized and depreciated over their estimated useful lives. Fully-depreciated assets are removed from the accounts.


Purchase Price Allocation

The Partnership allocates the purchase price of properties to net tangible and identified intangible assets acquired based on fair values. Above-market and below-market in-place lease values for acquired properties are recorded based on the present value (using an interest rate which reflects the risks associated with the leases acquired) of the difference between (i) the contractual amounts to be paid pursuant to the in-place leases and (ii) the Partnerships estimate of the fair market lease rates for the corresponding in-place leases, measured over a period equal to the remaining non-cancellable term of the lease. Capitalized above-market lease values are amortized as a reduction of rental income over the remaining non-cancellable terms of the respective leases. Capitalized below-market lease values are amortized as an increase to rental income over the remaining non-cancellable terms of the respective leases,
 including any fixed-rate renewal periods.


Other intangible assets also include amounts representing the value of tenant relationships and in-place leases based on the Partnerships evaluation of the specific characteristics of each tenants lease and the Partnerships overall relationship with the respective tenant. The Partnership estimates the cost to execute leases with terms similar to the remaining lease terms of the in-place leases, include leasing commissions, legal and other related expenses. This intangible asset is amortized to expense over the remaining term of the respective leases. Partnership estimates of value are made using methods similar to those used by independent appraisers or by using independent appraisals. Factors considered by the Partnership in their analysis include an estimate of the carrying costs during the expected lease-up periods considering current market conditions and costs to execute similar leases. The
 Partnership also considers information obtained about each property as a result of its pre-acquisition due diligence, marketing and leasing activities in estimating the fair value of the tangible and intangible assets acquired. In estimating carrying costs, the Partnership includes real estate taxes, insurance and other operating expenses and estimates of lost rentals at market rates during the expected lease-up periods, which primarily range from three to twelve months.


Characteristics
considered by the Partnership in allocating value to its tenant relationships
include the nature and extent of the Partnerships business relationship
with the tenant, growth prospects
for developing new business with the tenant,


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BRANDYWINE OPERATING PARTNERSHIP, L.P.NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTSJUNE 30, 2005

the tenants credit quality and expectations of lease renewals, among other factors. The value of tenant relationship intangibles is amortized over the remaining initial lease term and expected renewals, but in no event longer than the remaining depreciable life of the building. The value of in-place leases is amortized over the remaining non-cancellable term of the respective leases and any fixed-rate renewal periods.

In the event that a tenant terminates its lease, the unamortized portion of each intangible, including market rate adjustments, in-place lease values and tenant relationship values, would be charged to expense.


Revenue Recognition and Accounts Receivable

Rental revenue is recognized on the straight-line basis regardless of when payments are due. The cumulative difference between lease revenue recognized under the straight-line method and contractual lease payment terms is recorded as accrued rent receivable on the accompanying balance sheets. The straight-line rent adjustment increased revenue by approximately $3.2 million and $6.5 million for the three- and six-month periods ended June 30, 2005 and approximately $0.9 million and $2.8 million for the three- and six-month periods ended June 30, 2004. Tenant receivables and accrued rent receivables are carried net of the allowances for doubtful accounts of $4.7 million as of June 30, 2005 and $4.2 million as of December 31, 2004. The allowance is based on managements evaluation of the collectability of receivables, taking into account tenant specific considerations as well as the overall credit of the tenant
 portfolio. The leases also typically provide for tenant reimbursement of common area maintenance and other operating expenses. Tenant reimbursement revenue is recorded when earned, as the underlying expense of the Properties is incurred. Other income is recorded when earned and is primarily comprised of termination fees received from tenants, bankruptcy settlement fees, third party leasing commissions, and third party management fees. Other income includes net termination fees of $0.9 million and $4.9 million for the three- and six-month periods ended June 30, 2005, and $1.0 million and $1.1 million during the three- and six-month periods ended June 30, 2004. Deferred rental revenue represents rental revenue received from tenants prior to their due dates.


Equity-Based Compensation Plans

In December 2002, the Financial Accounting Standards Board issued SFAS 148 (SFAS 148),Accounting for Stock-Based Compensation — Transition and Disclosure. SFAS 148 amends SFAS 123 (SFAS 123),Accounting for Stock-Based Compensation, to provide alternative methods of transition for an entity that voluntarily adopts the fair value recognition method of recording stock option expense. SFAS 148 also amends the disclosure provisions of SFAS 123 and APB Opinion No. 28,Interim Financial Reporting, to require disclosure in the summary of significant accounting policies of the effects of an entitys accounting policy with respect to stock options on reported net income and earnings per share in annual and interim financial statements. The Partnership adopted SFAS 148 on a prospective basis for all grants subsequent to January 1, 2002.


Prior to 2002, the Partnership accounted for stock options issued by the Company under the recognition and measurement provisions of APB Opinion No. 25,Accounting for Stock Issued to Employees and Related Interpretations. The following table illustrates the effect on net income available to Common Partnership Units if the fair value based method had been applied to all outstanding and unvested awards in each period (in thousands, except per unit amounts):


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BRANDYWINE OPERATING PARTNERSHIP, L.P.NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTSJUNE 30, 2005

|                                                                                                                     |  | Three-month periods |       | Six-month periods |  
|-------------------------------------------------------------------------------------------------------------------- |  | ------------------- | ----- | ----------------- | -
|                                                                                                                     |  | ended June 30,      |       | ended June 30,    |  
|                                                                                                                     |  |                     |       |                   |  
|                                                                                                                     |  |                     | 2005  |                   |  
|                                                                                                                     |  |                     |       |                   |  
|Net income allocated to Common Partnership Unitholders, as reported                                                  |  | $                   | 7,187 |                   | $
|                                                                                                                     |  |                     |       |                   |  
|Add: Stock based compensation expense included in reported net income                                                |  |                     | 696   |                   |  
|Deduct:
    Total stock based compensation expense determined under fair value recognition method
    for all awards |  |                     | (813  | )                 |  
|                                                                                                                     |  |                     |       |                   |  
|Pro forma net income available to Common Partnership Unitholders                                                     |  | $                   | 7,070 |                   | $
|                                                                                                                     |  |                     |       |                   |  
|Earnings per Common Partnership Unit                                                                                 |  |                     |       |                   |  
|Basic - as reported                                                                                                  |  | $                   | 0.12  |                   | $
|                                                                                                                     |  |                     |       |                   |  
|Basic - pro forma                                                                                                    |  | $                   | 0.12  |                   | $
|                                                                                                                     |  |                     |       |                   |  
|Diluted - as reported                                                                                                |  | $                   | 0.12  |                   | $
|                                                                                                                     |  |                     |       |                   |  
|Diluted - pro forma                                                                                                  |  | $                   | 0.12  |                   | $
|                                                                                                                     |  |                     |       |                   |  

Accounting for Derivative Instruments and Hedging Activities

The Partnership accounts for its derivative instruments and hedging activities under SFAS No. 133 (SFAS 133), Accounting for Derivative Instruments and Hedging Activities, and its corresponding amendments under SFAS No. 138, Accounting
for Certain Derivative Instruments and Hedging Activities  An Amendment
of SFAS 133. SFAS 133 requires the Partnership to measure every derivative instrument (including certain derivative instruments embedded in other contracts) at fair value and record them in the balance sheet as either an asset or liability. For derivatives designated as fair value hedges, the changes in fair value of both the derivative instrument and the hedged item are recorded in earnings. For derivatives designated as cash flow hedges, the effective portions of changes in the fair value of the derivative are reported in other comprehensive income. Changes in the ineffective portions of hedges are recognized in earnings in the current period. For the six-month period ended June 30, 2005, the Partnership was not party to any derivative contract designated as a fair value hedge.


The Partnership actively manages its ratio of fixed-to-floating rate debt. To manage its fixed and floating rate debt in a cost-effective manner, the Partnership, from time to time, enters into interest rate swap agreements as cash flow hedges, under which it agrees to exchange various combinations of fixed and/or variable interest rates based on agreed upon notional amounts.


As of June 30, 2004, the Partnership had in place an interest rate cap agreement designated as a cash flow hedge that was designed to reduce the impact of interest rate changes on its variable rate debt. The interest rate cap agreement effectively limited the interest rate on a mortgage with a notional value of $28 million at 8.7% per annum until July 2004. The notional amount at June 30, 2004 provided an indication of the extent of the Partnerships involvement in these instruments at that time, but did not represent exposure to credit, interest rate or market risks. Prior to June 30, 2004, the Partnership had entered into interest rate swap agreements to effectively fix the LIBOR rate on $175 million of its credit facility borrowings at approximately 4.2%. On June 29, 2004, these hedges expired and all amounts held in accumulated other comprehensive income relating to these hedges have been reclassified to
 operations.


Income Taxes

No federal or state income taxes are payable by the Partnership, and accordingly, no provision for taxes has been made in the accompanying consolidated financial statements. The partners are to include their respective share of the Partnerships profits or losses in their individual tax returns. The Partnerships tax returns and the amount of allocable Partnership profits and losses are subject to examination by federal and state taxing authorities. If such examination results in changes to Partnership profits or losses, then the tax liability of the partners would be changed accordingly.


The Partnership owns a subsidiary REIT that has elected to be taxed as a real estate investment trust under Sections 856-860 of the Internal Revenue Code. In managements opinion, the requirements to maintain this election are being met. The Partnerships REIT subsidiary is subject to a 4% Federal excise tax if sufficient taxable income is not distributed within prescribed time limits. The excise tax equals 4% of the annual amount, if any, by which the sum of


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BRANDYWINE OPERATING PARTNERSHIP, L.P.NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTSJUNE 30, 2005

(a) 85% of the subsidiarys ordinary income and (b) 95% of the subsidiarys net capital gain exceeds cash distributions and certain taxes paid by the subsidiary.

New Pronouncements

In October 2004,
    the Financial Accounting Standards Board issued SFAS No. 123R (revised 2004), Share-Based
    Payment (SFAS
    123R). SFAS 123R requires companies to categorize share-based payments
    as either liability or equity awards. For liability awards, companies will
    at the time of award remeasure the award at fair value at each balance sheet
    date until the award is settled. Equity classified awards are measured at
    the
    fair value
    and are
    not remeasured. SFAS 123R will be effective for annual periods beginning
    January 1, 2006. Awards issued, modified, or settled after the effective
    date will be measured and recorded in accordance with SFAS 123R. The Partnership
    believes that the implementation of this standard will not have a material
    effect on the Partnerships
 consolidated financial position or results of operations.


In December 2004, the Financial Accounting Standards Board issued SFAS No. 153, Accountingfor Non-monetary Transactions (SFAS 153). SFAS 153 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. SFAS No. 153 is effective for non-monetary transactions occurring in fiscal years beginning after June 15, 2005. The Partnership believes that the implementation of this standard will not have a material effect on the Partnerships consolidated financial position or results of
 operations.


|3. | REAL
    ESTATE INVESTMENTS
|-- | ---------------------------

As of June 30, 2005 and December 31, 2004, the carrying value of the Partnerships operating properties was as follows:


|                          | June 30, |                        | December 31, |  
|------------------------- | -------- | ---------------------- | ------------ | -
|                          | 2005     |                        | 2004         |  
|                          |          |                       
|                          |          | (amounts in thousands) |             
|Land                      | $        | 457,024                |              | $
|Building and improvements |          | 1,919,277              |              |  
|Tenant improvements       |          | 139,098                |              |  
|                          |          |                        |              |  
|                          | $        | 2,515,399              |              | $
|                          |          |                        |              |  

Acquisitions and Dispositions

The Partnerships acquisitions are accounted for by the purchase method. The results of each acquired property are included in the Partnerships results of operations from their respective purchase dates.


2005

During the six-month period ended June 30, 2005, the Partnership acquired one industrial property containing 385,884 net square feet and 28.4 acres of developable land for an aggregate purchase price of $41.8 million.


2004

During the six-month period ended June 30, 2004, the Partnership sold three office properties containing 141,000 net rentable square feet, one industrial property containing 45,000 net rentable square feet and one parcel of land containing 5.3 acres for an aggregate of $24.3 million, realizing a net gain of $1.4 million. During the three-month period ended June 30, 2004, the Partnership sold one office property containing 103,000 net rentable square feet and one parcel of land containing 5.3 acres for an aggregate $18.2 million, realizing a net gain of $1.2 million.


On September
    21, 2004, the Partnership completed the acquisition of 100% of the partnership
    interests in The Rubenstein Company, L.P. (TRC). Through the
acquisition, the Partnership acquired 14 office properties (the TRC


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BRANDYWINE OPERATING PARTNERSHIP, L.P.NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTSJUNE 30, 2005

Properties) located in Pennsylvania and Delaware that contain approximately 3.5 million net rentable square feet. The results of TRCs operations have been included in the consolidated financial statements since that date.

The aggregate
    consideration for the TRC Properties was $631.3 million including $29.3 million
    of closing costs, debt prepayment penalties and debt premiums that are included
    in the basis of the assets acquired. The consideration was paid with $540.4
    million of cash, $79.3 million of debt assumed, $1.6 million of other liabilities
    assumed, and 343,006 Common Partnership Units valued at $10.0 million. The
    value of the debt assumed was based on prevailing market rates at the time
    of acquisition.
    The value of the Common Partnership Units was based on the average trading price of
  the Companys common shares.


The following table summarizes the fair value of the assets acquired and liabilities assumed at the date of acquisition (in thousands):


|                                       | At September 21, |        
|-------------------------------------- | ---------------- | -------
|                                       | 2004             |        
|                                       |                  |        
|Real estate investments                |                  |        
|Land                                   | $                | 105,302
|Building and improvements              |                  | 434,795
|Tenant improvements                    |                  | 20,322 
|                                       |                  |        
|Total real estate investments acquired |                  | 560,419
|                                       |                  |        
|Rent receivables                       |                  | 5,537  
|Other assets acquired:                 |                  |        
|Intangible assets:                     |                  |        
|In-Place leases                        |                  | 49,455 
|Relationship values                    |                  | 35,548 
|Above-market leases                    |                  | 13,240 
|                                       |                  |        
|Total intangible assets acquired       |                  | 98,243 
|Other assets                           |                  | 6,292  
|                                       |                  |        
|Total Other assets                     |                  | 104,535
|                                       |                  |        
|Total assets acquired                  |                  | 670,491
|                                       |                  |        
|Liabilities assumed:                   |                  |        
|Mortgage notes payable                 |                  | 79,330 
|Security deposits and deferred rent    |                  | 618    
|Other liabilities:                     |                  |        
|Below-market leases                    |                  | 39,204 
|Other liabilities                      |                  | 943    
|                                       |                  |        
|Total other liabilities assumed        |                  | 40,147 
|                                       |                  |        
|Total liabilities assumed              |                  | 120,095
|                                       |                  |        
|Net assets acquired                    | $                | 550,396
|                                       |                  |        

The Partnership has agreed to issue the sellers up to a maximum of $9.7 million of additional Common Partnership Units if certain of the TRC Properties achieve at least 95% occupancy prior to September 21, 2007. At June 30, 2005, the maximum amount payable under this arrangement was $6.7 million. Any contingent amounts ultimately payable would represent additional purchase price and would be reflected within the basis of the assets acquired and liabilities assumed.


At the closing of this transaction, the Partnership agreed not to sell the TRC Properties in a transaction that would trigger taxable income to the contributors (i.e., sellers) for periods ranging from three to 15 years. In the event that the Partnership sells any of the properties in such a transaction within the applicable restricted period, the Partnership will be required to pay significant tax liabilities that would be incurred by the contributors.


Pro forma information
    relating to the acquisition of TRC is presented below as if TRC was acquired
    and the related financing transactions occurred as January 1, 2004. These
    pro forma results are not necessarily indicative of the results which actually
    would have occurred if the acquisition had occurred on the first day of the
    periods presented, nor does the pro forma financial information purport to
    represent the results of operations for future periods (in thousands, except
  per share amounts):


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BRANDYWINE OPERATING PARTNERSHIP, L.P.NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTSJUNE 30, 2005

|                                             |   | Three-month periodended June 30, 2004 |  |   | Six-month periodended June 30, 2004 | 
|-------------------------------------------- | - | ------------------------------------- |  | - | ----------------------------------- | 
|                                             |   |                                       |  |   |                                     | 
|                                             |   | (unaudited)                           |  |   | (unaudited)                         | 
|Pro forma revenue                            | $ | 96,012                                |  | $ | 188,972                             | 
|                                             |   |                                       |  |   |                                     | 
|Pro forma income from continuing operations  |   | 15,087                                |  |   | 24,773                              | 
|                                             |   |                                       |  |   |                                     | 
|Earnings per unit from continuing operations |   |                                       |  |   |                                     | 
|Basic -- as reported                         | $ | 0.34                                  |  | $ | 0.67                                | 
|                                             |   |                                       |  |   |                                     | 
|Basic -- as pro forma                        | $ | 0.22                                  |  | $ | 0.43                                | 
|                                             |   |                                       |  |   |                                     | 
|Diluted - as reported                        | $ | 0.34                                  |  | $ | 0.67                                | 
|                                             |   |                                       |  |   |                                     | 
|Diluted - as pro forma                       | $ | 0.22                                  |  | $ | 0.43                                | 
|                                             |   |                                       |  |   |                                     | 



|4. | INVESTMENT
    IN UNCONSOLIDATED REAL ESTATE VENTURES, AT EQUITY
|-- | ----------------------------------------------------------------

As of June 30, 2005, the Partnership had an aggregate investment of approximately $13.3 million in nine unconsolidated Real Estate Ventures (net of returns of investment). The Partnership formed these ventures with unaffiliated third parties to develop office properties or to acquire land in anticipation of possible development of office properties. Seven of the Real Estate Ventures own eight office buildings that contain an aggregate of approximately 1.6 million net rentable square feet, one Real Estate Venture developed a hotel property that contains 137 rooms and one Real Estate Venture is developing an office property located in Charlottesville, Virginia.


The Partnership
also has investments in two real estate ventures (Four Tower Bridge Associates
and Six Tower Bridge Associates) that are considered to be variable interest
entities under FIN 46R and of which the Partnership is the primary beneficiary.
The financial information for these two real estate ventures were consolidated
into the Partnerships consolidated financial statements effective March 31, 2004. Prior to March 31, 2004, the Partnership accounted for its investment in these two ventures under the equity method.


The Partnership accounts for its non-controlling interests in its Real Estate Ventures using the equity method. Non-controlling ownership interests range from 6% to 50%, subject to specified priority allocations in certain of the Real Estate Ventures. The Partnerships investments, initially recorded at cost, are subsequently adjusted for the Partnerships share of the Real Estate Ventures income or loss and cash contributions and distributions.


The following is a summary of the financial position of the Real Estate Ventures as of June 30, 2005 and December 31, 2004 (in thousands):


|                                                    |   | June 30,
   2005 |  |   | December
    31,
    2004 | 
|--------------------------------------------------- | - | ---------------- |  | - | ------------------------- | 
|                                                    |   |                  |  |   |                           | 
|Operating property, net of accumulated depreciation | $ | 289,063          |  | $ | 294,378                   | 
|Other assets                                        |   | 26,995           |  |   | 29,944                    | 
|Liabilities                                         |   | 23,988           |  |   | 26,989                    | 
|Debt                                                |   | 206,195          |  |   | 209,624                   | 
|Equity                                              |   | 85,875           |  |   | 87,709                    | 
|Partnership's share of equity (Partnership basis)   |   | 13,308           |  |   | 12,754                    | 

The following is a summary of results of operations of the Real Estate Ventures for the three- and six-month periods ended June 30, 2005 and 2004 (in thousands):


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BRANDYWINE OPERATING PARTNERSHIP, L.P.NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTSJUNE 30, 2005

|                                                  |   | Three-month periodsended June 30, |  |   | Six-month periodsended June 30, | 
|------------------------------------------------- | - | --------------------------------- |  | - | ------------------------------- | 
|                                                  |   |                                   |  |   |                                 | 
|                                                  |   | 2005                              |  |   | 2004                            | 
|                                                  |   |                                   |  |   |                                 | 
|Revenue                                           | $ | 21,018                            |  | $ | 11,349                          | 
|Operating expenses                                |   | 12,520                            |  |   | 4,534                           | 
|Interest expense, net                             |   | 2,821                             |  |   | 2,946                           | 
|Depreciation and amortization                     |   | 2,224                             |  |   | 2,022                           | 
|Net income                                        |   | 3,453                             |  |   | 1,847                           | 
|Partnership's share of income (Partnership basis) |   | 993                               |  |   | 674                             | 

As of June 30, 2005, the Partnership had guaranteed repayment of approximately $0.6 million of loans for the Real Estate Ventures. The Partnership also provides customary environmental indemnities in connection with construction and permanent financing both for its own account and on behalf of the Real Estate Ventures.


|5. | INTANGIBLE
    ASSETS
|-- | ---------------------

As of June 30,
    2005 and December 31, 2004, the Partnerships intangible assets were
    comprised of the following (in thousands):


|                             |   | June 30, 2005      | 
|---------------------------- | - | ------------------ | 
|                             |   |                    | 
|                             |   | Total Cost         | 
|                             |   |                    | 
|In-place lease value         | $ | 51,712             | 
|Tenant relationship value    |   | 37,832             | 
|Above market leases acquired |   | 15,149             | 
|                             |   |                    | 
|Total                        | $ | 104,693            | 
|                             |   |                    | 
|                             |   |                    | 
|                             |   | December 31, 2004  | 
|                             |   |                    | 
|                             |   | Total
        Cost | 
|                             |   |                    | 
|In-place lease value         | $ | 55,165             | 
|Tenant relationship value    |   | 40,570             | 
|Above market leases acquired |   | 15,685             | 
|                             |   |                    | 
|Total                        | $ | 111,420            | 
|                             |   |                    | 

The reductions in the historical cost values during the six-month period ended June 30, 2005 were due to reallocations of the Partnerships purchase price for the TRC Properties to the assets acquired and liabilities assumed based on final appraisals and the retirement of assets that became fully amortized during the aforementioned period.


|6. | MORTGAGE
    NOTES PAYABLE
|-- | --------------------------

The following table sets forth information regarding our mortgage indebtedness outstanding at June 30, 2005 and December 31, 2004 (in thousands):


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BRANDYWINE OPERATING PARTNERSHIP, L.P.NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS
JUNE 30, 2005

|                                           |  |   |          |  |   |                  |     | Effective |   |         
|------------------------------------------ |  | - | -------- |  | - | ---------------- | --- | --------- | - | --------
|                                           |  |   | June 30, |  |   | December
    31, |     | Interest  |   | Maturity
|Property / Location                        |  |   | 2005     |  |   | 2004             |     | Rate (a)  |   | Date    
|                                           |  |   |          |  |   |                  |     |           |  
|Grande B                                   |  | $ | 79,738   |  | $ | 80,429           |     | 7.48      | % | Jul-27  
|Two Logan Square                           |  |   | 72,999   |  |   | 73,511           | (a) | 5.78      | % | Jul-09  
|Newtown Square/Berwyn Park/Libertyview     |  |   | 64,944   |  |   | 65,442           |     | 7.25      | % | May-13  
|Midlantic Drive/Lenox Drive/DCC I          |  |   | 64,384   |  |   | 64,942           |     | 8.05      | % | Oct-11  
|Grande A                                   |  |   | 61,639   |  |   | 62,177           |     | 7.48      | % | Jul-27  
|Plymouth Meeting Exec.                     |  |   | 44,962   |  |   | 45,226           | (a) | 7.00      | % | Dec-10  
|Arboretum I, II, III & V                   |  |   | 23,468   |  |   | 23,690           |     | 7.59      | % | Jul-11  
|Six Tower Bridge                           |  |   | 15,241   |  |   | 15,394           |     | 7.79      | % | Aug-12  
|Grande A                                   |  |   | 12,977   |  |   | 17,157           | (b) | 6.10      | % | Jul-27  
|400 Commerce Drive                         |  |   | 12,083   |  |   | 12,175           |     | 7.12      | % | Jun-08  
|Four Tower Bridge                          |  |   | 10,827   |  |   | 10,890           |     | 6.62      | % | Feb-11  
|Croton Road                                |  |   | 6,042    |  |   | 6,100            |     | 7.81      | % | Jan-06  
|200 Commerce Drive                         |  |   | 5,944    |  |   | 5,976            | (a) | 7.12      | % | Jan-10  
|Southpoint III                             |  |   | 5,658    |  |   | 5,877            |     | 7.75      | % | Apr-14  
|440 & 442 Creamery Way                     |  |   | 5,656    |  |   | 5,728            |     | 8.55      | % | Jul-07  
|Norriton Office Center                     |  |   | 5,231    |  |   | 5,270            |     | 8.50      | % | Oct-07  
|429 Creamery Way                           |  |   | 3,009    |  |   | 3,087            |     | 8.30      | % | Sep-06  
|481 John Young Way                         |  |   | 2,390    |  |   | 2,420            |     | 8.40      | % | Nov-07  
|Grande A                                   |  |   | 2,300    |  |   | 3,040            | (b) | 6.27      | % | Jul-27  
|111 Arrandale Blvd                         |  |   | 1,072    |  |   | 1,100            |     | 8.65      | % | Aug-06  
|Interstate Center                          |  |   | 865      |  |   | 959              | (b) | 4.69      | % | Mar-07  
|                                           |  |   |          |  |   |                  |     |           |   |         
|Principal balance outstanding              |  |   | 501,429  |  |   | 510,590          |     |           |   |         
|Plus: unamortized fixed-rate debt premiums |  |   | 6,760    |  |   | 7,644            |     |           |   |         
|                                           |  |   |          |  |   |                  |     |           |   |         
|Total mortgage indebtedness                |  | $ | 508,189  |  | $ | 518,234          |     |           |   |         
|                                           |  |   |          |  |   |                  |     |           |   |         

|   
|---
|(a)
|(b)

During the six-month periods ended June 30, 2005 and 2004, the Partnerships weighted-average interest rate on its mortgage notes payable was 7.1% and 7.5% respectively.


|7. | UNSECURED
    NOTES
|-- | -------------------

The following table sets forth information regarding our unsecured notes outstanding (in thousands):


|                            |   | June 30, |   | December 31, |         |   |          | Stated |               | Effective |                  
|--------------------------- | - | -------- | - | ------------ | ------- | - | -------- | ------ | ------------- | --------- | -----------------
|Year                        |   | 2005     |   |              | 2004    |   | Maturity |        | Interest Rate |           | Interest Rate (1)
|                            |   |          |   |              |         |   |          |        |               |           |                  
|2008                        | $ | 113,000  |   | $            | 113,000 |   | Dec-08   |        | 4.34          | %         | 4.34             
|2009                        |   | 275,000  |   |              | 275,000 |   | Nov-09   |        | 4.50          | %         | 4.62             
|2014                        |   | 250,000  |   |              | 250,000 |   | Nov-14   |        | 5.40          | %         | 5.53             
|                            |   |          |   |              |         |   |          |        |               |           |                  
|Total face amount           |   | 638,000  |   |              | 638,000 |   |          |        |               |           |                  
|Less: unamortized discounts |   | (1,466   | ) |              | (1,565  | ) |          |        |               |           |                  
|                            |   |          |   |              |         |   |          |        |               |           |                  
|Total unsecured notes       | $ | 636,534  |   | $            | 636,435 |   |          |        |               |           |                  
|                            |   |          |   |              |         |   |          |        |               |           |                  

|    |                                                                                                                                       
|--- | --------------------------------------------------------------------------------------------------------------------------------------
|(1) | Rates include
        the effect of amortization related to discounts and costs related to
    settlement of treasury lock agreements.

The indenture relating to the 2009 and 2014 unsecured notes contains various financial restrictions and requirements, including (1) a leverage ratio not to exceed 60%, (2) a secured debt leverage ratio not to exceed 40%, (3) a debt service coverage ratio of greater than 1.5 to 1.0, and (4) an unencumbered asset value of not less than 150% of unsecured debt. In addition, the note purchase agreement relating to the 2008 unsecured notes contains covenants that are similar to the above covenants.


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BRANDYWINE OPERATING PARTNERSHIP, L.P.NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTSJUNE 30, 2005

|8. | UNSECURED
    CREDIT FACILITY
|-- | -----------------------------

The Partnership
  utilizes credit facility borrowings for general business purposes, including
  the acquisition, development and redevelopment of properties and the repayment
  of other debt. The Partnership maintains a $450.0 million unsecured credit
  facility (the Credit Facility) that matures in May 2007. Borrowings under the Credit Facility generally bear interest at LIBOR plus a spread over LIBOR ranging from 0.65% to 1.2% based on the Partnerships unsecured senior debt rating. The Partnership has the option to increase the Credit Facility to $600.0 million subject to the absence of any defaults and the Partnerships ability to acquire additional commitments from our existing lenders or new lenders. As of June 30, 2005, the Partnership had $265.0 million of borrowings and $10.7 million of letters of credit outstanding under the Credit Facility, leaving $174.3 million of unused availability. For the six-month periods ended June 30, 2005 and 2004, the weighted-average interest rate on the Partnerships
  unsecured credit facilities, including the effect of interest rate hedges during
  2004, was 4.06% during 2005 and 4.55% during 2004.


The Credit Facility requires the maintenance of certain ratios related to minimum net worth, debt-to-total capitalization and fixed charge coverage and various non-financial covenants.


|9. | RISK MANAGEMENT
    AND USE OF FINANCIAL INSTRUMENTS
|-- | ----------------------------------------------------

Risk Management

In the normal course of its on-going business operations, the Partnership encounters economic risk. There are three main components of economic risk: interest rate risk, credit risk and market risk. The Partnership is subject to interest rate risk on its interest-bearing liabilities. Credit risk is the risk of inability or unwillingness of tenants to make contractually required payments. Market risk is the risk of declines in the value of properties due to changes in rental rates, occupancy levels, interest rates or other market factors affecting the valuation of properties held by the Partnership.


Use of Derivative Financial Instruments

The Partnerships use of derivative instruments is limited to the utilization of interest rate agreements or other instruments to manage interest rate risk exposures and not for speculative purposes. The principal objective of such arrangements is to minimize the risks and/or costs associated with the Partnerships
  operating and financial structure, as well as to hedge specific transactions.
  The counterparties to these arrangements are major financial institutions with
  which the Partnership and its affiliates may also have other financial relationships.
  The Partnership is potentially exposed to credit loss in the event of non-performance
  by these counterparties. However, because of the high credit ratings of the counterparties,
  the Partnership does not anticipate that any of the counterparties will fail
  to meet these obligations as they come due. The Partnership does not hedge credit
  or property value market risks.


The Partnership formally assesses, both at inception of the hedge and on an on-going basis, whether each derivative is highly-effective in offsetting changes in cash flows of the hedged item. If management determines that a derivative is not highly-effective as a hedge or if a derivative ceases to be a highly-effective hedge, the Partnership will discontinue hedge accounting prospectively.


As of June 30, 2005 and December 31, 2004, the Partnership was not party to any derivative financial instruments.


In October 2004, in anticipation of the offering of the 2009 and 2014 unsecured notes, the Partnership entered into treasury lock agreements. The treasury lock agreements were designated as cash flow hedges of interest rate risk and qualified for hedge accounting. The treasury lock agreements were for notional amounts totaling $194.8 million for an expiration of five years at an all-in-rate of 4.8% and for notional amounts totaling $188.0 million for an expiration of 10 years at an all-in-rate of 5.6%. The treasury lock agreements were settled in October 2004 upon the completion of the offering of the 2009 and 2014 unsecured notes at a total cost of approximately $3.2 million. The cost was recorded as a component of accumulated other comprehensive loss and is being amortized to interest expense over the terms of the respective unsecured notes.


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BRANDYWINE OPERATING PARTNERSHIP, L.P.NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTSJUNE 30, 2005

As of June 30, 2004, the Partnership had in place an interest rate cap agreement designated as a cash flow hedge that was designed to reduce the impact of interest rate changes on its variable rate debt. The interest rate cap agreement effectively limited the interest rate on a mortgage with a notional value of $28 million at 8.7% per annum until July 2004. The notional amount at June 30, 2004 provided an indication of the extent of the Partnerships involvement in these instruments at that time, but did not represent exposure to credit, interest rate or market risks. Prior to June 30, 2004, the Partnership had entered into interest rate swap agreements to effectively fix the LIBOR rate on $175 million of its credit facility borrowings at approximately 4.2%. On June 29, 2004, these hedges expired and all amounts held in accumulated other comprehensive income relating to these hedges have been reclassified to
 operations.


Concentration of Credit Risk

Concentrations of credit risk arise when a number of tenants related to the Partnerships investments or rental operations are engaged in similar business activities, or are located in the same geographic region, or have similar economic features that would cause their inability to meet contractual obligations, including those to the Partnership, to be similarly affected. The Partnership regularly monitors its tenant base to assess potential concentrations of credit risk. Management believes the current credit risk portfolio is reasonably well diversified and does not contain any unusual concentration of credit risk. No tenant accounted for 5% or more of the Partnerships rents during the three- and six-month periods ended June 30, 2005 or 2004.


|10. | DISCONTINUED
    OPERATIONS
|--- | ---------------------------

For the three- and six-month periods ended June 30, 2005 the Partnership had no income from discontinued operations. For the three- and six-month periods ended June 30, 2004, income from discontinued operations relates to 4 properties that the Partnership sold during 2004. The following table summarizes the revenue and expense information for the three- and six-month periods ended June 30, 2004 (in thousands):


|                                                          |   | Three-month
    period
    ended June 30, 2004 |   |   | Six-month
    period
    ended June 30, 2004 |  
|--------------------------------------------------------- | - | ---------------------------------------------- | - | - | -------------------------------------------- | -
|                                                          |   |                                                |   |   |                                              |  
|Revenue:                                                  |   |                                                |   |   |                                              |  
|Rents                                                     | $ | 75                                             |   | $ | 268                                          |  
|Tenant reimbursements                                     |   | 63                                             |   |   | 296                                          |  
|Other                                                     |   | —                                              |   |   | 17                                           |  
|                                                          |   |                                                |   |   |                                              |  
|Total revenue                                             |   | 138                                            |   |   | 581                                          |  
|                                                          |   |                                                |   |   |                                              |  
|Expenses:                                                 |   |                                                |   |   |                                              |  
|Property operating expenses                               |   | 212                                            |   |   | 461                                          |  
|Real estate taxes                                         |   | 62                                             |   |   | 154                                          |  
|Depreciation and amortization                             |   | 77                                             |   |   | 180                                          |  
|                                                          |   |                                                |   |   |                                              |  
|Total operating expenses                                  |   | 351                                            |   |   | 795                                          |  
|                                                          |   |                                                |   |   |                                              |  
|Loss from discontinued operations before net gain         |   |                                                |   |   |                                              |  
|on sale of interests in real estate and minority interest |   | (213                                           | ) |   | (214                                         | )
|Net gain on sales of interest in real estate              |   | 45                                             |   |   | 249                                          |  
|                                                          |   |                                                |   |   |                                              |  
|Income (loss) from discontinued operations                | $ | (168                                           | ) | $ | 35                                           |  
|                                                          |   |                                                |   |   |                                              |  

Discontinued operations have not been segregated in the consolidated statements of cash flows. Therefore, amounts for certain captions will not agree with respective data in the consolidated statements of operations.


|11. | PARTNERS EQUITY
|--- | ----------------

On June 15, 2005, the Partnership declared a distribution of $0.44 per Common Partnership Unit, totaling $24.7 million, which was paid on July 15, 2005 to unit holders of record as of July 6, 2005. On this same date, the Partnership declared a $0.44 per unit cash distribution to holders of Class A Units totaling $0.9 million.


On June 15, 2005,
the Partnership declared distributions to holders of its Series D Preferred Mirror
Units and Series E Preferred Mirror Units to holders of record on June 30, 2005.
These units are currently entitled to a cumulative


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BRANDYWINE OPERATING PARTNERSHIP, L.P.NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTSJUNE 30, 2005

preferential return of 7.50% and 7.375%, respectively. Distributions paid on July 15, 2005 to holders of Series D Preferred Mirror Units and Series E Preferred Mirror Units totaled $0.9 million and $1.1 million, respectively.

|12. | EARNINGS
    PER COMMON PARTNERSHIP UNIT
|--- | ----------------------------------------

The following table details the number of units and net income used to calculate basic and diluted earnings per common partnership unit (in thousands, except unit and per unit amounts):


|                                                       | Three-month periods ended June 30, |           
|------------------------------------------------------ | ---------------------------------- | ----------
|                                                       |                                    |           
|                                                       | 2005                               |           
|                                                       |                                    |           
|                                                       |                                    | Basic     
|                                                       |                                    |           
|                                                       |                                    |           
|Income from continuing operations                      | $                                  | 9,185     
|Income from discontinued operations                    |                                    | —         
|Income allocated to Preferred Units                    |                                    | (1,998    
|Preferred unit redemption gain                         |                                    | —         
|                                                       |                                    |           
|Net income available to common partnership unitholders | $                                  | 7,187     
|                                                       |                                    |           
|                                                       |                                    |           
|Weighted-average common partnership units outstanding  |                                    | 57,734,627
|Options and warrants                                   |                                    | —         
|                                                       |                                    |           
|Total weighted-average partnership units outstanding   |                                    | 57,734,627
|                                                       |                                    |           
|                                                       |                                    |           
|Earnings per Common Partnership Unit:                  |                                    |           
|Continuing operations                                  | $                                  | 0.12      
|Discontinued operations                                |                                    | —         
|                                                       |                                    |           
|                                                       | $                                  | 0.12      
|                                                       |                                    |           



|                                                       | Six-month periods ended June 30, |           
|------------------------------------------------------ | -------------------------------- | ----------
|                                                       |                                  |           
|                                                       | 2005                             |           
|                                                       |                                  |           
|                                                       |                                  | Basic     
|                                                       |                                  |           
|                                                       |                                  |           
|Income from continuing operations                      | $                                | 18,876    
|Income from discontinued operations                    |                                  | —         
|Income allocated to Preferred Units                    |                                  | (3,996    
|Preferred unit redemption gain                         |                                  | —         
|                                                       |                                  |           
|Net income available to common partnership unitholders | $                                | 14,880    
|                                                       |                                  |           
|                                                       |                                  |           
|Weighted-average common partnership units outstanding  |                                  | 57,619,382
|Options and warrants                                   |                                  | —         
|                                                       |                                  |           
|Total weighted-average partnership units outstanding   |                                  | 57,619,382
|                                                       |                                  |           
|                                                       |                                  |           
|Earnings per Common Partnership Unit:                  |                                  |           
|Continuing operations                                  | $                                | 0.26      
|Discontinued operations                                |                                  | —         
|                                                       |                                  |           
|                                                       | $                                | 0.26      
|                                                       |                                  |           

Securities (including Series A Preferred Mirror Units) totaling 1,339,286 as of June 30, 2004 were excluded from the earnings per common partnership unit computations for the three- and six-month periods ended June 30, 2004 because their effect would have been antidilutive. All of the Series A Preferred Mirror Units were redeemed by the Partnership in February 2004 and are no longer outstanding.


|13. | SEGMENT
    INFORMATION
|--- | -----------------------

The Partnership
currently manages its portfolio within five segments: (1) PennsylvaniaWest,
(2) PennsylvaniaNorth, (3) New Jersey, (4) Urban and (5) Virginia. The
PennsylvaniaWest segment includes properties in Chester,


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BRANDYWINE OPERATING PARTNERSHIP, L.P.NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTSJUNE 30, 2005

Delaware
      and Montgomery counties in the Philadelphia suburbs of Pennsylvania. The
      Pennsylvania-North segment includes properties north of Philadelphia in
      Berks, Bucks, Cumberland, Dauphin, Lehigh and Montgomery counties. The
      New Jersey segment includes properties in counties in the southern part
      of New Jersey including Burlington, Camden and Mercer counties and in Bucks
      County, Pennsylvania. The Urban segment includes properties in the City
      of Philadelphia, Pennsylvania and the state of Delaware. The Virginia segment
      includes properties primarily in Albemarle, Chesterfield and Henrico counties,
      the City of Richmond and Durham, North Carolina. Corporate is responsible
      for cash and investment management, development of certain real estate
      properties during the construction period, and certain other general support
      functions.


Segment information as of and for the three-month periods ended June 30, 2005 and 2004 is as follows (in thousands):


|                                                 | Pennsylvania – |         | Pennsylvania – |   |            |  |       |         |          |   |           |  |       |         |  |   |         |  |  
|------------------------------------------------ | -------------- | ------- | -------------- | - | ---------- |  | ----- | ------- | -------- | - | --------- |  | ----- | ------- |  | - | ------- |  | -
|                                                 | West           |         | North          |   | New Jersey |  | Urban |         | Virginia |   | Corporate |  | Total |        
|                                                 |                |         |                |   |            |  |       |         |          |   |           |  |       |         |  |   |         |  |  
|As of June 30, 2005:                             |                |         |                |   |            |  |       |         |          |   |           |  |       |         |  |   |         |  |  
|Real estate investments, at cost:                |                |         |                |   |            |  |       |         |          |   |           |  |       |         |  |   |         |  |  
|Operating properties                             | $              | 835,305 |                | $ | 542,970    |  | $     | 568,219 |          | $ | 350,504   |  | $     | 218,401 |  | $ |        |  | $
|Construction-in-progress                         |                | 14,828  |                |   | 33,487     |  |       | 13,615  |          |   | 5,961     |  |       | 1,627   |  |   | 143,728 |  |  
|Land held for development                        |                | 16,595  |                |   | 31,216     |  |       | 23,219  |          |   | 5,925     |  |       | 7,960   |  |   | 793     |  |  
|                                                 |                |         |                |   |            |  |       |         |          |   |           |  |       |         |  |   |         |  |  
|As of December 31, 2004:                         |                |         |                |   |            |  |       |         |          |   |           |  |       |         |  |   |         |  |  
|Real estate investments, at cost:                |                |         |                |   |            |  |       |         |          |   |           |  |       |         |  |   |         |  |  
|Operating properties                             | $              | 830,622 |                | $ | 533,142    |  | $     | 553,969 |          | $ | 349,911   |  | $     | 215,490 |  | $ |        |  | $
|Construction-in-progress                         |                | 13,140  |                |   | 24,591     |  |       | 10,994  |          |   | 3,581     |  |       | 3,789   |  |   | 88,921  |  |  
|Land held for development                        |                | 9,820   |                |   | 27,964     |  |       | 14,585  |          |   | 516       |  |       | 7,959   |  |   | 673     |  |  
|                                                 |                |         |                |   |            |  |       |         |          |   |           |  |       |         |  |   |         |  |  
|For the
       three-months ended June 30, 2005: |                |         |                |   |            |  |       |         |          |   |           |  |       |         |  |   |         |  |  
|Total revenue                                    | $              | 26,656  |                | $ | 19,013     |  | $     | 24,802  |          | $ | 16,467    |  | $     | 7,111   |  | $ | 1,194   |  | $
|Property operating expenses                      |                |         |                |   |            |  |       |         |          |   |           |  |       |         |  |   |         |  |  
|and real estate taxes                            |                | 9,922   |                |   | 8,444      |  |       | 9,730   |          |   | 6,527     |  |       | 2,861   |  |   |        |  |  
|                                                 |                |         |                |   |            |  |       |         |          |   |           |  |       |         |  |   |         |  |  
|Net operating income                             | $              | 16,734  |                | $ | 10,569     |  | $     | 15,072  |          | $ | 9,940     |  | $     | 4,250   |  | $ | 1,194   |  | $
|                                                 |                |         |                |   |            |  |       |         |          |   |           |  |       |         |  |   |         |  |  
|                                                 |                |         |                |   |            |  |       |         |          |   |           |  |       |         |  |   |         |  |  
|For the
       three-months ended June 30, 2004: |                |         |                |   |            |  |       |         |          |   |           |  |       |         |  |   |         |  |  
|Total revenue                                    | $              | 19,693  |                | $ | 19,368     |  | $     | 24,063  |          | $ | 3,793     |  | $     | 6,746   |  | $ | 2,551   |  | $
|Property operating expenses                      |                |         |                |   |            |  |       |         |          |   |           |  |       |         |  |   |         |  |  
|and real estate taxes                            |                | 5,452   |                |   | 8,101      |  |       | 8,822   |          |   | 1,842     |  |       | 2,683   |  |   |        |  |  
|                                                 |                |         |                |   |            |  |       |         |          |   |           |  |       |         |  |   |         |  |  
|Net operating income                             | $              | 14,241  |                | $ | 11,267     |  | $     | 15,241  |          | $ | 1,951     |  | $     | 4,063   |  | $ | 2,551   |  | $
|                                                 |                |         |                |   |            |  |       |         |          |   |           |  |       |         |  |   |         |  |  

Segment information for the six-month periods ended June 30, 2005 and 2004 is as follows (in thousands):


|                                               | Pennsylvania – |        | Pennsylvania – |   |            |  |       |        |          |   |           |  |       |        |  |   |       |  |  
|---------------------------------------------- | -------------- | ------ | -------------- | - | ---------- |  | ----- | ------ | -------- | - | --------- |  | ----- | ------ |  | - | ----- |  | -
|                                               | West           |        | North          |   | New Jersey |  | Urban |        | Virginia |   | Corporate |  | Total |       
|                                               |                |        |                |   |            |  |       |        |          |   |           |  |       |        |  |   |       |  |  
|For
       the six-months ended June 30, 2005: |                |        |                |   |            |  |       |        |          |   |           |  |       |        |  |   |       |  |  
|Total revenue                                  | $              | 56,370 |                | $ | 38,475     |  | $     | 50,061 |          | $ | 32,427    |  | $     | 14,317 |  | $ | 2,517 |  | $
|Property operating expenses                    |                |        |                |   |            |  |       |        |          |   |           |  |       |        |  |   |       |  |  
|and real estate taxes                          |                | 20,204 |                |   | 17,622     |  |       | 20,403 |          |   | 13,065    |  |       | 5,726  |  |   |      |  |  
|                                               |                |        |                |   |            |  |       |        |          |   |           |  |       |        |  |   |       |  |  
|Net operating income                           | $              | 36,166 |                | $ | 20,853     |  | $     | 29,658 |          | $ | 19,362    |  | $     | 8,591  |  | $ | 2,517 |  | $
|                                               |                |        |                |   |            |  |       |        |          |   |           |  |       |        |  |   |       |  |  
|                                               |                |        |                |   |            |  |       |        |          |   |           |  |       |        |  |   |       |  |  
|For the
       six-months ended June 30, 2004: |                |        |                |   |            |  |       |        |          |   |           |  |       |        |  |   |       |  |  
|Total revenue                                  | $              | 39,622 |                | $ | 37,503     |  | $     | 48,529 |          | $ | 6,619     |  | $     | 13,378 |  | $ | 3,762 |  | $
|Property operating expenses                    |                |        |                |   |            |  |       |        |          |   |           |  |       |        |  |   |       |  |  
|and real estate taxes                          |                | 11,429 |                |   | 16,724     |  |       | 18,234 |          |   | 3,869     |  |       | 5,675  |  |   |      |  |  
|                                               |                |        |                |   |            |  |       |        |          |   |           |  |       |        |  |   |       |  |  
|Net operating income                           | $              | 28,193 |                | $ | 20,779     |  | $     | 30,295 |          | $ | 2,750     |  | $     | 7,703  |  | $ | 3,762 |  | $
|                                               |                |        |                |   |            |  |       |        |          |   |           |  |       |        |  |   |       |  |  

Net operating income is defined as total revenue less property operating expenses and real estate taxes. Below is a reconciliation of consolidated net operating income to net income (in thousands):


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BRANDYWINE OPERATING PARTNERSHIP, L.P.NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTSJUNE 30, 2005

|                                              | Three-month periods |         | Six-month periods |  
|--------------------------------------------- | ------------------- | ------- | ----------------- | -
|                                              | ended June 30,      |         | ended June 30,    |  
|                                              |                     |         |                   |  
|                                              | 2005                |         | 2004              |  
|                                              |                     |         |                   |  
|Consolidated net operating income             | $                   | 57,759  |                   | $
|Less:                                         |                     |         |                   |  
|Interest income                               |                     | 687     |                   |  
|Interest expense                              |                     | (17,807 | )                 |  
|Depreciation and amortization                 |                     | (27,948 | )                 |  
|Administrative expenses                       |                     | (4,378  | )                 |  
|Minority interest attributable to continuing  |                     |         |                   |  
|operations                                    |                     | (121    | )                 |  
|Plus:                                         |                     |         |                   |  
|Equity in income of real estate ventures      |                     | 993     |                   |  
|Net gain on sales of interests in real estate |                     |        |                   |  
|                                              |                     |         |                   |  
|Income from continuing operations             |                     | 9,185   |                   |  
|Income (loss) from discontinued operations    |                     |        |                   |  
|                                              |                     |         |                   |  
|Net income                                    | $                   | 9,185   |                   | $
|                                              |                     |         |                   |  

|    |                                  
|--- | ---------------------------------
|14. | COMMITMENTS
    AND CONTINGENCIES

Legal Proceedings

The Partnership is involved from time to time in litigation on various matters, including disputes with tenants and disputes arising out of agreements to purchase or sell properties. Given the nature of the Partnerships business activities, these lawsuits are considered routine to the conduct of its business. The result of any particular lawsuit cannot be predicted, because of the very nature of litigation, the litigation process and its adversarial nature, and the jury system.


Environmental

As an owner of real estate, the Partnership is subject to various environmental laws of federal, state, and local governments. The Partnerships compliance with existing laws has not had a material adverse effect on its financial condition and results of operations, and the Partnership does not believe it will have a material adverse effect in the future. However, the Partnership cannot predict the impact of unforeseen environmental contingencies or new or changed laws or regulations on its current Properties or on properties that the Partnership may acquire.


Related Party Transaction

We are a party to an agreement with one of our Trustees (Donald E. Axinn) in which we agreed to fund $5.5 million in September 2010 to acquire a fifty percent interest in an approximately 141,725 square foot office building located at 101 Paragon Drive, Montvale, New Jersey. Our agreement provides for proceeds of our $5.5 million payment to be used (together with funds provided by Mr. Axinn) to repay in full the third party loan that encumbers this property.


Ground Rent

Future minimum rental payments under the terms of all non-cancelable ground leases under which the Partnership is the lessee are accounted for on a straight-line basis regardless of when payments are due.


Other Commitments or Contingencies

As part of our TRC acquisition, the Partnership agreed to issue to the sellers up to a maximum of $9.7 million of Common Partnership Units of the Partnership if certain of the acquired properties achieve at least 95% occupancy prior to September 21, 2007. At June 30, 2005, the maximum amount payable under this arrangement was $6.7 million.


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BRANDYWINE OPERATING PARTNERSHIP, L.P.NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTSJUNE 30, 2005

As part of the TRC acquisition, the Partnership acquired an interest in Two Logan Square, a 696,477 square foot office building in Philadelphia, Pennsylvania, primarily through a second and third mortgage secured by this property pursuant to which the Partnership receives substantially all cash flows from the property. The Partnership currently does not expect to take title to Two Logan Square until, at the earliest, September 2019. In the event that the Partnership takes title to Two Logan Square upon a foreclosure of its mortgages, the Partnership has agreed to make a payment to an unaffiliated third party with a residual interest as a fee owner of this property. The amount of the payment would be $0.6 million if we must pay a state and local transfer upon taking title, or $2.9 million if no transfer tax is payable upon transfer.


As part of the TRC acquisition and several of our other acquisitions, the Partnership has agreed not to sell the acquired properties. In the case of TRC, the Partnership agreed not to sell the acquired properties for periods ranging from three to 15 years from the acquisition date as follows: 201 Radnor Financial Center, 555 Radnor Financial Center and 300 Delaware Avenue (three years); One Rodney Square and 130/150/170 Radnor Financial Center (10 years); and One Logan Square, Two Logan Square and Radnor Corporate Center (15 years). The Partnership also owns 14 other properties that aggregate 1.0 million square feet and have agreed not to sell these properties for periods that expire through 2008. These agreements generally provide that we may dispose of the subject Properties only in transactions that qualify as tax-free exchanges under Section 1031 of the Code or in other tax deferred
 transactions. In the event that the Partnership sells any of the properties within the applicable restricted period in non-exempt transactions, the Partnership has agreed to pay significant tax liabilities that would be incurred by the parties who sold the applicable property.


The Partnership invests in its Properties and regularly incurs capital expenditures in the ordinary course of business to maintain the Properties. The Partnership believes that such expenditures enhance the competitiveness of the Properties. The Partnership also enters into construction, utility and service contracts in the ordinary course of business which may extend beyond one year. These contracts include terms that provide for cancellation with insignificant or no cancellation penalties.


|15. | CONDENSED
    CONSOLIDATING INFORMATION
|--- | ---------------------------------------

During 2004, the Company and the Partnership filed a Registration Statement on Form S-3 (the Registration Statement) with the Securities and Exchange Commission to register: (i) common shares of beneficial interest, preferred shares of beneficial interest, depository shares and warrants of the Company; (ii) debt securities of the Partnership (Debt Securities); and (iii) full and unconditional guaranties of the Debt Securities by the Company and certain wholly-owned subsidiaries of the Partnership (the Subsidiary Guarantors). The Partnership has other subsidiaries (Non-Guarantor Subsidiaries) that are not Subsidiary Guarantors.


The following summaries the condensed consolidating financial information for the Partnership as of June 30, 2005 and December 31, 2004 and for the three- and six-month periods ended June 30, 2005 and 2004:


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BRANDYWINE OPERATING PARTNERSHIP, L.P.
  NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTSJUNE 30, 2005

CONSOLIDATING BALANCE SHEETJUNE 30, 2005
  (in 000's)

|                                              |   | The         |  | Guarantor    |           | Non-Guarantor |   |              |  |              |            |   |  
|--------------------------------------------- | - | ----------- |  | ------------ | --------- | ------------- | - | ------------ |  | ------------ | ---------- | - | -
|                                              |   | Partnership |  | Subsidiaries |           | Subsidiaries  |   | Eliminations |  | Consolidated |           
|                                              |   |             |  |              |           |               |   |              |  |              |           
|ASSETS                                        |   |             |  |              |           |               |   |              |  |              |            |   |  
|Total Real estate investments, net            | $ | 933,214     |  | $            | 952,955   |               | $ | 571,768      |  | $            | —          |   | $
|Cash and cash equivalents                     |   | 9,321       |  |              | —         |               |   | —            |  |              | —          |   |  
|Escrowed cash                                 |   | 6,829       |  |              | 1,683     |               |   | 9,578        |  |              | —          |   |  
|Accounts receivable, net                      |   | 23,676      |  |              | 13,163    |               |   | 10,584       |  |              | —          |   |  
|Marketable securities                         |   | 661         |  |              | —         |               |   | —            |  |              | —          |   |  
|Investment in real estate ventures, at equity |   | 13,308      |  |              | —         |               |   | —            |  |              | —          |   |  
|Investments in Subsidiaries, at equity        |   | 1,331,589   |  |              | —         |               |   | —            |  |              | (1,331,589 | ) |  
|Deferred costs, net                           |   | 25,707      |  |              | 4,804     |               |   | 3,936        |  |              | —          |   |  
|Intangible assets, net                        |   | 3,750       |  |              | 59,086    |               |   | 22,798       |  |              | —          |   |  
|Other assets                                  |   | 18,701      |  |              | 18,489    |               |   | 1,898        |  |              | —          |   |  
|                                              |   |             |  |              |           |               |   |              |  |              |            |   |  
|Total assets                                  | $ | 2,366,756   |  | $            | 1,050,180 |               | $ | 620,562      |  | $            | (1,331,589 | ) | $
|                                              |   |             |  |              |           |               |   |              |  |              |            |   |  
|LIABILITIES
    AND PARTNERS' EQUITY          |   |             |  |              |           |               |   |              |  |              |            |   |  
|Mortgage notes payable                        | $ | 231,619     |  | $            | 12,995    |               | $ | 263,575      |  | $            | —          |   | $
|Unsecured notes                               |   | 636,534     |  |              | —         |               |   | —            |  |              | —          |   |  
|Unsecured credit facility                     |   | 265,000     |  |              | —         |               |   | —            |  |              | —          |   |  
|Accounts payable and accrued expenses         |   | 25,787      |  |              | 15,290    |               |   | 2,800        |  |              | —          |   |  
|Distributions payable                         |   | 27,583      |  |              | —         |               |   | —            |  |              | —          |   |  
|Tenant security deposits and deferred rents   |   | 12,895      |  |              | 2,263     |               |   | 3,259        |  |              | —          |   |  
|Acquired below market leases, net             |   | 558         |  |              | 28,777    |               |   | 7,185        |  |              | —          |   |  
|Other liabilities                             |   | 617         |  |              | 2,300     |               |   | 709          |  |              | —          |   |  
|                                              |   |             |  |              |           |               |   |              |  |              |            |   |  
|Total liabilities                             |   | 1,200,593   |  |              | 61,625    |               |   | 277,528      |  |              | —          |   |  
|Redeemable limited partnership units          |   | 62,923      |  |              | —         |               |   | —            |  |              | —          |   |  
|Total partners' equity                        |   | 1,103,240   |  |              | 988,555   |               |   | 343,034      |  |              | (1,331,589 | ) |  
|                                              |   |             |  |              |           |               |   |              |  |              |            |   |  
|Total liabilities and partners' equity        | $ | 2,366,756   |  | $            | 1,050,180 |               | $ | 620,562      |  | $            | (1,331,589 | ) | $
|                                              |   |             |  |              |           |               |   |              |  |              |            |   |  

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BRANDYWINE OPERATING PARTNERSHIP, L.P.
  NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTSJUNE 30, 2005

CONSOLIDATING BALANCE SHEETDECEMBER 31, 2004
  (in
  000's)

|                                              |   | The         |  | Guarantor    |           | Non-Guarantor |   |              |  |              |            |   |  
|--------------------------------------------- | - | ----------- |  | ------------ | --------- | ------------- | - | ------------ |  | ------------ | ---------- | - | -
|                                              |   | Partnership |  | Subsidiaries |           | Subsidiaries  |   | Eliminations |  | Consolidated |           
|                                              |   |             |  |              |           |               |   |              |  |              |           
|ASSETS                                        |   |             |  |              |           |               |   |              |  |              |            |   |  
|Total Real estate investments, net            | $ | 912,228     |  | $            | 892,860   |               | $ | 558,777      |  | $            | —          |   | $
|Cash and cash equivalents                     |   | 15,346      |  |              | —         |               |   | —            |  |              | —          |   |  
|Escrowed cash                                 |   | 6,501       |  |              | 1,751     |               |   | 9,728        |  |              | —          |   |  
|Accounts receivable, net                      |   | 21,911      |  |              | 13,132    |               |   | 9,597        |  |              | —          |   |  
|Marketable securities                         |   | 423         |  |              | —         |               |   | —            |  |              | —          |   |  
|Investment in real estate ventures, at equity |   | 12,754      |  |              | —         |               |   | —            |  |              | —          |   |  
|Investments in Subsidiaries, at equity        |   | 1,259,824   |  |              | —         |               |   | —            |  |              | (1,259,824 | ) |  
|Deferred costs, net                           |   | 27,170      |  |              | 3,446     |               |   | 3,833        |  |              | —          |   |  
|Intangible assets, net                        |   | 4,720       |  |              | 71,918    |               |   | 24,418       |  |              | —          |   |  
|Other assets                                  |   | 21,993      |  |              | 19,877    |               |   | 1,601        |  |              | —          |   |  
|                                              |   |             |  |              |           |               |   |              |  |              |            |   |  
|Total assets                                  | $ | 2,282,870   |  | $            | 1,002,984 |               | $ | 607,954      |  | $            | (1,259,824 | ) | $
|                                              |   |             |  |              |           |               |   |              |  |              |            |   |  
|LIABILITIES
    AND PARTNERS' EQUITY          |   |             |  |              |           |               |   |              |  |              |            |   |  
|Mortgage notes payable                        | $ | 233,599     |  | $            | 13,443    |               | $ | 271,192      |  | $            | —          |   | $
|Unsecured notes                               |   | 636,435     |  |              | —         |               |   | —            |  |              | —          |   |  
|Unsecured credit facility                     |   | 152,000     |  |              | —         |               |   | —            |  |              | —          |   |  
|Accounts payable and accrued expenses         |   | 31,290      |  |              | 13,952    |               |   | 4,001        |  |              | —          |   |  
|Distributions payable                         |   | 27,363      |  |              | —         |               |   | —            |  |              | —          |   |  
|Tenant security deposits and deferred rents   |   | 10,794      |  |              | 5,199     |               |   | 4,053        |  |              | —          |   |  
|Acquired below market leases, net             |   | 706         |  |              | 30,905    |               |   | 7,660        |  |              | —          |   |  
|Other liabilities                             |   | 633         |  |              | —         |               |   | 709          |  |              | —          |   |  
|                                              |   |             |  |              |           |               |   |              |  |              |            |   |  
|Total liabilities                             |   | 1,092,820   |  |              | 63,499    |               |   | 287,615      |  |              | —          |   |  
|Redeemable limited partnership units          |   | 60,586      |  |              | —         |               |   | —            |  |              | —          |   |  
|Total partners' equity                        |   | 1,129,464   |  |              | 939,485   |               |   | 320,339      |  |              | (1,259,824 | ) |  
|                                              |   |             |  |              |           |               |   |              |  |              |            |   |  
|Total liabilities and partners' equity        | $ | 2,282,870   |  | $            | 1,002,984 |               | $ | 607,954      |  | $            | (1,259,824 | ) | $
|                                              |   |             |  |              |           |               |   |              |  |              |            |   |  

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BRANDYWINE OPERATING PARTNERSHIP, L.P.
  NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTSJUNE 30, 2005

CONSOLIDATING STATEMENT OF OPERATIONSTHREE MONTH PERIOD
  ENDED JUNE 30, 2005
  (in 000's)

|                                               |             | The     |              | Guarantor |              | Non-Guarantor |              |        |              |   |        |   |  
|---------------------------------------------- | ----------- | ------- | ------------ | --------- | ------------ | ------------- | ------------ | ------ | ------------ | - | ------ | - | -
|                                               | Partnership |         | Subsidiaries |           | Subsidiaries |               | Eliminations |        | Consolidated |  
|                                               |             |         |              |           |              |               |              |        |              |  
|Revenue:                                       |             |         |              |           |              |               |              |        |              |   |        |   |  
|Rents                                          | $           | 37,235  |              | $         | 24,125       |               | $            | 20,428 |              | $ | —      |   | $
|Tenant reimbursements                          |             | 3,415   |              |           | 5,385        |               |              | 2,278  |              |   | —      |   |  
|Other                                          |             | 3,756   |              |           | 444          |               |              | 641    |              |   | (2,464 | ) |  
|                                               |             |         |              |           |              |               |              |        |              |   |        |   |  
|Total revenue                                  |             | 44,406  |              |           | 29,954       |               |              | 23,347 |              |   | (2,464 | ) |  
|                                               |             |         |              |           |              |               |              |        |              |   |        |   |  
|Operating Expenses:                            |             |         |              |           |              |               |              |        |              |   |        |   |  
|Property operating expenses                    |             | 13,408  |              |           | 10,133       |               |              | 6,724  |              |   | (2,464 | ) |  
|Real estate taxes                              |             | 4,010   |              |           | 3,538        |               |              | 2,135  |              |   | —      |   |  
|Depreciation and amortization                  |             | 10,102  |              |           | 11,292       |               |              | 6,554  |              |   | —      |   |  
|Administrative expenses                        |             | 4,378   |              |           | —            |               |              | —      |              |   | —      |   |  
|                                               |             |         |              |           |              |               |              |        |              |   |        |   |  
|Total operating expenses                       |             | 31,898  |              |           | 24,963       |               |              | 15,413 |              |   | (2,464 | ) |  
|                                               |             |         |              |           |              |               |              |        |              |   |        |   |  
|Operating income                               |             | 12,508  |              |           | 4,991        |               |              | 7,934  |              |   | —      |   |  
|Other Income (Expense):                        |             |         |              |           |              |               |              |        |              |   |        |   |  
|Interest income                                |             | 261     |              |           | 412          |               |              | 14     |              |   | —      |   |  
|Interest expense                               |             | (13,095 | )            |           | (273         | )             |              | (4,439 | )            |   | —      |   |  
|Equity in income of real estate ventures       |             | 993     |              |           | —            |               |              | —      |              |   | —      |   |  
|Equity in income of subsidiaries               |             | 8,639   |              |           | —            |               |              | —      |              |   | (8,639 | ) |  
|Net gains on sales of interests in real estate |             | —       |              |           | —            |               |              | —      |              |   | —      |   |  
|                                               |             |         |              |           |              |               |              |        |              |   |        |   |  
|Income before minority interest                |             | 9,306   |              |           | 5,130        |               |              | 3,509  |              |   | (8,639 | ) |  
|Minority interest                              |             | (121    | )            |           | —            |               |              | —      |              |   | —      |   |  
|                                               |             |         |              |           |              |               |              |        |              |   |        |   |  
|Income from continuing operations              |             | 9,185   |              |           | 5,130        |               |              | 3,509  |              |   | (8,639 | ) |  
|                                               |             |         |              |           |              |               |              |        |              |   |        |   |  
|Net income                                     | $           | 9,185   |              | $         | 5,130        |               | $            | 3,509  |              | $ | (8,639 | ) | $
|                                               |             |         |              |           |              |               |              |        |              |   |        |   |  

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BRANDYWINE OPERATING PARTNERSHIP, L.P.
  NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS
  JUNE 30, 2005

CONSOLIDATING STATEMENT OF OPERATIONSSIX
  MONTH PERIOD ENDED JUNE 30, 2005
(in 000's)

|                                                   |             | The     |              | Guarantor |              | Non-Guarantor |              |        |              |   |         |   |  
|-------------------------------------------------- | ----------- | ------- | ------------ | --------- | ------------ | ------------- | ------------ | ------ | ------------ | - | ------- | - | -
|                                                   | Partnership |         | Subsidiaries |           | Subsidiaries |               | Eliminations |        | Consolidated |  
|                                                   |             |         |              |           |              |               |              |        |              |  
|Revenue:                                           |             |         |              |           |              |               |              |        |              |   |         |   |  
|Rents                                              | $           | 74,195  |              | $         | 47,935       |               | $            | 40,886 |              | $ | —       |   | $
|Tenant
    reimbursements                          |             | 8,570   |              |           | 10,171       |               |              | 4,419  |              |   | —       |   |  
|Other                                              |             | 11,549  |              |           | 725          |               |              | 753    |              |   | (5,036  | ) |  
|                                                   |             |         |              |           |              |               |              |        |              |  
|Total
    revenue                                  |             | 94,314  |              |           | 58,831       |               |              | 46,058 |              |   | (5,036  | ) |  
|Operating Expenses:                                |             |         |              |           |              |               |              |        |              |   |         |   |  
|Property
    operating expenses                    |             | 27,516  |              |           | 21,224       |               |              | 13,976 |              |   | (5,036  | ) |  
|Real
    estate taxes                              |             | 8,024   |              |           | 7,134        |               |              | 4,182  |              |   | —       |   |  
|Depreciation
    and amortization                  |             | 21,916  |              |           | 21,539       |               |              | 12,928 |              |   | —       |   |  
|Administrative
    expenses                        |             | 9,130   |              |           | —            |               |              | —      |              |   | —       |   |  
|                                                   |             |         |              |           |              |               |              |        |              |  
|Total
    operating expenses                       |             | 66,586  |              |           | 49,897       |               |              | 31,086 |              |   | (5,036  | ) |  
|                                                   |             |         |              |           |              |               |              |        |              |  
|Operating income                                   |             | 27,728  |              |           | 8,934        |               |              | 14,972 |              |   | —       |   |  
|Other Income (Expense):                            |             |         |              |           |              |               |              |        |              |   | —       |   |  
|Interest
    income                                |             | 456     |              |           | 986          |               |              | 25     |              |   | —       |   |  
|Interest
    expense                               |             | (26,080 | )            |           | (523         | )             |              | (9,001 | )            |   | —       |   |  
|Equity
    in income of real estate ventures       |             | 1,551   |              |           | —            |               |              | —      |              |   | —       |   |  
|Equity
    in income of subsidiaries               |             | 15,393  |              |           | —            |               |              | —      |              |   | (15,393 | ) |  
|Net
    gains on sales of interests in real estate |             | —       |              |           | —            |               |              | —      |              |   | —       |   |  
|                                                   |             |         |              |           |              |               |              |        |              |  
|Income before minority interest                    |             | 19,048  |              |           | 9,397        |               |              | 5,996  |              |   | (15,393 | ) |  
|Minority interest                                  |             | (172    | )            |           | —            |               |              | —      |              |   | —       |   |  
|                                                   |             |         |              |           |              |               |              |        |              |  
|Income from continuing operations                  |             | 18,876  |              |           | 9,397        |               |              | 5,996  |              |   | (15,393 | ) |  
|                                                   |             |         |              |           |              |               |              |        |              |  
|Net income                                         | $           | 18,876  |              | $         | 9,397        |               | $            | 5,996  |              | $ | (15,393 | ) | $
|                                                   |             |         |              |           |              |               |              |        |              |   |        

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BRANDYWINE OPERATING PARTNERSHIP, L.P.
  NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTSJUNE 30, 2005

CONSOLIDATING STATEMENT OF CASH FLOWSSIX
  MONTH PERIOD ENDED JUNE 30, 2005
(in 000's)

|                                                                | The         |         | Guarantor    |   | Non-Guarantor |   |              |         |              |   |         |  
|--------------------------------------------------------------- | ----------- | ------- | ------------ | - | ------------- | - | ------------ | ------- | ------------ | - | ------- | -
|                                                                | Partnership |         | Subsidiaries |   | Subsidiaries  |   | Eliminations |         | Consolidated |  
|                                                                |             |         |              |   |               |   |              |         |              |  
|Cash flows from operating activities                            | $           | 40,492  |              | $ | 64,852        |   | $            | 28,925  |              | $ | (71,764 | )
|                                                                |             |         |              |   |               |   |              |         |              |   |         |  
|Cash flows from investing activities                            |             |         |              |   |               |   |              |         |              |   |         |  
|Acquisition
    of properties                                   |             | (17,120 | )            |   | (8,225        | ) |              | (13,509 | )            |   | —       |  
|Capital
    expenditures                                        |             | (20,505 | )            |   | (54,395       | ) |              | (7,133  | )            |   | —       |  
|Investment
    in unconsolidated Real Estate Ventures           |             | (119    | )            |   | —             |   |              | —       |              |   | —       |  
|Escrowed
    cash                                               |             | (327    | )            |   | 68            |   |              | 150     |              |   | —       |  
|Cash
    distributions from unconsolidated Real Estate Ventures |             |         |              |   |               |   |              |         |              |   |         |  
|in
    excess of equity income                                  |             | 226     |              |   | —             |   |              | —       |              |   | —       |  
|Leasing
    costs                                               |             | (2,780  | )            |   | (1,852        | ) |              | (816    | )            |   | —       |  
|                                                                |             |         |              |   |               |   |              |         |              |  
|Net
    cash flow from investing activities                     |             | (40,625 | )            |   | (64,404       | ) |              | (21,308 | )            |   | —       |  
|                                                                |             |         |              |   |               |   |              |         |              |   |         |  
|Cash flows from financing activities                            |             |         |              |   |               |   |              |         |              |   |         |  
|Proceeds
    (repayments) of Credit Facilities, net             |             | 113,000 |              |   | —             |   |              | —       |              |   | —       |  
|Repayments
    of mortgage notes payable                        |             | (1,980  | )            |   | (448          | ) |              | (7,617  | )            |   | —       |  
|Payments
    of deferred financing costs                        |             | (146    | )            |   | —             |   |              | —       |              |   | —       |  
|Exercise
    of stock options                                   |             | 10,432  |              |   | —             |   |              | —       |              |   | —       |  
|Distributions
    to preferred and common partnership units     |             | (53,070 | )            |   | —             |   |              | —       |              |   | —       |  
|Repurchase
    of preferred and common partnership unitholders  |             | (239    | )            |   | —             |   |              | —       |              |   | —       |  
|Distributions
    to minority interest holders                  |             | (2,175  | )            |   | —             |   |              | —       |              |   | —       |  
|Intercompany
    fundings and other, net                        |             | (71,764 | )            |   | —             |   |              | —       |              |   | 71,764  |  
|Other,
    net                                                  |             | 50      |              |   | —             |   |              | —       |              |   | —       |  
|                                                                |             |         |              |   |               |   |              |         |              |  
|Net
    cash flow from financing activities                     |             | (5,892  | )            |   | (448          | ) |              | (7,617  | )            |   | 71,764  |  
|                                                                |             |         |              |   |               |   |              |         |              |  
|Increase (decrease) in cash and cash equivalents                |             | (6,025  | )            |   | —             |   |              | —       |              |   | —       |  
|Cash and cash equivalents at beginning of period                |             | 15,346  |              |   | —             |   |              | —       |              |   | —       |  
|                                                                |             |         |              |   |               |   |              |         |              |  
|Cash and cash equivalents at end of period                      | $           | 9,321   |              | $ | —             |   | $            | —       |              | $ | —       |  
|                                                                |             |         |              |   |               |   |              |         |              |  

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BRANDYWINE OPERATING
  PARTNERSHIP, L.P.
  NOTES
    TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS
JUNE 30, 2005

CONSOLIDATING STATEMENT OF OPERATIONSTHREE MONTH PERIOD
  ENDED JUNE 30, 2004
(in 000's)

|                                                   | The         |        | Guarantor    |   | Non-Guarantor |   |              |        |              |   |        |  
|-------------------------------------------------- | ----------- | ------ | ------------ | - | ------------- | - | ------------ | ------ | ------------ | - | ------ | -
|                                                   | Partnership |        | Subsidiaries |   | Subsidiaries  |   | Eliminations |        | Consolidated |  
|                                                   |             |        |              |   |               |   |              |        |              |  
|Revenue:                                           |             |        |              |   |               |   |              |        |              |   |        |  
|Rents                                              | $           | 37,103 |              | $ | 12,754        |   | $            | 14,459 |              | $ | —      |  
|Tenant
    reimbursements                          |             | 3,722  |              |   | 2,598         |   |              | 1,738  |              |   | —      |  
|Other                                              |             | 4,233  |              |   | 84            |   |              | 1,045  |              |   | (1,522 | )
|                                                   |             |        |              |   |               |   |              |        |              |  
|Total
    revenue                                  |             | 45,058 |              |   | 15,436        |   |              | 17,242 |              |   | (1,522 | )
|                                                   |             |        |              |   |               |   |              |        |              |   |        |  
|Operating Expenses:                                |             |        |              |   |               |   |              |        |              |   |        |  
|Property
    operating expenses                    |             | 11,758 |              |   | 4,753         |   |              | 5,065  |              |   | (1,522 | )
|Real
    estate taxes                              |             | 3,766  |              |   | 1,590         |   |              | 1,490  |              |   | —      |  
|Depreciation
    and amortization                  |             | 9,603  |              |   | 2,884         |   |              | 4,339  |              |   | —      |  
|Administrative
    expenses                        |             | 3,954  |              |   | —             |   |              | —      |              |   | —      |  
|                                                   |             |        |              |   |               |   |              |        |              |  
|Total
    operating expenses                       |             | 29,081 |              |   | 9,227         |   |              | 10,894 |              |   | (1,522 | )
|                                                   |             |        |              |   |               |   |              |        |              |  
|Operating income                                   |             | 15,977 |              |   | 6,209         |   |              | 6,348  |              |   | —      |  
|Other Income (Expense):                            |             |        |              |   |               |   |              |        |              |   |        |  
|Interest
    income                                |             | 128    |              |   | 407           |   |              | 6      |              |   | —      |  
|Interest
    expense                               |             | (8,232 | )            |   | (277          | ) |              | (3,439 | )            |   | —      |  
|Equity
    in income of real estate ventures       |             | 674    |              |   | —             |   |              | —      |              |   | —      |  
|Equity
    in income of subsidiaries               |             | 9,234  |              |   | —             |   |              | —      |              |   | (9,234 | )
|Net
    gains on sales of interests in real estate |             | 1,148  |              |   | —             |   |              | —      |              |   | —      |  
|                                                   |             |        |              |   |               |   |              |        |              |  
|Income before minority interest                    |             | 18,929 |              |   | 6,339         |   |              | 2,915  |              |   | (9,234 | )
|Minority interest                                  |             | (34    | )            |   | —             |   |              | —      |              |   | —      |  
|                                                   |             |        |              |   |               |   |              |        |              |  
|Income from continuing operations                  |             | 18,895 |              |   | 6,339         |   |              | 2,915  |              |   | (9,234 | )
|Discontinued operations:                           |             |        |              |   |               |   |              |        |              |   |        |  
|Income
    from discontinued operations            |             | (193   | )            |   | (17           | ) |              | (3     | )            |   | —      |  
|Net
    Gain on Disposition                        |             | 45     |              |   | —             |   |              | —      |              |   | —      |  
|                                                   |             |        |              |   |               |   |              |        |              |  
|Income from discontinued operations                |             | (148   | )            |   | (17           | ) |              | (3     | )            |   | —      |  
|                                                   |             |        |              |   |               |   |              |        |              |  
|Net income                                         | $           | 18,747 |              | $ | 6,322         |   | $            | 2,912  |              | $ | (9,234 | )
|                                                   |             |        |              |   |               |   |              |        |              |  

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BRANDYWINE OPERATING PARTNERSHIP, L.P.NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

JUNE 30, 2005

CONSOLIDATING STATEMENT OF OPERATIONS
SIX MONTH PERIOD ENDED JUNE 30, 2004
(in 000's)

|                                                   | The          |              | Guarantor    |              | Non-Guarantor |   |   |        |   |  
|-------------------------------------------------- | ------------ | ------------ | ------------ | ------------ | ------------- | - | - | ------ | - | -
|Partnership                                        | Subsidiaries | Subsidiaries | Eliminations | Consolidated
|                                                   |              |              |              |             
|Revenue:                                           |              |              |              |              |               |   |   |        |   |  
|Rents                                              | $            | 73,301       |              | $            | 25,314        |   | $ | 29,381 |   | $
|Tenant
    reimbursements                          |              | 7,434        |              |              | 5,215         |   |   | 3,402  |   |  
|Other                                              |              | 7,216        |              |              | 166           |   |   | 1,093  |   |  
|                                                   |              |              |              |              |               |   |   |        |   |  
|Total
    revenue                                  |              | 87,951       |              |              | 30,695        |   |   | 33,876 |   |  
|Operating
    Expenses:                            |              |              |              |              |               |   |   |        |   |  
|Property
    operating expenses                    |              | 24,634       |              |              | 10,225        |   |   | 10,454 |   |  
|Real
    estate taxes                              |              | 7,547        |              |              | 3,138         |   |   | 3,042  |   |  
|Depreciation
    and amortization                  |              | 18,569       |              |              | 5,749         |   |   | 8,315  |   |  
|Administrative
    expenses                        |              | 7,443        |              |              | —             |   |   | —      |   |  
|                                                   |              |              |              |              |               |   |   |        |   |  
|Total
    operating expenses                       |              | 58,193       |              |              | 19,112        |   |   | 21,811 |   |  
|                                                   |              |              |              |              |               |   |   |        |   |  
|Operating
    income                               |              | 29,758       |              |              | 11,583        |   |   | 12,065 |   |  
|Other
    Income (Expense):                        |              |              |              |              |               |   |   |        |   |  
|Interest
    income                                |              | 248          |              |              | 791           |   |   | 13     |   |  
|Interest
    expense                               |              | (16,668      | )            |              | (517          | ) |   | (6,867 | ) |  
|Equity
    in income of real estate ventures       |              | 908          |              |              | —             |   |   | —      |   |  
|Equity
    in income of subsidiaries               |              | 17,441       |              |              | —             |   |   | —      |   |  
|Net
    gains on sales of interests in real estate |              | 1,148        |              |              | —             |   |   | —      |   |  
|                                                   |              |              |              |              |               |   |   |        |   |  
|Income before minority interest                    |              | 32,835       |              |              | 11,857        |   |   | 5,211  |   |  
|Minority interest                                  |              | (34          | )            |              | —             |   |   | —      |   |  
|                                                   |              |              |              |              |               |   |   |        |   |  
|Income from continuing operations                  |              | 32,801       |              |              | 11,857        |   |   | 5,211  |   |  
|Discontinued operations:                           |              |              |              |              |               |   |   |        |   |  
|Income
    from discontinued operations            |              | (383         | )            |              | 6             |   |   | 163    |   |  
|Net
    Gain on Disposition                        |              | 45           |              |              | 382           |   |   | (178   | ) |  
|                                                   |              |              |              |              |               |   |   |        |   |  
|Income from discontinued operations                |              | (338         | )            |              | 388           |   |   | (15    | ) |  
|                                                   |              |              |              |              |               |   |   |        |   |  
|Net income                                         | $            | 32,463       |              | $            | 12,245        |   | $ | 5,196  |   | $
|                                                   |              |              |              |              |               |   |   |        |   |  

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BRANDYWINE OPERATING PARTNERSHIP, L.P.NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

JUNE 30, 2005

CONSOLIDATING STATEMENT OF CASH FLOWS
SIX
MONTH PERIOD ENDED JUNE 30, 2004
(in 000's)

|                                                                                                    | The          |              | Guarantor    |              | Non-Guarantor |   |   |        |   |   |         |  
|--------------------------------------------------------------------------------------------------- | ------------ | ------------ | ------------ | ------------ | ------------- | - | - | ------ | - | - | ------- | -
|Partnership                                                                                         | Subsidiaries | Subsidiaries | Eliminations | Consolidated
|                                                                                                    |              |              |              |             
|Cash
    flows from operating activities                                                            | $            | 52,632       |              | $            | 30,415        |   | $ | 6,847  |   | $ | (16,552 | )
|                                                                                                    |              |              |              |              |               |   |   |        |   |   |         |  
|Cash
    flows from investing activities                                                            |              |              |              |              |               |   |   |        |   |   |         |  
|Proceeds
    from sale of properties                                                                |              | 17,937       |              |              | 2,012         |   |   | —      |   |   | —       |  
|Capital
    expenditures                                                                            |              | (10,338      | )            |              | (31,873       | ) |   | (4,075 | ) |   | —       |  
|Investment
    in unconsolidated Real Estate Ventures                                               |              | (81          | )            |              | —             |   |   | —      |   |   | —       |  
|Escrowed
    cash                                                                                   |              | (762         | )            |              | 12            |   |   | (433   | ) |   | —       |  
|Cash
         distributions from unconsolidated Real Estate Ventures in excess of
    equity income |              | 416          |              |              | —             |   |   | —      |   |   | —       |  
|Leasing
    costs                                                                                   |              | (3,427       | )            |              | (187          | ) |   | (730   | ) |   | —       |  
|Increase
    in cash due to consolidation of variable interest entities                             |              | 426          |              |              | —             |   |   | —      |   |   | —       |  
|                                                                                                    |              |              |              |              |               |   |   |        |   |   |         |  
|Net
    cash flow from investing activities                                                         |              | 4,171        |              |              | (30,036       | ) |   | (5,238 | ) |   | —       |  
|                                                                                                    |              |              |              |              |               |   |   |        |   |   |         |  
|Cash
    flows from financing activities                                                            |              |              |              |              |               |   |   |        |   |   |         |  
|Proceeds
    (repayments) of Credit Facilities, net                                                 |              | (35,000      | )            |              | —             |   |   | —      |   |   | —       |  
|Repayments
    of mortgage notes payable                                                            |              | (37,112      | )            |              | (379          | ) |   | (1,609 | ) |   | —       |  
|Payments
    of deferred financing costs                                                            |              | (3,165       | )            |              | —             |   |   | —      |   |   | —       |  
|Exercise
    of stock options                                                                       |              | 1,200        |              |              | —             |   |   | —      |   |   | —       |  
|Distributions
    to preferred and common partnership units                                         |              | (40,763      | )            |              | —             |   |   | —      |   |   | —       |  
|Proceeds
    from common partnership unit issuance, net                                             |              | 175,259      |              |              | —             |   |   | —      |   |   | —       |  
|Repurchase
    of preferred and common partnership unitholders                                      |              | (95,436      | )            |              | —             |   |   | —      |   |   | —       |  
|Distributions
    to minority interest holders                                                      |              | (3,211       | )            |              | —             |   |   | —      |   |   | —       |  
|Intercompany
    fundings and other, net                                                            |              | (16,552      | )            |              | —             |   |   | —      |   |   | 16,552  |  
|Other,
    net                                                                                      |              | (30          | )            |              | —             |   |   | —      |   |   | —       |  
|                                                                                                    |              |              |              |              |               |   |   |        |   |   |         |  
|Net
    cash flow from financing activities                                                         |              | (54,810      | )            |              | (379          | ) |   | (1,609 | ) |   | 16,552  |  
|                                                                                                    |              |              |              |              |               |   |   |        |   |   |         |  
|Increase
    (decrease) in cash and cash equivalents                                                |              | 1,993        |              |              | —             |   |   | —      |   |   | —       |  
|Cash
    and cash equivalents at beginning of period                                                |              | 8,552        |              |              | —             |   |   | —      |   |   | —       |  
|                                                                                                    |              |              |              |              |               |   |   |        |   |   |         |  
|Cash
    and cash equivalents at end of period                                                      | $            | 10,545       |              | $            | —             |   | $ | —      |   | $ | —       |  
|                                                                                                    |              |              |              |              |               |   |   |        |   |   |         |  

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|Item
    2. | Managements
            Discussion and Analysis of Financial Condition and Results of Operations
|----------- | -------------------------------------------------------------------------------------------------

The
        following discussion and analysis should be read in conjunction with
        the financial statements and notes thereto appearing elsewhere herein.
        This Form 10-Q contains forward-looking statements for purposes of the
        Securities Act of 1933 and the Securities Exchange Act of 1934 and as
        such may involve known and unknown risks, uncertainties and other factors
        that may cause the actual results, performance or achievements of the
        Partnership to be materially different from results, performance or achievements
        expressed or implied by such forward-looking statements. Although the
        Partnership believes that the expectations reflected in such forward-looking
        statements are based upon reasonable assumptions, there can be no assurance
        that these expectations will be realized. The Partnership assumes no
        obligation to update or supplement forward-looking statements that become
        untrue because of subsequent events. Factors that could cause actual
        results to differ materially from managements current expectations
        include, but are not limited to, changes in general economic conditions,
        changes in local real estate conditions (including changes in rental
        rates and the number of competing properties), changes in the economic
        conditions affecting industries in which the Partnership's principal
        tenants compete, the Partnerships failure to lease unoccupied space
        in accordance with the Partnerships projections, the failure of
        the Partnership to re-lease occupied space upon expiration of leases,
        the bankruptcy of major tenants, changes in prevailing interest rates,
        the unavailability of equity and debt financing, unanticipated costs
        associated with the acquisition and integration of the Partnerships
        acquisitions, costs to complete and lease-up pending developments, increased
        costs for, or lack of availability of, adequate insurance, including
        for terrorist acts, demand for tenant services beyond those traditionally
        provided by landlords, potential liability under environmental or other
        laws, the existence of complex regulations relating to the Companys
        status as a REIT and to the Partnerships acquisition, disposition
        and development activities, the adverse consequences of the Companys
        failure to qualify as a REIT and the other risks identified in the Partnerships
        Annual Report on Form 10-K for the year ended December 31, 2004.


OVERVIEW

The
        Partnership currently manages its portfolio within five geographic segments:
(1) PennsylvaniaWest, (2) PennsylvaniaNorth, (3) New Jersey, (4)
Urban and (5) Virginia. The Partnership believes it has established an effective
platform in these office and industrial markets that provides a foundation for
achieving its goals of maximizing market penetration, optimizing operating economies
of scale and creating long-term investment value.


As
      of June 30, 2005, the
Partnerships portfolio consisted of 223 office properties, 24 industrial
facilities and one mixed-use property that contained an aggregate of approximately
19.6 million net rentable square feet. As of June 30, 2005, we held economic
interests in nine unconsolidated real estate ventures that contained approximately
1.6 million net rentable square feet (the Real Estate Ventures) formed
with third parties to develop or own commercial properties. In addition, we own
interests in two consolidated real estate ventures that own two office properties
containing approximately 0.2 million net rentable square feet.


The Partnership receives income primarily from rental revenue (including tenant
reimbursements) from the Properties and, to a lesser extent, from the management
of properties owned by third parties and from investments in the Real Estate
Ventures.


The
      Partnerships financial performance is dependent upon the demand for
office and other commercial space in its markets. Current economic conditions,
including recessionary pressures and capital market volatility, have enhanced
the challenges facing the Partnership.


The Partnership seeks revenue growth through an increase in occupancy of its
portfolio (91.4% at June 30, 2005, 87.8% including the five lease-up assets acquired
as part of the TRC acquisition in September 2004) and through acquisitions. However,
with a downturn in general leasing activity, owners of commercial real estate,
including the Partnership, are experiencing longer periods of rental downtime
and are incurring higher capital costs and leasing commissions to achieve targeted
tenancies.


As the Partnership seeks to increase revenue, management also focuses on strategies
to minimize operating risks, including (i) tenant rollover risk, (ii) tenant
credit risk and (iii) development risk.


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Tenant Rollover
Risk:

The Partnership is subject to the risk that, upon expiration, leases
may not be renewed, the space may not be re-leased, or the terms of renewal or
re-leasing (including the cost of renovations) may be less favorable than the
current lease terms. Leases totaling approximately 7.4% of the net rentable square
feet of the Properties as of June 30, 2005 expire without penalty through the
end of 2005. In addition, leases totaling approximately 11.7% of the net rentable
square feet of the Properties as of June 30, 2005 are scheduled to expire without
penalty in 2006. The Partnership maintains an active dialogue with its tenants
in an effort to achieve lease renewals. The Partnerships retention rate for leases that were scheduled to expire in the six-month period ended June 30, 2005 was 74.7%. If the Partnership is unable to renew leases for a substantial portion of the space under expiring leases, or promptly re-lease this
 space at anticipated rental rates, the Partnerships cash flow could be
 adversely impacted.


Tenant Credit
Risk:

In the event of a tenant default, the Partnership may experience delays in enforcing its rights as a landlord and may incur substantial costs in protecting its investment. Management regularly evaluates its accounts receivable reserve policy in light of its tenant base and general and local economic conditions. The accounts receivable allowances were $4.7 million or 9.1% of total receivables (including accrued rent receivable) as of June 30, 2005 compared to $4.2 million or 8.4% of total receivables (including accrued rent receivable) as of December 31, 2004.


Development
Risk:

As of June 30, 2005, the Partnership had in development three office
properties and had in redevelopment three office properties aggregating 1.1 million
square feet. The total net investment in these projects is estimated to be $230.3
million of which $167.0 million had been incurred as of June 30, 2005. As of
June 30, 2005, these projects were approximately 80% leased. One of these development
properties is Cira Centre, a 29-story office tower located adjacent to Amtraks
30th Street Station in the University City District of Philadelphia.
The total net investment in this project is estimated to be $177.6 million and
the Partnership expects to complete the project in the fourth quarter of 2005.
As of June 30, 2005, the office portion of this project was approximately 93%
 leased. While the Partnership is actively marketing space at these projects
to prospective tenants, management cannot provide assurance as to the timing
or terms of any leases for such space. If one or more of the Partnerships
assumptions regarding the successful efforts of development and leasing are incorrect,
the resulting adjustments could impact earnings.


ACQUISITIONS AND DISPOSITIONS OF REAL ESTATE INVESTMENTS

During the six-month period ended June 30, 2005, the Partnership acquired one office property containing 385,884 net rentable square feet and 28.4 acres of developable land for an aggregate purchase price of $41.8 million.


CRITICAL ACCOUNTING POLICIES AND ESTIMATES

Managements Discussion and Analysis of Financial Condition and Results of Operations discusses the Partnerships
consolidated financial statements, which have been prepared in accordance with
accounting principles generally accepted in the United States of America. The
preparation of these financial statements requires management to make estimates
and assumptions that affect the reported amounts of assets and liabilities and
the disclosure of contingent liabilities at the date of the financial statements
and the reported amounts of revenue and expenses during the reporting period.
Management bases its estimates and assumptions on historical experience and current
economic conditions. On an on-going basis, management evaluates its estimates
and assumptions including those related to revenue, impairment of long-lived
assets and the allowance for doubtful accounts. Actual results may differ from
those estimates and assumptions.


The Partnerships Annual Report on Form 10-K for the year ended December 31, 2004, contains a discussion of the Partnerships critical accounting policies. See also Note 2 in the Partnerships unaudited consolidated financial statements for the six-month period ended June 30, 2005 as set forth herein. Management discusses the Partnerships critical accounting policies and managements judgments and estimates with the Companys
Audit Committee.


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RESULTS OF OPERATIONS

Comparison of the Three-Month Periods Ended June 30, 2005 and 2004

The table below shows selected operating information for the Same Store Property Portfolio and the Total Portfolio. The Same Store Property Portfolio consists of 226 Properties containing an aggregate of approximately 15.0 million net rentable square feet that were owned for the entire three-month periods ended June 30, 2005 and 2004. This table also includes a reconciliation from the Same Store Property Portfolio to the Total Portfolio (i.e. all properties owned by us during the three-month periods ended June 30, 2005 and 2004) by providing information for the properties which were acquired, sold, or placed into service and administrative/elimination information for the three-month periods ended June 30, 2005 and 2004.


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|                                                     |             |                            |                      |                 |        |  |   |            |   |        |  |   | Properties |  |   | Development |  | Administrative/ |       |   |   |       |  |        |   |        |   |   |         |  
|---------------------------------------------------- | ----------- | -------------------------- | -------------------- | --------------- | ------ |  | - | ---------- | - | ------ |  | - | ---------- |  | - | ----------- |  | --------------- | ----- | - | - | ----- |  | ------ | - | ------ | - | - | ------- | -
|Same
    Store Property Portfolio                    | Acquired(a) | Properties                 | Eliminations
    (b) | Total Portfolio
|                                                     |             |                            |                      |                 |        |  |   |            |   |        |  |   |            |  |   |             |  |                 |       |   |   |       |  |        |   |        |   |   |         |  
|                                                     |             |                            |                      |                 |        |  |   | Increase/  |   | %      |  |   |            |  |   |             |  |                 |       |   |   |       |  |        |   |        |   |   |         |  
|                                                     |             | 2005                       |                      |                 | 2004   |  |   | (Decrease) |   | Change |  |   | 2005       |  |   | 2004        |  |                 | 2005  |   |   | 2004  |  | 2005   |   | 2004   |   |   | 2005    |  
|                                                     |             |                            |                      |                 |        |  |   |            |   |        |  |   |            |  |   |             |  |                 |       |   |   |       |  |        |   |        |   |   |         |  
|                                                     |             | (dollars
    in thousands) |                     
|Revenue:                                             |             |                            |                      |                 |        |  |   |            |   |        |  |   |            |  |   |             |  |                 |       |   |   |       |  |        |   |        |   |   |         |  
|Rents                                                | $           | 62,091                     |                      | $               | 61,946 |  | $ | 145        |   | 0%     |  | $ | 18,452     |  | $ | 1,301       |  | $               | 1,245 |   | $ | 1,069 |  |        |   |        |   | $ | 81,788  |  
|Tenant
        reimbursements                        |             | 7,596                      |                      |                 | 7,816  |  |   | (220       | ) | -3%    |  |   | 3,333      |  |   | 192         |  |                 | 149   |   |   | 50    |  | —      |   | —      |   |   | 11,078  |  
|Other                                                |             | 916                        |                      |                 | 1,260  |  |   | (344       | ) | -27%   |  |   | 264        |  |   | —           |  |                 | 3     |   |   | 13    |  | 1,194  |   | 2,567  |   |   | 2,377   |  
|                                                     |             |                            |                      |                 |        |  |   |            |   |        |  |   |            |  |   |             |  |                 |       |   |   |       |  |        |   |        |   |   |         |  
|Total
        revenue                                |             | 70,603                     |                      |                 | 71,022 |  |   | (419       | ) | -1%    |  |   | 22,049     |  |   | 1,493       |  |                 | 1,397 |   |   | 1,132 |  | 1,194  |   | 2,567  |   |   | 95,243  |  
|                                                     |             |                            |                      |                 |        |  |   |            |   |        |  |   |            |  |   |             |  |                 |       |   |   |       |  |        |   |        |   |   |         |  
|Operating
        Expenses:                          |             |                            |                      |                 |        |  |   |            |   |        |  |   |            |  |   |             |  |                 |       |   |   |       |  |        |   |        |   |   |         |  
|Property
        operating expenses                  |             | 22,360                     |                      |                 | 21,321 |  |   | 1,039      |   | 5%     |  |   | 7,093      |  |   | 542         |  |                 | 579   |   |   | 440   |  | (2,231 | ) | (2,249 | ) |   | 27,801  |  
|Real
        estate taxes                            |             | 6,969                      |                      |                 | 6,629  |  |   | 340        |   | 5%     |  |   | 2,446      |  |   | 5           |  |                 | 268   |   |   | 212   |  | —      |   | —      |   |   | 9,683   |  
|Depreciation
        and amortization                |             | 16,277                     |                      |                 | 15,763 |  |   | 514        |   | 3%     |  |   | 10,599     |  |   | 370         |  |                 | 809   |   |   | 445   |  | 263    |   | 248    |   |   | 27,948  |  
|Administrative
        expenses                      |             |                            |                      |                 |        |  |   |            |   |        |  |   |            |  |   |             |  |                 |       |   |   |       |  | 4,378  |   | 3,954  |   |   | 4,378   |  
|                                                     |             |                            |                      |                 |        |  |   |            |   |        |  |   |            |  |   |             |  |                 |       |   |   |       |  |        |   |        |   |   |         |  
|Total
        property operating expenses            |             | 45,606                     |                      |                 | 43,713 |  |   | 1,893      |   | 4%     |  |   | 20,138     |  |   | 917         |  |                 | 1,656 |   |   | 1,097 |  | 2,410  |   | 1,953  |   |   | 69,810  |  
|                                                     |             |                            |                      |                 |        |  |   |            |   |        |  |   |            |  |   |             |  |                 |       |   |   |       |  |        |   |        |   |   |         |  
|Operating
        Income                             |             | 24,997                     |                      |                 | 27,309 |  |   | (2,312)    |   | -8%    |  |   | 1,911      |  |   | 576         |  |                 | (259  | ) |   | 35    |  | (1,216 | ) | 614    |   |   | 25,433  |  
|Other
        Income (Expense):                      |             |                            |                      |                 |        |  |   |            |   |        |  |   |            |  |   |             |  |                 |       |   |   |       |  |        |   |        |   |   |         |  
|Interest
        income                              |             |                            |                      |                 |        |  |   |            |   |        |  |   |            |  |   |             |  |                 |       |   |   |       |  |        |   |        |   |   | 687     |  
|Interest
        expense                             |             |                            |                      |                 |        |  |   |            |   |        |  |   |            |  |   |             |  |                 |       |   |   |       |  |        |   |        |   |   | (17,807 | )
|Equity
        in income of real estate ventures     |             |                            |                      |                 |        |  |   |            |   |        |  |   |            |  |   |             |  |                 |       |   |   |       |  |        |   |        |   |   | 993     |  
|Net
        gain on sales of interest in real estate |             |                            |                      |                 |        |  |   |            |   |        |  |   |            |  |   |             |  |                 |       |   |   |       |  |        |   |        |   |   | —       |  
|                                                     |             |                            |                      |                 |        |  |   |            |   |        |  |   |            |  |   |             |  |                 |       |   |   |       |  |        |   |        |   |   |         |  
|Income
        before minority interest              |             |                            |                      |                 |        |  |   |            |   |        |  |   |            |  |   |             |  |                 |       |   |   |       |  |        |   |        |   |   | 9,306   |  
|Minority
        interest attributable to            |             |                            |                      |                 |        |  |   |            |   |        |  |   |            |  |   |             |  |                 |       |   |   |       |  |        |   |        |   |   |         |  
|continuing
        operations                        |             |                            |                      |                 |        |  |   |            |   |        |  |   |            |  |   |             |  |                 |       |   |   |       |  |        |   |        |   |   | (121    | )
|                                                     |             |                            |                      |                 |        |  |   |            |   |        |  |   |            |  |   |             |  |                 |       |   |   |       |  |        |   |        |   |   |         |  
|Income
        from continuing operations            |             |                            |                      |                 |        |  |   |            |   |        |  |   |            |  |   |             |  |                 |       |   |   |       |  |        |   |        |   |   | 9,185   |  
|Income
        from discontinued operations (c)      |             |                            |                      |                 |        |  |   |            |   |        |  |   |            |  |   |             |  |                 |       |   |   |       |  |        |   |        |   |   | —       |  
|                                                     |             |                            |                      |                 |        |  |   |            |   |        |  |   |            |  |   |             |  |                 |       |   |   |       |  |        |   |        |   |   |         |  
|Net
        Income                                   |             |                            |                      |                 |        |  |   |            |   |        |  |   |            |  |   |             |  |                 |       |   |   |       |  |        |   |        |   |   | 9,185   |  
|                                                     |             |                            |                      |                 |        |  |   |            |   |        |  |   |            |  |   |             |  |                 |       |   |   |       |  |        |   |        |   |   |         |  

|(a) | — | Represents
        the operations of properties acquired that are not included in the definition
        of the Same Store Property Portfolio.                                                                                                                                 
|--- | - | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|(b) | — | Represents
        certain revenue and expenses at the corporate level as well as various
        intercompany costs that are eliminated in consolidation.                                                                                                                     
|(c) | — | All properties
        sold during the respective periods meet the criteria for treatment as
        a discontinued operation and have been presented as such under SFAS No.
        144 (SFAS
        144''), Accounting for the Impairment or Disposal of Long-Lived Assets.

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Revenue

Revenue increased by $19.0 million primarily due to properties that were acquired in 2004, offset by a decrease in other income in 2005 as compared to 2004. Average occupancy for the Same Store Properties increased to 92.3% in 2005 from 90.9% in 2004. Other revenue represents lease termination fees, bankruptcy settlement proceeds, leasing commissions and third-party management fees. Total portfolio other revenue decreased to $2.4 million for the three-month period ended June 30, 2005 as compared to $3.8 million for the comparable period in 2004 primarily due to the settlement of a previously disclosed litigation totaling $1.0 million plus accrued interest on the Partnerships security deposit in 2004.


Operating Expenses and Real Estate Taxes

Property operating expenses increased by $7.7 million in 2005 primarily due to the properties acquired in the latter half of 2004 and higher expense levels in 2005 on the Same Store Properties. Property operating expenses for the Same Store Properties increased by $1.0 million in 2005 over 2004 due to increases in utility expenses and repairs and maintenance expenses at various Same Store Properties.


Real estate taxes increased by $2.8 million primarily due to the properties acquired in the latter half of 2004. Real estate taxes for the Same Store Properties increased by $0.3 million in 2005 as a result of higher tax rates and property assessments.


Depreciation and Amortization Expense

Depreciation and amortization expense increased by $11.1 million in 2005 primarily due to the properties acquired in the second half of 2004 and amortization from additional tenant improvements and leasing commissions incurred over the year.


Administrative Expenses

Administrative expenses increased by $0.4 million in 2005 primarily due to the cost of additional personnel hired as part of the TRC acquisition in September 2004 and higher compensation and benefits costs for employees.


Interest Expense

Interest expense increased by $5.9 million in 2005 primarily due to increased debt from the Partnerships fixed rate unsecured notes issued in the fourth quarter of 2004 offset by a decrease in the effective borrowing cost under the Partnerships unsecured credit facilities, including the effect of interest rate hedges during 2004.


Equity in Income of Real Estate Ventures

Equity in income of Real Estate Ventures increased by $0.3 million in 2005 as a result of increased net income from the Real Estate Ventures.


Net Gain on Sales of Interests in Real Estate

During the three-month period ended June 30, 2004, the Partnership sold one office property containing 103,000 net rentable square feet and one parcel of land containing 5.3 acres for an aggregate $18.2 million, realizing a net gain of $1.2 million (approximately $45,000 of which is included in income from discontinued operations). There were no property sales during the three-month period ended June 30, 2005.


Minority Interest

Minority interest from continuing operations represents the income attributable to the interest of the outside joint venture partners in the net income (loss) of the Partnerships two consolidated real estate ventures. These two real estate ventures were consolidated effective March 31, 2004.


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Discontinued Operations

Discontinued operations increased by $0.2 million in 2005 primarily due to the timing of sales for assets included in discontinued operations.


Comparison of the Six-Month Periods Ended June 30, 2005 and 2004

The table below shows selected operating information for the Same Store Property Portfolio and the Total Portfolio. The Same Store Property Portfolio consists of 226 Properties containing an aggregate of approximately 15.0 million net rentable square feet that were owned for the entire six-month periods ended June 30, 2005 and 2004. This table also includes a reconciliation from the Same Store Property Portfolio to the Total Portfolio (i.e. all properties owned by us during the six-month periods ended June 30, 2005 and 2004) by providing information for the properties which were acquired, sold, or placed into service and administrative/elimination information for the six-month periods ended June 30, 2005 and 2004.


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|                                                            |                                         |                                | Properties             |   | Properties         |  | Development |   | Administrative/            |  |                           |       
|----------------------------------------------------------- | --------------------------------------- | ------------------------------ | ---------------------- | - | ------------------ |  | ----------- | - | -------------------------- |  | ------------------------- | ------
|                                                            | Same
          Store Property Portfolio |                                | Acquired
          (a) |   | Sold
          (a) |  | Properties  |   | Eliminations
          (b) |  | Total
          Portfolio |       
|                                                            |                                         |                                |                        |   |                    |  |             |   |                            |  |                           |       
|                                                            |                                         |                                |                        |   |                    |  | Increase/   |   | %                          |  |                           |       
|                                                            |                                         | 2005                           |                        |   | 2004               |  | (Decrease)  |   | Change                     |  |                           | 2005  
|                                                            |                                         |                                |                        |   |                    |  |             |   |                            |  |                           |       
|                                                            |                                         | (dollars
        in thousands) |                       
|Revenue:                                                    |                                         |                                |                        |   |                    |  |             |   |                            |  |                           |       
|Rents                                                       | $                                       | 124,009                        |                        | $ | 124,406            |  | ($397       | ) | 0%                         |  | $                         | 36,629
|Tenant
        reimbursements                               |                                         | 16,867                         |                        |   | 15,715             |  | 1,152       |   | 7%                         |  |                           | 6,006 
|Other                                                       |                                         | 4,828                          |                        |   | 1,537              |  | 3,291       |   | 100%                       |  |                           | 562   
|                                                            |                                         |                                |                        |   |                    |  |             |   |                            |  |                           |       
|Total revenue                                               |                                         | 145,704                        |                        |   | 141,658            |  | 4,046       |   | 3%                         |  |                           | 43,197
|Operating Expenses:                                         |                                         |                                |                        |   |                    |  |             |   |                            |  |                           |       
|Property
        operating expenses                         |                                         | 46,458                         |                        |   | 44,908             |  | 1,550       |   | 3%                         |  |                           | 14,790
|Real
        estate taxes                                   |                                         | 14,023                         |                        |   | 13,247             |  | 776         |   | 6%                         |  |                           | 4,780 
|Depreciation
        and amortization                       |                                         | 34,206                         |                        |   | 30,939             |  | 3,267       |   | 11%                        |  |                           | 20,410
|Administrative
        expenses                             |                                         |                                |                        |   |                    |  |             |   |                            |  |                           |       
|                                                            |                                         |                                |                        |   |                    |  |             |   |                            |  |                           |       
|Total property operating
        expenses                   |                                         | 94,687                         |                        |   | 89,094             |  | 5,593       |   | 6%                         |  |                           | 39,980
|                                                            |                                         |                                |                        |   |                    |  |             |   |                            |  |                           |       
|Operating Income                                            |                                         | 51,017                         |                        |   | 52,564             |  | (1,547      | ) | -3%                        |  |                           | 3,217 
|Other Income (Expense):                                     |                                         |                                |                        |   |                    |  |             |   |                            |  |                           |       
|Interest
        income                                     |                                         |                                |                        |   |                    |  |             |   |                            |  |                           |       
|Interest
        expense                                    |                                         |                                |                        |   |                    |  |             |   |                            |  |                           |       
|Equity
          in income of real estate ventures          |                                         |                                |                        |   |                    |  |             |   |                            |  |                           |       
|Net
          gain on sales of interest in real estate      |                                         |                                |                        |   |                    |  |             |   |                            |  |                           |       
|                                                            |                                         |                                |                        |   |                    |  |             |   |                            |  |                           |       
|Income before minority
        interest                     |                                         |                                |                        |   |                    |  |             |   |                            |  |                           |       
|Minority interest
    attributable to continuing operations |                                         |                                |                        |   |                    |  |             |   |                            |  |                           |       
|                                                            |                                         |                                |                        |   |                    |  |             |   |                            |  |                           |       
|Income from continuing
        operations                   |                                         |                                |                        |   |                    |  |             |   |                            |  |                           |       
|Income
          from discontinued operations (c)           |                                         |                                |                        |   |                    |  |             |   |                            |  |                           |       
|                                                            |                                         |                                |                        |   |                    |  |             |   |                            |  |                           |       
|Net Income                                                  |                                         |                                |                        |   |                    |  |             |   |                            |  |                           |       
|                                                            |                                         |                                |                        |   |                    |  |             |   |                            |  |                           |       
|                                                            |                                         |                                |                        |   |                    |  |             |   |                            |  |                           |       

|(a) | — | Represents the operations
        of properties acquired that are not included in the definition of the
    Same Store Property Portfolio.                                                                                                                    
|--- | - | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|(b) | — | Represents certain
        revenue and expenses at the corporate level as well as various intercompany
    costs that are eliminated in consolidation.                                                                                                        
|(c) | — | All properties sold
        during the respective periods meet the criteria for treatment as a discontinued
        operation and have been presented as such
under SFAS No. 144 (“SFAS 144”), Accounting for the Impairment or
Disposal of Long-Lived Assets.

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Revenue

Revenue increased by $44.8 million primarily due to properties that were acquired in 2004 and an increase in other income in 2005 as compared to 2004. Other revenue represents lease termination fees, bankruptcy settlement proceeds, leasing commissions and third-party management fees. Total portfolio other revenue increased by $2.6 million when comparing the six-month period ended June 30, 2005 to the comparable period in 2004 primarily due to a $3.7 million net termination fee associated with a single tenant termination in 2005 offset by the settlement of litigation totaling $1.0 million plus accrued interest on the Partnerships security deposit in 2004.


Operating Expenses and Real Estate Taxes

Property operating expenses increased by $15.5 million in 2005 primarily due to the properties acquired in the latter half of 2004 and higher expense levels in 2005 on the Same Store Properties. Property operating expenses for the Same Store Properties increased by $1.6 million in 2005 over 2004 due to increases in snow removal costs, utility expenses and repairs and maintenance expenses at various Same Store Properties.


Real estate taxes increased by $5.6 million primarily due to the properties acquired in the latter half of 2004. Real estate taxes for the Same Store Properties increased by $0.8 million in 2005 as a result of higher tax rates and property assessments.


Depreciation and Amortization Expense

Depreciation and amortization expense increased by $23.8 million in 2005 primarily due to the properties acquired in the second half of 2004 and amortization from additional tenant improvements and leasing commissions incurred over the year.


Administrative Expenses

Administrative expenses increased by $1.7 million in 2005 primarily due to the cost of additional personnel hired as part of the TRC acquisition in September 2004, higher compensation and benefits costs for employees and increased spending on process and technology improvements.


Interest Expense

Interest expense increased by $11.6 million in 2005 primarily due to increased debt from the Partnerships fixed rate unsecured notes issued in the fourth quarter of 2004 offset by a decrease in the effective borrowing cost under the Partnerships unsecured credit facilities, including the effect of interest rate hedges during 2004.


Equity in Income of Real Estate Ventures

Equity in income of Real Estate Ventures increased by $0.6 million in 2005 as a result of increased net income from the Real Estate Ventures.


Net Gain on Sales of Interests in Real Estate

During the six-month period ended June 30, 2004, the Partnership sold three office properties containing 141,000 net rentable square feet, one industrial property containing 45,000 net rentable square feet and one parcel of land containing 5.3 acres for an aggregate of $24.3 million, realizing a net gain of $1.4 million ($0.2 million of the net gain is presented in income from discontinued operations). There were no property sales during the six-month period ended June 30, 2005.


Minority Interest

Minority interest from continuing operations represents the income attributable to the interest of the outside joint venture partners in the net income (loss) of the Partnerships two consolidated real estate ventures. These two real estate ventures were consolidated effective March 31, 2004.


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LIQUIDITY AND CAPITAL RESOURCES

General

Our principal liquidity needs for the next twelve months are as follows:


| | • | fund normal
    recurring expenses,                                                                                             
| | - | --------------------------------------------------------------------------------------------------------------------------------
| | • | meet debt
    service requirements,                                                                                             
| | • | fund capital
    expenditures, including capital and tenant improvements and leasing costs,                                     
| | • | fund current
        development costs, including continued development of Cira Centre in
    University City, Philadelphia, and
| | • | fund distributions
    declared by our Board of Trustees.                                                                       

We believe that these needs will be satisfied using cash flows generated by operations and provided by financing activities. Rental revenue, recovery income from tenants, and other income from operations are our principal sources of cash used to pay operating expenses, debt service, recurring capital expenditures and the minimum distribution required to maintain the Companys REIT qualification. We seek to increase cash flows from our existing properties by maintaining quality standards for our properties that promote high occupancy rates and permit increases in rental rates while reducing tenant turnover and controlling operating expenses. Our sources of revenue also include third-party fees generated by our property management, leasing, development and construction businesses. Consequently, we believe our revenue, together with proceeds from financing activities, will continue to provide the necessary funds for our
 short-term liquidity needs. However, material changes in these factors may adversely affect our net cash flows. Such changes, in turn, would adversely affect our ability to fund distributions, debt service payments and tenant improvements. In addition, a material adverse change in our cash provided by operations may affect the financial performance covenants under our unsecured Credit Facility and unsecured notes.


Our principal liquidity needs for periods beyond twelve months are for the costs of developments, redevelopments, property acquisitions, scheduled debt maturities, major renovations, expansions and other non-recurring capital improvements. We draw on multiple financing sources to fund our long-term capital needs. Our Credit Facility is utilized for general business purposes, including the acquisition, development and redevelopment of properties and the repayment of other debt. In the fourth quarter of 2004 we completed two offerings of unsecured notes and expect to utilize the debt market and common equity as capital sources for other long-term capital needs.


Cash Flows

The following summary discussion of our cash flows is based on the consolidated statement of cash flows and is not meant to be an all-inclusive discussion of the changes in our cash flows for the periods presented.


As of June 30, 2005 and December 31, 2004, we maintained cash and cash equivalents of $9.3 million and $15.3 million, respectively, a decrease of $6.0 million. This increase was the result of the following changes in cash flow from our various activities for the six-month periods ended June 30:


|Activity       |   | 2005     |   |   | 2004    |  
|-------------- | - | -------- | - | - | ------- | -
|               |   |          |   |   |         |  
|Operating      | $ | 62,505   |   | $ | 73,342  |  
|Investing      |   | (126,337 | ) |   | (31,103 | )
|Financing      |   | 57,807   |   |   | (40,246 | )
|               |   |          |   |   |         |  
|Net cash flows | $ | (6,025   | ) | $ | 1,993   |  
|               |   |          |   |   |         |  

Our principle source of cash flows is from the operations of our Properties. Our decreased cash flow from operating activities in the six-months ended June 30, 2005 compared to the same period in 2004 is primarily attributable to reductions in other assets which generated positive cash flow of $11.8 million in the 2004 period, the timing of real estate tax and other payments which generated higher cash outflows in the 2005 period, and greater net cash inflows from a larger asset base in 2005 as compared to 2004.


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Decreased cash flows from investing activities (comparing the first half of 2005 to the first half of 2004) were attributable to our acquisition of properties and developable land parcels in 2005 ($38.9 million), the absence of dispositions during 2005 ($20.0 million in 2004) and construction costs related to our Cira Centre development project and various other capital and tenant improvement projects (contributing to a $35.7 million increase in 2005).


Increased cash flows from financing activities was comprised of additional borrowings on our Credit Facility in 2005 ($113 million) to fund acquisitions and development activities compared to the 2004 period in which equity issuances and the related proceeds were used to reduce outstanding indebtedness and to fund the repurchase of preferred units in our operating partnership.


Capitalization

Indebtedness

As of June 30, 2005, we had approximately $1.4 billion of outstanding indebtedness. The table below summarizes our mortgage notes payable, our unsecured notes and our revolving credit facility at June 30, 2005 and December 31, 2004:


|                                              |                            | June 30,  |   |   | December
    31, |  
|--------------------------------------------- | -------------------------- | --------- | - | - | ---------------- | -
|2005                                          | 2004                      
|                                              |                            |           |  
|                                              | (dollars
    in thousands)
|Balance:                                      |                            |           |   |   |                  |  
|Fixed rate                                    | $                          | 1,128,581 |   | $ | 1,133,513        |  
|Variable rate                                 |                            | 281,142   |   |   | 173,156          |  
|                                              |                            |           |   |   |                  |  
|Total                                         | $                          | 1,409,723 |   | $ | 1,306,669        |  
|                                              |                            |           |   |   |                  |  
|                                              |                            |           |   |   |                  |  
|Percent of Total Debt:                        |                            |           |   |   |                  |  
|Fixed rate                                    |                            | 80        | % |   | 87               | %
|Variable rate                                 |                            | 20        | % |   | 13               | %
|                                              |                            |           |   |   |                  |  
|Total                                         |                            | 100       | % |   | 100              | %
|                                              |                            |           |   |   |                  |  
|                                              |                            |           |   |   |                  |  
|Weighted-average interest rate at period end: |                            |           |   |   |                  |  
|Fixed rate                                    |                            | 5.9       | % |   | 5.9              | %
|Variable rate                                 |                            | 4.0       | % |   | 3.5              | %
|                                              |                            |           |   |   |                  |  
|Total                                         |                            | 5.6       | % |   | 5.6              | %
|                                              |                            |           |   |   |                  |  

The variable rate debt shown above generally bears interest based on various spreads over LIBOR (the term of which is selected by the Partnership).


The Partnership utilizes credit facility borrowings for general business purposes, including the acquisition, development and redevelopment of properties and the repayment of other debt. The Partnership maintains a $450 million unsecured credit facility (the Credit Facility)
that matures in May 2007, subject to a one year extension option upon payment
of a fee and absence any defaults at the time of the extension. Borrowings under
the Credit Facility generally bear interest at LIBOR plus a spread over LIBOR
ranging from 0.65% to 1.20% based on the Partnerships unsecured senior debt rating. The Partnership has an option to increase its maximum borrowings under the Credit Facility to $600 million subject to the absence of any defaults and our ability to acquire additional commitments from our existing lenders or new lenders. The Credit Facility contains various financial and non-financial covenants. As
 of June 30, 2005, the Partnership was in compliance with all such covenants.


The Partnership expects to renegotiate its Credit Facility prior to maturity or extend its term.


The Partnership
utilizes unsecured notes as a long-term financing alternative. The indentures
and note purchase agreements contain various financial restrictions and requirements,
including (1) a leverage ratio not to exceed 60%, (2) a secured debt leverage
ratio not to exceed 40%, (3) a debt service coverage ratio of greater than 1.5
to 1.0, and (4)


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an unencumbered asset value of not less than 150% of unsecured debt. In addition, the note purchase agreement relating to the 2008 Notes contains covenants that are similar to the above covenants. At June 30, 2005, the Partnership was in compliance with each of these financial restrictions and requirements.

The Partnership has mortgages, loans payable and other obligations which consist of various loans collateralized by certain of the Partnerships Properties. Payments on mortgages, loans payable and other obligations are generally due in monthly installments of principal and interest, or interest only.


The Partnership intends to refinance its mortgage indebtedness as they become due primarily through the use of unsecured debt or equity.


Partners Equity

On June 15, 2005, the Partnership declared a distribution of $0.44 per Common Partnership Unit, totaling $24.7 million, which was paid on July 15, 2005 to unit holders of record as of July 6, 2005. On this same date, the Partnership declared a $0.44 per unit cash distribution to holders of Class A Units totaling $0.9 million.


On June 15, 2005, the Partnership declared distributions to holders of its Series D Preferred Mirror Units and Series E Preferred Mirror Units to holders of record on June 30, 2005. These units are currently entitled to a cumulative preferential return of 7.50% and 7.375%, respectively. Distributions paid on July 15, 2005 to holders of Series D Preferred Mirror Units and Series E Preferred Mirror Units totaled $0.9 million and $1.1 million, respectively.


The Board of Trustees of the Company approved a share repurchase program authorizing it to repurchase up to of its outstanding Common Shares. Through June 30, 2005, the Company had repurchased 3.2 million of its Common Shares at an average price of $17.75 per share. Concurrent with share repurchases by the Company, the Partnership has repurchased 3.2 million of Partnership Units from the Company at an average price of $17.75 per unit. Under the share repurchase program, the Company has the authority to repurchase an additional 762,000 shares, and, in exchange for the funds required to repurchase these shares, the Partnership will repurchase an equivalent number of Common Partnership Units from the Company. No time limit has been placed on the duration of the share repurchase program.


Shelf Registration Statement

The Company and Partnership have an effective shelf registration statement on Form S-3 filed with the Securities and Exchange Commission that registered $750 million in common shares, preferred shares, depositary shares, warrants, and $750 million in debt securities. As of June 30, 2005, the registration statement had the entire $750 million of capacity for future issuances of common shares, preferred shares, depositary shares and warrants and had the entire $750 million of capacity for future issuances of debt securities.


Short- and Long-Term Liquidity

The Partnership believes that its cash flow from operations is adequate to fund its short-term liquidity requirements. Cash flow from operations is generated primarily from rental revenues and operating expense reimbursements from tenants and management services income from providing services to third parties. The Partnership intends to use these funds to meet short-term liquidity needs, which are to fund operating expenses, debt service requirements, recurring capital expenditures, tenant allowances, leasing commissions and the minimum distributions required to maintain the Companys REIT qualification under the Internal Revenue Code.


The Partnership expects to meet its long-term liquidity requirements, such as for property acquisitions, development, investments in real estate ventures, scheduled debt maturities, major renovations, expansions and other significant capital improvements, through cash from operations, borrowings under its Credit Facility, other long-term secured and unsecured indebtedness, the issuance of equity securities and the proceeds from the disposition of selected assets.


Inflation

A majority of the
Partnerships leases provide for separate escalations of real estate taxes
and operating expenses either on a triple net basis or over a base amount. In
addition, many of the office leases provide for fixed base rent increases.


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The Partnership believes that inflationary increases in expenses will be significantly offset by expense reimbursement and contractual rent increases.

Commitments and Contingencies

The following table outlines the timing of payment requirements related to the Partnerships contractual commitments as of June 30, 2005:


|                           | Payments by Period (in thousands) |          
|-------------------------- | --------------------------------- | ---------
|                           |                                   |          
|                           |                                   |          
|                           | Total                             |          
|                           |                                   |          
|Mortgage notes payable (a) | $                                 | 501,429  
|Revolving credit facility  |                                   | 265,000  
|Unsecured debt (a)         |                                   | 638,000  
|Ground leases (b)          |                                   | 259,990  
|Other liabilities          |                                   | 1,525    
|                           |                                   |          
|                           | $                                 | 1,665,944
|                           |                                   |          

|   
|---
|(a)
|(b)

The Partnership intends to refinance its mortgage notes payable as they become due or repay those that are secured by properties being sold. The Partnership expects to renegotiate its Credit Facility prior to maturity or extend its term.


We are a party to an agreement with one of our Trustees (Donald E. Axinn) in which we agreed to fund $5.5 million in September 2010 to acquire a fifty percent interest in an approximately 141,725 square foot office building located at 101 Paragon Drive, Montvale, New Jersey. Our agreement provides for proceeds of our $5.5 million payment to be used (together with funds provided by Mr. Axinn) to repay in full the third party loan that encumbers this property.


As part of our purchase of the TRC Properties in September 2004, the Partnership agreed to issue to the sellers up to a maximum of $9.7 million of Class A Units of the Partnership if certain of the acquired properties achieve at least 95% occupancy prior to September 21, 2007. At June 30, 2005, the maximum amount payable under this arrangement was $6.7 million.


As part of the TRC acquisition, we acquired our interest in Two Logan Square, a 696,477 square foot office building in Philadelphia, primarily through a second and third mortgage secured by this property. We currently do not expect to take title to Two Logan Square until, at the earliest, September 2019. In the event that we take title to Two Logan Square upon a foreclosure of our mortgage, we have agreed to make a payment to an unaffiliated third party with a residual interest in the fee owner of this property. The amount of the payment would be $0.6 million if we must pay a state and local transfer upon taking title, and $2.9 million if no transfer tax is payable upon the transfer.


In our acquisition of the TRC Properties and several of our other acquisitions, we agreed not to sell the acquired properties. In the case of the TRC Properties, we agreed not to sell the acquired properties for periods ranging from three to 15 years from the acquisition date as follows: 201 Radnor Financial Center, 555 Radnor Financial Center and 300 Delaware Avenue (three years); One Rodney Square and 130/150/170 Radnor Financial Center (10 years); and One Logan Square, Two Logan Square and Radnor Corporate Center (15 years). We also own 14 properties that aggregate 1.0 million square feet and have agreed not to sell these properties for periods that expire through 2008. These agreements generally provide that we may dispose of the subject Properties only in transactions that qualify as tax-free exchanges under Section 1031 of the Code or in other tax deferred transactions. In the event that we sell any of the properties
 within the applicable restricted period in non-exempt transactions, we have agreed to pay significant tax liabilities that would be incurred by the parties who sold us the applicable property.


We invest in our Properties and regularly incur capital expenditures in the ordinary course to maintain the Properties. We believe that such expenditures enhance the competitiveness of the Properties. We also enter into construction,


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Item 3.Quantitative and Qualitative Disclosures about Market Risk

Market risk is the exposure to loss resulting from changes in interest rates, commodity prices and equity prices. In pursuing its business plan, the primary market risk to which the Partnership is exposed is interest rate risk. Changes in the general level of interest rates prevailing in the financial markets may affect the spread between the Partnerships yield on invested assets and cost of funds and, in turn, the Partnerships ability to make distributions or payments to its shareholders. While the Partnership has not experienced any significant credit losses, in the event of a significant rising interest rate environment and/or economic downturn, defaults could increase and result in losses to the Partnership which adversely affect its operating results and liquidity.


There have been no material changes in Quantitative and Qualitative disclosures in 2004 from the disclosures included in the Companys Annual Report on Form 10-K for the year ended December 31, 2004. Reference is made to Item 7 included in the Companys Annual Report on Form 10-K for the year ended December 31, 2004 and the caption Liquidity and Capital Resources under Item 2 of this Quarterly Report on Form 10-Q.


Item 4. Controls and Procedures

| | (a) | Evaluation of disclosure controls and procedures.The Companys Chief Executive Officer and its Chief Financial Officer, after evaluating the effectiveness of the Partnerships disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934) as of the end of the period covered by this quarterly report, have concluded that the Partnerships disclosure controls and procedures are effective to ensure that information required to be disclosed by the Partnership in the reports that it files under the Securities Exchange Act of 1934 is recorded, processed, summarized and reported within the time periods specified in the rules and forms of the Securities and Exchange Commission.
| | --- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
| |     |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
| | (b) | Changes in internal controls over financial reporting.There was no change in the Partnerships internal control over financial reporting that occurred during the period covered by this quarterly report that has materially affected, or is reasonably likely to materially affect, the Partnerships internal control over financial reporting.                                                                                                                                                                                                                                                                                                                                                                                                               

Part II. OTHER
INFORMATION

Item 1.Legal Proceedings

Not applicable.

Item 2.Unregistered Sales of Equity Securities and Use of Proceeds

The following table summarizes the unit repurchases during the three-month period ended June 30, 2005:


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|                     |                |                  |                  |   |  | Total |  |         | 
|-------------------- | -------------- | ---------------- | ---------------- | - |  | ----- |  | ------- | 
|Number of            | Maximum       
|Units                | Number of     
|Total                | Purchased as   | Units that May  
|Number
       of     | Average        | Part of Publicly | Yet Be Purchased
|Units                | Price Paid Per | Announced Plans  | Under the Plans 
|Purchased
       (A) | Unit           | or Programs      | or Programs     
|                     |                |                  |                  |   |  |       |  |         | 
|2005:                |                |                  |                  |   |  |       |  |         | 
|April                | —              |                  | $                | — |  | —     |  | 762,000 | 
|May                  | —              |                  | $                | — |  | —     |  | 762,000 | 
|June                 | —              |                  | $                | — |  | —     |  | 762,000 | 
|                     |                |                  |                  |   |  |       |  |         | 
|Total                | —              |                  | $                | — |  | —     |  | 762,000 | 
|                     |                |                  |                  |   |  |       |  |         | 
|                     |                |                  |                  |   |  |       |  |         | 

|(A) | Represent Common Partnership Units that relate to
        Common Shares cancelled by the Company upon vesting of restricted Common
        Shares previously awarded to Company employees, in satisfaction of tax
    withholding obligations.
|--- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Item 3.Defaults
Upon Senior Securities

Not applicable.


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

None.


Item 5.Other Information

Not applicable.


Item 6.Exhibits

|(a)  | Exhibits                                                                                                                          
|---- | ----------------------------------------------------------------------------------------------------------------------------------
|     |                                                                                                                                   
|12.1 | Statement
        re
Computation of Ratios                                                                                        
|31.1 | Certification
    Pursuant to 13a-14 under the Securities Exchange Act of 1934                                                    
|31.2 | Certification
    Pursuant to 13a-14 under the Securities Exchange Act of 1934                                                    
|32.1 | Certification
        Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906
    of the Sarbanes-Oxley Act of 2002
|32.2 | Certification
        Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906
    of the Sarbanes-Oxley Act of 2002

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SIGNATURES OF REGISTRANT

Pursuant to the requirements 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.


BRANDYWINE OPERATING PARTNERSHIP, L.P.

By: Brandywine Realty Trust, its General Partner

|Date: August
    12, 2005 | By:/s/ Gerard H. Sweeney                                              
|------------------------- | ----------------------------------------------------------------------
|                          |                                                                       
|                          | Gerard H. Sweeney, President and Chief Executive Officer              
|                          | (Principal Executive Officer)                                         
|                          |                                                                       
|                          |                                                                       
|Date: August
    12, 2005 | By:/s/ Christopher P. Marr                                            
|                          |                                                                       
|                          | Christopher P. Marr, Senior Vice President and Chief Financial Officer
|                          | (Principal Financial Officer)                                         
|                          |                                                                       
|                          |                                                                       
|Date: August
    12, 2005 | By:/s/ Timothy M. Martin                                              
|                          |                                                                       
|                          | Timothy M. Martin, Vice President-Finance and Chief Accounting Officer
|                          | (Principal Accounting Officer)                                        

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