<PAGE>
                                                                    Exhibit 10.1

                                   ----------

           THIRD AMENDED AND RESTATED AGREEMENT OF LIMITED PARTNERSHIP

                                       OF

                            CARRAMERICA REALTY, L.P.

                                   ----------

                                                                   July 31, 2002

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                                TABLE OF CONTENTS

<TABLE>
<S>                                                                                         <C>
ARTICLE I  DEFINED TERMS.................................................................... 1
ARTICLE II ORGANIZATIONAL MATTERS...........................................................11
   Section 2.1 Organization.................................................................11
   Section 2.2 Name.........................................................................11
   Section 2.3 Registered Office and Agent; Principal Office................................12
   Section 2.4 Term.........................................................................12
ARTICLE III PURPOSE.........................................................................12
   Section 3.1 Purpose and Business.........................................................12
   Section 3.2 Powers.......................................................................13
ARTICLE IV CAPITAL CONTRIBUTIONS; ISSUANCES OF PARTNERSHIP INTERESTS........................13
   Section 4.1 Capital Contributions of the Partners........................................13
   Section 4.2 Issuances of Additional Partnership Interests................................14
   Section 4.3 No Preemptive Rights.........................................................15
ARTICLE V DISTRIBUTIONS.....................................................................15
   Section 5.1 Requirement and Characterization of Distributions............................15
   Section 5.2 Amounts Withheld.............................................................16
   Section 5.3 Distributions Upon Liquidation...............................................16
ARTICLE VI ALLOCATIONS......................................................................16
   Section 6.1 Allocations For Capital Account Purposes.....................................16
ARTICLE VII MANAGEMENT AND OPERATIONS OF BUSINESS...........................................17
   Section 7.1 Management...................................................................17
   Section 7.2 Certificate of Limited Partnership...........................................20
   Section 7.3 Title to Partnership Assets..................................................21
   Section 7.4 Reimbursement of the General Partner.........................................21
   Section 7.5 Outside Activities of the General Partner and its Affiliates.................22
   Section 7.6 Transactions with Affiliates.................................................23
   Section 7.7 Indemnification..............................................................23
   Section 7.8 Liability of the General Partner.............................................25
   Section 7.9 Other Matters Concerning the General Partner.................................26
   Section 7.10 Reliance by Third Parties...................................................26
ARTICLE VIII RIGHTS AND OBLIGATIONS OF LIMITED PARTNERS.....................................27
   Section 8.1 Limitation of Liability......................................................27
   Section 8.2 Management of Business.......................................................27
   Section 8.3 Outside Activities of Limited Partners.......................................27
   Section 8.4 Return of Capital............................................................28
   Section 8.5 Rights of Limited Partners Relating to the Partnership.......................28
   Section 8.6 Redemption Right.............................................................29
ARTICLE IX BOOKS, RECORDS, ACCOUNTING AND REPORTS...........................................31
   Section 9.1 Records and Accounting.......................................................31
   Section 9.2 Fiscal Year..................................................................31
   Section 9.3 Reports......................................................................31
ARTICLE X TAX MATTERS.......................................................................32
</TABLE>

                                       i

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<TABLE>
<S>                                                                                         <C>
   Section 10.1 Preparation of Tax Returns..................................................32
   Section 10.2 Tax Elections...............................................................32
   Section 10.3 Tax Matters Partner.........................................................32
   Section 10.4 Organizational Expenses.....................................................34
   Section 10.5 Withholding.................................................................34
ARTICLE XI TRANSFERS AND WITHDRAWALS........................................................35
   Section 11.1 Transfer....................................................................35
   Section 11.2 General Partner's Rights to Transfer........................................35
   Section 11.3 Limited Partners' Rights to Transfer........................................35
   Section 11.4 Substituted Limited Partners................................................36
   Section 11.5 Assignees...................................................................37
   Section 11.6 General Provisions..........................................................37
ARTICLE XII ADMISSION OF PARTNERS...........................................................38
   Section 12.1 Admission of Successor General Partner......................................38
   Section 12.2 Admission of Additional Limited Partners....................................38
   Section 12.3 Amendment of Agreement and Certificate of Limited Partnership...............39
ARTICLE XIII DISSOLUTION AND LIQUIDATION....................................................39
   Section 13.1 Dissolution.................................................................39
   Section 13.2 Winding Up..................................................................40
   Section 13.3 Compliance with Timing Requirements of Regulations..........................41
   Section 13.4 Deemed Distribution and Recontribution......................................42
   Section 13.5 Rights of Limited Partners..................................................42
   Section 13.6 Notice of Dissolution.......................................................42
   Section 13.7 Cancellation of Certificate of  Limited Partnership.........................42
   Section 13.8 Reasonable Time for Winding Up..............................................43
   Section 13.9 Waiver of Partition.........................................................43
   Section 13.10 Liability of Liquidator....................................................43
ARTICLE XIV AMENDMENT OF PARTNERSHIP AGREEMENT; MEETINGS....................................43
   Section 14.1 Amendments..................................................................43
   Section 14.2 Meetings of the Partners....................................................45
ARTICLE XV GENERAL PROVISIONS...............................................................45
   Section 15.1 Addresses and Notice........................................................45
   Section 15.2 Titles and Captions.........................................................46
   Section 15.3 Pronouns and Plurals........................................................46
   Section 15.4 Further Action..............................................................46
   Section 15.5 Binding Effect..............................................................46
   Section 15.6 Creditors...................................................................46
   Section 15.7 Waiver......................................................................46
   Section 15.8 Counterparts................................................................47
   Section 15.9 Applicable Law..............................................................47
   Section 15.10 Invalidity of Provisions...................................................47
   Section 15.11 Power of Attorney..........................................................47
   Section 15.12 Entire Agreement...........................................................48
   Section 15.13 No Rights as Stockholders..................................................49
   Section 15.14 Rights and Duties of CarrAmerica and Affiliates of the General Partner.....49
</TABLE>

                                       ii

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                                    EXHIBIT A
                              INTENTIONALLY OMITTED

                                    EXHIBIT B
                           CAPITAL ACCOUNT MAINTENANCE

                                    EXHIBIT C
                            SPECIAL ALLOCATION RULES

                                    EXHIBIT D
                              NOTICE OF REDEMPTION

                                    EXHIBIT E
                                  CLASS C UNITS

                                    EXHIBIT F
                                  CLASS D UNITS

                                      iii

<PAGE>

           THIRD AMENDED AND RESTATED AGREEMENT OF LIMITED PARTNERSHIP
                                       OF
                            CARRAMERICA REALTY, L.P.

     THIS THIRD AMENDED AND RESTATED AGREEMENT OF LIMITED PARTNERSHIP, dated as
of July 31, 2002, is entered into by and among CarrAmerica Realty GP Holdings,
Inc., a Delaware corporation and wholly-owned subsidiary of CarrAmerica Realty
Corporation, a Maryland corporation ("CarrAmerica"), as the General Partner of
the Partnership, for itself and on behalf of the Limited Partners of the
Partnership. CarrAmerica is a party to this Agreement solely for purpose of
Sections 7.4, 7.5, 7.7, 7.8, 8.6, 11.2, 15.13 and 15.14.

     WHEREAS, pursuant to Sections 14.1.A and 14.2.B of the Second Amended and
Restated Agreement of Limited Partnership of the Partnership (the "Agreement of
Limited Partnership"), the General Partner and holders of a majority of the
Percentage Interests of the Limited Partners, acting by written consent dated as
of July 31, 2002, (i) approved amendments to the Agreement of Limited
Partnership (the "Amendments"), and (ii) approved a restatement of the Agreement
of Limited Partnership, as amended by the Amendments, in its entirety.

     NOW, THEREFORE, in consideration of the mutual covenants set forth herein,
and for other good and valuable consideration, the receipt and sufficiency of
which hereby are acknowledged, the parties hereto agree to continue the
Partnership as a limited partnership under the Act, as follows:

                                    ARTICLE I
                                  DEFINED TERMS

          The following definitions shall be for all purposes, unless otherwise
clearly indicated to the contrary, applied to the terms used in this Agreement.

          "Act" means the Delaware Revised Uniform Limited Partnership Act, as
it may be amended from time to time, and any successor to such statute.

          "Additional Limited Partner" means a Person admitted to the
Partnership as a Limited Partner pursuant to Section 4.2 hereof and who is shown
as such on the books and records of the Partnership.

          "Adjusted Capital Account" means the Capital Account maintained for
each Partner as of the end of each Partnership Year (i) increased by any amounts
which such Partner is obligated to restore pursuant to any provision of this
Agreement or is deemed to be obligated to restore pursuant to the penultimate
sentences of Regulations Sections 1.704-2(g)(1) and 1.704-2(i)(5) and (ii)
decreased by the items described in Regulations Sections
1.704-1(b)(2)(ii)(d)(4), 1.704-1(b)(2)(ii)(d)(5), and 1.704-1(b)(2)(ii)(d)(6).
The foregoing definition of Adjusted Capital Account is intended to comply with
the provisions of Regulations Section 1.704-1(b)(2)(ii)(d) and shall be
interpreted consistently therewith.

<PAGE>

          "Adjusted Capital Account Deficit" means, with respect to any Partner,
the deficit balance, if any, in such Partner's Adjusted Capital Account as of
the end of the relevant Partnership Year

          "Adjusted Property" means any property the Carrying Value of which has
been adjusted pursuant to Exhibit B hereof. Once an Adjusted Property is deemed
distributed by, and recontributed to, the Partnership for federal income tax
purposes upon a termination thereof pursuant to Section 708 of the Code, such
property shall thereafter constitute a Contributed Property until the Carrying
Value of such property is further adjusted pursuant to Exhibit B hereof.

          "Affiliate" means, with respect to any Person, (i) any Person directly
or indirectly controlling, controlled by or under common control with such
Person, (ii) any Person owning or controlling ten percent (10%) or more of the
outstanding voting interests of such Person, (iii) any Person of which such
Person owns or controls ten percent (10%) or more of the voting interests, or
(iv) any officer, director, general partner or trustee of such Person or any
Person referred to in clauses (i), (ii), and (iii) above. For purposes of this
definition, "control," when used with respect to any Person, means the power to
direct the management and policies of such Person, directly or indirectly,
whether through the ownership of voting securities, by contract or otherwise,
and the terms "controlling" and "controlled" have meanings correlative to the
foregoing.

          "Agreed Value" means (i) in the case of any Contributed Property as of
the time of its contribution to the Partnership, the 704(c) Value of such
property, reduced by any liabilities either assumed by the Partnership upon such
contribution or to which such property is subject when contributed, and (ii) in
the case of any property distributed to a Partner by the Partnership, the
Partnership's Carrying Value of such property at the time such property is
distributed, reduced by any indebtedness either assumed by such Partner upon
such distribution or to which such property is subject at the time of
distribution as determined under Section 752 of the Code and the regulations
thereunder.

          "Agreement" means this Third Amended and Restated Agreement of Limited
Partnership, as it may be amended, supplemented or restated from time to time.

          "Articles of Incorporation" means the Articles of Amendment and
Restatement of Articles of Incorporation of CarrAmerica filed in the State of
Maryland on February 3, 1993, as amended or supplemented from time to time.

          "Assignee" means a Person to whom one or more Partnership Units have
been transferred in a manner permitted under this Agreement, but who has not
become a Substituted Limited Partner, and who has the rights set forth in
Section 11.5.

          "Available Cash" means, with respect to any period for which such
calculation is being made:

          (a) all cash revenues and funds received by the Partnership from
whatever source (excluding the proceeds of any Capital Contribution) plus the
amount of any reduction (including, without limitation, a reduction resulting
because the General

                                     - 2 -

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Partner determines such amounts are no longer necessary) in reserves of the
Partnership, which reserves are referred to in clause (b)(iv) below;

          (b) less the sum of the following (except to the extent made with the
proceeds of any Capital Contribution):

               (i) all interests, principal and other debt payments made during
          such period by the Partnership,

               (ii) all cash expenditures (including capital expenditures) made
          by the Partnership during such period,

               (iii) investments in any entity (including loans made thereto) to
          the extent that such investments are permitted under this Agreement
          and are not otherwise described in clauses (b)(i) or (ii), and

               (iv) the amount of any increase in reserves established during
          such period which the General Partner determines is necessary or
          appropriate in its sole and absolute discretion.

          Notwithstanding the foregoing, Available Cash shall not include any
cash received or reductions in reserves, or take into account any disbursements
made or reserves established, after commencement of the dissolution and
liquidation of the Partnership.

          "Book-Tax Disparities" means, with respect to any item of Contributed
Property or Adjusted Property, as of the date of any determination, the
difference between the Carrying Value of such Contributed Property or Adjusted
Property and the adjusted basis thereof for federal income tax purposes as of
such date. A Partner's share of the Partnership's Book-Tax Disparities in all of
its Contributed Property and Adjusted Property will be reflected by the
difference between such Partner's Capital Account balance as maintained pursuant
to Exhibit B and the hypothetical balance of such Partner's Capital Account
computed as if it had been maintained strictly in accordance with federal income
tax accounting principles.

          "Business Day" means any day except a Saturday, Sunday or other day on
which commercial banks in New York, New York are authorized or required by law
to close.

          "Capital Account" means the Capital Account maintained for a Partner
pursuant to Exhibit B hereof.

          "Capital Contribution" means, with respect to any Partner, any cash,
cash equivalents or the Agreed Value of Contributed Property which such Partner
contributes or is deemed to contribute to the Partnership pursuant to Section
4.1 or 4.2 hereof.

          "CarrAmerica" means CarrAmerica Realty Corporation, a Maryland
corporation, or its successor.

                                     - 3 -

<PAGE>

          "Carrying Value" means (i) with respect to a Contributed Property or
Adjusted Property, the 704(c) Value of such property reduced (but not below
zero) by all Depreciation with respect to such Contributed Property or Adjusted
Property, as the case may be, charged to the Partners' Capital Accounts and (ii)
with respect to any other Partnership property, the adjusted basis of such
property for federal income tax purposes, all as of the time of determination.
The Carrying Value of any property shall be adjusted from time to time in
accordance with Exhibit B hereof, and to reflect changes, additions or other
adjustments to the Carrying Value for dispositions and acquisitions of
Partnership properties, as deemed appropriate by the General Partner.

          "Cash Amount" means an amount of cash per Partnership Unit equal to
the Value on the Valuation Date of the REIT Shares Amount.

          "Certificate" means the Certificate of Limited Partnership relating to
the Partnership filed in the office of the Delaware Secretary of State, as
amended from time to time in accordance with the terms hereof and the Act.

          "Class A Unit" means a Partnership Unit that is specifically
designated by the General Partner as being a Class A Unit.

          "Class B Unit" means a Partnership Unit that is specifically
designated by the General Partner as being a Class B Unit.

          "Class C Unit" means a Partnership Unit with such designations,
preferences, rights, powers and duties as are described in Exhibit E hereof and
that is specifically designated by the General Partner as being a Class C Unit.

          "Class D Unit" means a Partnership Unit with such designations,
preferences, rights, powers and duties as are described in Exhibit F hereof and
that is specifically designated by the General Partner as being a Class D Unit.

          "Class E Unit" means a Partnership Unit with such designations,
preferences, rights, powers and duties as are described in Section 4.2.F hereof
and that is specifically designated by the General Partner as being a Class E
Unit.

          "Code" means the Internal Revenue Code of 1986, as amended and in
effect from time to time, as interpreted by the applicable regulations
thereunder. Any reference herein to a specific section or sections of the Code
shall be deemed to include a reference to any corresponding provision of future
law.

          "Consent" means the consent or approval of a proposed action by a
Partner given in accordance with Section 14.2 hereof.

          "Contributed Property" means each property or other asset contributed
to the Partnership, in such form as may be permitted by the Act, but excluding
cash contributed or deemed contributed to the Partnership (or deemed contributed
to the Partnership on termination and reconstitution thereof pursuant to Section
708 of the Code). Once the Carrying Value of a Contributed Property is adjusted
pursuant to Exhibit B hereof, such

                                     - 4 -

<PAGE>

property shall no longer constitute a Contributed Property for purposes of
Exhibit B hereof, but shall be deemed an Adjusted Property for such purposes.

          "Conversion Factor" means 1.0, provided that in the event that
CarrAmerica (i) declares or pays a dividend on its outstanding REIT Shares in
REIT Shares or makes a distribution to all holders of its outstanding REIT
Shares in REIT Shares, without receiving consideration for such additional REIT
Shares, (ii) subdivides its outstanding REIT Shares, without a corresponding
action taken with respect to the Partnership Units, or (iii) combines its
outstanding REIT Shares into a smaller number of REIT Shares, the Conversion
Factor shall be adjusted by multiplying the Conversion Factor by a fraction, the
numerator of which shall be the number of REIT Shares issued and outstanding on
the record date for such dividend, distribution, subdivision or combination
(assuming for such purposes that such dividend, distribution, subdivision or
combination has occurred as of such time), and the denominator of which shall be
the actual number of REIT Shares (determined without the above assumption)
issued and outstanding on the record date for such dividend, distribution,
subdivision or combination. Any adjustment to the Conversion Factor shall become
effective immediately after the effective date of such event retroactive to the
record date, if any, for such event; it being intended that (i) adjustments to
the Conversion Factor are to be made in order to avoid unintended dilution or
anti-dilution as a result of transactions of the type described above, and (ii)
if a Specified Redemption Date shall fall between the record date and the
effective date of any event of the type described above, that the Conversion
Factor applicable to such redemption shall be adjusted to take into account such
event.

          "Depreciation" means, for each fiscal year, an amount equal to the
federal income tax depreciation, amortization, or other cost recovery deduction
allowable with respect to an asset for such year, except that if the Carrying
Value of an asset differs from its adjusted basis for federal income tax
purposes at the beginning of such year or other period, Depreciation shall be an
amount which bears the same ratio to such beginning Carrying Value as the
federal income tax depreciation, amortization, or other cost recovery deduction
for such year bears to such beginning adjusted tax basis; provided, however,
that if the federal income tax depreciation, amortization, or other cost
recovery deduction for such year is zero, Depreciation shall be determined with
reference to such beginning Carrying Value using any reasonable method selected
by the General Partner.

          "Distribution Period" means any calendar quarter or shorter period
with respect to which a distribution of Available Cash is to be made to the
Partners by the Partnership.

          "Exchange Act" means the Securities Exchange Act of 1934, as amended.

          "General Partner" means GP Holdings or its successors as general
partner of the Partnership.

          "General Partner Interest" or "General Partnership Interest" means a
Partnership Interest held by the General Partner that is a general partner
interest. A General Partner Interest or General Partnership Interest may be
expressed as a number of Partnership Units.

                                     - 5 -

<PAGE>

          "GP Holdings" means CarrAmerica Realty GP Holdings, Inc., a Delaware
corporation, or its successor.

          "IRS" means the Internal Revenue Service, which administers the
internal revenue laws of the United States.

          "Immediate Family" means, with respect to any natural Person, such
natural Person's spouse, parents, descendants, nephews, nieces, brothers, and
sisters.

          "Incapacity" or "Incapacitated" means, (i) as to any individual
Partner, death, total physical disability or entry by a court of competent
jurisdiction adjudicating such Partner incompetent to manage his or her Person
or estate, (ii) as to any corporation which is a Partner, the filing of a
certificate of dissolution, or its equivalent, for the corporation or the
revocation of its charter, (iii) as to any partnership which is a Partner, the
dissolution and commencement of winding up of the partnership, (iv) as to any
estate which is a Partner, the distribution by the fiduciary of the estate's
entire interest in the Partnership, (v) as to any trustee of a trust which is a
Partner, the termination of the trust (but not the substitution of a new
trustee), or (vi) as to any Partner, the bankruptcy of such Partner. For
purposes of this definition, bankruptcy of a Partner shall be deemed to have
occurred when (a) the Partner commences a voluntary proceeding seeking
liquidation, reorganization or other relief under any bankruptcy, insolvency or
other similar law now or hereafter in effect, (b) the Partner is adjudged as
bankrupt or insolvent, or a final and nonappealable order for relief under any
bankruptcy, insolvency or similar law now or hereafter in effect has been
entered against the Partner, (c) the Partner executes and delivers a general
assignment for the benefit of the Partner's creditors, (d) the Partner files an
answer or other pleading admitting or failing to contest the material
allegations of a petition filed against the Partner in any proceeding of the
nature described in clause (b) above, (e) the Partner seeks, consents to or
acquiesces in the appointment of a trustee, receiver or liquidator for the
Partner or for all or any substantial part of the Partner's properties, (f) any
proceeding seeking liquidation, reorganization or other relief under any
bankruptcy, insolvency or other similar law now or hereafter in effect has not
been dismissed within one hundred twenty (120) days after the commencement
thereof, (g) the appointment without the Partner's consent or acquiescence of a
trustee, receiver of liquidator has not been vacated or stayed within ninety
(90) days of such appointment, or (h) an appointment referred to in clause (g)
is not vacated within ninety (90) days after the expiration of any such stay.

          "Indemnitee" means (i) any Person made a party to a proceeding by
reason of his status as (A) the General Partner or an Affiliate of the General
Partner (including, without limitation, CarrAmerica and LP Holdings), (B) a
Limited Partner or (C) a director or officer of the Partnership, the General
Partner or an Affiliate of the General Partner and (ii) such other Persons
(including Affiliates of the General Partner or the Partnership) as the General
Partner may designate from time to time (whether before or after the event
giving rise to potential liability), in its sole and absolute discretion.

          "Limited Partner" means LP Holdings and any other Person named as a
Limited Partner in the Partner Register, as such Partner Register may be amended
from

                                     - 6 -

<PAGE>

time to time, or any Substituted Limited Partner or Additional Limited Partner,
in such Person's capacity as a Limited Partner in the Partnership.

          "Limited Partner Interest" or "Limited Partnership Interest" means a
Partnership Interest of a Limited Partner in the Partnership representing a
fractional part of the Partnership Interests of all Limited Partners and
includes any and all benefits to which the holder of such a Partnership Interest
may be entitled as provided in this Agreement, together with all obligations of
such Person to comply with the terms and provisions of this Agreement. A Limited
Partner Interest or Limited Partnership Interest may be expressed as a number of
Partnership Units.

          "Liquidator" has the meaning set forth in Section 13.2.

          "LP Holdings" means CarrAmerica Realty LP Holdings, Inc., a Delaware
corporation, or its successor.

          "Net Income" means, for any taxable period, the excess, if any, of the
Partnership's items of income and gain for such taxable period over the
Partnership's items of loss and deduction for such taxable period. The items
included in the calculation of Net Income shall be determined in accordance with
Exhibit B. Once an item of income, gain, loss or deduction that has been
included in the initial computation of Net Income is subjected to the special
allocation rules in Exhibit C, Net Income or the resulting Net Loss, whichever
the case may be, shall be recomputed without regard to such item.

          "Net Loss" means, for any taxable period, the excess, if any, of the
Partnership's items of loss and deduction for such taxable period over the
Partnership's items of income and gain for such taxable period. The items
included in the calculation of Net Loss shall be determined in accordance with
Exhibit B. Once an item of income, gain, loss or deduction that has been
included in the initial computation of Net Loss is subjected to the special
allocation rules in Exhibit C, Net Loss or the resulting Net Income, whichever
the case may be, shall be recomputed without regard to such item.

          "New Securities" has the meaning set forth in Section 7.5.B.

          "Nonrecourse Built-in Gain" means, with respect to any Contributed
Properties or Adjusted Properties that are subject to a mortgage or negative
pledge securing a Nonrecourse Liability, the amount of any taxable gain that
would be allocated to the Partners pursuant to Section 2.B of Exhibit C if such
properties were disposed of in a taxable transaction in full satisfaction of
such liabilities and for no other consideration.

          "Nonrecourse Deductions" has the meaning set forth in Regulations
Section 1.704-2(b)(1), and the amount of Nonrecourse Deductions for a
Partnership Year shall be determined in accordance with the rules of Regulations
Section 1.704-2(c).

          "Nonrecourse Liability" has the meaning set forth in Regulations
Section 1.752-1(a)(2).

          "Notice of Redemption" means the Notice of Redemption substantially in
the form of Exhibit D to this Agreement.

                                     - 7 -

<PAGE>

          "Partner" means a General Partner or a Limited Partner, and "Partners"
means the General Partner and the Limited Partners.

          "Partner Minimum Gain" means an amount, with respect to each Partner
Nonrecourse Debt, equal to the Partnership Minimum Gain that would result if
such Partner Nonrecourse Debt were treated as a Nonrecourse Liability,
determined in accordance with Regulations Section 1.704-2(i)(3).

          "Partner Nonrecourse Debt" has the meaning set forth in Regulations
Section 1.704-2(b)(4).

          "Partner Nonrecourse Deductions" has the meaning set forth in
Regulations Section 1.704-2(i)(2), and the Amount of Partner Nonrecourse
Deductions with respect to a Partner Nonrecourse Debt for a Partnership Year
shall be determined in accordance with the rules of Regulations Section
1.704-2(i)(2).

          "Partner Register" means the register of partners maintained by the
General Partner in the books and records of the Partnership, which shall include
the name, address, number of Partnership Units, deemed capital contributions and
Percentage Interest of each Partner.

          "Partnership" means the limited partnership formed under the Act and
continued pursuant to this Agreement, and any successor thereto.

          "Partnership Interest" means an ownership interest in the Partnership
representing a Capital Contribution by either a Limited Partner or the General
Partner and includes any and all benefits to which the holder of such a
Partnership Interest may be entitled as provided in this Agreement, together
with all obligations of such Person to comply with the terms and provisions of
this Agreement. A Partnership Interest may be expressed as a number of
Partnership Units.

          "Partnership Minimum Gain" has the meaning set forth in Regulations
Section 1.704-2(b)(2), and the amount of Partnership Minimum Gain, as well as
any net increase or decrease in Partnership Minimum Gain, for a Partnership Year
shall be determined in accordance with the rules of Regulations Section
1.704-2(d).

          "Partnership Record Date" means the record date established by the
General Partner for the distribution of Available Cash pursuant to Section 5.1
hereof, which record date shall be the same as the record date established by
the General Partner for a distribution to its shareholders of some or all of its
portion of such distribution.

          "Partnership Unit" means a fractional, undivided share of the
Partnership Interests of all Partners issued pursuant to Sections 4.1 and 4.2,
and includes Class A Units, Class B Units, Class C Units, Class D Units and
Class E Units and any other classes or series of Partnership Units established
after the date hereof. The number of Partnership Units outstanding and the
Percentage Interests in the Partnership represented by such Partnership Units
are set forth in the Partner Register, as such Exhibit may be amended from time
to time. The ownership of Partnership Units may be evidenced by a certificate in
a form approved by the General Partner.

                                     - 8 -

<PAGE>

          "Partnership Year" means the fiscal year of the Partnership, which
shall be the calendar year.

          "Percentage Interest" means, as to a Partner, its interest in the
Partnership as determined by dividing the Partnership Units owned by such
Partner by the total number of Partnership Units then outstanding and as
specified in the Partner Register attached hereto, as such Exhibit may be
amended from time to time.

          "Person" means a natural person, partnership (whether general or
limited), trust, estate, association, corporation, limited liability company,
unincorporated organization, custodian, nominee or any other individual entity
in its own or any representative capacity.

          "Recapture Income" means any gain recognized by the Partnership
(computed without regard to any adjustment required by Section 734 or 743 of the
Code) upon the disposition of any property or asset of the Partnership, which
gain is characterized as ordinary income because it represents the recapture of
deductions previously taken with respect to such property or asset.

          "Redeeming Partner" has the meaning set forth in Section 8.6.

          "Redemption Amount" means either the Cash Amount or the REIT Shares
Amount, as determined by the General Partner in its sole and absolute
discretion. A Redeeming Partner shall have no right, without the General
Partner's consent, to receive the Redemption Amount in the form of REIT Shares
Amount.

          "Redemption Right" has the meaning set forth in Section 8.6.

          "Regulations" means the Income Tax Regulations promulgated under the
Code, as such regulations may be amended from time to time (including
corresponding provisions of succeeding regulations).

          "REIT" means a real estate investment trust under Section 856 of the
Code.

          "REIT Share" shall mean a share of common stock of or comparable
equity interest in CarrAmerica.

          "REIT Shares Amount" shall mean a number of REIT Shares equal to the
product of one times the Conversion Factor; provided that, in the event the
CarrAmerica issues to all holders of REIT Shares rights, options, warrants or
convertible or exchangeable securities entitling such holders to subscribe for
or purchase REIT Shares, or any other securities or property (collectively, the
"rights") then the REIT Shares Amount shall also include such rights that a
holder of that number of REIT Shares would be entitled to receive.

          "Residual Gain" or "Residual Loss" means any item of gain or loss, as
the case may be, of the Partnership recognized for federal income tax purposes
resulting from a sale, exchange or other disposition of Contributed Property or
Adjusted Property, to the

                                     - 9 -

<PAGE>

extent such item of gain or loss is not allocated pursuant to Section 2.B.1(a)
or 2.B.2(a) of Exhibit C to eliminate Book-Tax Disparities.

          "Securities Act" means the Securities Act of 1933, as amended.

          "704(c) Value" of any Contributed Property means the fair market value
of such property at the time of contribution as determined by the General
Partner using such reasonable method of valuation as it may adopt; provided,
however, that the 704(c) Value of any property deemed contributed to the
Partnership for federal income tax purposes upon termination and reconstitution
thereof pursuant to Section 708 of the Code shall be determined in accordance
with Exhibit B hereof. Subject to Exhibit B hereof, the General Partner shall,
in its sole and absolute discretion, use such method as it deems reasonable and
appropriate to allocate the aggregate of the 704(c) Value of Contributed
Properties in a single or integrated transaction among each separate property on
a basis proportional to its fair market values.

          "Specified Redemption Date" means the tenth Business Day after receipt
by the General Partner of a Notice of Redemption; provided that, no Specified
Redemption Date with respect to a Partnership Unit shall occur before one (1)
year from the date such Partnership Unit was originally issued.

          "Subsidiary" means, with respect to any Person, any corporation or
other entity of which a majority of (i) the voting power of the voting equity
securities or (ii) the outstanding equity interests is owned, directly or
indirectly, by such Person.

          "Substituted Limited Partner" means a Person who is admitted as a
Limited Partner to the Partnership pursuant to Section 11.4.

          "Terminating Capital Transaction" means any sale or other disposition
of all or substantially all of the assets of the Partnership for cash or a
related series of transactions that, taken together, result in the sale or other
disposition of all or substantially all of the assets of the Partnership for
cash.

          "Termination Transaction" has the meaning set forth in Section 8.6.E.

          "Unrealized Gain" attributable to any item of Partnership property
means, as of any date of determination, the excess, if any, of (i) the fair
market value of such property (as determined under Exhibit B hereof) as of such
date, over (ii) the Carrying Value of such property (prior to any adjustment to
be made pursuant to Exhibit B hereof) as of such date.

          "Unrealized Loss" attributable to any item of Partnership property
means, as of any date of determination, the excess, if any, of (i) the Carrying
Value of such property (prior to any adjustment to be made pursuant to Exhibit B
hereof) as of such date, over (ii) the fair market value of such property (as
determined under Exhibit B hereof) as of such date.

                                     - 10 -

<PAGE>

          "Valuation Date" means the date of receipt by the General Partner of a
Notice of Redemption or, if such date is not a Business Day, the first Business
Day thereafter.

          "Value" means, with respect to a REIT Share, the average of the daily
market price for the ten (10) consecutive trading days immediately preceding the
Valuation Date. The market price for each such trading day shall be: (i) if the
REIT Shares are listed or admitted to trading on any securities exchange or the
NASDAQ-National Market System, the closing price, regular way, on such day, or
if no such sale takes place on such day, the average of the closing bid and
asked prices on such day, (ii) if the REIT Shares are not listed or admitted to
trading on any securities exchange or the NASDAQ-National Market System, the
last reported sale price on such day or, if no sale takes place on such day, the
average of the closing bid and asked prices on such day, as reported by a
reliable quotation source designated by the General Partner, or (iii) if the
REIT Shares are not listed or admitted to trading on any securities exchange or
the NASDAQ-National Market System and no such last reported sale price or
closing bid and asked prices are available, the average of the reported high bid
and low asked prices on such day, as reported by a reliable quotation source
designated by the General Partner, or if there shall be no bid and asked prices
on such day, the average of the high bid and low asked prices, as so reported,
on the most recent day (not more than ten (10) days prior to the date in
question) for which prices have been so reported; provided that, if there are no
bid and asked prices reported during the ten (10) days prior to the date in
question, the Value of the REIT Shares shall be determined by the General
Partner acting in good faith on the basis of such quotations and other
information as it considers, in its reasonable judgment, appropriate. In the
event the REIT Shares Amount includes rights that a holder of REIT Shares would
be entitled to receive, then the Value of such rights shall be determined by the
General Partner acting in good faith on the basis of such quotations and other
information as it considers, in its reasonable judgment, appropriate.

                                   ARTICLE II
                             ORGANIZATIONAL MATTERS

          Section 2.1 Organization

          The Partnership is a limited partnership organized pursuant to the
provisions of the Act and upon the terms and conditions set forth in the
Agreement of Limited Partnership, dated as of March 5, 1996, as amended prior to
the date hereof. The Partners hereby continue the Partnership and amend and
restate such Agreement of Limited Partnership as amended prior to the date
hereof in its entirety. Except as expressly provided herein to the contrary, the
rights and obligations of the Partners and the administration and termination of
the Partnership shall be governed by the Act. The Partnership Interest of each
Partner shall be personal property for all purposes.

          Section 2.2 Name

          The name of the Partnership is CarrAmerica Realty, L.P. The
Partnership's business may be conducted under any other name or names deemed
advisable by the

                                     - 11 -

<PAGE>

General Partner, including the name of the General Partner or any Affiliate
thereof. The words "Limited Partnership," "L.P.," "Ltd." or similar words or
letters shall be included in the Partnership's name where necessary for the
purposes of complying with the laws of any jurisdiction that so requires. The
General Partner in its sole and absolute discretion may change the name of the
Partnership at any time and from time to time and shall notify the Limited
Partners of such change in the next regular communication to the Limited
Partners.

          Section 2.3 Registered Office and Agent; Principal Office

          The address of the registered office of the Partnership in the State
of Delaware is located at 1209 Orange Street, Wilmington, Delaware, and the
registered agent for service of process on the Partnership in the State of
Delaware at such registered office is Corporation Trust Company. The principal
office of the Partnership is 1850 K Street, N.W., Washington, D.C. 20006, or
such other place as the General Partner may from time to time designate by
notice to the Limited Partners. The Partnership may maintain offices at such
other place or places within or outside the State of Delaware as the General
Partner deems advisable.

          Section 2.4 Term

          The term of the Partnership commenced on March 5, 1996 and shall
continue until December 31, 2095, unless it is dissolved sooner pursuant to the
provisions of Article XIII or as otherwise provided by law.

                                   ARTICLE III
                                     PURPOSE

          Section 3.1 Purpose and Business

          The purpose and nature of the business to be conducted by the
Partnership is (i) to conduct any business that may be lawfully conducted by a
limited partnership organized pursuant to the Act, provided, however, that such
business shall be limited to and conducted in such a manner as to permit
CarrAmerica at all times to be classified as a REIT, unless CarrAmerica ceases
to qualify as a REIT for any reason or reasons not related to the business
conducted by the Partnership, (ii) to enter into any partnership, joint venture
or other similar arrangement to engage in any of the foregoing or the ownership
of interests in any entity engaged in any of the foregoing and (iii) to do
anything necessary or incidental to the foregoing. In connection with the
foregoing and without limiting CarrAmerica's right, in its sole discretion, to
cease qualifying as a REIT, the Partners acknowledge that CarrAmerica's status
as a REIT inures to the benefit of all the Partners and not solely the General
Partner or its Affiliates.

                                     - 12 -

<PAGE>

          Section 3.2 Powers

          The Partnership is empowered to do any and all acts and things
necessary, appropriate, proper, advisable, incidental to or convenient for the
furtherance and accomplishment of the purposes and business described herein and
for the protection and benefit of the Partnership, including, without
limitation, full power and authority, directly or through its ownership interest
in other entities, to enter into, perform and carry out contracts of any kind,
borrow money and issue evidences of indebtedness whether or not secured by
mortgages, deed of trust, pledge or other lien, acquire and develop real
property and lease, sell, transfer and dispose of real property; provided,
however, that the Partnership shall not take, or refrain from taking, any action
which, in the judgment of the General Partner, in its sole and absolute
discretion, (i) could adversely affect the ability of CarrAmerica to continue to
qualify as a REIT, (ii) could subject CarrAmerica to any additional taxes under
Section 857 or Section 4981 of the Code or (iii) could violate any law or
regulation of any governmental body or agency having jurisdiction over
CarrAmerica or the General Partner or the securities of either of them, unless
such action (or inaction) shall have been specifically consented to by the
General Partner in writing.

                                   ARTICLE IV
                        CAPITAL CONTRIBUTIONS; ISSUANCES
                            Of PARTNERSHIP INTERESTS

          Section 4.1 Capital Contributions of the Partners

          At the time of the execution of this Agreement, the Partners made the
Capital Contributions set forth in the Partner Register. To the extent the
Partnership acquires any property by the merger of any other Person into the
Partnership, Persons who receive Partnership Interests in exchange for their
interests in the Person merging into the Partnership shall become Partners and
shall be deemed to have made Capital Contributions as provided in the applicable
merger agreement and as set forth in the Partner Register. The Partners own
Partnership Units in the amounts set forth in the Partner Register and have a
Percentage Interest in the Partnership as set forth in the Partner Register,
which Percentage Interest shall be adjusted in the Partner Register from time to
time by the General Partner to the extent necessary to reflect accurately
redemptions, Capital Contributions, the issuance of additional Partnership
Units, or similar events having an effect on a Partner's Percentage Interest.
The number of Partnership Units held by the General Partner shall be equal to at
least one percent (1%) of all outstanding Partnership Units, shall be deemed to
be the General Partner Partnership Units and shall be the General Partnership
Interest. Except as provided in Section 10.5, the Partners shall have no
obligation to make any additional Capital Contributions or loans to the
Partnership. No Partner shall have any obligation to restore any deficit that
may exist in its Capital Account, either upon a liquidation of the Partnership
or otherwise.

                                     - 13 -

<PAGE>

          Section 4.2 Issuances of Partnership Interests

          A. General. The General Partner is hereby authorized to cause the
Partnership from time to time to issue to Partners or other Persons other than
the General Partner (including, without limitation, in connection with the
contribution of property to the Partnership) additional Partnership Units or
other Partnership Interests in one or more classes, or one or more series of any
of such classes, with such designations, preferences and relative,
participating, optional or other special rights, powers and duties, including
rights, powers and duties senior to Limited Partnership Interests, all as shall
be determined by the General Partner in its sole and absolute discretion subject
to Delaware law, including, without limitation, (i) the allocations of items of
Partnership income, gain, loss, deduction and credit to each such class or
series of Partnership Interests, (ii) the right of each such class or series of
Partnership Interests to share in Partnership distributions, and (iii) the
rights of each such class or series of Partnership Interests upon dissolution
and liquidation of the Partnership.

          B. Issuances of Additional Partnership Interests to the General
Partner. The General Partner may make Capital Contributions to the Partnership
at such times and in such amounts as the General Partner, in its sole and
absolute discretion, may determine advisable, but under no circumstances shall
the General Partner be obligated to make any such Capital Contribution. In
exchange for each such Capital Contribution, the Partnership shall issue to the
General Partner, at the election of the General Partner in its sole and absolute
discretion, (i) that number of Partnership Units equal to (a) the amount of the
Capital Contribution divided by (b) the Value of a REIT Share or (ii) or other
Partnership Interests, in one or more classes, or one or more series of any of
such classes, with such designations, preferences and relative, participating,
optional or other special rights, powers and duties, including rights, powers
and duties senior to Limited Partnership Interests, all as shall be determined
by the General Partner in good faith, subject to Delaware law, including,
without limitation, (x) the allocations of items of Partnership income, gain,
loss, deduction and credit to each such class or series of Partnership
Interests, (y) the right of each such class or series of Partnership Interests
to share in Partnership distributions, and (z) the rights of each such class or
series of Partnership Interests upon dissolution and liquidation of the
Partnership.

          C. Class A Units and Class B Units. Under the authority granted to it
by Section 4.2.A hereof, the General Partner has established a class of
Partnership Units entitled "Class A Units" and a class of Partnership Units
entitled "Class B Units." Class A Units and Class B Units have the designations
and duties as set forth herein. Any Partnership Units acquired by the
Partnership or the General Partner through the satisfaction of the Redemption
Right pursuant to Section 8.6 hereof shall automatically convert into Class B
Units on a one for one basis.

          D. Class C Units. Under the authority granted to it by Section 4.2.A
hereof, the General Partner has established an additional class of Partnership
Units entitled "Class C Units." Class C Units have the designations,
preferences, rights, powers and duties as set forth in Exhibit E hereto.

                                     - 14 -

<PAGE>

          E. Class D Units. Under the authority granted to it by Section 4.2.A
hereof, the General Partner has established an additional class of Partnership
Units entitled "Class D Units." Class D Units have the designations,
preferences, rights, powers and duties as set forth in Exhibit F hereto.

          F. Class E Units. Under the authority granted to it by Section 4.2.A
hereof, the General Partner has established an additional class of Partnership
Units entitled "Class E Units." Class E Units have the same designations,
preferences, rights, powers and duties as Class A Units. Notwithstanding the
preceding sentence, holders of Class E Units shall be entitled to a special
allocation of losses from the Partnership in the aggregate amount of $50,000 per
year for a period of twenty-eight (28) years from the date of issuance of such
Class E Units (i.e., December 12, 1997).

          G. Minimum Percentage Interest of General Partner. The provisions of
this Section 4.2 shall be applied so that in all events the Percentage Interest
of the General Partner shall be equal to at least 1.00%. In the event the
issuance of additional Partnership Units or Partnership Interests pursuant to
Section 4.2.A would (but for this Section 4.2.G) have the effect of reducing the
Percentage Interest of the General Partner to less than 1.00%, LP Holdings shall
transfer Partnership Units to the General Partner (and, as of the effective date
of such issuance, LP Holdings shall be deemed to hold Partnership Units for the
benefit of the General Partner) to the extent necessary to cause the General
Partner's Percentage Interest, after giving effect to such issuance, to be equal
to at least 1.00%.

          Section 4.3 No Preemptive Rights

          No Person shall have any preemptive, preferential or other similar
right with respect to (i) additional Capital Contributions or loans to the
Partnership or (ii) issuance or sale of any Partnership Units or other
Partnership Interests.

                                    ARTICLE V
                                  DISTRIBUTIONS

          Section 5.1 Requirement and Characterization of Distributions

          Subject to the provisions of Exhibit F hereto, the General Partner
shall distribute at least quarterly an amount equal to one hundred percent
(100%) of Available Cash generated by the Partnership during such quarter or
shorter period to the Partners who are Partners on the Partnership Record Date
with respect to such quarter or shorter period as follows: (i) to the extent
that there is sufficient Available Cash, each holder of Class A Units shall be
entitled to a distribution per Class A Unit equal to any accrued but unpaid
distributions payable with respect to such Class A Unit, if any, together with
any accrued interest thereon, for all prior periods with respect to which such
Class A Unit was issued and outstanding (as described in clause (ii) below);
(ii) after the payment of any accrued but unpaid distributions, if any, for all
prior periods in accordance with the foregoing clause (i), to the extent that
there is sufficient Available Cash, each holder of

                                     - 15 -

<PAGE>

Class A Units shall be entitled to a distribution per Class A Unit (multiplied
by the Conversion Factor) in an amount equal to the dividend per REIT Share paid
by the General Partner for such quarter multiplied by a fraction, the numerator
of which is the number of days in the quarter or shorter period to which such
distribution relates that the Class A Unit was issued and outstanding, and the
denominator of which is the total number of days in the quarter or shorter
period to which such distribution relates; provided, that to the extent that
there is not sufficient Available Cash to pay the distributions per Class A Unit
(multiplied by the Conversion Factor) in accordance with this clause (ii), such
deficit shall cumulate, and shall accrue interest at a rate of eight percent
(8%) per annum, and no distribution (other than to a Redeeming Partner as
provided in Section 8.6.C) shall be made for any subsequent distribution period
pursuant to clauses (ii) and (iii) hereof, unless all such accrued but unpaid
distributions (including any accrued interest thereon) shall have been paid to
the holders of the Class A Units pursuant to clause (i) above for all prior
periods; and (iii) to the extent there is excess Available Cash after the
application of clauses (i) and (ii), such excess shall be distributed to each
holder of Class B Units, on a pro rata basis. Notwithstanding anything to the
contrary contained herein, in no event may a Partner receive a distribution of
Available Cash with respect to a Partnership Unit for a quarter or shorter
period if such Partner is entitled to receive a distribution with respect to a
REIT Share for which such Unit has been redeemed or exchanged.

          Section 5.2 Amounts Withheld

          All amounts withheld pursuant to the Code or any provisions of any
state or local tax law and Section 10.5 hereof with respect to any allocation,
payment or distribution to the General Partner, the Limited Partners or
Assignees shall be treated as amounts distributed to the General Partner,
Limited Partners, or Assignees pursuant to Section 5.1 for all purposes under
this Agreement.

          Section 5.3 Distributions Upon Liquidation

          Proceeds from a Terminating Capital Transaction shall be distributed
to the Partners in accordance with Section 13.2.

                                   ARTICLE VI
                                   ALLOCATIONS

          Section 6.1 Allocations For Capital Account Purposes

          For purposes of maintaining the Capital Accounts and in determining
the rights of the Partners among themselves, the Partnership's items of income,
gain, loss and deduction (computed in accordance with Exhibit B hereof) shall be
allocated among the Partners in each taxable year (or portion thereof) as
provided herein below.

          A. Net Income. After giving effect to the special allocations set
forth in Section 1 of Exhibit C, Net Income shall be allocated (i) first, to the
General Partner to the

                                     - 16 -

<PAGE>

extent that Net Losses previously allocated to the General Partner pursuant to
the last sentence of Section 6.1.B exceed Net Income previously allocated to the
General Partner pursuant to this clause (i) of Section 6.1.A, (ii) second, to
the Class A Units in accordance with their respective Percentage Interests to
each Partner until each Class A Unit has been allocated, on a cumulative basis
pursuant to this clause (ii), Net Income equal to the sum of the distributions
paid with respect to such Class A Unit pursuant to clauses (i) and (ii) of
Section 5.1, if any, and (iii) thereafter, to the Class B Units.

          B. Net Losses. After giving effect to the special allocations set
forth in Section 1 of Exhibit C, Net Losses shall be allocated (i) first, to the
Class B Units to the extent that any prior allocations of Net Income to the
Class B Units pursuant to Section 6.1(a)(iii) exceed, on a cumulative basis,
distributions with respect to the Class B Units pursuant to clause (iii) of
Section 5.1, (ii) second, to the Class A Units to the extent that any prior
allocations of Net Income pursuant to Section 6.1(a)(ii) exceed, on a cumulative
basis, the distributions paid with respect to such Class A Units pursuant to
clauses (i) and (ii) of Section 5.1 and (iii) third, to the Partners in
accordance with their respective Percentage Interests, provided that Net Losses
shall not be allocated to any Limited Partner pursuant to this Section 6.1.B to
the extent that such allocation would cause such Limited Partner to have an
Adjusted Capital Account Deficit at the end of such taxable year (or increase
any existing Adjusted Capital Account Deficit). All Net Losses in excess of the
limitations set forth in this Section 6.1.B shall be allocated to the General
Partner.

          C. Allocation of Nonrecourse Debt. For purposes of Regulations Section
1.752-3(a), the Partners agree that Nonrecourse Liabilities of the Partnership
in excess of the sum of (i) the amount of Partnership Minimum Gain and (ii) the
total amount of Nonrecourse Built-in Gain shall be allocated among the Partners
in accordance with their respective Percentage Interests.

          D. Recapture Income. Any gain allocated to the Partners upon the sale
or other taxable disposition of any Partnership asset shall to the extent
possible, after taking into account other required allocations of gain pursuant
to Exhibit C, be characterized as Recapture Income in the same proportions and
to the same extent as such Partners have been allocated any deductions directly
or indirectly giving rise to the treatment of such gains as Recapture Income.

                                   ARTICLE VII
                      MANAGEMENT AND OPERATIONS OF BUSINESS

          Section 7.1 Management

          A. Powers of General Partner. Except as otherwise expressly provided
in this Agreement, all management powers over the business and affairs of the
Partnership are and shall be exclusively vested in the General Partner, and no
Limited Partner shall have any right to participate in or exercise control or
management power over the business and affairs of the Partnership. The General
Partner may not be removed by the Limited Partners with or without cause. In
addition to the powers now or hereafter granted a general partner of a limited
partnership under applicable law or which are granted to the

                                     - 17 -

<PAGE>

General Partner under any other provision of this Agreement, the General Partner
shall have full power and authority to do all things deemed necessary or
desirable by it to conduct the business of the Partnership, to exercise all
powers set forth in Section 3.2 hereof and to effectuate the purposes set forth
in Section 3.1 hereof, including, without limitation:

          (1)  the making of any expenditures, the lending or borrowing of money
               (including, without limitation, making prepayments on loans and
               borrowing money to permit the Partnership to make distributions
               to its Partners in such amounts as will permit CarrAmerica (so
               long as CarrAmerica qualifies as a REIT) to avoid the payment of
               any federal income tax (including, for this purpose, any excise
               tax pursuant to Section 4981 of the Code) and to make
               distributions to its shareholders sufficient to permit
               CarrAmerica to maintain REIT status), the assumption or guarantee
               of, or other contracting for, indebtedness and other liabilities,
               the issuance of evidences of indebtedness (including the securing
               of same by deed to secure debt, mortgage, deed of trust or other
               lien or encumbrance on the Partnership's assets) and the
               incurring of any obligations it deems necessary for the conduct
               of the activities of the Partnership;

          (2)  the making of tax, regulatory and other filings, or rendering of
               periodic or other reports to governmental or other agencies
               having jurisdiction over the business or assets of the
               Partnership;

          (3)  the acquisition, disposition, mortgage, pledge, encumbrance,
               hypothecation or exchange of any or all of the assets of the
               Partnership (including the exercise or grant of any conversion,
               option, privilege or subscription right or other right available
               in connection with any assets at any time held by the
               Partnership) or the merger or other combination of the
               Partnership with or into another entity on such terms as the
               General Partner deems proper, which powers shall include, without
               limitation, the power to pledge any or all of the assets of the
               Partnership to secure a loan or other financing for the benefit
               of the General Partner or CarrAmerica (the proceeds of which are
               not required to be contributed or loaned to the Partnership);

          (4)  the use of the assets of the Partnership (including, without
               limitation, cash on hand) for any purpose consistent with the
               terms of this Agreement and on any terms it sees fit, including,
               without limitation, the financing of the conduct of the
               operations of the General Partner, CarrAmerica, the Partnership
               or any of the Partnership's Subsidiaries, the lending of funds to
               other Persons (including, without limitation, the Partnership's
               Subsidiaries and CarrAmerica's Subsidiaries) and the repayment of
               obligations of the Partnership and its Subsidiaries and any other
               Person in which it has an equity investment and the making of
               capital contributions to its Subsidiaries;

                                     - 18 -

<PAGE>

          (5)  the management, operation, leasing, landscaping, repair,
               alteration, demolition or improvement of any real property or
               improvement owned by the Partnership or any Subsidiary of the
               Partnership;

          (6)  the negotiation, execution, and performance of any contracts,
               conveyances or other instruments that the General Partner
               considers useful or necessary to the conduct of the Partnership's
               operations or the implementation of the General Partner's powers
               under this Agreement;

          (7)  the distribution of Partnership cash or other Partnership assets
               in accordance with this Agreement;

          (8)  the holding, managing, investing and reinvesting of cash and
               other assets of the Partnership;

          (9)  the collection and receipt of revenues and income of the
               Partnership;

          (10) the selection and dismissal of employees of the Partnership or
               the General Partner (including, without limitation, employees
               having titles such as "president," vice president," "secretary"
               and "treasurer") and agents, outside attorneys, accountants,
               consultants and contractors of the Partnership or the General
               Partner, and the determination of their compensation and other
               terms of employment or hiring;

          (11) the maintenance of such insurance for the benefit of the
               Partnership and the Partners as it deems necessary or
               appropriate;

          (12) the formation of, or acquisition of an interest in, and the
               contribution of property to, any further limited or general
               partnerships, joint ventures or other relationships that it deems
               desirable (including, without limitation, the acquisition of
               interests in, and the contributions of property to its
               Subsidiaries and any other Person in which it has an equity
               investment from time to time);

          (13) the control of any matters affecting the rights and obligations
               of the Partnership, including the conduct of litigation and the
               incurring of legal expense and the settlement of claims and
               litigation, and the indemnification of any Person against
               liabilities and contingencies to the extent permitted by law;

          (14) the undertaking of any action in connection with the
               Partnership's direct or indirect investment in its Subsidiaries
               or any other Person (including, without limitation, the
               contribution or loan of funds by the Partnership to such
               Persons); and

                                     - 19 -

<PAGE>

          (15) the determination of the fair market value of any Partnership
               property distributed in kind using such reasonable method of
               valuation as it may adopt.

          B. No Approval by Limited Partners. Each of the Limited Partners
agrees that the General Partner is authorized to execute, deliver and perform
the above-mentioned agreements and transactions on behalf of the Partnership
without any further act, approval or vote of the Partners, notwithstanding any
other provision of this Agreement, the Act or any applicable law, rule or
regulation to the fullest extent permitted under the Act or other applicable
law. The execution, delivery or performance by the General Partner or the
Partnership of any agreement authorized or permitted under this Agreement shall
not constitute a breach by the General Partner of any duty that the General
Partner may owe the Partnership or the Limited Partners or any other Persons
under this Agreement or of any duty stated or implied by law or equity.

          C. Insurance. At all times from and after the date hereof, the General
Partner may cause the Partnership to obtain and maintain (i) casualty, liability
and other insurance on the properties of the Partnership and (ii) liability
insurance for the Indemnitees hereunder.

          D. Working Capital Reserves. At all times from and after the date
hereof, the General Partner may cause the Partnership to establish and maintain
working capital reserves in such amounts as the General Partner, in its sole and
absolute discretion, deems appropriate and reasonable from time to time.

          E. No Obligations to Consider Tax Consequences of Limited Partners. In
exercising its authority under this Agreement, the General Partner may, but
shall be under no obligation to, take into account the tax consequences to any
Partner of any action taken by it. The General Partner and the Partnership shall
not have liability to a Limited Partner under any circumstances as a result of
an income tax liability incurred by such Limited Partner as a result of an
action (or inaction) by the General Partner pursuant to its authority under this
Agreement.

          Section 7.2 Certificate of Limited Partnership

          The Certificate has been previously filed with the Secretary of State
of Delaware. To the extent that such action is determined by the General Partner
to be reasonable and necessary or appropriate, the General Partner shall file
amendments to and restatements of the Certificate and do all the things to
maintain the Partnership as a limited partnership (or a partnership in which the
limited partners have limited liability) under the laws of the State of Delaware
and each other state, the District of Columbia or other jurisdiction in which
the Partnership may elect to do business or own property. Subject to the terms
of Section 8.5.A(4) hereof, the General Partner shall not be required, before or
after filing, to deliver or mail a copy of the Certificate or any amendment
thereto to any Limited Partner. The General Partner shall use all reasonable
efforts to cause to be filed such other certificates or documents as may be
reasonable and necessary or

                                     - 20 -

<PAGE>

appropriate for the formation, continuation, qualification and operation of a
limited partnership (or a partnership in which the limited partners have limited
liability) in the State of Delaware and any other state, the District of
Columbia or other jurisdiction, in which the Partnership may elect to do
business or own property.

          Section 7.3 Title to Partnership Assets

          Title to Partnership assets, whether real, personal or mixed and
whether tangible or intangible, shall be deemed to be owned by the Partnership
as an entity, and no Partner, individually or collectively, shall have any
ownership interest in such Partnership assets or any portion thereof. Title to
any or all of the Partnership assets may be held in the name of the Partnership,
the General Partner or one or more nominees, as the General Partner may
determine, including Affiliates of the General Partner. The General Partner
hereby declares and warrants that any Partnership assets for which legal title
is held in the name of the General Partner or any nominee or Affiliate of the
General Partner shall be held by the General Partner for the use and benefit of
the Partnership in accordance with the provisions of this Agreement; provided,
however, that the General Partner shall use its best efforts to cause beneficial
and record title to such assets to be vested in the Partnership as soon as
reasonably practicable. All Partnership assets shall be recorded as the property
of the Partnership in its books and records, irrespective of the name in which
legal title to such Partnership assets is held.

          Section 7.4 Reimbursement of the General Partner

          A. No Compensation. Except as provided in this Section 7.4 and
elsewhere in this Agreement (including the provisions of Articles V and VI
regarding distributions, payments, and allocations to which it may be entitled),
the General Partner shall not be compensated for its services as general partner
of the Partnership.

          B. Responsibility for Partnership Expenses. The Partnership shall be
responsible for and shall pay all expenses relating to the Partnership's
organization, the ownership of its assets and its operations. The General
Partner shall be reimbursed on a monthly basis, or such other basis as the
General Partner may determine in its sole and absolute discretion, for all
expenses it incurs relating to the operation of, or for the benefit of, the
Partnership. The General Partner shall determine in good faith the amount of
expenses incurred by it related to the operation of, or for the benefit of, the
Partnership. In the event that certain expenses are incurred for the benefit of
the Partnership and other entities (including the General Partner), such
expenses will be allocated to the Partnership and such other entities in such a
manner as the General Partner in its sole and absolute discretion deems fair and
reasonable. Such reimbursements shall be in addition to any reimbursement to the
General Partner pursuant to Section 10.3(c) or as a result of indemnification
pursuant to Section 7.7 hereof. All payments and reimbursements hereunder shall
be characterized for federal income tax purposes as expenses of the Partnership
incurred on its behalf, and not as expenses of the General Partner.

                                     - 21 -

<PAGE>

          C. Partnership Interest Issuance Expenses. The General Partner also
shall be reimbursed for all expenses it incurs relating to any issuance of
additional Partnership Interests pursuant to Section 4.2 hereof.

          Section 7.5 Outside Activities of the General Partner and its
                      Affiliates

          A. General. Nothing contained in this Agreement shall prevent or
prohibit the General Partner or any officer, director, employee, agent, trustee,
Affiliate or shareholder of the General Partner (including, without limitation,
CarrAmerica and LP Holdings) having business interests and engaging in business
activities in addition to those relating to the Partnership (including, without
limitation, owning and operating real estate and incurring indebtedness in its
own name, whether or not the proceeds of such indebtedness are used for the
benefit of the Partnership), including, without limitation, engaging in other
business interests and activities in direct or indirect competition with the
Partnership. Neither the Partnership nor any Partners shall have any right by
virtue of this Agreement or the partnership relationship established hereby in
or to such other ventures or activities or to the income or proceeds derived
therefrom, and the pursuit of such ventures, even if competitive with the
business of the Partnership (including, without limitation, causing tenants to
transfer from one of the Partnership's properties to other properties in which
the General Partner has an interest, directly or indirectly, without
compensation to the Partnership, or taking other actions for the benefit of the
General Partner or other entities affiliated with the General Partner that are
detrimental to the Partnership), shall not be deemed wrongful or improper.
Neither the General Partner nor any Affiliate of the General Partner (including,
without limitation, CarrAmerica and LP Holdings) shall be obligated to present
any particular opportunity to the Partnership even if such opportunity is of a
character which, if presented to the Partnership, could be taken by the
Partnership, and, regardless of whether or not such opportunity is competitive
with the Partnership, the General Partner or any Affiliate of the General
Partner shall have the right to take for its own account (individually or as a
trustee, partner or fiduciary), or to recommend to others, any such particular
opportunity. The General Partner and any Affiliates of the General Partner may
acquire Limited Partnership Interests and shall be entitled to exercise all
rights of a Limited Partner relating to such Limited Partnership Interests.

          B. Sale and Purchase of REIT Shares. CarrAmerica may issue additional
REIT Shares or rights, options, warrants or convertible or exchangeable
securities containing the right to subscribe for or purchase REIT Shares ("New
Securities"), or purchase or redeem REIT Shares, at such times and in such
amounts and for such consideration as CarrAmerica, in its sole and absolute
discretion, determines. Under no circumstances shall CarrAmerica be obligated to
contribute to the General Partner or the Partnership all or any part of the
proceeds from any issuance of such New Securities or from the exercise of rights
contained in such New Securities, and CarrAmerica may, in its sole and absolute
discretion, retain all such proceeds, to be used by CarrAmerica as it
determines, in its sole and absolute discretion, to be advisable.

                                     - 22 -

<PAGE>

          Section 7.6 Transactions with Affiliates

          A. Permitted Transactions. Subject to Section 7.6.B below, the
Partnership may lend or contribute funds to, borrow funds from, and enter into
any other transactions with (including, without limitation, the purchase or sale
of any property or the transfer of a tenant from one of the Partnership's
properties to other properties in which the General Partner has an interest,
directly or indirectly, without compensation to the Partnership), the General
Partner, the Partnership's Subsidiaries or other Persons in which it has an
equity investment, or Affiliates of the Partnership, the General Partner or such
Subsidiaries or other Persons, on terms and conditions established in the sole
and absolute discretion of the General Partner. The foregoing authority shall
not create any right or benefit in favor of any Subsidiary or any other Person.
The Partnership may transfer assets to joint ventures, other partnerships,
corporations or other business entities in which it is or thereby becomes a
participant upon such terms and subject to such conditions consistent with this
Agreement and applicable law.

          B. Transactions with Certain Affiliates. Except as expressly permitted
by this Agreement, the Partnership shall not, directly or indirectly, sell,
transfer or convey any property to, or purchase any property from, or borrow
funds from, or lend funds to, any Affiliate of the Partnership or the General
Partner that is not a Subsidiary of the Partnership or the General Partner,
except pursuant to transactions that are on terms that are fair and reasonable
and no less favorable to the Partnership than would be obtained from an
unaffiliated third party.

          C. Benefit Plans. The General Partner, in its sole and absolute
discretion and without the approval of the Limited Partners, may propose and
adopt on behalf of the Partnership employee benefit plans funded by the
Partnership for the benefit of employees of the General Partner, the
Partnership, Subsidiaries of the Partnership or any Affiliate of any of them in
respect of services performed, directly or indirectly, for the benefit of the
Partnership, the General Partner, or any of the Partnership's Subsidiaries.

          D. Redemption of Partnership Units held by General Partner. The
Partnership is expressly permitted to purchase Partnership Units held by the
General Partner at any time and upon such terms as the General Partner, in its
sole and absolute discretion, shall determine, subject to Section 7.6.B;
provided , that any such purchase of Partnership Units from the General Partner
shall be deemed to have complied with Section 7.6.B if the purchase price per
Partnership Unit is equal to either (i) the Value of a REIT Share or (ii) the
price paid by the General Partner for such Partnership Unit, if such Partnership
Unit has been acquired from a third party.

          Section 7.7 Indemnification

          A. General. The Partnership shall indemnify an Indemnitee from and
against any and all losses, claims, damages, liabilities, joint or several,
expenses (including, without limitation, attorneys fees and other legal fees and
expenses), judgments, fines, settlements, and other amounts arising from any and
all claims, demands, actions, suits or proceedings, civil, criminal,
administrative or investigative, that

                                     - 23 -

<PAGE>

relate to the operations of the Partnership as set forth in this Agreement in
which any such Indemnitee may be involved, or is threatened to be involved, as a
party or otherwise, unless it is established that: (i) the act or omission of
the Indemnitee was material to the matter giving rise to the proceeding and
either was committed in bad faith or was the result of active and deliberate
dishonesty, (ii) the Indemnitee actually received an improper personal benefit
in money, property or services, or (iii) in the case of any criminal proceeding,
the Indemnitee had reasonable cause to believe that the act or omission was
unlawful. Without limitation, the foregoing indemnity shall extend to any
liability of any Indemnitee, pursuant to a loan guarantee or otherwise, for any
indebtedness of the Partnership or any Subsidiary of the Partnership (including,
without limitation, any indebtedness which the Partnership or any Subsidiary of
the Partnership has assumed or taken subject to), and the General Partner is
hereby authorized and empowered, on behalf of the Partnership, to enter into one
or more indemnity agreements consistent with the provisions of this Section 7.7
in favor of any Indemnitee having or potentially having liability for any such
indebtedness. The termination of any proceeding by judgment, order or settlement
does not create a presumption that the Indemnitee did not meet the requisite
standard of conduct set forth in this Section 7.7.A. The termination of any
proceeding by conviction or upon a plea of nolo contendere or its equivalent, or
an entry of an order of probation prior to judgment, creates a rebuttable
presumption that the Indemnitee acted in a manner contrary to that specified in
this Section 7.7.A with respect to the subject matter of such proceeding. Any
indemnification pursuant to this Section 7.7 shall be made only out of the
assets of the Partnership, and neither the General Partner nor any Limited
Partner shall have any obligation to contribute to the capital of the
Partnership or otherwise provide funds to enable the Partnership to fund its
obligations under this Section 7.7.

          B. Advancement of Expenses. Reasonable expenses incurred by an
Indemnitee who is a party to a proceeding may be paid or reimbursed by the
Partnership in advance of the final disposition of the proceeding upon receipt
by the Partnership of (i) a written affirmation by the Indemnitee of the
Indemnitee's good faith belief that the standard of conduct necessary for
indemnification by the Partnership as authorized in this Section 7.7.A has been
met, and (ii) a written undertaking by or on behalf of the Indemnitee to repay
the amount if it shall ultimately be determined that the standard of conduct has
not been met.

          C. No Limitation of Rights. The indemnification provided by this
Section 7.7 shall be in addition to any other rights to which an Indemnitee or
any other Person may be entitled under any agreement, pursuant to any vote of
the Partners, as a matter of law or otherwise, and shall continue as to an
Indemnitee who has ceased to serve in such capacity unless otherwise provided in
a written agreement pursuant to which such Indemnitee is indemnified.

          D. Insurance. The Partnership may purchase and maintain insurance, on
behalf of the Indemnitees and such other Persons as the General Partner shall
determine, against any liability that may be asserted against or expenses that
may be incurred by such Person in connection with the Partnership's activities,
regardless of whether the Partnership would have the power to indemnify such
Person against such liability under the provisions of this Agreement.

                                     - 24 -

<PAGE>

          E. Benefit Plan Fiduciary. For purposes of this Section 7.7, (i) the
Partnership shall be deemed to have requested an Indemnitee to serve as
fiduciary of an employee benefit plan whenever the performance by it of its
duties to the Partnership also imposes duties on, or otherwise involves services
by, it to the plan or participants or beneficiaries of the plan, (ii) excise
taxes assessed on an Indemnitee with respect to an employee benefit plan
pursuant to applicable law shall constitute fines within the meaning of this
Section 7.7 and (iii) actions taken or omitted by the Indemnitee with respect to
an employee benefit plan in the performance of its duties for a purpose
reasonably believed by it to be in the interest of the participants and
beneficiaries of the plan shall be deemed to be for a purpose which is not
opposed to the best interests of the Partnership.

          F. No Personal Liability for Partners. In no event may an Indemnitee
subject any of the Partners to personal liability by reason of the
indemnification provisions set forth in this Agreement.

          G. Interested Transactions. An Indemnitee shall not be denied
indemnification in whole or in part under this Section 7.7 because the
Indemnitee had an interest in the transaction with respect to which the
indemnification applies if the transaction was otherwise permitted by the terms
of this Agreement.

          H. Benefit. The provisions of this Section 7.7 are for the benefit of
the Indemnitees, their heirs, successors, assigns and administrators and shall
not be deemed to create any rights for the benefit of any other Persons.

          Section 7.8 Liability of the General Partner

          A. General. Notwithstanding anything to the contrary set forth in this
Agreement, the General Partner shall not be liable for monetary damages to the
Partnership, any Partners or any Assignees for losses sustained or liabilities
incurred as a result of errors in judgment or of any act or omission if the
General Partner acted in good faith.

          B. No Obligation to Consider Separate Interests of Limited Partners.
The Limited Partners expressly acknowledge that the General Partner is acting on
behalf of the Partnership, other partnerships in which the General Partner
serves as general partner and the General Partner's shareholders collectively,
that the General Partner is under no obligation to consider the separate
interests of the Limited Partners (including, without limitation, the tax
consequences to Limited Partners or Assignees) in deciding whether to cause the
Partnership to take (or decline to take) any actions, and that the General
Partner shall not be liable for monetary damages for losses sustained,
liabilities incurred, or benefits not derived by Limited Partners in connection
with such decisions.

          C. Actions of Agents. Subject to its obligations and duties as General
Partner set forth in Section 7.1.A hereof, the General Partner may exercise any
of the powers granted to it by this Agreement and perform any of the duties
imposed upon it hereunder either directly or by or through its agents. The
General Partner shall not be

                                     - 25 -

<PAGE>

responsible for any misconduct or negligence on the part of any such agent
appointed by it in good faith.

          D. Effect of Amendment. Any amendment, modification or repeal of this
Section 7.8 or any provision hereof shall be prospective only and shall not in
any way affect the limitations on the General Partner's liability to the
Partnership and the Limited Partners under this Section 7.8 as in effect
immediately prior to such amendment, modification or repeal with respect to
claims arising from or relating to matters occurring, in whole or in part, prior
to such amendment, modification or repeal, regardless of when such claims may
arise or be asserted.

          Section 7.9 Other Matters Concerning the General Partner

          A. Reliance on Documents. The General Partner may rely and shall be
protected in acting or refraining from acting upon any resolution, certificate,
statement, instrument, opinion, report, notice, request, consent, order, bond,
debenture, or other paper or document believed by it in good faith to be genuine
and to have been signed or presented by the proper party or parties.

          B. Reliance on Advisors. The General Partner may consult with legal
counsel, accountants, appraisers, management consultants, investment bankers and
other consultants and advisers selected by it, and any act taken or omitted to
be taken in reliance upon the opinion of such Persons as to matters which the
General Partner reasonably believes to be within such Person's professional or
expert competence shall be conclusively presumed to have been done or omitted in
good faith and in accordance with such opinion.

          C. Action Through Agents. The General Partner shall have the right, in
respect of any of its powers or obligations hereunder, to act through any of its
duly authorized officers and a duly appointed attorney or attorneys-in-fact.
Each such attorney shall, to the extent provided by the General Partner in the
power of attorney, have full power and authority to do and perform all and every
act and duty which is permitted or required to be done by the General Partner
hereunder.

          D. Actions to Maintain REIT Status or Avoid Taxation of the General
Partner. Notwithstanding any other provisions of this Agreement or the Act, any
action of the General Partner on behalf of the Partnership or any decision of
the General Partner to refrain from acting on behalf of the Partnership,
undertaken in the good faith belief that such action or omission is necessary or
advisable in order (i) to protect the ability of CarrAmerica to continue to
qualify as a REIT or (ii) to allow CarrAmerica to avoid incurring any liability
for taxes under Section 857 or Section 4981 of the Code, is expressly authorized
under this Agreement and is deemed approved by all of the Limited Partners.

          Section 7.10 Reliance by Third Parties

          Notwithstanding anything to the contrary in this Agreement, any Person
dealing with the Partnership shall be entitled to assume that the General
Partner has full

                                     - 26 -

<PAGE>

power and authority, without the consent or approval of any other Partner or
Person, to encumber, sell or otherwise use in any manner any and all assets of
the Partnership, to enter into any contracts on behalf of the Partnership and to
take any and all actions on behalf of the Partnership, and such Person shall be
entitled to deal with the General Partner as if the General Partner were the
Partnership's sole party in interest, both legally and beneficially. Each
Limited Partner hereby waives any and all defenses or other remedies which may
be available against such Person to contest, negate or disaffirm any action of
the General Partner in connection with any such dealing. In no event shall any
Person dealing with the General Partner or its representatives be obligated to
ascertain that the terms of this Agreement have been complied with or to inquire
into the necessity or expedience of any act or action of the General Partner or
its representatives. Each and every certificate, document or other instrument
executed on behalf of the Partnership by the General Partner or its
representatives shall be conclusive evidence in favor of any and every Person
relying thereon or claiming thereunder that (i) at the time of the execution and
delivery of such certificate, document or instrument, this Agreement was in full
force and effect, (ii) the Person executing and delivering such certificate,
document or instrument was duly authorized and empowered to do so for and on
behalf of the Partnership, and (iii) such certificate, document or instrument
was duly executed and delivered in accordance with the terms and provisions of
this Agreement and is binding upon the Partnership.

                                  ARTICLE VIII
                   RIGHTS AND OBLIGATIONS OF LIMITED PARTNERS

          Section 8.1 Limitation of Liability

          The Limited Partners shall have no liability under this Agreement
except as expressly provided in this Agreement, including Section 10.5 hereof,
or under the Act.

          Section 8.2 Management of Business

          No Limited Partner or Assignee (other than the General Partner, any of
its Affiliates or any officer, director, employee, partner, agent or trustee of
the General Partner, the Partnership or any of their Affiliates, in their
capacity as such) shall take part in the operation, management or control
(within the meaning of the Act) of the Partnership's business, transact any
business in the Partnership's name or have the power to sign documents for or
otherwise bind the Partnership. The transaction of any such business by the
General Partner, any of its Affiliates or any officer, director, employee,
partner, agent or trustee of the General Partner, the Partnership or any of
their Affiliates, in their capacity as such, shall not affect, impair or
eliminate the limitations on the liability of the Limited Partners or Assignees
under this Agreement.

          Section 8.3 Outside Activities of Limited Partners

          Any Limited Partner (including, without limitation, LP Holdings and
any other Affiliate of the General Partner which is a Limited Partner in the
Partnership) and

                                     - 27 -

<PAGE>

any officer, director, employee, agent, trustee, Affiliate or shareholder of any
Limited Partner shall be entitled to and may have business interests and engage
in business activities in addition to those relating to the Partnership,
including business interests and activities in direct or indirect competition
with the Partnership. Neither the Partnership nor any Partners shall have any
rights by virtue of this Agreement in any business ventures of any Limited
Partner or Assignee. None of the Limited Partners nor any other Person shall
have any rights by virtue of this Agreement or the partnership relationship
established hereby in any business ventures of any other Person and such Person
shall have no obligation pursuant to this Agreement to offer any interest in any
such business ventures to the Partnership, any Limited Partner or any such other
Person, even if such opportunity is of a character which, if presented to the
Partnership, any Limited Partner or such other Person, could be taken by such
Person.

          Section 8.4 Return of Capital

          Except pursuant to the right of redemption set forth in Section 8.6,
no Limited Partner shall be entitled to the withdrawal or return of his Capital
Contribution, except to the extent of distributions made pursuant to this
Agreement or upon termination of the Partnership as provided herein. No Limited
Partner or Assignee shall have priority over any other Limited Partner or
Assignee either as to the return of Capital Contributions or, except to the
extent provided by Exhibit C hereof or as permitted by Section 4.2.B, or
otherwise expressly provided in this Agreement, as to profits, losses or
distributions.

          Section 8.5 Rights of Limited Partners Relating to the Partnership

          A. General. In addition to other rights provided by this Agreement or
by the Act, and except as limited by Section 8.5.C hereof, each Limited Partner
shall have the right, for a purpose reasonably related to such Limited Partner's
interest as a limited partner in the Partnership, upon written demand with a
statement of the purpose of such demand and at such Limited Partner's own
expense:

          (1)  to obtain a copy of the most recent annual and quarterly reports
               filed with the Securities and Exchange Commission by the General
               Partner pursuant to the Exchange Act;

          (2)  to obtain a copy of the Partnership's federal, state and local
               income tax returns for each Partnership Year;

          (3)  to obtain a current list of the name and last known business,
               residence or mailing address of each Partner;

          (4)  to obtain a copy of this Agreement and the Certificate and all
               amendments thereto, together with executed copies of all powers
               of attorney pursuant to which this Agreement, the Certificate and
               all amendments thereto have been executed; and

                                     - 28 -

<PAGE>

          (5)  to obtain true and full information regarding the amount of cash
               and a description and statement of any other property or services
               contributed by each Partner and which each Partner has agreed to
               contribute in the future, and the date on which each became a
               Partner.

          B. Notice of Change in Conversion Factor. The Partnership shall notify
each Limited Partner in writing of any change made to the Conversion Factor
within ten (10) Business Days of the date such change becomes effective.

          C. Notice of Extraordinary Transaction of CarrAmerica. CarrAmerica
shall not make any extraordinary distributions of cash or property to its
shareholders or effect a merger or sale of all or substantially all of its
assets without notifying the Limited Partners of its intention to make such
distribution or effect such merger or sale at least twenty (20) Business Days
prior to the record date to determine shareholders eligible to receive such
distribution or to vote upon the approval of such merger or sale.

          D. Confidentiality. Notwithstanding any other provision of this
Section 8.5, the General Partner may keep confidential from the Limited
Partners, for such period of time as the General Partner determines in its sole
and absolute discretion to be reasonable, any information that (i) the General
Partner believes to be in the nature of trade secrets or other information the
disclosure of which the General Partner in good faith believes is not in the
best interests of the Partnership or could damage the Partnership or its
business or (ii) the Partnership is required by law or by agreements with
unaffiliated third parties to keep confidential.

          Section 8.6 Redemption Right

          A. General. Subject to Section 8.6.C, on or after the date one (1)
year after each Partnership Unit is issued, the holder of such Partnership Unit
other than the General Partner, shall have the right (the "Redemption Right") to
require the Partnership to redeem on a Specified Redemption Date such
Partnership Unit at a redemption price equal to and in the form of the
Redemption Amount to be paid by the Partnership. The Redemption Right shall be
exercised pursuant to a Notice of Redemption delivered to the General Partner by
the Limited Partner who is exercising the redemption right (the "Redeeming
Partner"). A Limited Partner may not exercise the Redemption Right for less than
one thousand (1,000) Partnership Units or, if such Limited Partner holds less
than one thousand (1,000) Partnership Units, all of the Partnership Units held
by such Partner. The Redeeming Partner shall have no right, with respect to any
Partnership Units so redeemed, to receive any distributions paid after the
Specified Redemption Date.

          B. General Partner Assumption of Right. Notwithstanding the provisions
of Section 8.6.A, the General Partner may, in its sole and absolute discretion,
assume directly and satisfy a Redemption Right by paying to the Redeeming
Partner the Redemption Amount on the Specified Redemption Date, whereupon the
General Partner shall acquire the Partnership Units offered for redemption by
the Redeeming Partner and shall be treated for all purposes of this Agreement as
the owner of such Partnership Units.

                                     - 29 -

<PAGE>

In the event the General Partner shall exercise its right to satisfy the
Redemption Right in the manner described in the preceding sentence, the
Partnership shall have no obligation to pay any amount to the Redeeming Partner
with respect to such Redeeming Partner's exercise of the Redemption Right, and
each of the Redeeming Partner, the Partnership, and the General Partner shall
treat the transaction between the General Partner and the Redeeming Partner as a
sale of the Redeeming Partner's Partnership Units to the General Partner for
federal income tax purposes. Each Redeeming Partner agrees to execute such
documents as the General Partner may reasonably require in connection with the
issuance of REIT Shares upon exercise of the Redemption Right. Nothing contained
in this Section 8.6.B shall imply any right of the General Partner to require
any Limited Partner to exercise the Redemption Right afforded to such Limited
Partner pursuant to Section 8.6.A hereof.

          C. Payment of Accrued and Unpaid Distributions. On any Specified
Redemption Date occurring on or prior to the tenth anniversary of the date on
which the Redeeming Partner was admitted to the Partnership, the Partnership
shall pay to the Redeeming Partner the amount of all accrued and unpaid
distributions, if any, pursuant to Section 5.1. On any Specified Redemption Date
occurring after the tenth anniversary of the date on which the Redeeming Partner
was admitted to the Partnership, the Partnership shall pay to the Redeeming
Partner the amount of all accrued and unpaid distributions, if any, pursuant to
Section 5.1; provided, however, that no such payment of cumulated and unpaid
distributions shall be required if the Redemption Amount is at least 110% of the
sum of (i) the quotient obtained by dividing the Redeeming Partner's Capital
Contribution as set forth in the Partner Register by the number of the
Partnership Units (multiplied by the Conversion Factor) held by such Partner and
(ii) all accrued and unpaid distributions with respect to a Partnership Unit.

          D. Exceptions to Exercise of Redemption Right. Notwithstanding the
provisions of Sections 8.6.A and 8.6.B, a Partner shall not be entitled to
exercise the Redemption Right pursuant to Section 8.6.A if the delivery of REIT
Shares to such Partner on the Specified Redemption Date (i) would be prohibited
under the Articles of Incorporation or (ii) would be prohibited under applicable
federal or state securities laws or regulations.

          E. Redemption Amount Adjustment in Terminating Transaction.
Notwithstanding any other provision of this Agreement, in the event that
CarrAmerica Realty Corporation shall cease to exist for any reason (including,
without limitation, the merger of CarrAmerica Realty Corporation into another
entity or a sale of all or substantially all of the assets of CarrAmerica Realty
Corporation and distribution of the proceeds therefrom in liquidation) (referred
to as a "Termination Transaction"), the Redemption Amount thereafter shall be
equal to (i) the consideration received for one REIT Share in connection with
the Termination Transaction multiplied by (ii) the Conversion Factor at the time
of the Termination Transaction, which Redemption Amount the General Partner
shall pay upon an exercise of the Redemption Right, at its sole option, either
in the form of the consideration received by the CarrAmerica Realty Corporation
stockholders in connection with the Termination Transaction or in cash in an
amount equal to the value of such consideration at the time the Redemption Right
is exercised, as determined by the General Partner in good faith.

                                     - 30 -

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                                   ARTICLE IX
                     BOOKS, RECORDS, ACCOUNTING AND REPORTS

          Section 9.1 Records and Accounting

          The General Partner shall keep or cause to be kept at the principal
office of the Partnership appropriate books and records with respect to the
Partnership's business, including, without limitation, all books and records
necessary to provide to the Limited Partners any information, lists and copies
of documents required to be provided pursuant to Section 9.3 hereof. Any records
maintained by or on behalf of the Partnership in the regular course of its
business may be kept on, or be in the form of, punch cards, magnetic tape,
photographs, micrographics or any other information storage device, provided
that the records so maintained are convertible into clearly legible written form
within a reasonable period of time. The books of the Partnership shall be
maintained, for financial and tax reporting purposes, on an accrual basis in
accordance with generally accepted accounting principles.

          Section 9.2 Fiscal Year

          The fiscal year of the Partnership shall be the calendar year.

          Section 9.3 Reports

          A. Annual Reports. As soon as practicable, but in no event later than
the date on which CarrAmerica mails its annual report to its stockholders, the
General Partner shall make available to each Limited Partner, if requested, an
annual report, as of the close of the most recently ended Partnership Year,
containing financial statements of the Partnership, or of CarrAmerica if such
statements are prepared solely on a consolidated basis with CarrAmerica, for
such Partnership Year, presented in accordance with generally accepted
accounting principles, such statements to be audited by a nationally recognized
firm of independent public accountants selected by the General Partner.

          B. Quarterly Reports. If and to the extent that CarrAmerica mails
quarterly reports to its stockholders, as soon as practicable, but in no event
later than the date on which such reports are mailed, the General Partner shall
make available to each Limited Partner, if requested, a report containing
unaudited financial statements, as of the last day of such calendar quarter, of
the Partnership, or of CarrAmerica if such statements are prepared solely on a
consolidated basis with CarrAmerica, and such other information as may be
required by applicable law or regulation, or as the General Partner determines
to be appropriate.

                                     - 31 -

<PAGE>

                                    ARTICLE X
                                   TAX MATTERS

          Section 10.1 Preparation of Tax Returns

          The General Partner shall arrange for the preparation and timely
filing of all returns of Partnership income, gains, deductions, losses and other
items required of the Partnership for federal and state income tax purposes and
shall use all reasonable efforts to furnish, within ninety (90) days of the
close of each taxable year, the tax information reasonably required by Limited
Partners for federal and state income tax reporting purposes.

          Section 10.2 Tax Elections

          Except as otherwise provided herein, the General Partner shall, in its
sole and absolute discretion, determine whether to make any available election
pursuant to the Code; provided, however, that the General Partner shall make the
election under Section 754 of the Code in accordance with applicable regulations
thereunder. The General Partner shall have the right to seek to revoke any such
election (including, without limitation, the election under Section 754 of the
Code) upon the General Partner's determination in its sole and absolute
discretion that such revocation is in the best interests of the Partners.

          Section 10.3 Tax Matters Partner

          A. General. The General Partner shall be the "tax matters partner" of
the Partnership for federal income tax purposes. Pursuant to Section 6223(c)(3)
of the Code, upon receipt of notice from the IRS of the beginning of an
administrative proceeding with respect to the Partnership, the tax matters
partner shall furnish the IRS with the name, address and profit interest of each
of the Limited Partners and any Assignees; provided, however, that such
information is provided to the Partnership by the Limited Partners.

          B. Powers. The tax matters partner is authorized, but not required:

               (1)  to enter into any settlement with the IRS with respect to
                    any administrative or judicial proceedings for the
                    adjustment of Partnership items required to be taken into
                    account by a Partner for income tax purposes (such
                    administrative proceedings being referred to as a "tax
                    audit" and such judicial proceedings being referred to as
                    "judicial review"), and in the settlement agreement the tax
                    matters partner may expressly state that such agreement
                    shall bind all Partners, except that such settlement
                    agreement shall not bind any Partner (i) who (within the
                    time prescribed pursuant to the Code and Regulations) files
                    a statement with the IRS providing that the tax matters
                    partner shall not have the authority to enter into a

                                     - 32 -

<PAGE>

                    settlement agreement on behalf of such Partner or (ii) who
                    is a "notice partner" (as defined in Section 6231(a)(8) of
                    the Code) or a member of a "notice group" (as defined in
                    Section 6223(b)(2) of the Code);

               (2)  in the event that a notice of a final administrative
                    adjustment at the Partnership level of any item required to
                    be taken into account by a Partner for tax purposes (a
                    "final adjustment") is mailed to the tax matters partner, to
                    seek judicial review of such final adjustment, including the
                    filing of a petition for readjustment with the Tax Court or
                    the filing of a complaint for refund with the United States
                    Claims Court or the District Court of the United States for
                    the district in which the Partnership's principal place of
                    business is located;

               (3)  to intervene in any action brought by any other Partner for
                    judicial review of a final adjustment;

               (4)  to file a request for an administrative adjustment with the
                    IRS at any time and, if any part of such request is not
                    allowed by the IRS, to file an appropriate pleading
                    (petition or complaint) for judicial review with respect to
                    such request;

               (5)  to enter into an agreement with the IRS to extend the period
                    for assessing any tax which is attributable to any item
                    required to be taken into account by a Partner for tax
                    purposes, or an item affected by such item; and

               (6)  to take any other action on behalf of the Partners of the
                    Partnership in connection with any tax audit or judicial
                    review proceeding to the extent permitted by applicable law
                    or regulations.

          The taking of any action and the incurring of any expense by the tax
matters partner in connection with any such proceeding, except to the extent
required by law, is a matter in the sole and absolute discretion of the tax
matters partner and the provisions relating to indemnification of the General
Partner set forth in Section 7.7 of this Agreement shall be fully applicable to
the tax matters partner in its capacity as such.

          C. Reimbursement. The tax matters partner shall receive no
compensation for its services. All third party costs and expenses incurred by
the tax matters partner in performing his duties as such (including legal and
accounting fees and expenses) shall be borne by the Partnership. Nothing herein
shall be construed to restrict the Partnership from engaging an accounting firm
to assist the tax matters partner in discharging his duties hereunder, so long
as the compensation paid by the Partnership for such services is reasonable.

                                     - 33 -

<PAGE>

          Section 10.4 Organizational Expenses

          The Partnership shall elect to deduct expenses, if any, incurred by it
in organizing the Partnership ratably over a sixty (60) month period as provided
in Section 709 of the Code.

          Section 10.5 Withholding

          Each Limited Partner hereby authorizes the Partnership to withhold
from or pay on behalf of or with respect to such Limited Partner any amount of
federal, state, local, or foreign taxes that the General Partner determines that
the Partnership is required to withhold or pay with respect to any amount
distributable or allocable to such Limited Partner pursuant to this Agreement,
including, without limitation, any taxes required to be withheld or paid by the
Partnership pursuant to Section 1441, 1442, 1445, or 1446 of the Code. Any
amount paid on behalf of or with respect to a Limited Partner shall constitute a
loan by the Partnership to such Limited Partner, which loan shall be repaid by
such Limited Partner within fifteen (15) days after notice from the General
Partner that such payment must be made unless (i) the Partnership withholds such
payment from a distribution which would otherwise be made to the Limited Partner
or (ii) the General Partner determines, in its sole and absolute discretion,
that such payment may be satisfied out of the available funds of the Partnership
which would, but for such payment, be distributed to the Limited Partner. Any
amounts withheld pursuant to the foregoing clauses (i) or (ii) shall be treated
as having been distributed to such Limited Partner. Each Limited Partner hereby
unconditionally and irrevocably grants to the Partnership a security interest in
such Limited Partner's Partnership Interest to secure such Limited Partner's
obligation to pay to the Partnership any amounts required to be paid pursuant to
this Section 10.5. In the event that a Limited Partner fails to pay any amounts
owed to the Partnership pursuant to this Section 10.5 when due, the General
Partner may, in its sole and absolute discretion, elect to make the payment to
the Partnership on behalf of such defaulting Limited Partner, and in such event
shall be deemed to have loaned such amount to such defaulting Limited Partner
and shall succeed to all rights and remedies of the Partnership as against such
defaulting Limited Partner (including, without limitation, the right to receive
distributions). Any amounts payable by a Limited Partner hereunder shall bear
interest at the base rate on corporate loans at large United States money center
commercial banks, as published from time to time in the Wall Street Journal,
plus four (4) percentage points (but not higher than the maximum lawful rate)
from the date such amount is due (i.e., fifteen (15) days after demand) until
such amount is paid in full. Each Limited Partner shall take such actions as the
Partnership or the General Partner shall request in order to perfect or enforce
the security interest created hereunder.

                                     - 34 -

<PAGE>

                                   ARTICLE XI
                            TRANSFERS AND WITHDRAWALS

          Section 11.1 Transfer

          A. Definition. The term "transfer," when used in this Article XI with
respect to a Partnership Interest or a Partnership Unit, shall be deemed to
refer to a transaction by which the General Partner purports to assign all or
any part of its General Partnership Interest to another Person or by which a
Limited Partner purports to assign all or any part of its Limited Partnership
Interest to another Person, and includes a sale, assignment, gift, pledge,
encumbrance, hypothecation, mortgage, exchange or any other disposition by law
or otherwise. The term "transfer" when used in this Article XI does not include
any redemption or repurchase of Partnership Units by the Partnership from a
Partner (including the General Partner pursuant to Section 7.6.D) or acquisition
of Partnership Units from a Limited Partner by the General Partner pursuant to
Section 8.6 or otherwise.

          B. General. No Partnership Interest shall be transferred, in whole or
in part, except in accordance with the terms and conditions set forth in this
Article XI. Any transfer or purported transfer of a Partnership Interest not
made in accordance with this Article XI shall be null and void.

          Section 11.2 General Partner's Rights to Transfer

          A. Limited Partnership Interests. The General Partner may transfer all
or any portion of its Limited Partnership Interests, or any of the rights
associated with such Limited Partnership Interests, to any party without the
consent of the Partnership or any Partner (regardless of whether such transfer
triggers a termination of the Partnership for tax purposes under Section 708 of
the Code).

          B. General Partner Interest. The General Partner shall not be
permitted to transfer its General Partner Interest except (i) to an Affiliate of
the General Partner, (ii) in connection with a sale of all or substantially all
of the General Partner's assets, or (iii) in connection with a merger,
consolidation or other business combination involving the General partner;
provided, that the foregoing transfers shall be permitted if the Person
succeeding as General Partner pursuant to clause (i), (ii) or (iii) above
assumes all of the obligations of the General Partner under the Partnership
Agreement.

          Section 11.3 Limited Partners' Rights to Transfer

          A. General. Subject to the provisions of Sections 11.3.C, 11.3.D,
11.3.E and 11.4, a Limited Partner (other than LP Holdings) may transfer, with
or without the consent of the General Partner, all or any portion of his
Partnership Interest, or any of such Limited Partner's rights as a Limited
Partner, to an Immediate Family Member or an Affiliate of such Limited Partner,
provided that prior written notice of such proposed transfer is delivered to the
General Partner. No other transfers of a Limited Partnership

                                     - 35 -

<PAGE>

Interest may be effected without the consent of the General Partner, which
consent may be given or denied by the General Partner in its sole and absolute
discretion.

          B. Incapacitated Limited Partners. If a Limited Partner is subject to
Incapacity, the executor, administrator, trustee, committee, guardian,
conservator or receiver of such Limited Partner's estate shall have all the
rights of a Limited Partner, but not more rights than those enjoyed by other
Limited Partners for the purpose of settling or managing the estate and such
power as the Incapacitated Limited Partner possessed to transfer all or any part
of his or its interest in the Partnership. The Incapacity of a Limited Partner,
in and of itself, shall not dissolve or terminate the Partnership.

          C. No Transfers Violating Securities Laws. The General Partner may
prohibit any transfer of Partnership Units by a Limited Partner if, in the
opinion of legal counsel to the Partnership, such transfer would require filing
of a registration statement under the Securities Act or would otherwise violate
any federal, state or foreign securities laws or regulations applicable to the
Partnership or the Partnership Unit.

          D. No Transfers Affecting Tax Status of Partnership. No transfer of
Partnership Units by a Limited Partner may be made to any Person if (i) in the
opinion of legal counsel for the Partnership, it would result in the Partnership
being treated as an association taxable as a corporation for federal income tax
purposes, (ii) in the opinion of legal counsel for the Partnership, it would
adversely affect the ability of CarrAmerica to continue to qualify as a REIT or
would subject CarrAmerica to any additional taxes under Section 857 or Section
4981 of the Code, or (iii) such transfer is attempted to be effectuated through
an "established securities market" or a "secondary market (or the substantial
equivalent thereof)" within the meaning of Section 7704 of the Code.

          E. No Transfers to Holders of Nonrecourse Liabilities. No pledge,
assignment or other transfer of any Partnership Units may be made to a lender to
the Partnership or any Person who is related (within the meaning of Section
1.752-4(b) of the Regulations) to any lender to the Partnership whose loan
constitutes a Nonrecourse Liability without the consent of the General Partner,
in its sole and absolute discretion; provided that, as a condition to such
consent the lender will be required to enter into an arrangement with the
Partnership and the General Partner to exchange or redeem for the Redemption
Amount any Partnership Units in which a security interest is held simultaneously
with the time at which such lender would be deemed to be a partner in the
Partnership for purposes of allocating liabilities to such lender under Section
752 of the Code.

          Section 11.4 Substituted Limited Partners

          A. Consent of General Partner. No Limited Partner shall have the right
to substitute a transferee as a Limited Partner in his place. The General
Partner shall, however, have the right to consent to the admission of a
transferee of the interest of a Limited Partner pursuant to this Section 11.4 as
a Substituted Limited Partner, which consent may be given or withheld by the
General Partner in its sole and absolute discretion. The General Partner's
failure or refusal to permit a transferee of any such

                                     - 36 -

<PAGE>

interests to become a Substituted Limited Partner shall not give rise to any
cause of action against the Partnership or any Partner.

          B. Rights of Substituted Limited Partner. A transferee who has been
admitted as a Substituted Limited Partner in accordance with this Article XI
shall have all the rights and powers and be subject to all the restrictions and
liabilities of a Limited Partner under this Agreement. The admission of any
transferee as a Substituted Limited Partner shall be conditioned upon the
transferee executing and delivering to the Partnership an acceptance of all the
terms and conditions of this Agreement (including, without limitation, the
provisions of Section 15.11 and such other documents or instruments as may be
required to effect the admission).

          C. Amendment of the Partner Register. Upon the admission of a
Substituted Limited Partner, the General Partner shall amend the Partner
Register to reflect the name, address, number of Partnership Units, and
Percentage Interest of such Substituted Limited Partner and to eliminate or
adjust, if necessary, the name, address and interest of the predecessor of such
Substituted Limited Partner.

          Section 11.5 Assignees

          If the General Partner, in its sole and absolute discretion, does not
consent to the admission of any permitted transferee under Section 11.3 as a
Substituted Limited Partner, as described in Section 11.4, such transferee shall
be considered an Assignee for purposes of this Agreement. An Assignee shall be
entitled to all the rights of an assignee of a limited partnership interest
under the Act, including the right to receive distributions from the Partnership
and the share of Net Income, Net Losses, gain, loss and Recapture Income
attributable to the Partnership Units assigned to such transferee, but shall not
be deemed to be a holder of Partnership Units for any other purpose under this
Agreement, and shall not be entitled to vote such Partnership Units in any
matter presented to the Limited Partners for a vote (such Partnership Units
being deemed to have been voted on such matter in the same proportion as all
other Partnership Units held by Limited Partners are voted). In the event any
such transferee desires to make a further assignment of any such Partnership
Units, such transferee shall be subject to all the provisions of this Article XI
to the same extent and in the same manner as any Limited Partner desiring to
make an assignment of Partnership Units.

          Section 11.6 General Provisions

          A. Withdrawal of Limited Partner. No Limited Partner may withdraw from
the Partnership other than as a result of a permitted transfer of all of such
Limited Partner's Partnership Units in accordance with this Article XI or
pursuant to redemption of all of its Partnership Units under Section 8.6.

          B. Termination of Status as Limited Partner. Any Limited Partner who
shall transfer all of its Partnership Units in a transfer permitted pursuant to
this Article XI or pursuant to redemption of all of its Partnership Units under
Section 8.6 shall cease to be a Limited Partner.

                                     - 37 -

<PAGE>

          C. Timing of Transfers. Transfers pursuant to this Article XI may only
be made on the first day of a fiscal quarter of the Partnership, unless the
General Partner otherwise agrees.

          D. Allocations. If any Partnership Interest is transferred during any
quarterly segment of the Partnership's fiscal year in compliance with the
provisions of this Article XI or redeemed or transferred pursuant to Section
8.6, Net Income, Net Losses, each item thereof and all other items attributable
to such interest for such fiscal year shall be divided and allocated between the
transferor Partner and the transferee Partner by taking into account their
varying interests during the fiscal year in accordance with Section 706(d) of
the Code, using the interim closing of the books method. Solely for purposes of
making such allocations, each of such items for the calendar month in which the
transfer or redemption occurs shall be allocated to the Person who is a Partner
as of midnight on the last day of said month. All distributions of Available
Cash attributable to any Partnership Unit with respect to which the Partnership
Record Date is before the date of such transfer, assignment or redemption shall
be made to the transferor Partner or the Redeeming Partner, as the case may be,
and, in the case of a transfer or assignment other than a redemption, all
distributions of Available Cash thereafter attributable to such Partnership Unit
shall be made to the transferee Partner.

                                   ARTICLE XII
                              ADMISSION OF PARTNERS

          Section 12.1 Admission of Successor General Partner

          A successor to all of the General Partner's General Partner Interest
pursuant to Section 11.2 hereof who is proposed to be admitted as a successor
General Partner shall be admitted to the Partnership as the General Partner,
effective upon such transfer. Any such transferee shall carry on the business of
the Partnership without dissolution. In each case, the admission shall be
subject to the successor General Partner executing and delivering to the
Partnership an acceptance of all of the terms and conditions of this Agreement
and such other documents or instruments as may be required to effect the
admission.

          Section 12.2 Admission of Additional Limited Partners

          A. General. No Person shall be admitted as an Additional Limited
Partner without the consent of the General Partner, which consent may be given
or withheld in the General Partner's sole and absolute discretion. A Person who
makes a Capital Contribution to the Partnership in accordance with this
Agreement or who exercises an option to receive Partnership Units shall be
admitted to the Partnership as an Additional Limited Partner only with the
consent of the General Partner and only upon furnishing to the General Partner
(i) evidence of acceptance in form satisfactory to the General Partner of all of
the terms and conditions of this Agreement, including, without limitation, the
power of attorney granted in Section 15.11 hereof and (ii) such other

                                     - 38 -

<PAGE>

documents or instruments as may be required in the discretion of the General
Partner in order to effect such Person's admission as an Additional Limited
Partner. The admission of any Person as an Additional Limited Partner shall
become effective on the date upon which the name of such Person is recorded on
the books and records of the Partnership, following the consent of the General
Partner to such admission.

          B. Allocations to Additional Parties. If any Additional Limited
Partner is admitted to the Partnership on any day other than the first day of a
Partnership Year, then Net Income, Net Losses, each item thereof and all other
items allocable among Partners and Assignees for such Partnership Year shall be
allocated among such Additional Limited Partner and all other Partners and
Assignees by taking into account their varying interests during the Partnership
Year in accordance with Section 706(d) of the Code, using the interim closing of
the books method. Solely for purposes of making such allocations, each of such
items for the calendar month in which an admission of any Additional Limited
Partner occurs shall be allocated among all the Partners and Assignees including
such Additional Limited Partner. All distributions of Available Cash with
respect to which the Partnership Record Date is before the date of such
admission shall be made solely to Partners and Assignees other than the
Additional Limited Partner, and all distributions of Available Cash thereafter
shall be made to all the Partners and Assignees including such Additional
Limited Partner.

          Section 12.3 Amendment of Agreement and Certificate of Limited
                       Partnership

          For the admission to the Partnership of any Partner, the General
Partner shall take all steps necessary and appropriate under the Act to amend
the records of the Partnership and, if necessary, to prepare as soon as
practical an amendment of this Agreement (including an amendment of the Partner
Register) and, if required by law, shall prepare and file an amendment to the
Certificate and may for this purpose exercise the power of attorney granted
pursuant to Section 15.11 hereof.

                                  ARTICLE XIII
                           DISSOLUTION AND LIQUIDATION

          Section 13.1 Dissolution

          The Partnership shall not be dissolved by the admission of Substituted
Limited Partners or Additional Limited Partners or by the admission of a
successor General Partner in accordance with the terms of this Agreement. Upon
the withdrawal of the General Partner, any successor General Partner shall
continue the business of the Partnership. The Partnership shall dissolve, and
its affairs shall be wound up, upon the first to occur of any of the following
("Liquidating Events"):

          (i) the expiration of its term as provided in Section 2.4 hereof;

                                     - 39 -

<PAGE>

          (ii) an event of withdrawal of the General Partner, as defined in the
Act (other than an event of bankruptcy), unless, within ninety (90) days after
the withdrawal all the remaining Partners agree in writing to continue the
business of the Partnership and to the appointment, effective as of the date of
withdrawal, of a substitute General Partner;

          (iii) an election to dissolve the Partnership made by the General
Partner, in its sole and absolute discretion;

          (iv) entry of a decree of judicial dissolution of the Partnership
pursuant to the provisions of the Act;

          (v) the sale of all or substantially all of the assets and properties
of the Partnership in exchange for cash; or

          (vi) a final and non-appealable judgment is entered by a court of
competent jurisdiction ruling that the General Partner is bankrupt or insolvent,
or a final and non-appealable order for relief is entered by a court with
appropriate jurisdiction against the General Partner, in each case under any
federal or state bankruptcy or insolvency laws as now or hereafter in effect,
unless prior to the entry of such order or judgment all of the remaining
Partners agree in writing to continue the business of the Partnership and to the
appointment, effective as of a date prior to the date of such order or judgment,
of a substitute General Partner.

          Section 13.2 Winding Up

          A. General. Upon the occurrence of a Liquidating Event, the
Partnership shall continue solely for the purposes of winding up its affairs in
an orderly manner, liquidating its assets, and satisfying the claims of its
creditors and Partners. No Partner shall take any action that is inconsistent
with, or not necessary to or appropriate for, the winding up of the
Partnership's business and affairs. The General Partner (or, in the event there
is no remaining General Partner, any Person elected by a majority in interest of
the Limited Partners (the "Liquidator")) shall be responsible for overseeing the
winding up and dissolution of the Partnership and shall take full account of the
Partnership's liabilities and property and the Partnership property shall be
liquidated as promptly as is consistent with obtaining the fair value thereof,
and the proceeds therefrom (which may, to the extent determined by the General
Partner, include equity or other securities of the General Partner, CarrAmerica
or any other entity) shall be applied and distributed in the following order:

          (1)  First, to the payment and discharge of all of the Partnership's
               debts and liabilities to creditors other than the Partners;

          (2)  Second, to the payment and discharge of all of the Partnership's
               debts and liabilities to the General Partner;

          (3)  Third, to the payment and discharge of all of the Partnership's
               debts and liabilities to the Partners; and

                                     - 40 -

<PAGE>

          (4)  The balance, if any, to the Partners in accordance with their
               Capital Accounts, after giving effect to all contributions,
               distributions, and allocations for all periods.

The General Partner shall not receive any additional compensation for any
services performed pursuant to this Article XIII.

          B. Deferred Liquidation. Notwithstanding the provisions of Section
13.2.A hereof which require liquidation of the assets of the Partnership, but
subject to the order of priorities set forth therein, if prior to or upon
dissolution of the Partnership the Liquidator determines that an immediate sale
of part or all of the Partnership's assets would be impractical or would cause
undue loss to the Partners, the Liquidator may, in its sole and absolute
discretion, defer for a reasonable time the liquidation of any assets except
those necessary to satisfy liabilities of the Partnership (including to those
Partners as creditors) and/or distribute to the Partners, in lieu of cash, as
tenants in common and in accordance with the provisions of Section 13.2.A
hereof, undivided interests in such Partnership assets as the Liquidator deems
not suitable for liquidation. Any such distributions in kind shall be made only
if, in the good faith judgment of the Liquidator, such distributions in kind are
in the best interest of the Partners, and shall be subject to such conditions
relating to the disposition and management of such properties as the Liquidator
deems reasonable and equitable and to any agreements governing the operation of
such properties at such time. The Liquidator shall determine the fair market
value of any property distributed in kind using such reasonable method of
valuation as it may adopt.

          Section 13.3 Compliance with Timing Requirements of Regulations

          In the event the Partnership is "liquidated" within the meaning of
Regulations Section 1.704-1(b)(2)(ii)(g), distributions shall be made pursuant
to this Article XIII to the General Partner and Limited Partners who have
positive Capital Accounts in compliance with Regulations Section
1.704-1(b)(2)(ii)(b)(2). If any Partner has a deficit balance in his Capital
Account (after giving effect to all contributions, distributions and allocations
for all taxable years, including the year during which such liquidation occurs),
such Partner shall have no obligation to make any contribution to the capital of
the Partnership with respect to such deficit, and such deficit shall not be
considered a debt owed to the Partnership or to any other Person for any purpose
whatsoever. In the discretion of the General Partner, a pro rata portion of the
distributions that would otherwise be made to the General Partner and Limited
Partners pursuant to this Article XIII may be: (A) distributed to a trust
established for the benefit of the General Partner and Limited Partners for the
purposes of liquidating Partnership assets, collecting amounts owed to the
Partnership, and paying any contingent or unforeseen liabilities or obligations
of the Partnership or of the General Partner arising out of or in connection
with the Partnership (in which case the assets of any such trust shall be
distributed to the General Partner and Limited Partners from time to time, in
the reasonable discretion of the General Partner, in the same proportions as the
amount distributed to such trust by the Partnership would otherwise have been
distributed to the

                                     - 41 -

<PAGE>

General Partner and Limited Partners pursuant to this Agreement); or (B)
withheld to provide a reasonable reserve for Partnership liabilities (contingent
or otherwise) and to reflect the unrealized portion of any installment
obligations owed to the Partnership, provided that such withheld amounts shall
be distributed to the General Partner and Limited Partners as soon as
practicable.

          Section 13.4 Deemed Distribution and Recontribution

          Notwithstanding any other provision of this Article XIII, in the event
the Partnership is deemed liquidated within the meaning of Regulations Section
1.704-1(b)(2)(ii)(g) but no Liquidating Event has occurred, the Partnership's
property shall not be liquidated, the Partnership's liabilities shall not be
paid or discharged, and the Partnership's affairs shall not be wound up.
Instead, for federal income tax purposes and for purposes of maintaining Capital
Accounts pursuant to Exhibit B hereof, the Partnership shall be deemed to have
distributed the Property in kind to the General Partner and Limited Partners,
who shall be deemed to have assumed and taken such property subject to all
Partnership liabilities, all in accordance with their respective Capital
Accounts. Immediately thereafter, the General Partner and Limited Partners shall
be deemed to have recontributed the Partnership property in kind to the
Partnership, which shall be deemed to have assumed and taken such property
subject to all such liabilities.

          Section 13.5 Rights of Limited Partners

          Except as otherwise provided in this Agreement, each Limited Partner
shall look solely to the assets of the Partnership for the return of its Capital
Contributions and shall have no right or power to demand or receive property
other than cash from the Partnership. No Limited Partner shall have priority
over any other Limited Partner as to the return of its Capital Contributions,
distributions, or allocations.

          Section 13.6 Notice of Dissolution

          In the event a Liquidating Event occurs or an event occurs that would,
but for provisions of Section 13.1, result in a dissolution of the Partnership,
the General Partner shall, within thirty (30) days thereafter, provide written
notice thereof to each of the Partners and to all other parties with whom the
Partnership regularly conducts business (as determined in the discretion of the
General Partner) and shall publish notice thereof in a newspaper of general
circulation in each place in which the Partnership regularly conducts business
(as determined in the discretion of the General Partner).

          Section 13.7 Cancellation of Certificate of Limited Partnership

          Upon the completion of the liquidation of the Partnership cash and
property as provided in Section 13.2 hereof, the Partnership shall be terminated
and the Certificate and all qualifications of the Partnership as a foreign
limited partnership in jurisdictions

                                     - 42 -

<PAGE>

other than the State of Delaware shall be canceled and such other actions as may
be necessary to terminate the Partnership shall be taken.

          Section 13.8 Reasonable Time for Winding Up

          A reasonable time shall be allowed for the orderly winding up of the
business and affairs of the Partnership and the liquidation of its assets
pursuant to Section 13.2 hereof, in order to minimize any losses otherwise
attendant upon such winding-up, and the provisions of this Agreement shall
remain in effect among the Partners during the period of liquidation.

          Section 13.9 Waiver of Partition

          Each Partner hereby waives any right to partition of the Partnership
property.

          Section 13.10 Liability of Liquidator

          The Liquidator shall be indemnified and held harmless by the
Partnership from and against any and all claims, demands, liabilities, costs,
damages and causes of action of any nature whatsoever arising out of or
incidental to the Liquidator's taking of any action authorized under or within
the scope of this Agreement; provided, however, that the Liquidator shall not be
entitled to indemnification, and shall not be held harmless, where the claim,
demand, liability, cost, damage or cause of action at issue arises out of (i) a
matter entirely unrelated to the Liquidator's action or conduct pursuant to the
provisions of this Agreement, or, (ii) the proven willful misconduct or gross
negligence of the Liquidator.

                                   ARTICLE XIV
                  AMENDMENT OF PARTNERSHIP AGREEMENT; MEETINGS

          Section 14.1 Amendments

          A. General. Amendments to this Agreement may be proposed by the
General Partner or by any Limited Partners holding twenty-five percent (25%) or
more of the Partnership Interests. Following such proposal (except an amendment
pursuant to Section 14.1.B below), the General Partner shall submit any proposed
amendment to the Limited Partners. The General Partner shall seek the written
vote of the Partners on the proposed amendment or shall call a meeting to vote
thereon and to transact any other business that it may deem appropriate. For
purposes of obtaining a written vote, the General Partner may require a response
within a reasonable specified time, but not less than fifteen (15) days, and
failure to respond in such time period shall constitute a vote which is
consistent with the General Partner's recommendation with respect to the
proposal. Except as provided in Section 14.1.B, 14.1.C or 14.1.D, a proposed
amendment shall be adopted and be effective as an amendment hereto if it is
approved by the General Partner and it receives the Consent of Partners holding
a majority of the Percentage

                                     - 43 -

<PAGE>

Interests of the Limited Partners (including Limited Partnership Interests held
by the General Partner).

          B. Amendments Not Requiring Limited Partner Approval. Notwithstanding
Section 14.1.A, the General Partner shall have the power, without the consent of
the Limited Partners, to amend this Agreement as may be required to facilitate
or implement any of the following purposes:

          (1)  to add to the obligations of the General Partner or surrender any
               right or power granted to the General Partner or any Affiliate of
               the General Partner for the benefit of the Limited Partners;

          (2)  to reflect the admission, substitution, termination, or
               withdrawal of Partners in accordance with this Agreement;

          (3)  to set forth the designations, rights, powers, duties, and
               preferences of the holders of any additional Partnership
               Interests issued pursuant to Section 4.2.A or Section 4.2.B
               hereof;

          (4)  to modify the term of the Partnership as set forth in Section
               2.5;

          (5)  to reflect a change that does not adversely affect the Limited
               Partners in any material respect, or to cure any ambiguity,
               correct or supplement any provision in this Agreement not
               inconsistent with law or with other provisions, or make other
               changes with respect to matters arising under this Agreement that
               will not be inconsistent with law or with the provisions of this
               Agreement; and

          (6)  to satisfy any requirements, conditions, or guidelines contained
               in any order, directive, opinion, ruling or regulation of a
               federal or state agency or contained in federal or state law.

The General Partner shall provide notice to the Limited Partners when any action
under this Section 14.1.B has been taken.

          C. Amendments Requiring Limited Partner Approval (Excluding General
Partner). Notwithstanding Section 14.1.A hereof, the General Partner shall not
amend Section 4.2.B, Article V, Article VI, Section 7.6, Section 7.8, Section
8.6 or Section 11.2 without the Consent of a majority of the Percentage
Interests of the Limited Partners, excluding Limited Partnership Interests held
by LP Holdings.

          D. Amendments Requiring Unanimous Limited Partner Approval.
Notwithstanding anything in this Section 14.1 to the contrary, this Agreement
shall not be amended without the Consent of each Partner adversely affected if
such amendment would (i) convert a Limited Partner's interest in the Partnership
into a general partner's interest, (ii) modify the limited liability of a
Limited Partner, or (iii) amend this Section 14.1.D.

                                     - 44 -

<PAGE>

          Section 14.2 Meetings of the Partners

          A. General. Meetings of the Partners may be called by the General
Partner and shall be called upon the receipt by the General Partner of a written
request by Limited Partners holding twenty-five percent (25%) or more of the
Partnership Interests. The call shall state the nature of the business to be
transacted. Notice of any such meeting shall be given to all Partners not less
than seven (7) days nor more than thirty (30) days prior to the date of such
meeting. Partners may vote in person or by proxy at such meeting. Whenever the
vote or Consent of Partners is permitted or required under this Agreement, such
vote or Consent may be given at a meeting of Partners or may be given in
accordance with the procedure prescribed in Section 14.1.A hereof. Except as
otherwise expressly provided in this Agreement, the Consent of holders of a
majority of the Percentage Interests held by Limited Partners (including LP
Holdings and any other Affiliate of the General Partner) shall control.

          B. Actions Without a Meeting. Any action required or permitted to be
taken at a meeting of the Partners may be taken without a meeting if a written
consent setting forth the action so taken is signed by a majority of the
Percentage Interests of the Partners (or such other percentage as is expressly
required by this Agreement). Such consent may be in one instrument or in several
instruments, and shall have the same force and effect as a vote of a majority of
the Percentage Interests of the Partners (or such other percentage as is
expressly required by this Agreement). Such consent shall be filed with the
General Partner. An action so taken shall be deemed to have been taken at a
meeting held on the effective date so certified.

          C. Proxy. Each Limited Partner may authorize any Person or Persons to
act for him by proxy on all matters in which a Limited Partner is entitled to
participate, including waiving notice of any meeting, or voting or participating
at a meeting. Every proxy must be signed by the Limited Partner or his
attorney-in-fact. No proxy shall be valid after the expiration of eleven (11)
months from the date thereof unless otherwise provided in the proxy. Every proxy
shall be revocable at the pleasure of the Limited Partner executing it.

          D. Conduct of Meeting. Each meeting of Partners shall be conducted by
the General Partner or such other Person as the General Partner may appoint
pursuant to such rules for the conduct of the meeting as the General Partner or
such other Person deems appropriate.

                                   ARTICLE XV
                               GENERAL PROVISIONS

          Section 15.1 Addresses and Notice

          Any notice, demand, request or report required or permitted to be
given or made to a Partner or Assignee under this Agreement shall be in writing
and shall be deemed given or made when delivered in person or when sent by first
class United States mail or by other means of written communication to the
Partner or Assignee at the address

                                     - 45 -

<PAGE>

set forth in the Partner Register or such other address as the Partners shall
notify the General Partner in writing.

          Section 15.2 Titles and Captions

          All article or section titles or captions in this Agreement are for
convenience only. They shall not be deemed part of this Agreement and in no way
define, limit, extend or describe the scope or intent of any provisions hereof.
Except as specifically provided otherwise, references to "Articles" and
"Sections" are to Articles and Sections of this Agreement.

          Section 15.3 Pronouns and Plurals

          Whenever the context may require, any pronoun used in this Agreement
shall include the corresponding masculine, feminine or neuter forms, and the
singular form of nouns, pronouns and verbs shall include the plural and vice
versa.

          Section 15.4 Further Action

          The parties shall execute and deliver all documents, provide all
information and take or refrain from taking action as may be necessary or
appropriate to achieve the purposes of this Agreement.

          Section 15.5 Binding Effect

          This Agreement shall be binding upon and inure to the benefit of the
parties hereto and their heirs, executors, administrators, successors, legal
representatives and permitted assigns.

          Section 15.6 Creditors

          None of the provisions of this Agreement shall be for the benefit of,
or shall be enforceable by, any creditor of the Partnership.

          Section 15.7 Waiver

          No failure by any party to insist upon the strict performance of any
covenant, duty, agreement or condition of this Agreement or to exercise any
right or remedy consequent upon a breach thereof shall constitute waiver of any
such breach or any other covenant, duty, agreement or condition.

                                     - 46 -

<PAGE>

          Section 15.8 Counterparts

          This Agreement may be executed in counterparts, all of which together
shall constitute one agreement binding on all the parties hereto,
notwithstanding that all such parties are not signatories to the original or the
same counterpart. Each party shall become bound by this Agreement immediately
upon affixing its signature hereto.

          Section 15.9 Applicable Law

          This Agreement shall be construed and enforced in accordance with and
governed by the laws of the State of Delaware, without regard to the principles
of conflicts of law.

          Section 15.10 Invalidity of Provisions

          If any provision of this Agreement is or becomes invalid, illegal or
unenforceable in any respect, the validity, legality and enforceability of the
remaining provisions contained herein shall not be affected thereby.

          Section 15.11 Power of Attorney

          A. General. Each Limited Partner and each Assignee who accepts Units
(or any rights, benefits or privileges associated therewith) is deemed
irrevocably to constitute and appoint the General Partner, any Liquidator, and
authorized officers and attorneys-in-fact of each, and each of those acting
singly, in each case with full power of substitution, as its true and lawful
agent and attorney-in-fact, with full power and authority in its name, place and
stead to:

          (1)  execute, swear to, acknowledge, deliver, file and record in the
               appropriate public offices (a) all certificates, documents and
               other instruments (including, without limitation, this Agreement
               and the Certificate and all amendments or restatements thereof)
               that the General Partner or any Liquidator deems appropriate or
               necessary to form, qualify or continue the existence or
               qualification of the Partnership as a limited partnership (or a
               partnership in which the limited partners have limited liability)
               in the State of Delaware and in all other jurisdictions in which
               the Partnership may conduct business or own property, (b) all
               instruments that the General Partner or any Liquidator deems
               appropriate or necessary to reflect any amendment, change,
               modification or restatement of this Agreement in accordance with
               its terms, (c) all conveyances and other instruments or documents
               that the General Partner or any Liquidator deems appropriate or
               necessary to reflect the dissolution and liquidation of the
               Partnership pursuant to the terms of this Agreement, including,
               without limitation, a certificate of cancellation, (d) all
               instruments relating to the admission, withdrawal, removal or
               substitution of any Partner pursuant to, or other events
               described in,

                                     - 47 -

<PAGE>

               Article XI, XII or XIII hereof or the Capital Contribution of any
               Partner, and (e) all certificates, documents and other
               instruments relating to the determination of the rights,
               preferences and privileges of Partnership Interests; and

          (2)  execute, swear to, acknowledge and file all ballots, consents,
               approvals, waivers, certificates and other instruments
               appropriate or necessary, in the sole and absolute discretion of
               the General Partner or any Liquidator, to make, evidence, give,
               confirm or ratify any vote, consent, approval, agreement or other
               action which is made or given by the Partners hereunder or is
               consistent with the terms of this Agreement or appropriate or
               necessary, in the sole discretion of the General Partner or any
               Liquidator, to effectuate the terms or intent of this Agreement.

          Nothing contained herein shall be construed as authorizing the General
Partner or any Liquidator to amend this Agreement except in accordance with
Article XIV hereof or as may be otherwise expressly provided for in this
Agreement.

          B. Irrevocable Nature. The foregoing power of attorney is hereby
declared to be irrevocable and a power coupled with an interest, in recognition
of the fact that each of the Partners will be relying upon the power of the
General Partner or any Liquidator to act as contemplated by this Agreement in
any filing or other action by it on behalf of the Partnership, and it shall
survive and not be affected by the subsequent Incapacity of any Limited Partner
or Assignee and the transfer of all or any portion of such Limited Partner's or
Assignee's Partnership Units and shall extend to such Limited Partner's or
Assignee's heirs, successors, assigns and personal representatives. Each such
Limited Partner or Assignee hereby agrees to be bound by any representation made
by the General Partner or any Liquidator, acting in good faith pursuant to such
power of attorney; and each such Limited Partner or Assignee hereby waives any
and all defenses which may be available to contest, negate or disaffirm the
action of the General Partner or any Liquidator, taken in good faith under such
power of attorney. Each Limited Partner or Assignee shall execute and deliver to
the General Partner or the Liquidator, within fifteen (15) days after receipt of
the General Partner's or Liquidator's request therefor, such further
designation, powers of attorney and other instruments as the General Partner or
the Liquidator, as the case may be, deems necessary to effectuate this Agreement
and the purposes of the Partnership.

          Section 15.12 Entire Agreement

          This Agreement contains the entire understanding and agreement among
the Partners with respect to the subject matter hereof and supersedes any prior
written oral understandings or agreements among them with respect thereto.

                                     - 48 -

<PAGE>

          Section 15.13 No Rights as Stockholders

          Nothing contained in this Agreement shall be construed as conferring
upon the holders of the Partnership Units any rights whatsoever as stockholders
of the General Partner or CarrAmerica, including, without limitation, any right
to receive dividends or other distributions made to shareholders of the General
Partner or CarrAmerica or to vote or to consent or receive notice as
shareholders in respect to any meeting of shareholders for the election of
directors of the General Partner or CarrAmerica or any other matter.

          Section 15.14 Rights and Duties of CarrAmerica and Affiliates of the
                        General Partner

          A. Dividends on REIT Shares. Notwithstanding anything contained in
this Agreement to the contrary, any reference herein to dividends paid or
payable by CarrAmerica on REIT Shares shall be deemed to be a reference to such
dividends as have been paid or are payable by CarrAmerica.

          B. Liability of CarrAmerica. Notwithstanding anything to the contrary
set forth in this Agreement, CarrAmerica shall not be liable for monetary
damages to the Partnership, any Partners or any Assignees for losses sustained
or liabilities incurred as a result of errors in judgment or of any act or
omission of the General Partner.

          C. No Redemptions by LP Holdings. Notwithstanding anything to the
contrary set forth in this Agreement, LP Holdings shall not be entitled to
exercise the Redemption Right with respect to any Limited Partnership Units held
by it.

          D. Assumption of Redemption Right by CarrAmerica. Notwithstanding
anything to the contrary set forth in this Agreement, any assumption of a
Redemption Right by the General Partner pursuant to Section 8.6.B hereof shall
be deemed to be an assumption of such Redemption Right by CarrAmerica, and all
rights and duties of the General Partner with respect to such Redemption Right
shall be deemed and treated as the rights and duties of CarrAmerica. In the
event that CarrAmerica determines to pay the Redeeming Partner the Redemption
Amount in the form of REIT Shares, the total number of REIT Shares to be paid to
the Redeeming Partner in exchange for that Redeeming Partner's Partnership Units
shall be the applicable REIT Shares Amount multiplied by the number of
Partnership Units being redeemed. In the event this product is not a whole
number, the Redeeming Partnership shall be paid (x) that number of REIT Shares
which equals the nearest whole number less than such product plus (y) an amount
of cash which CarrAmerica determines, in its sole and absolute discretion, to
represent the fair value of the remaining fractional REIT Share which would
otherwise be payable to the Redeeming Partner.

          E. Transfer Rights. Notwithstanding anything to the contrary set forth
in this Agreement, an Affiliate of the General Partner (including, without
limitation, LP Holdings and CarrAmerica) may transfer all or any portion of its
Limited Partnership Interests, or any of the rights associated with such Limited
Partnership Interests, to any party without the consent of the Partnership or
any Partner (regardless of whether such

                                     - 49 -

<PAGE>

transfer triggers a termination of the Partnership for tax purposes under
Section 708 of the Code).

                                     - 50 -

<PAGE>

          IN WITNESS WHEREOF, the parties hereto have executed this Agreement as
of the date first written above.

                                  GENERAL PARTNER:

                                  CARRAMERICA REALTY GP HOLDINGS, INC.


                                  By:    /s/ Linda A. Madrid
                                         ---------------------------------------
                                  Name:  Linda A. Madrid
                                  Title: Ex. Vice President & Corp. Secretary


                                  LIMITED PARTNERS:


                                  By:    CarrAmerica Realty GP
                                         Holdings, Inc., as Attorney-in-
                                         Fact for the Limited Partners


                                  By:    /s/ Linda A. Madrid
                                         ---------------------------------------
                                  Name:  Linda A. Madrid
                                  Title: Ex. Vice President & Corp. Secretary


                                  CARRAMERICA REALTY CORPORATION,
                                  solely for purposes of Sections 7.4, 7.5, 7.7,
                                  7.8, 8.6,11.2, 15.13 and 15.14 of this
                                  Agreement


                                  By:    /s/ Linda A. Madrid
                                         ---------------------------------------
                                  Name:  Linda A. Madrid
                                  Title: Managing Director - General
                                          Counsel & Corp. Secretary

                                     - 51 -

<PAGE>

                                    EXHIBIT A
                       PARTNERS AND PARTNERSHIP INTERESTS

                              INTENTIONALLY OMITTED

<PAGE>

                                    EXHIBIT B
                           CAPITAL ACCOUNT MAINTENANCE

1.        Capital Accounts of the Partners

          A. The Partnership shall maintain for each Partner a separate Capital
Account in accordance with the rules of Regulations Section l.704-l(b)(2)(iv).
Such Capital Account shall be increased by (i) the amount of all Capital
Contributions and any other deemed contributions made by such Partner to the
Partnership pursuant to this Agreement and (ii) all items of Partnership income
and gain (including income and gain exempt from tax) computed in accordance with
Section 1.B hereof and allocated to such Partner pursuant to Section 6.1.A of
the Agreement and Exhibit C hereof, and decreased by (x) the amount of cash or
Agreed Value of all actual and deemed distributions of cash or property made to
such Partner pursuant to this Agreement and (y) all items of Partnership
deduction and loss computed in accordance with Section 1.B hereof and allocated
to such Partner pursuant to Section 6.1.B of the Agreement and Exhibit C hereof.

          B. For purposes of computing the amount of any item of income, gain,
deduction or loss to be reflected in the Partners' Capital Accounts, unless
otherwise specified in this Agreement, the determination, recognition and
classification of any such item shall be the same as its determination,
recognition and classification for federal income tax purposes determined in
accordance with Section 703(a) of the Code (for this purpose all items of
income, gain, loss or deduction required to be stated separately pursuant to
Section 703(a) (1) of the Code shall be included in taxable income or loss),
with the following adjustments:

          (1)  Except as otherwise provided in Regulations Section
               1.704-1(b)(2)(iv)(m), the computation of all items of income,
               gain, loss and deduction shall be made without regard to any
               election under Section 754 of the Code which may be made by the
               Partnership, provided that the amounts of any adjustments to the
               adjusted bases of the assets of the Partnership made pursuant to
               Section 734 of the Code as a result of the distribution of
               property by the Partnership to a Partner (to the extent that such
               adjustments have not previously been reflected in the Partners'
               Capital Accounts) shall be reflected in the Capital Accounts of
               the Partners in the manner and subject to the limitations
               prescribed in Regulations Section l.704-1(b)(2)(iv) (m)(4).

          (2)  The computation of all items of income, gain, and deduction shall
               be made without regard to the fact that items described in
               Sections 705(a)(l)(B) or 705(a)(2)(B) of the Code are not
               includable gross income or are neither currently deductible nor
               capitalized for federal income tax purposes.

          (3)  Any income, gain or loss attributable to the taxable disposition
               of any Partnership property shall be determined as if the
               adjusted basis of such property as of such date of disposition
               were equal in amount to

<PAGE>

               the Partnership's Carrying Value with respect to such property as
               of such date.

          (4)  In lieu of the depreciation, amortization, and other cost
               recovery deductions taken into account in computing such taxable
               income or loss, there shall be taken into account Depreciation
               for such fiscal year.

          (5)  In the event the Carrying Value of any Partnership Asset is
               adjusted pursuant to Section 1.D hereof, the amount of any such
               adjustment shall be taken into account as gain or loss from the
               disposition of such asset.

          (6)  Any items specially allocated under Section 2 of Exhibit C hereof
               shall not be taken into account.

          C. Generally, a transferee (including any Assignee) of a Partnership
Unit shall succeed to a pro rata portion of the Capital Account of the
transferor; provided, however, that, if the transfer causes a termination of the
Partnership under Section 708(b)(l)(B) of the Code, the Partnership's properties
shall be deemed, solely for federal income tax purposes, to have been
distributed in liquidation of the Partnership to the holders of the Partnership
units (including transferee) and recontributed by such Persons in reconstitution
of the Partnership. In such event, the Carrying Values of the Partnership
properties shall be adjusted immediately prior to such deemed distribution
pursuant to Section 1.D(2) hereof. The Capital Accounts of such reconstituted
Partnership shall be maintained in accordance with the principles of this
Exhibit B.

          D.   (1) Consistent with the provisions of Regulations Section
               1.704-1(b)(2)(iv)(f), and as provided in Section 1.D(2), the
               Carrying Values of all Partnership assets shall be adjusted
               upward or downward to reflect any Unrealized Gain or Unrealized
               Loss attributable to such Partnership property, as of the times
               of the adjustments provided in Section 1.D(2) hereof, as if such
               Unrealized Gain or Unrealized Loss had been recognized on an
               actual sale of each such property and allocated pursuant to
               Section 6.1 of the Agreement.

          (2)  Such adjustments shall be made as of the following times: (a)
               immediately prior to the acquisition of an additional interest in
               the Partnership by any new or existing Partner in exchange for
               more than a de minimis Capital Contribution; (b) immediately
               prior to the distribution by the Partnership to a Partner of more
               than a de minimis amount of property as consideration for an
               interest in the Partnership; and (c) immediately prior to the
               liquidation of the Partnership within the meaning of Regulations
               Section 1.704-l(b)(2)(ii)(g), provided however that adjustments
               pursuant to clauses (a) and (b) above shall be made only if the
               General Partner determines that such adjustments are necessary or
               appropriate to

                                     - 2 -

<PAGE>

               reflect the relative economic interests of the Partners in the
               Partnership.

          (3)  In accordance with Regulations Section 1.704- l(b)(2)(iv)(e), the
               Carrying Value of Partnership assets distributed in kind shall be
               adjusted upward or downward to reflect any Unrealized Gain or
               Unrealized Loss attributable to such Partnership property, as of
               the time any such asset is distributed.

          (4)  In determining Unrealized Gain or Unrealized Loss for purposes of
               this Exhibit B, the aggregate cash amount and fair market value
               of all Partnership assets (including cash or cash equivalents)
               shall be determined by the General Partner using such reasonable
               method of valuation as it may adopt, or in the case of a
               liquidating distribution pursuant to Article XIII of the
               Agreement, shall be determined and allocated by the Liquidator
               using such reasonable methods of valuation as it may adopt. The
               General Partner, or the Liquidator, as the case may be, shall
               allocate such aggregate fair market value among the assets of the
               Partnership in such manner as it determines in its sole and
               absolute discretion to arrive at a fair market value for
               individual properties.

          E. The provisions of the Agreement (including this Exhibit B and the
other Exhibits to the Agreement) relating to the maintenance of Capital Accounts
are intended to comply with Regulations Section 1.704-1(b), and shall be
interpreted and applied in a manner consistent with such Regulations. In the
event the General Partner shall determine that it is prudent to modify the
manner in which the Capital Accounts, or any debits or credits thereto
(including, without limitation, debits or credits relating to liabilities which
are secured by contributed or distributed property or which are assumed by the
Partnership, the General Partner, or the Limited Partners) are computed in order
to comply with such Regulations, the General Partner may make such modification
without regard to Article XIV of the Agreement, provided that it is not likely
to have a material effect on the amounts distributable to any Person pursuant to
Article XIII of the Agreement upon the dissolution of the Partnership. The
General Partner also shall (i) make any adjustments that are necessary or
appropriate to maintain equality between the Capital Accounts of the Partners
and the amount of Partnership capital reflected on the Partnership's balance
sheet, as computed for book purposes, in accordance with Regulations Section
l.704-l(b)(2)(iv)(q), and (ii) make any appropriate modifications in the event
unanticipated events might otherwise cause this Agreement not to comply with
Regulations Section l.704-1(b).

2.        No Interest

          No interest shall be paid by the Partnership on Capital Contributions
or on balances in Partners' Capital Accounts.

3.        No Withdrawal

                                     - 3 -

<PAGE>

          No Partner shall be entitled to withdraw any part of its Capital
Contribution or Capital Account or to receive any distribution from the
Partnership, except as provided in Articles IV, V, VII and XIII of the
Agreement.

                                     - 4 -

<PAGE>

                                    EXHIBIT C
                            SPECIAL ALLOCATION RULES

1.        Special Allocation Rules.

          Notwithstanding any other provision of the Agreement or this Exhibit
C, the following special allocations shall be made in the following order:

          A. Minimum Gain Chargeback. Notwithstanding the provisions of Section
6.1 of the Agreement or any other provisions of this Exhibit C, if there is a
net decrease in Partnership Minimum Gain during any Partnership Year, each
Partner shall be specially allocated items of Partnership income and gain for
such year (and, if necessary, subsequent years) in an amount equal to such
Partner's share of the net decrease in Partnership Minimum Gain, as determined
under Regulations Section 1.704-2(g). Allocations pursuant to the previous
sentence shall be made in proportion to the respective amounts required to be
allocated to each Partner pursuant thereto. The items to be so allocated shall
be determined in accordance with Regulations Section 1.704-2(f) (6). This
Section 1.A is intended to comply with the minimum gain chargeback requirements
in Regulations Section 1.704-2(f) and for purposes of this Section 1.A only,
each Partner's Adjusted Capital Account Deficit shall be determined prior to any
other allocations pursuant to Section 6.1 of this Agreement with respect to such
Partnership Year and without regard to any decrease in Partner Minimum Gain
during such Partnership Year.

          B. Partner Minimum Gain Chargeback. Notwithstanding any other
provision of Section 6.1 of this Agreement or any other provisions of this
Exhibit C (except Section 1.A hereof), if there is a net decrease in Partner
Minimum Gain attributable to a Partner Nonrecourse Debt during any Partnership
Year, each Partner who has a share of the Partner Minimum Gain attributable to
such Partner Nonrecourse Debt, determined in accordance with Regulations Section
1.704-2(i) (5), shall be specially allocated items of Partnership income and
gain for such year (and, if necessary, subsequent years) in an amount equal to
such Partner's share of the net decrease in Partner Minimum Gain attributable to
such Partner Nonrecourse Debt, determined in accordance with Regulations Section
1.704-2(i) (5). Allocations pursuant to the previous sentence shall be made in
proportion to the respective amounts required to be allocated to each General
Partner and Limited Partner pursuant thereto. The items to be so allocated shall
be determined in accordance with Regulations Section 1.704-2(i) (4). This
Section 1.B is intended to comply with the minimum gain chargeback requirement
in such Section of the Regulations and shall be interpreted consistently
therewith. Solely for purposes of this Section 1.B, each Partner's Adjusted
Capital Account Deficit shall be determined prior to any other allocations
pursuant to Section 6.1 of the Agreement or this Exhibit with respect to such
Partnership Year, other than allocations pursuant to Section 1.A hereof.

          C. Qualified Income Offset. In the event any Partner unexpectedly
receives any adjustments, allocations or distributions described in Regulations
Sections 1.704-l(b)(2)(ii)(d)(4), l.704-1(b)(2)(ii)(d)(5), or 1.704-
l(b)(2)(ii)(d)(6), and after giving effect to the allocations required under
Sections 1.A and 1.B hereof, such Partner has an Adjusted Capital Account
Deficit, items of Partnership income and gain (consisting of a pro

<PAGE>

rata portion of each item of Partnership income, including gross income and gain
for the Partnership Year) and shall be specifically allocated to such Partner in
an amount and manner sufficient to eliminate, to the extent required by the
Regulations, its Adjusted Capital Account Deficit created by such adjustments,
allocations or distributions as quickly as possible. This Section 1.C is
intended to constitute a "qualified income offset" under Regulations Section
1.704-1(b)(2)(ii)(d) and shall be interpreted consistently therewith.

          D. Nonrecourse Deductions. Nonrecourse Deductions for any Partnership
Year shall be allocated to the Partners in accordance with their respective
Percentage Interests. If the General Partner determines in its good faith
discretion that the Partnership's Nonrecourse Deductions must be allocated in a
different ratio to satisfy the safe harbor requirements of the Regulations
promulgated under Section 704(b) of the Code, the General Partner is authorized,
upon notice to the Limited Partners, to revise the prescribed ratio for such
Partnership Year to the numerically closest ratio which would satisfy such
requirements.

          E. Partner Nonrecourse Deductions. Any Partner Nonrecourse Deductions
for any Partnership Year shall be specially allocated to the Partner who bears
the economic risk of loss with respect to the Partner Nonrecourse Debt to which
such Partner Nonrecourse Deductions are attributable in accordance with
Regulations Sections 1.704-2(b)(4) and 1.704-2(i).

          F. Code Section 754 Adjustments. To the extent an adjustment to the
adjusted tax basis of any Partnership asset pursuant to Section 734(b) or 743(b)
of the Code is required, pursuant to Regulations Section 1.704-l(b)(2)(iv)(m),
to be taken into account in determining Capital Accounts, the amount of such
adjustment to the Capital Accounts shall be treated as an item of gain (if the
adjustment increases the basis of the asset) or loss (if the adjustment
decreases such basis), and such item of gain or loss shall be specially
allocated to the Partners in a manner consistent with the manner in which their
Capital Accounts are required to be adjusted pursuant to such Section of the
Regulations.

2.        Allocations for Tax Purposes

          A. Except as otherwise provided in this Section 2, for federal income
tax purposes, each item of income, gain, loss and deduction shall be allocated
among the Partners in the same manner as its correlative item of "book" income,
gain, loss or deduction is allocated pursuant to Section 6.1 of the Agreement
and Section 1 of this Exhibit C.

          B. In an attempt to eliminate Book-Tax Disparities attributable to a
Contributed Property or Adjusted Property, items of income, gain, loss, and
deduction shall be allocated for federal income tax purposes among the Partners
as follows:

          (1)  (a)  In the case of a Contributed Property, such items
                    attributable thereto shall be allocated among the Partners
                    consistent with the principles of Section 704(c) of the Code
                    to take into account the variation between the 704(c) Value
                    of such property and its

                                     - 2 -

<PAGE>

                    adjusted basis at the time of contribution (taking into
                    account Section 2.C of this Exhibit C); and

               (b)  any item of Residual Gain or Residual Loss attributable to a
                    Contributed Property shall be allocated among the Partners
                    in the same manner as its correlative item of "book" gain or
                    loss is allocated pursuant to Section 6.1 of the Agreement
                    and Section 1 of this Exhibit C.

          (2)  (a)  In the case of an Adjusted Property, such items shall

                    (i) first, be allocated among the Partners in a manner
                    consistent with the principles of Section 704(c) of the Code
                    to take into account the Unrealized Gain or Unrealized Loss
                    attributable to such property and the allocations thereof
                    pursuant to Exhibit B, and

                    (ii) second, in the event such property was originally a
                    Contributed Property, be allocated among the Partners in a
                    manner consistent with Section 2.B(1) of this Exhibit C; and

               (b)  any item of Residual Gain or Residual Loss attributable to
                    an Adjusted Property shall be allocated among the Partners
                    in the same manner its correlative item of "book" gain or
                    loss is allocated pursuant to Section 6.1 of the Agreement
                    and Section 1 of this Exhibit C.

          (3)       all other items of income, gain, loss and deduction shall be
                    allocated among the Partners the same manner as their
                    correlative item of "book" gain or loss is allocated
                    pursuant to Section 6.1 of the Agreement and Section 1 of
                    this Exhibit C.

          C. To the extent Regulations promulgated pursuant to Section 704(c) of
the Code permit a Partnership to utilize alternative methods to eliminate the
disparities between the Carrying Value of property and its adjusted basis, the
General Partner shall, subject to the following, have the authority to elect the
method to be used by the Partnership and such election shall be binding on all
Partners. With respect to the Contributed Property transferred to the
Partnership pursuant to certain Contribution Agreements dated May 24, 1996 by
and between the Partnership and certain contributors, the Partnership shall
elect to use the "traditional method" set forth in Treasury Regulation (S)
1.704-3(b).

                                     - 3 -

<PAGE>

                                   EXHIBIT D
                              NOTICE OF REDEMPTION

          The undersigned hereby irrevocably (i) redeems           Partnership
                                                         ---------
Units in CarrAmerica Realty, L.P. in accordance with the terms of the Agreement
of Limited Partnership of CarrAmerica Realty, L.P., as amended, and the
Redemption Right referred to therein, (ii) surrenders such Partnership Units and
all right, title and interest therein and (iii) directs that the Cash Amount or
REIT Shares Amount (as determined by CarrAmerica) deliverable upon exercise of
the Redemption Right be delivered to the address specified below, and if REIT
Shares are to be delivered, such REIT Shares be registered or placed in the
name(s) and at the address(es) specified below. The undersigned hereby
represents, warrants, and certifies, that the undersigned (a) has marketable,
and unencumbered title to such Partnership Units, free and clear of the rights
of or interests of any other person or entity, (b) has the full right, power and
authority to redeem and surrender such Partnership Units as provided herein and
(c) has obtained the consent or approval of all persons or entities, if any,
having the right to consult or approve such redemption and surrender.

Dated:                            Name of Limited Partner:
       -------------------------                          ----------------------


                                              ----------------------------------
                                              (Signature of Limited Partner)

                                              ----------------------------------
                                              (Street Address)

                                              ----------------------------------
                                              (City)     (State)      (Zip Code)

                                  Signature Guaranteed by:


                                              ----------------------------------

If REIT Shares are to be issued, issue to:

Name:

Please insert social security or identifying number:

<PAGE>

                                    EXHIBIT E
                                  CLASS C UNITS

          Notwithstanding any other provision of the Agreement, including the
provisions of Exhibits A through D thereof, Class C Units shall have the
following designations, preferences, rights, powers and duties:

          (1) General. Except as otherwise provided below, each Class C Unit
shall have the same designations, preferences, rights, powers and duties as each
Class A Unit.

          (2) Distributions. No distributions of Available Cash as described in
Section 5.1 of the Agreement shall be made with respect to a Class C Unit while
such Class C Unit is outstanding.

          (3) Redemption Right. A holder of Class C Units shall not have the
Redemption Right under Section 8.6 of the Agreement with respect to such Class C
Units. The Redemption Right for a holder of Class A Units received with respect
to such holder's Class C Units pursuant to clause (4) below shall be the same as
set forth in Section 8.6 of the Agreement, except that such Redemption Right
shall be exercisable immediately upon issuance of such Class A Units (or on such
other terms as may be set forth in the contribution agreement pursuant to which
such Class C Units are issued).

          (4)  Conversion to Class A Units.

               (a) Beginning on the third anniversary of the date of issuance of
a Class C Unit and on each anniversary thereafter, up to and including the
seventh anniversary of such issuance, each holder of a Class C Unit shall
receive a number of Class A Units, with respect to each Class C Unit owned as of
such date, equal to (A) the greater of (y) one (1) or (z) $24.125 divided by the
average of the daily market price for the ten (10) consecutive trading days
immediately preceding such anniversary date of a REIT Share (determining the
"market price" consistent with the method set forth in the definition of "Value"
in the Agreement), multiplied by (B) .20. On each date of issuance of Class A
Units pursuant to this subparagraph (a), one-fifth of the Class C Units held by
each holder thereof immediately prior to such date shall be canceled and
retired.

               (b) [Intentionally omitted]

               (c) Notwithstanding the provisions of subparagraph (a) above,
each holder of a Class C Unit shall receive a number of Class A Units, with
respect to each Class C Unit, equal to the greater of (y) one (1) or (z) $24.125
divided by the average of the daily market price for the ten (10) consecutive
trading days immediately preceding the date of the occurrence of any of the
events described below (determining the "market price" consistent with the
method set forth in the definition of "Value" in the Agreement), immediately
upon the occurrence of any of the following events: (i) the Partnership enters
into a binding agreement that would result in a Terminating Capital Transaction;
(ii) a Liquidating Event occurs (as defined in Section 13.1 of the Partnership
Agreement); (iii) the General Partner enters into a binding agreement to
transfer its General Partner

<PAGE>

Interest, except for a transfer (y) to an Affiliate of the General Partner (in
which event the term REIT Share shall continue to mean a share of common stock
of CarrAmerica) or (z) in connection with a merger, consolidation or other
business combination involving the General Partner and in which individuals who
immediately prior to such merger, consolidation or other business combination
constituted the board of directors of the General Partner constitute a majority
of the board of directors of the successor General Partner; or (iv) during any
consecutive two-year period commencing on or after the date hereof, individuals
who at the beginning of such period constituted the board of directors of the
General Partner (together with any new directors whose election by the board of
directors or whose nomination for election by stockholders of the General
Partner was approved by a vote of at least a majority of the members of the
board of directors then in office who either were members of the board of
directors at the beginning of such period or whose election or nomination for
election was previously so approved) cease for any reason to constitute a
majority of the members of the board of directors then in office. Upon the
occurrence of any of the events described in this subparagraph (c), each Class C
Unit shall be canceled and retired. The General Partner shall provide each
holder of Class C Units with prompt notice of any of the events described in
this subparagraph (c), so as to enable such holder to avail itself of the
Redemption Right with respect to the Class A Units into which such Class C Units
are converted pursuant to this subparagraph (c).

          (5) Capital Accounts. A Capital Account shall be maintained with
respect to each Class C Unit. The Capital Account for each Class C Unit
initially shall be $24.125, which Capital Account shall be reduced by 20% each
year beginning on the third anniversary of the date of issuance of such Class C
Unit, until the seventh anniversary of the date of such issuance, at which time
the Capital Account for such Class C Unit shall equal to zero (unless a Class A
Unit shall have been issued pursuant to clause (4)(c) above, at which time the
Capital Account for such Class C Unit shall equal zero). The Capital Account for
each Class A Unit issued with respect to a Class C Unit pursuant to clause (4)
above initially shall be $24.125.

          (6) Allocations. No allocations of Partnership items of income, gain,
loss and deduction will be made for tax purposes with respect to the Class C
Units, except as may be required by Section 704(c) of the Code and the
corresponding provisions of the Agreement. For purposes of the Section 704(c)
allocations attributable to property transferred in exchange for the Class C
Units, the Partnership shall use a modified "traditional method" whereby special
curative allocations of gain on the disposition of the property are made to a
Partner holding the Class C Units.

                                     - 2 -

<PAGE>

                                    EXHIBIT F
                                  CLASS D UNITS

          Notwithstanding any other provision of the Partnership Agreement,
including the provisions of Exhibits A through E thereof, Class D Units shall
have the following designations, preferences, rights, powers and duties:

          (1) General. Except as otherwise provided below, each Class D Unit
shall have the same designations, preferences, rights, powers and duties as each
Class A Unit.

          (2) Distributions. Prior to any distribution to Class A Units pursuant
to Section 5.1 of the Agreement, the General Partner shall distribute, to the
extent that there is sufficient Available Cash, to each holder of Class D Units,
a distribution per Class D Unit (multiplied by the Conversion Factor) equal to
the dividend per REIT Share paid by the General Partner for such quarter
multiplied by a fraction, the numerator of which is the number of days in the
quarter or shorter period to which such distribution relates that the Class D
Unit was issued and outstanding, and the denominator of which is the total
number of days in the quarter or shorter period to which such distribution
relates. To the extent that there is not sufficient Available Cash to pay the
distributions to holders of Class D Units, CarrAmerica Realty GP Holdings, Inc.
and CarrAmerica Realty LP Holdings, Inc. jointly and severally agree (i) to the
extent they have previously received distributions of Available Cash, they will
recontribute such funds, and (ii) if there remains insufficient Available Cash
after the application of clause (i) above, they will make an additional Capital
Contribution in an amount sufficient to provide sufficient Available Cash to pay
the distribution to all holders of Class D Units.

          (3) Redemption Right. A holder of Class D Units shall not have the
Redemption Right under Section 8.6 of the Agreement with respect to such Class D
Units until on or after the date two (2) years after each Class D Unit is
issued.

          (4) Conversion to Class A Units. If the Partnership consummates the
sale of the Contributed Property (other than in a transaction that would not
trigger gain under Section 704(c) of the Internal Revenue Code of 1986, as
amended), then, on the date that is sixty (60) days following the date of
closing of any such sale, each Class D Unit shall automatically convert to a
Class A Unit, and each Class D Unit shall be canceled and retired.