Document:

<PAGE>

                                                                   EXHIBIT 10.19

                        COMMON STOCK PURCHASE AGREEMENT

     This Common Stock Purchase Agreement ("Agreement") by and between
PlanetRX.com, Inc. (the "Company"), and Alpha Venture Capital, Inc., a Cook
Islands corporation (the "Purchaser"), is dated as of July 25, 2000.

                                    Recitals
                                    --------

     A.  Purchaser desires to purchase, and the Company desires to sell, shares
of the Company's Common Stock, on the terms and conditions as are set forth
below, and in connection therewith, the Company shall issue certain warrants to
the Purchaser, including an Initial Warrant for 500,000 shares of common stock.

     B.  The parties intend that the issuance of the Subscribed Shares as
anticipated by this Agreement shall be accomplished without registration under
the Securities Act of 1933, as amended (the "Securities Act"), and without
registration or qualification under the securities laws of any state or other
jurisdiction in reliance on exemptions from the registration requirements of the
Securities Act, including without limitation Regulation D under the Securities
Act and Section 4(2) of the Securities Act; provided, however, that a condition
                                            --------  -------
to Purchaser's obligation to accept Subscribed Shares hereunder is that the
resale of such Subscribed Shares be permitted pursuant to the Registration
Statement contemplated by the Registration Rights Agreement executed
concurrently herewith and that the Purchaser otherwise be able to resell such
Subscribed Shares in accordance with applicable laws.

     THEREFORE, in consideration of the mutual promises and covenants set forth
below and for other good and valuable consideration, the receipt and sufficiency
of which the parties acknowledge by their signatures below, the parties agree as
follows (capitalized terms shall have the meanings ascribed to such terms in
Exhibit A hereto, unless otherwise indicated):
---------

     1.  Initial Warrant.  Upon execution hereof, the Company shall deliver to
         ---------------
Purchaser the Initial Warrant duly executed on behalf of the Company.

     2.  Agreement to Purchase.  The Purchaser hereby unconditionally and
         ---------------------
irrevocably agrees to purchase from the Company up to U.S.$50,000,000 of Common
Stock ("Subscribed Shares") in one or more tranches subject to the terms and
conditions provided this Agreement.

     3.  Closings.
         --------
               (a)  Subject to the terms and conditions of this Agreement, the
Company agrees to issue and sell to Purchaser, and the Purchaser agrees purchase
from the Company in immediately available funds, on each Closing Date, the
Subscribed Shares specified in the Put Notice relating to each Closing at a
purchase price equal to the Put Amount divided by the Draw Down Discount
Percentage multiplied by the Market Price of the Common Stock. Subject to the
terms and conditions of this Agreement, the Company further agrees to issue to
the Purchaser on
<PAGE>

each Closing Date Additional Warrants in an amount equal to the product of the
Put Amount and 4,180,000 divided by 50,000,000. Such Additional Warrants shall
contain legends conforming to the requirements of Section 9 hereto. Each Closing
shall occur on the related Closing Date at such place, time and date as the
parties may mutually agree to in writing.

               (b)  On the eleventh (11th) Business Day after the related Put
Notice Date (i) the Company shall deliver physical certificates representing the
Subscribed Shares specified in the Put Notice and the Additional Warrants
relating the Closing to an escrow agent via the DTC System (The Depository Trust
Company system) designated by the Company and the Purchaser and (ii) the
Purchaser shall pay to such escrow agent by wire transfer in immediately
available funds the purchase price for such Closing. Upon receipt by the escrow
agent of the items in clauses (i) and (ii) above, the escrow agent shall deliver
such Subscribed Shares and the Additional Warrants to the Purchaser via the DTC
System (The Depository Trust Company system) and pay the purchase price by wire
transfer in immediately available funds to the Company.

      4.  Put Notice Procedure.  Commencing on or before the Effective Date, the
          --------------------
Company may provide a notice (a "Put Notice") to the Purchaser.  The date the
Put Notice is received by the Purchaser is referred to herein as the "Put Notice
Date"  The Put Notice shall specify the dollar amount (the "Put Amount") of the
Common Stock to be purchased by the Purchaser.  Each Put Notice shall specify a
Put Amount (i) not less than five hundred thousand dollars (U.S.$500,000), (ii)
not more than eight million dollars (U.S.$8,000,000) and (iii) not more than an
amount equal to four hundred percent (400%) of the Trading Volume for the twenty
(20) consecutive Business Days immediately preceding the related Put Notice
Date.

      5.  Representations and Warranties of Purchaser.  To induce the Company's
          -------------------------------------------
acceptance of this Agreement, Purchaser hereby represents and warrants to the
Company as follows:

            5.1  Intent.  Purchaser is acquiring the Securities for its own
                 ------
account and has no present arrangement (whether or not legally binding) to sell
any of the Securities to or through any Person; provided, however, that
                                                --------  -------
Purchaser does not agree to hold any of the Securities for any minimum or other
specific term and reserves the right to dispose of the Securities at any time in
accordance with U.S. federal and state securities laws applicable to such
disposition and any restrictions imposed on such transfer by this Agreement or
the instruments and documents executed in connection with this Agreement.
Purchaser has been advised or is aware of the provisions of Rule 144 promulgated
under the Securities Act.

            5.2  Sophisticated Investor.  Purchaser is an "accredited investor"
                 ----------------------
(as defined in Rule 501(a) of Regulation D) and a sophisticated investor that
has such knowledge and experience in financial and business matters as to be
capable of evaluating the merits and risks of an investment in the Securities.
Purchaser was not formed exclusively for the purpose of entering into the
transactions contemplated hereby.

            5.3  Ability of Purchaser to Bear Risk of Investment.  Purchaser
                 -----------------------------------------------
acknowledges that the Securities are speculative investments and involve a high
degree of risk. Purchaser is able to bear the economic risk of an investment in
the Securities, and is able to afford a complete loss of such investment.

                                      -2-
<PAGE>

            5.4  Authority.  This Agreement has been duly authorized and validly
                 ---------
executed and delivered by Purchaser and (assuming due authorization and valid
execution by the Company) is a legal, valid and binding agreement of Purchaser
enforceable against Purchaser in accordance with its terms, subject to general
principles of equity and to bankruptcy, insolvency or similar laws relating to,
or affecting generally the enforcement of creditors' rights and remedies or by
other equitable principles of general application. Each Person executing this
Agreement and any other Transaction Documents on behalf of Purchaser has all
requisite authority to do so on behalf of Purchaser.

            5.5  Brokers, Finders.  Purchaser has taken no action which would
                 ----------------
give rise to any claim by any Person for brokerage commission, finder's fees or
similar payments by the Company relating to this Agreement or the transactions
contemplated hereby.

            5.6  Organization; Authority.  Purchaser is an entity organized,
                 -----------------------
validly existing and in good standing under the laws of the Cook Islands with
the requisite power and authority to enter into and to consummate the
transactions contemplated by this Agreement and to carry out its obligations
thereunder. The acquisition of the Securities and the payment of the purchase
price therefor by Purchaser have been duly authorized by all necessary action on
the part of Purchaser.

            5.7  Absence of Conflicts.  The execution and delivery of this
                 --------------------
Agreement and any other document or instrument executed in connection herewith
(collectively with this Agreement, the "Transaction Documents"), and the
consummation of the transactions contemplated by the Transaction Documents, and
compliance with the requirements thereof, will not violate any law, rule,
regulation, order, writ, judgment, injunction, decree or award binding on
Purchaser, or the provision of any indenture, instrument or agreement to which
Purchaser is a party or is subject, or by which Purchaser or any of its assets
is bound, or conflict with or constitute a material default thereunder, or
require the approval of any third-party pursuant to any material contract,
agreement, instrument, relationship or legal obligation to which Purchaser is
subject or to which any of its assets, operations or management may be subject.

            5.8  Disclosure; Access to Information.  Purchaser has received
                 ---------------------------------
copies of or has had access to all documents, records, books and other
information pertaining to Purchaser's investment in the Company and the
Securities that have been requested by Purchaser. Purchaser has been afforded
the opportunity to ask questions of and receive answers from the Company and its
management concerning all aspects of the Company and of this transaction.
Purchaser further acknowledges that it understands that the Company is subject
to the periodic reporting requirements of the Securities Exchange Act of 1934,
as amended (the "Exchange Act"), and Purchaser has reviewed or received copies
of any such reports that have been requested by it. Purchaser further
acknowledges that it has been provided with copies of the Company's certificate
of incorporation, as amended (the "Certificate"), and the Company's bylaws (the
"Bylaws").

            5.9  Manner of Sale.  At no time was Purchaser presented with or
                 ---------------
solicited by or through any leaflet, public promotional meeting, television
advertisement or any other form of general solicitation or advertising with
respect to the Securities.

                                      -3-
<PAGE>

            5.10  Accuracy of Other Materials.  To the extent Purchaser has
                  ---------------------------
received from the Company documents or other materials which constitute
summaries, projections, forecasts or estimates, Purchaser acknowledges the
following with respect to such documents or other materials: Such documents or
other materials are intended to illustrate projected financial and other results
based upon a set of assumptions (in some cases based on information obtained by
the Company from outside sources) the Company views as reasonable and
obtainable; all such summaries, projections, forecasts or estimates pertaining
to revenue growth, profitability and other similar financial or market data are
forward-looking statements; such statements are subject to certain risks and
uncertainties that could cause actual results to differ materially from those
projected; and no representations or warranties of future performance by or
market trends for the Company are intended, and such are expressly disclaimed.

            5.11  Accuracy of Representations and Information.  All
                  -------------------------------------------
representations made by Purchaser in this Agreement and all documents and
instruments related to this Agreement, and all information provided by Purchaser
to the Company concerning Purchaser are correct and complete in all material
respects as of the date hereof.

      6.  Representations and Warranties of the Company. The Company hereby
          ---------------------------------------------
represents and warrants to Purchaser as follows:

            6.1  Company Status.  The Company has registered the Common Stock
                 --------------
pursuant to Section 12(g) of the Exchange Act, is in full compliance with all
reporting requirements of the Exchange Act, and the Company has maintained all
requirements for the continued listing of the Common Stock, and such Common
Stock, as of the date hereof, is listed on the NASDAQ National Market System
under the symbol "PLRX".

            6.2  Current Public Information.  The Company has furnished or made
                 --------------------------
available to Purchaser true and correct copies of all registration statements,
reports and documents, including proxy statements (other than preliminary proxy
statements), filed with the SEC by or with respect to the Company since December
31, 1999 and prior to the date of this Agreement, pursuant to the Securities Act
or the Exchange Act (collectively, the "SEC Documents").

            6.3  No General Solicitation.  Neither the Company, nor any of its
                 -----------------------
Affiliates, nor any Person acting on its or their behalf, has engaged in any
form of general solicitation or general advertising (within the meaning of
Regulation D under the Securities Act) in connection with the offer or sale of
the Securities.

            6.4  Valid Issuance of Common Stock.  The Company has an authorized
                 ------------------------------
capitalization consisting of one hundred million (100,000,000) shares of Common
Stock, and five million (5,000,000) shares preferred stock.  As of July 21, 2000
the Company had (i) 51,453,667 shares of Common Stock issued and outstanding,
(ii) no shares of preferred stock issued and outstanding, (iii) 166,740 shares
of Common Stock subject to issuance upon the conversion or exercise of presently
issued and outstanding warrants of the Company, (iv) 7,145,894 shares of Common
Stock subject to issuance upon the conversion or exercise of presently issued
and outstanding options of the Company and (v) 14,618,341 shares of Common Stock
which are reserved for issuance under the Company's existing stock option plans.
All of the shares of Common Stock outstanding have been duly and validly
authorized and issued and

                                      -4-
<PAGE>

are fully paid and non-assessable. As of the date of this Agreement, except as
may be set forth above, (i) there are no outstanding options, warrants, scrip,
rights to subscribe to, calls or commitments of any character whatsoever
relating to, or securities or rights convertible into, any shares of capital
stock of the Company or any of the Subsidiaries, or contracts, commitments,
understandings or arrangements by which the Company or any of it Subsidiaries is
or may become bound to redeem or issue additional shares of capital stock of the
Company or any of the Subsidiaries or options, warrants, scrip, rights to
subscribe to, calls or commitments of any character whatsoever relating to, or
securities or rights convertible into, any shares of capital stock of the
Company or any of the Subsidiaries, (ii) there are no outstanding debt
securities, other than indebtedness to banks and other institutional lenders set
forth on Schedule 6.4 and (iii) except for arrangements disclosed in filings by
         ------------
the Company with the SEC, there are no arrangements under which the Company or
any of the Subsidiaries is obligated to register the sale of any of their
securities under the Securities Act. Except as may be set forth in
Schedule 6.4, there are no securities or instruments containing any anti-
------------
dilution, right of first refusal, preemptive rights or similar provisions that
will be triggered by the issuance of the Securities as described in this
Agreement.  Upon issuance of the Securities, such securities will be duly and
validly issued, fully paid and non-assessable.

            6.5  Organization and Qualification.  Since December 31, 1999, no
                 ------------------------------
Material Adverse Effect has occurred with respect to the Company or its
Subsidiaries, except (i) as may be disclosed in the SEC Documents or any other
documents filed with the SEC by the Company, (ii) as may have been disclosed to
the Purchaser in writing by the Company or (iii) as may have been otherwise
publicly disclosed by the Company. The Company is a corporation duly
incorporated and existing in good standing under the laws of the Delaware and
has the requisite corporate power to own its properties and to carry on its
business as now being conducted. The Company does not have any Subsidiaries,
except for those listed on Schedule 4.5 attached to this Agreement (the
                           ------------
"Subsidiaries"). The Subsidiaries are duly incorporated and existing in good
standing under the laws of the jurisdiction of their incorporation. The Company
and each of the Subsidiaries is duly qualified as a foreign corporation to do
business and is in good standing in every jurisdiction in which the nature of
the business conducted or property owned by it makes such qualification
necessary, other than those in which the failure so to qualify would not have a
Material Adverse Effect. "Material Adverse Effect" means any effect on the
business, operations, properties or financial condition of the Company and which
is material and adverse to the Company, and/or any condition or situation which
would prohibit or otherwise interfere with the ability of the Company to enter
into and perform its obligations under the Transaction Documents.

            6.6  Authorization: Enforcement.  (i) The Company has the requisite
                 --------------------------
corporate power and authority to enter into and perform under the Transaction
Documents and to issue the Securities in accordance with the terms of the
Transaction Documents, (ii) the execution, issuance and delivery of the
Transaction Documents by the Company and the consummation by it of the
transactions contemplated by the Transaction Documents have been duly authorized
by all necessary corporate action, and no further consent or authorization of
the Company or its board of directors or stockholders is required, (iii) the
Transaction Documents have been duly executed and delivered by the Company, and
(iv) the Transaction Documents (assuming due authorization and valid and legal
execution by Purchaser) constitute legal, valid and binding obligations of the
Company enforceable against the Company in accordance with their terms,

                                      -5-
<PAGE>

except as such enforceability may be limited by applicable bankruptcy,
insolvency, or similar laws relating to, or affecting generally the enforcement
of, creditors' rights and remedies or by other equitable principles of general
application.

            6.7  Corporate Documents.  The Company has furnished or made
                 -------------------
available to Purchaser true and correct copies of the Certificate and the
Bylaws.

            6.8  No Conflicts.  The execution, delivery and performance of the
                 ------------
Transaction Documents by the Company and the consummation by the Company of the
transactions contemplated hereby, including without limitation the issuance of
the Securities, do not and will not (i) result in a violation of the Company's
Certificate or Bylaws, or (ii) conflict with, or result in a breach of or
forfeiture of any rights (or result in an event which with notice or lapse of
time or both would become a breach of or forfeiture of any rights) under, or
give to others any rights of termination, amendment, acceleration or
cancellation of, any material agreement, indenture or instrument to which the
Company or any of the Subsidiaries is a party, or (iii) result in a violation of
any federal or state law, rule, regulation, order, judgment or decree (including
federal and state securities laws and regulations) applicable to the Company or
any of the Subsidiaries or by which any property or asset of the Company or any
of the Subsidiaries is bound or affected (except for such conflicts, defaults,
terminations, amendments, accelerations, cancellations and violations as would
not, individually or in the aggregate, have a Material Adverse Effect). The
business of the Company is not being conducted in violation of any law,
ordinance or regulation of any governmental entity, except for possible
violations which either singly or in the aggregate do not and will not have a
Material Adverse Effect. The Company is not required under federal, state or
local law, rule or regulation to obtain any consent, authorization or order of,
or make any filing or registration with, any court or governmental agency in
order for it to execute, deliver or perform any of its obligations under this
Agreement or issue and sell the Securities in accordance with the terms of this
Agreement (other than any SEC, NASD or state securities filings which may be
required to be made by the Company subsequent to any closing hereunder, and any
registration statement which may be filed in furtherance of this Agreement);
provided that the Company is assuming and relying upon the accuracy of the
--------
relevant representations and agreements of Purchaser herein. Neither the Company
nor any of the Subsidiaries is in violation of any material term of or in
material default under its Certificate or Bylaws or their organizational charter
or bylaws, respectively, or any material contract, agreement, mortgage,
indebtedness, indenture, instrument, judgment, decree of order or any statute,
rule or regulation applicable to the Company or the Subsidiaries, which has not
been duly waived as of the date of this Agreement.

            6.9  SEC Documents.  As of their respective dates, the SEC Documents
                 -------------
complied, and all similar documents filed with the SEC prior to each Closing
Date will comply, in all material respects with the requirements of the
Securities Act or the Exchange Act, as the case may be, and rules and
regulations of the SEC promulgated thereunder and other federal, state and local
laws, rules and regulations applicable to such SEC Documents, and none of the
SEC Documents contained, nor will any similar document filed with the SEC prior
to each Closing Date contain, any untrue statement of a material fact or omitted
or omit to state a material fact required to be stated therein or necessary in
order to make the statements therein, in the light of the circumstances under
which they were made, not misleading. The financial statements of the Company
included in the SEC Documents, as of the dates thereof, complied, and all
similar

                                      -6-
<PAGE>

documents filed with the SEC prior to each Closing Date will comply, as to form
in all material respects with applicable accounting requirements and the
published rules and regulations of the SEC and other applicable rules and
regulations with respect thereto. Such financial statements were prepared in
accordance with generally accepted accounting principles applied on a consistent
basis during the periods involved (except (i) as may be otherwise indicated in
such financial statements or the notes thereto or (ii) in the case of unaudited
interim statements, to the extent they may not include footnotes or may be
condensed or summary statements as permitted by Form 10-QSB of the SEC) and
fairly present in all material respects the financial position of the Company
and its consolidated Subsidiaries as of the dates thereof and the consolidated
results of operations and cash flows for the periods then ended (subject, in the
case of unaudited statements, to normal year-end audit adjustments). The Company
has filed all reports and other documents required to be filed by it with the
SEC under the Exchange Act.

            6.10  No Undisclosed Liabilities.  The Company and the Subsidiaries
                  --------------------------
have no liabilities or obligations of a financial nature (whether accrued,
absolute, contingent or otherwise), which are material, individually or in the
aggregate, and are not disclosed in the SEC Documents, other than those incurred
in the ordinary course of the Company's or the Subsidiaries' respective
businesses consistent with past practice since March 31, 2000, and which,
individually or in the aggregate, do not or would not have a Material Adverse
Effect on the Company.

            6.11  Litigation and Other Proceedings.  Except as may be set forth
                  --------------------------------
in the SEC Documents or any other documents filed with the SEC by the Company or
otherwise disclosed in writing to Purchaser, there are no lawsuits or
proceedings pending or to the best knowledge of the Company threatened, against
the Company, nor has the Company received any written or oral notice of any such
action, suit, proceeding or investigation, which might have a Material Adverse
Effect on the Company or which might materially adversely affect the
transactions contemplated by this Agreement. Except as set forth in the SEC
Documents or any other documents filed with the SEC by the Company, no judgment,
order, writ, injunction or decree or award has been issued by or, to the best
knowledge of the Company, requested of any court, arbitrator or governmental
agency which might result in a Material Adverse Effect or which might materially
adversely affect the transactions contemplated by this Agreement.

            6.12  Other Documents or Materials.  With respect to any document or
                  ----------------------------
other materials received by Purchaser from the Company or its representatives
other than the Transaction Documents and the SEC Documents or any other
documents filed with the SEC by the Company, (i) the Company has no reason to
believe any of such documents and materials or any projections contained
therein, as of the date of such other documents or materials, contained material
errors or misstatements or do not adequately describe the status of the
development of the Company's technologies or its business as of such date, and
(ii) such documents, materials and projections were prepared by the Company and
its management in good faith.

            6.13  Nature of Company.  The Company is not an open ended
                  -----------------
investment company or a unit investment trust, registered or required to be
registered, or a closed end investment company required to be registered, but
not registered, under the Investment Company Act of 1940.

                                      -7-
<PAGE>

            6.14  Brokers, Finders.  Except for payment of commitment fees to
                  ----------------
Purchaser, payment of which is the sole responsibility of the Company, the
Company has taken no action which would give rise to any claim by any Person for
brokerage commission, finder's fees or similar payments by Purchaser relating to
this Agreement or the transactions contemplated hereby.

            6.15  Absence of Certain Changes.  The Company has not taken any
                  --------------------------
steps, and does not currently expect to take any steps, to seek protection
pursuant to any bankruptcy law nor does the Company or any of the Subsidiaries
have any knowledge or reason to believe that its creditors intend to initiate
involuntary bankruptcy proceedings.

            6.16  Intellectual Property Rights.  The Company and the
                  ----------------------------
Subsidiaries own or possess adequate rights or licenses to use all trademarks,
trade names, service marks, service mark registrations, service names, patents,
patent rights, copyrights, inventions, licenses, approvals, governmental
authorizations, trade secrets and rights necessary to conduct their respective
businesses as now conducted. None of the Company's trademarks, trade names,
service marks, service mark registrations, service names, patents, patent
rights, copyrights, inventions, licenses, approvals, government authorizations,
trade secrets or other intellectual property rights have expired or terminated,
or are expected to expire or terminate in the near future. The Company and the
Subsidiaries do not have any knowledge of any infringement by the Company or the
Subsidiaries of trademarks, trade name rights, patents, patent rights,
copyrights, inventions, licenses, service names, service marks, service mark
registrations, trade secrets or other similar rights of others, or of any such
development of similar or identical trade secrets or technical information by
others and, there is no claim, action or proceeding being made or brought
against, or to the best knowledge of the Company, being threatened against, the
Company or the Subsidiaries regarding trademark, trade name, patent, patent
rights, invention, copyright, license, service name, service mark, service mark
registration, trade secret or other infringement; and the Company and the
Subsidiaries are unaware of any facts or circumstances which might give rise to
any of the foregoing. The Company and the Subsidiaries have taken reasonable
security measures to protect the secrecy, confidentiality and value of all of
their intellectual properties.

            6.17  Internal Accounting Controls.  The Company is aware of no
                  ----------------------------
respect in which its system of internal accounting controls is not sufficient to
provide reasonable assurance that (i) transactions are executed in accordance
with management's general or specific authorizations, (ii) transactions are
recorded as necessary to permit preparation of financial statements in
conformity with generally accepted accounting principles and to maintain asset
accountability, (iii) access to assets is permitted only in accordance with
management's general or specific authorization and (iv) the recorded
accountability for assets is compared with the existing assets at reasonable
intervals and appropriate action is taken with respect to any differences.

            6.18  Tax Status.  The Company and the Subsidiaries have made or
                  ----------
filed all federal and state income and all other tax returns, reports and
declarations required by any jurisdiction to which it is subject and has paid
all taxes and other governmental assessments and charges that are material in
amount, shown or determined to be due on such returns, reports, declarations,
except those being contested in good faith and has set aside on its books
provisions

                                      -8-
<PAGE>

reasonably adequate for the payment of all taxes for periods subsequent to the
periods to which such returns, reports, or declarations apply. There are no
unpaid taxes in any material amount claimed to be due by the taxing authority of
any jurisdiction, and the officers of the Company know of no basis for any such
claim.

            6.19  Certain Transactions.  Except as set forth in the SEC
                  --------------------
Documents or any other documents filed with the SEC by the Company and except
for arm's length transactions pursuant to which the Company makes payments in
the ordinary course of business upon terms no less favorable than the Company
could obtain from third parties and other than the grant of stock options, none
of the officers, directors, or employees of the Company (or any spouse or
relative of any such Person) is presently a party to any transaction with the
Company (other than for services as employees, officers, consultants and
directors), including any contract, agreement or other arrangement providing for
the furnishing of services to or by, providing for rental of real or personal
property to or from, or otherwise requiring payments to or from any officer,
director or such employee or, to the knowledge of the Company, any corporation,
partnership, trust or other entity in which any officer, director, or any such
employee has a substantial interest or is an officer, director, trustee or
partner.

            6.20  Dilution.  The Chief Executive Officer and the Chief Financial
                  --------
Officer and the board of the Company have studied and the board has approved the
transactions contemplated by this Agreement, which may have a potential dilutive
effect. The Company has concluded, in its good faith business judgment, that
such issuance is in the best interests of the Company.

            6.21  NASDAQ Listing.  The Company's Common Stock is presently
                  --------------
quoted on the NASDAQ National Market System under the symbol "PLRX." The Company
is not in receipt of any written notice from any stock exchange, market or
trading facility on which the Common Stock is or has been listed (or on which it
is or has been quoted) to the effect that the Company is not in compliance with
the listing or maintenance requirements of such stock exchange, market or
trading facility or that the Common Stock will be delisted from such stock
exchange, market or trading facility.

            6.22  No Integrated Offering.  Neither the Company nor any of its
                  ----------------------
Affiliates nor any Person acting on its or their behalf has, directly or
indirectly made any offer or sales of any security or solicited any offers to
buy any security under circumstances that would eliminate the availability of
the exemption from registration under Regulation D in connection with the offer
and sale of the Securities as contemplated hereby.

      7.  Company Reliance on Purchaser's Representations.  Purchaser
          -----------------------------------------------
understands that the Company is relying on the truth and accuracy of the
representations and warranties made herein by Purchaser in offering the
Securities for sale and in relying upon applicable exemptions available under
the Securities Act and applicable state securities laws.

      8.  Other Covenants of the Company.
          ------------------------------

            8.1  Furnishing of Information.  As long as Purchaser owns
                 -------------------------
Securities, the Company covenants to timely file (or obtain extensions in
respect thereof and file within the

                                      -9-
<PAGE>

applicable grace period) all reports required to be filed by the Company after
the date hereof pursuant to Section 13(a) or 15(d) of the Exchange Act. If at
any time prior to the date on which Purchaser may resell all of the Securities
without volume restrictions pursuant to Rule 144(k) promulgated under the
Securities Act (as determined by counsel to the Company pursuant to a written
opinion letter to such effect, addressed and acceptable to the Company's
transfer agent for the benefit of and enforceable by Purchaser) the Company is
not required to file reports pursuant to such sections, it will prepare and
furnish to Purchaser and make publicly available in accordance with Rule 144(c)
promulgated under the Securities Act annual and quarterly financial statements,
together with a discussion and analysis of such financial statements in form and
substance substantially similar to those that would otherwise be required to be
included in reports required by Section 13(a) or 15(d) of the Exchange Act in
the time period that such filings would have been required to have been made
under the Exchange Act. The Company further covenants that it will take such
further action as any holder of Securities may reasonably request, all to the
extent required from time to time to enable such Person to sell Securities
without registration under the Securities Act within the limitation of the
exemptions provided by Rule 144 promulgated under the Securities Act.

            8.2  Certain Agreements.  During the period commencing on the date
                 ------------------
hereof and ending on the earlier of (i) the termination of this Agreement
pursuant to Section 11.13 and (ii) the date on which the Purchaser has purchased
from the Company U.S.$50,000,000 of Common Stock, the Company shall provide the
Purchaser with written notice ("Company Notice") of the Company's intent to
raise capital through the issuance of additional equity securities in a private
transaction not registered with the SEC at least five (5) Business Days prior to
the closing date for such transaction. If within five (5) Business Days of the
date on which the Purchaser receives notice of such transaction, the Purchaser
provides the Company with written notice that the Purchaser is exercising a
right of first refusal to purchase such additional equity securities at terms
better than or equal to those specified in the Company Notice, the Company shall
enter into such transaction with the Purchaser. If the Purchaser declines to
exercise its right of first refusal, or fails to do so within the time period
described above, the Company may proceed with the proposed offering on the terms
described in the Company Notice. The Provisions of this Section 8.2 shall not
apply to the Company (i) raising capital by issuing its equity securities (or
instruments convertible into or exercisable for equity securities) to strategic
partners and/or in connection with mergers or acquisitions, (ii) issuing
securities (other than for cash) in connection with a merger, consolidation,
sale of assets, disposition or the exchange of the capital stock for assets,
stock or other joint venture interests or (iii) converting or exercising any
convertible or derivative securities outstanding on the date hereof. The Company
and the Purchaser further acknowledge that the provisions of this Section 8.2
shall not be binding upon any successors or assigns of the parties hereto.

            8.3  Available Shares.  At all times until the termination of this
                 ----------------
Agreement, prior to each Closing the Company shall have authorized and reserved
for issuance the shares required to be issued at such Closing.

                                      -10-
<PAGE>

      9.  Legends.  So long as the Registration Statement relating to resales of
          -------
the Securities of the Company has been declared effective by SEC, the Company
shall issue certificates representing Securities with the following legend:

          THE SHARES REPRESENTED BY THIS CERTIFICATE MAY NOT BE SOLD,
          TRANSFERRED, PLEDGED, HYPOTHECATED OR OTHERWISE DISPOSED OF
          IN ANY MANNER UNLESS THE HOLDER OR A BROKER, ON BEHALF OF
          THE HOLDER, REPRESENTS THAT IT HAS COMPLIED WITH THE PROSPECTUS
          DELIVERY REQUIREMENTS CONTAINED IN SECTION 5 OF THE SECURITIES
          ACT OF 1933, AS AMENDED, OR UNLESS AN EXEMPTION FROM THE
          REGISTRATION PROVISIONS OF SUCH ACT IS AVAILABLE.

If the Registration Statement relating to resales of the Securities of the
Company is not effective at the time of issuance, the Company shall issue
certificates representing the Securities with the following legend:

          THESE SECURITIES HAVE NOT BEEN REGISTERED WITH THE SECURITIES
          AND EXCHANGE COMMISSION OR THE SECURITIES COMMISSION OF ANY
          STATE IN RELIANCE UPON AN EXEMPTION FROM REGISTRATION UNDER
          THE SECURITIES ACT OF 1933, AS AMENDED (THE "SECURITIES ACT"),
          AND, ACCORDINGLY, MAY NOT BE OFFERED OR SOLD EXCEPT PURSUANT
          TO AN EFFECTIVE REGISTRATION STATEMENT UNDER THE SECURITIES
          ACT OR PURSUANT TO AN AVAILABLE EXEMPTION FROM, OR IN A
          TRANSACTION NOT SUBJECT TO, THE REGISTRATION REQUIREMENTS OF
          THE SECURITIES ACT AND IN ACCORDANCE WITH APPLICABLE STATE
          SECURITIES LAWS.

      10.  Conditions to Closings.
           ----------------------

            10.1  Conditions to the Company's Obligation to Sell.  The Purchaser
                  ----------------------------------------------
understands that the Company's obligation to sell the Subscribed Shares on each
Closing Date pursuant to this Agreement is conditioned upon the following:

                  (a)  the accuracy on each such date of the representations and
warranties of Purchaser contained in this Agreement as if made thereon, and the
performance by Purchaser on or before such date of all covenants and agreements
of Purchaser required to be performed on or before such date;

                                      -11-
<PAGE>

                  (b)  there not being in effect any law, rule or regulation
prohibiting or restricting the transactions contemplated hereby, or requiring
any consent or approval which shall not have been obtained, nor there being any
pending or threatened proceeding or investigation which may have the effect of
prohibiting or adversely affecting any of the transactions contemplated by this
Agreement.

            10.2  Conditions to Purchaser's Obligation To Purchase.  The Company
                  ------------------------------------------------
understands that Purchaser's obligation to purchase the Subscribed Shares on
each Closing Date pursuant to this Agreement is conditioned upon the following:

                  (a)  the accuracy in all material respects on each such date
of the representations and warranties of the Company contained in this Agreement
as if made on such date and the performance by the Company on or before each
such date of all covenants and agreements of the Company required to be
performed on or before such date;

                  (b)  there not being in effect any law, rule or regulation
prohibiting or restricting the transactions contemplated hereby, or requiring
any consent or approval which shall not have been obtained, nor there being any
pending or threatened proceeding or investigation which may have the effect of
prohibiting or adversely affecting any of the transactions contemplated by this
Agreement;

                  (c)  a registration statement relating to the Registration
Rights Agreement shall be effective, and if previously suspended shall be
effective and have been effective for at least fifteen (15) days prior to the
Closing Date, and shall relate to the Subscribed Shares and the Additional
Warrants to be issued in such Closing;

                  (d)  the trading of the Common Stock shall not be suspended by
the SEC or the NASD;

                  (e)  the Company shall be in compliance with all Blue Sky laws
necessary to issue and resell through a broker in the State of California the
Subscribed Shares relating to such Closing;

                  (f)  as of the date hereof, (i) the Company shall not have
materially changed its line of business (ii) the Company shall not be material
in default under any of its existing debt or loan obligations, (iii) there shall
be no current SEC finding of wrongdoing by the Company, (iv) there shall be no
final adverse determination against the Company by a court or governmental
agency and (v) no bankruptcy proceeding shall be initiated with respect to the
Company, in each case which has a Material Adverse Effect; and

                  (g)  the Company shall deliver to the Purchaser an opinion of
counsel substantially in the form of Exhibit D hereto.

     11.  Miscellaneous.
          -------------

          11.1  Assignment.  Neither this Agreement nor any rights of the
                ----------
parties hereunder may be assigned by either party to any other Person without
the prior written consent of the other party hereto; provided, however, that the
                                                     --------  -------
Company may assign its rights hereunder

                                      -12-
<PAGE>

in connection with a merger, consolidation, sale of assets, disposition or the
exchange of capital stock of the Company.

          11.2  Attorneys' Fees.  In the event any dispute arises under this
                ---------------
Agreement or the documents or instruments executed and delivered in connection
with this Agreement, and the parties hereto resort to litigation to resolve such
dispute, the prevailing party in any such litigation, in addition to all other
remedies at law or in equity, shall be entitled to an award of costs and fees
from the other party, which costs and fees shall include, without limitation,
reasonable attorneys' fees and legal costs.

          11.3  Choice of Law; Venue.  This Agreement shall be governed by and
                --------------------
interpreted in accordance with the laws of the State of California for contracts
to be wholly performed in such state and without giving effect to the principles
thereof regarding the conflict of laws. Each of the parties consents to the
jurisdiction of the federal courts whose districts encompass any part of the
City of San Francisco or the state courts of the State of California sitting in
the City of San Francisco in connection with any dispute arising under this
Agreement and hereby waives, to the maximum extent permitted by law, any
objection, including any objection based on forum non coveniens, to the bringing
of any such proceeding in such jurisdictions.

          11.4  Costs and Expenses.  The parties shall be responsible for and
                ------------------
shall pay their own costs and expenses, including without limitation attorneys'
fees and accountants' fees and expenses, in connection with the conduct of the
due diligence inquiry, negotiation, execution and delivery of this Agreement and
the instruments, documents and agreements executed in connection with this
Agreement, except that the Company shall within five (5) Business Days of the
date of the execution of this Agreement pay to Krieger & Prager, Esqs., legal
counsel for the Purchaser, by wire transfer in immediately available funds,
U.S.$45,000.00 representing legal and general expenses of the Purchaser.

          11.5  Counterparts/Facsimile Signatures.  This Agreement may be
                ---------------------------------
executed in one or more counterparts, each of which when so signed shall be
deemed to be an original, and such counterparts together shall constitute one
and the same instrument. In lieu of the original, a facsimile transmission or
copy of the original shall be as effective and enforceable as the original.

          11.6  Entire Agreement: Amendment.  This Agreement, together with the
                ---------------------------
exhibits and schedules to this Agreement and the other instruments and documents
delivered in connection with this Agreement constitute the full and entire
understanding and agreement between the parties with regard to the subjects
hereof and thereof, and no party shall be liable or bound to any other party in
any manner by any warranties, representations or covenants except as
specifically set forth in this Agreement or therein. Except as expressly
provided in this Agreement, neither this Agreement nor any term hereof may be
amended, waived, discharged or terminated other than by a written instrument
signed by the party against whom enforcement of any such amendment, waiver,
discharge or termination is sought.

                                      -13-
<PAGE>

          11.7  Headings.  The headings of the sections and paragraphs of this
                --------
Agreement have been inserted for convenience of reference only and do not
constitute a part of this Agreement.

          11.8  Notices.  All notices or other communications provided for under
                -------
this Agreement shall be in writing, and mailed, telecopied or delivered by hand
delivery or by overnight courier service, as follows:

               If to the Company:

               PlanetRX.com, Inc.
               349 Oyster Point Boulevard, Suite 201
               South San Francisco, CA 94080
               Attn.:  CFO.
               Fax No.:  (650) 616-1585

               With a copy to:

               PlanetRX.com, Inc.
               349 Oyster Point Boulevard, Suite 201
               South San Francisco, CA 94080
               Attn.: General Counsel
               Fax No.: (650) 616-1585

               If to Purchaser:

               Alpha Venture Capital, Inc.
               [_______________]
               [_______________]
               [_______________]
               Attention:  Mr. Barry Herman, Director
               Fax No.:  [________________]

               With a copy to:

               Krieger & Prager, Esqs.
               39 Broadway, Suite 1440
               New York, NY 10006
               Attention:  Samuel M. Krieger, Esq.
               Fax No.:  (212) 213-2077

All notices and communications shall be effective as follows:  When mailed, upon
three (3) Business Days after deposit in the mail (postage prepaid); when
telecopied, upon confirmed transmission of the telecopied notice; when hand
delivered, upon delivery; and when sent by overnight courier, the next Business
Day after deposit of the notice with the overnight courier.

                                      -14-
<PAGE>

          11.9  Publicity.  Purchaser acknowledges that this Agreement and all
                ---------
or part of the Transaction Documents may be deemed to be "material contracts" as
that term is defined by Item 601(b)(10) of Regulation S-B, and that the Company
may therefore be required to file such documents as exhibits to reports or
registration statements filed under the Securities Act or the Exchange Act.
Purchaser further agrees that the status of such documents and materials as
material contracts shall be determined solely by the Company, in consultation
with its counsel. Purchaser consents to the Company's public disclosure of this
Agreement in accordance with the Securities Act and the Exchange Act.

          11.10  Severability.  Should any one or more of the provisions of this
                 ------------
Agreement be determined to be illegal or unenforceable, all other provisions of
this Agreement shall be given effect separately from the provision or provisions
determined to be illegal or unenforceable and shall not be affected thereby.

          11.11  Survival of Representations and Warranties.  The Company's
                 ------------------------------------------
representations and warranties herein shall survive the execution and delivery
of this Agreement and the delivery of the Securities, and shall inure to the
benefit of Purchaser and its successors and permitted assigns. The Purchaser's
representations and warranties herein shall survive the execution and delivery
of this Agreement and the delivery of the Securities, and shall inure to the
benefit of Company and its successors and permitted assigns.

          11.12  Schedules and Exhibits.  The schedules and exhibits attached to
                 ----------------------
this Agreement are a part hereof, as if fully set forth herein.

          11.13  Termination.  The obligations of the parties hereunder shall
                 -----------
expire one (1) year from the Effective Date; provided that in the event that
                                             --------
during the initial twelve (12) months after the Effective Date, Purchaser
purchases at least ten million dollars (U.S.$10,000,000) in Common Stock
pursuant to this Agreement, the terms of this Agreement shall be automatically
extended for an additional period of twelve (12) months, unless the Company in
its sole discretion elects not to extend the term of this Agreement and provides
notice of such election to Purchaser; and provided, further, that the
                                          --------  -------
obligations of the parties hereunder shall expire on December 7, 2000 if one or
more Registration Statements relating to the Warrants and the Subscribed Shares
has not been declared effective by the SEC.

          11.14  Successors and Assigns.  This Agreement will inure to the
                 ----------------------
benefit of and be binding upon the parties hereto and, unless otherwise provided
herein, their respective successors and assigns.

                                      -15-
<PAGE>

     IN WITNESS WHEREOF, the parties named below have caused this Agreement to
be executed and delivered as of the date first above written.

                                    PLANETRX.COM, INC

                                    By:
                                       ------------------------------
                                       Name:
                                       Title:

                                    ALPHA VENTURE CAPITAL, INC.

                                    By:
                                       ------------------------------
                                       Name:
                                       Title:

                                      -16-
<PAGE>

                                   Exhibit A
                                   ---------

                                  DEFINITIONS
                                  -----------

"Additional Warrant" means a warrant in the form of Exhibit B hereto to purchase
                                                    ---------
a number of shares of Common Stock equal to ten percent (10%) of the number of
Additional Shares.

"Affiliate" has the meaning set forth in the Exchange Act and the rules and
regulations thereunder.

"Business Day" means a day on which the Nasdaq stock market is open for regular
trading.

"Closing" means each of the transactions described in Section 3.

"Closing Date" means the tenth (10th) Business Day after the related Put Notice
Date.

"Common Stock" means common stock, $0.0001 par value per share, of the Company.

"Draw Down Discount Percentage" means 91%; provided, however, that for each
                                           --------  -------
$0.50 the Market Price increases from $1.50 as of the related Put Date, the Draw
Down Discount Percentage shall increase by 0.25%, incrementally, to a maximum of
97%.

"Effective Date" means the date the registration statement filed pursuant to the
Registration Rights Agreement is declared effective by the SEC.

"Exchange Act" is defined in Section 5.8.

"Initial Warrant" means a warrant in the form of Exhibit C hereto.
                                                 ---------

"Market Price" of the Common Stock shall equal the average of the five (5)
lowest reported VWAP of the Common Stock for the ten (10) trading days
immediately after the related Put Date.

"Material Adverse Effect" is defined in Section 6.5.

"NASD" means the National Association of Securities Dealers.

"Person" means an individual, corporation, partnership, association, trust,
estate or other entity or organization, including a governmental entity or
agency.

"Put Notice" is defined in Section 4.

"Registration Rights Agreement" means the registration rights agreement in the
form of Exhibit D hereto.
        ---------

"SEC" means the Securities and Exchange Commission.

"SEC Documents" is defined in Section 6.2.

                                      A-1
<PAGE>

"Securities" means the Subscribed Shares, the Warrants and the shares issuable
under the Warrants.

"Securities Act" is as defined in Recital B.

"Share Valuation Date" means the fifth (5th) Business Day after the related Put
Notice Date.

"Subscribed Shares" is defined in Section 2.

"Subsidiaries" is defined in Section 6.5.

"Trading Volume" means the dollar amount of the average daily trading volume of
the Common Stock, calculated based on the average close bid price and average
daily trading volume over the twenty (20) Business Days preceding the related
Put Date, in each case as reported by Bloomberg, LP.

"Transaction Documents" is defined in Section 5.7.

"VWAP" means the daily volume weighted average price (based on a trading day
from 9:30 a.m. to 4:00 p.m., eastern time) of the Company's Common Stock on the
NASDAQ National Market System (or any successor thereto) as reported by
Bloomberg Financial LP using the AQR function.

"Warrants" means the Initial Warrant and the Additional Warrants.

                                      A-2
<PAGE>

                                   Exhibit B
                                   ---------

                            FORM OF INITIAL WARRANT
                            -----------------------

THESE SECURITIES AND THE SECURITIES ISSUABLE UPON THEIR EXERCISE HAVE NOT BEEN
REGISTERED UNDER THE SECURITIES ACT OF 1933 (THE "1933 ACT") AND MAY NOT BE
TRANSFERRED UNLESS COVERED BY AN EFFECTIVE REGISTRATION STATEMENT UNDER THE ACT,
OR TRANSFERRED IN A TRANSACTION MEETING THE REQUIREMENTS OF RULE 144 OF THE ACT
OR OTHERWISE IN ACCORDANCE WITH AN EXEMPTION FROM THE REGISTRATION REQUIREMENTS
OF THE ACT.

                               PlanetRX.com, Inc.

                         COMMON STOCK PURCHASE WARRANT

     1.  Issuance.  In consideration of good and valuable consideration, the
         --------
receipt of which is hereby acknowledged by PLANETRX.COM, INC., a Delaware
corporation (the "Company"), ALPHA VENTURE CAPITAL, INC., (the "Holder") is
hereby granted the right to purchase at any time commencing July [__], 2000
until 5:00 P.M., New York City time, on July [__], 2003 (the "Expiration Date"),
Five Hundred Thousand (500,000) fully paid and nonassessable shares of the
Company's Common Stock, par value $.0001 per share (the "Common Stock") at an
initial exercise price of the lesser of 150% of the average closing bid price of
the Common Stock for the three (3) consecutive trading days prior to the date of
the execution of Common Stock Purchase Agreement, dated as of July [__], 2000
(the "Common Stock Purchase Agreement"), between the Holder and the Company or
120% of the average closing bid price of the Common Stock for the three (3)
consecutive trading days prior to Effective Date of the Registration Statement
or (the "Exercise Price"), subject to further adjustment as set forth in Section
6 hereof.

     2.  Exercise of Warrants.  (a)  This Warrant is exercisable in whole or in
         --------------------
part at the Exercise Price per share of Common Stock payable hereunder, payable
in cash or by certified or official bank check, or by "cashless exercise," by
means of tendering this Warrant to the Company to receive a number of shares of
Common Stock equal to the difference between the Market Value of the shares of
Common Stock issuable upon exercise of this Warrant and the product of the
number of shares issuable upon exercise and the Exercise Price, divided by the
Market Value Per Share.  For example, if Holder receives a warrant to purchase
1,500,000 shares of Common Stock at an Exercise Price of $1.00 and decides to
use the "cashless exercise" method to exercise its option to purchase all
1,500,000 shares at a time when the Company's Common Stock has a Market Value
Per Share of $10.00, Holder would receive 1,350,000 shares of Common Stock upon
exercise.  Upon surrender of this Warrant with the annexed Notice of Exercise
Form duly executed, together with payment of the Exercise Price for the shares
of Common Stock purchased, the Holder shall be entitled to receive a certificate
or certificates for the shares of Common Stock so purchased.  For the purposes
of this Section 2, "Market Value" shall be an amount equal to the Market Value
Per Share multiplied by the number of shares of Common Stock to be issued upon
surrender of this Warrant, and "Market Value Per Share" shall

                                      B-1
<PAGE>

be an amount equal to the average closing sales price of a share of Common Stock
for the ten (10) consecutive trading days preceding the Company's receipt of the
duly executed Notice of Exercise Form.

          (b) For purposes of Rule 144 promulgated under the Securities Act, it
is intended, understood and acknowledged that the Warrant Shares issued in a
cashless exercise transaction shall be deemed to have been acquired by the
Holder and the holding period for the Warrant Shares shall be deemed to have
been commenced, on the issue date.

     3.  Reservation of Shares.  The Company hereby agrees that at all times
         ---------------------
during the term of this Warrant there shall be reserved for issuance upon
exercise of this Warrant such number of shares of its Common Stock as shall be
required for issuance upon exercise of this Warrant (the "Warrant Shares").

     4.  Mutilation or Loss of Warrant.  Upon receipt by the Company of evidence
         -----------------------------
satisfactory to it of the loss, theft, destruction or mutilation of this
Warrant, and (in the case of loss, theft or destruction) receipt of an indemnity
bond or other satisfactory indemnification, and (in the case of mutilation) upon
surrender and cancellation of this Warrant, the Company will execute and deliver
a new Warrant of like tenor and date and any such lost, stolen, destroyed or
mutilated Warrant shall thereupon become void.

     5.  Rights of the Holder.  The Holder shall not, by virtue hereof, be
         --------------------
entitled to any rights of a stockholder in the Company, either at law or equity,
and the rights of the Holder are limited to those expressed in this Warrant and
are not enforceable against the Company except to the extent set forth herein.

     6.  Protection Against Dilution.
         ---------------------------

          (a) Adjustment Mechanism.  If an adjustment of the Exercise Price is
              --------------------
required pursuant to this Section 6, the Holder shall be entitled to purchase
such number of additional shares of Common Stock as will cause (i) the total
number of shares of Common Stock Holder is entitled to purchase pursuant to this
Warrant, multiplied by (ii) the adjusted purchase price per share (the "Adjusted
Exercise Price"), to equal (iii) the total number of shares of Common Stock
Holder is entitled to purchase before adjustment multiplied by the Exercise
Price before adjustment.  For example, if Holder receives a warrant to purchase
1,500,000 shares of Common Stock at an Exercise Price of $1.00 per share, and
the Adjusted Exercise Price is $0.50, Holder will be entitled to receive
3,000,000 shares of Common Stock in exchange for payment of $1.5 million.

          (b) Capital Adjustments.  In case of any stock split or reverse stock
              -------------------
split, stock dividend, reclassification of the Common Stock, recapitalization,
merger or consolidation, or like capital adjustment affecting the Common Stock
of the Company, the provisions of this Section 6 shall be applied as if such
capital adjustment event had occurred immediately prior to the date of this
Warrant and the original purchase price had been fairly allocated to the stock
resulting from such capital adjustment; and in other respects the provisions of
this Section shall be applied in a fair, equitable and reasonable manner so as
to give effect, as nearly as may be, to the purposes hereof.

                                      B-2
<PAGE>

          (c) Adjustment for Spin Off.  If, for any reason, prior to the
              -----------------------
exercise of this Warrant in full, the Company spins off or otherwise divests
itself of a part of its business or operations or disposes all or of a part of
its assets in a transaction (the "Spin Off") in which the Company does not
receive compensation for such business, operations or assets, but causes
securities of another entity (the "Spin Off Securities") to be issued to
security holders of the Company, then the Company shall cause (i) to be reserved
Spin Off Securities equal to the number thereof which would have been issued if
Holder had exercised its right to purchase all of the remaining Common Stock
available to Holder under this Warrant as of the close of business on the
trading day immediately before  the record date (the "Outstanding Warrants") for
determining the amount of the number of Spin Off Securities  to be issued to
security holders of the Company (the "Reserved Spin Off Shares"), and (ii) to be
issued to the Holder upon exercise of all or any of the Outstanding Warrants,
such amount of the Reserved Spin Off Shares equal to (x) the Reserved Spin Off
Shares multiplied by (y) a fraction, of which (I) the numerator is the amount of
the Outstanding Warrants then being exercised, and (II) the denominator is the
Outstanding Warrants.

          (d) Adjustment for Commitment for Subscribed Shares.  If the average
              ------------------------------------------------
closing sales price for the three consecutive Business Days prior to
effectiveness of the initial Registration Statement for the Subscribed Shares is
less than the exercise price set forth in Section 1 above, then the exercise
price of this Warrant shall be such lesser amount.  If the Registration
Statement covering the Subscribed Shares required to be filed by the Company
pursuant to Section 2(a) hereof is not declared effective by December 7, 2000,
then the commitment contained in the Common Stock Purchase Agreement (the
"Commitment") shall terminate and the Subscriber shall retain this Warrant (with
an exercise price equal to the lesser of the amount set forth in Section 1 above
or 90% of the average close bid price of the Common Stock for the three (3)
consecutive Business Days preceding December 7, 2000.

     7.  Transfer to Comply with the Securities Act; Registration Rights.  This
         ---------------------------------------------------------------
Warrant has not been registered under the Securities Act of 1933, as amended,
(the "Act") and has been issued to the Holder for investment and not with a view
to the distribution of either the Warrant or the Warrant Shares.  Neither this
Warrant nor any of the Warrant Shares or any other security issued or issuable
upon exercise of this Warrant may be sold, transferred, pledged or hypothecated
in the absence of an effective registration statement under the Act relating to
such security or an opinion of counsel satisfactory to the Company that
registration is not required under the Act.  Each certificate for the Warrant,
the Warrant Shares and any other security issued or issuable upon exercise of
this Warrant shall contain a legend on the face thereof, in form and substance
satisfactory to counsel for the Company, setting forth the restrictions on
transfer contained in this Section.

     8.  Legends.  So long as the Registration Statement relating to resales of
         -------
any physical certificate or certificates representing the Warrant Shares has
been declared effective by SEC, the Company shall issue such certificate or
certificates with the following legend:

                                      B-3
<PAGE>

          THE SHARES REPRESENTED BY THIS CERTIFICATE MAY NOT BE SOLD,
          TRANSFERRED, PLEDGED, HYPOTHECATED OR OTHERWISE DISPOSED OF
          IN ANY MANNER UNLESS THE HOLDER OR A BROKER, ON BEHALF OF
          THE HOLDER, REPRESENTS THAT IT HAS COMPLIED WITH THE PROSPECTUS
          DELIVERY REQUIREMENTS CONTAINED IN SECTION 5 OF THE SECURITIES
          ACT OF 1933, AS AMENDED, OR UNLESS AN EXEMPTION FROM THE
          REGISTRATION PROVISIONS OF SUCH ACT IS AVAILABLE.

If the Registration Statement relating to resales of any physical certificate or
certificates representing the Warrant Shares is not effective at the time of
issuance, the Company shall issue shall issue such certificate or certificates
with the following legend:

          THESE SECURITIES HAVE NOT BEEN REGISTERED WITH THE SECURITIES AND
          EXCHANGE COMMISSION OR THE SECURITIES COMMISSION OF ANY STATE IN
          RELIANCE UPON AN EXEMPTION FROM REGISTRATION UNDER THE SECURITIES ACT
          OF 1933, AS AMENDED (THE "SECURITIES ACT"), AND, ACCORDINGLY, MAY NOT
          BE OFFERED OR SOLD EXCEPT PURSUANT TO AN EFFECTIVE REGISTRATION
          STATEMENT UNDER THE SECURITIES ACT OR PURSUANT TO AN AVAILABLE
          EXEMPTION FROM, OR IN A TRANSACTION NOT SUBJECT TO, THE REGISTRATION
          REQUIREMENTS OF THE SECURITIES ACT AND IN ACCORDANCE WITH APPLICABLE
          STATE SECURITIES LAWS.

The Company agrees to file one or more registration statements for the Warrant
Shares pursuant to the Registration Rights Agreement, dated as of July [___],
2000, between the Company and the Holder.

     9.  Notices.  Any notice or other communication required or permitted
         -------
hereunder shall be in writing and shall be delivered personally, telegraphed,
telexed, sent by facsimile transmission or sent by certified, registered or
express mail, postage pre-paid.  Any such notice shall be deemed given when so
delivered personally, telegraphed, telexed or sent by facsimile transmission,
or, if mailed, two days after the date of deposit in the United States mails, as
follows:

               If to the Company:

               PlanetRX.com, Inc.
               349 Oyster Point Boulevard, Suite 201
               South San Francisco, CA 94080
               Attn.:  Steve Valenzuela, Sr. VP-Fin.
               Fax No.:  (650) 616-1585

                                      B-4
<PAGE>

               With a copy to:

               PlanetRX.com, Inc.
               349 Oyster Point Boulevard, Suite 201
               South San Francisco, CA 94080
               Attn.: Dorothy An, Esq.
               Fax No.: [_______________]

               If to Purchaser:

               Alpha Venture Capital, Inc.
               [_______________]
               [_______________]
               [_______________]
               Attention:  Mr. Barry Herman, Director
               Fax No.:  [________________]

               With a copy to:

               Krieger & Prager, Esqs.
               39 Broadway, Suite 1440
               New York, NY 10006
               Attention:  Samuel M. Krieger, Esq.
               Fax No.:  (212) 213-2077

Any party may designate another address or person for receipt of notices
hereunder by notice given  to the other parties in accordance with this Section.

     If the Company fails to deliver to the Holder certificate or certificates
representing the Warrant Shares by the third (3rd) trading day after the Date of
Exercise, the company shall pay to such Holder, in cash, as liquidated damages
and not as a penalty, $1,000 for each day after such third (3rd) Trading Day
until such certificates are delivered.  Nothing herein shall limit the Holder's
right to pursue actual damages for the Company's failure to deliver certificates
representing shares of Common Stock upon exercise within the period specified
herein and the Holder shall have the right to pursue all remedies available to
it at law or in equity including, without limitation, a decree of specific
performance and/or injunctive relief.   The exercise of any such rights shall
not prohibit the Holder from seeking to enforce damages pursuant to any other
Section hereof or under applicable law.

     10.  Supplements and Amendments; Whole Agreement.  This Warrant may be
          -------------------------------------------
amended or supplemented only by an instrument in writing signed by the parties
hereto.  This Warrant contains the full understanding of the parties hereto with
respect to the subject matter hereof and there are no representations,
warranties, agreements or understandings other than expressly contained herein.

     11.  Governing Law.  This Warrant shall be deemed to be a contract made
          -------------
under the laws of the State of California and for all purposes shall be governed
by and construed in

                                      B-5
<PAGE>

accordance with the laws of such State applicable to contracts to be made and
performed entirely within such State.

     12.  Counterparts.  This Warrant may be executed in any number of
          ------------
counterparts and each of such counterparts shall for all purposes be deemed to
be an original, and all such counterparts shall together constitute but one and
the same instrument.

     13.  Descriptive Headings.  Descriptive headings of the several Sections of
          --------------------
this Warrant are inserted for convenience only and shall not control or affect
the meaning or construction of any of the provisions hereof.

     14.  Termination of Warrant.  This Warrant shall terminate upon the earlier
          ----------------------
to occur of (A) the date which is three (3) years from the date hereof, and (B)
a breach of Subscriber's obligation to accept and pay for Subscribed Shares
under the Common Stock Purchase Agreement.

                  [REMAINDER OF PAGE INTENTIONALLY LEFT BLANK]

                                      B-6
<PAGE>

     IN WITNESS WHEREOF, the parties hereto have executed this Warrant as of the
day of  [________] day of July, 2000.

                                    PlanetRX.com, Inc.

                                    By:
                                       ------------------------------

                                    Alpha Venture Capital, Inc.

                                    By:
                                       ------------------------------

                                      B-7
<PAGE>

                         NOTICE OF EXERCISE OF WARRANT

     The undersigned hereby irrevocably elects to exercise the right,
represented by the Warrant Certificate dated as of ______________, to purchase
__________ shares of the Common Stock, par value $_______ per share, of
___________________ and tenders herewith payment in accordance with Section 1 of
said Common Stock Purchase Warrant.

     Please deliver the stock certificate to:

Dated:
      -----------------------
By:
   --------------------------

___ CASH:  $____________

                                      B-8
<PAGE>

                                   Exhibit C
                                   ---------

                           FORM OF SUBSEQUENT WARRANT
                           --------------------------

THESE SECURITIES AND THE SECURITIES ISSUABLE UPON THEIR EXERCISE HAVE NOT BEEN
REGISTERED UNDER THE SECURITIES ACT OF 1933 (THE "1933 ACT") AND MAY NOT BE
TRANSFERRED UNLESS COVERED BY AN EFFECTIVE REGISTRATION STATEMENT UNDER THE ACT,
OR TRANSFERRED IN A TRANSACTION MEETING THE REQUIREMENTS OF RULE 144 OF THE ACT
OR OTHERWISE IN ACCORDANCE WITH AN EXEMPTION FROM THE REGISTRATION REQUIREMENTS
OF THE ACT.

                               PlanetRX.com, Inc.

                         COMMON STOCK PURCHASE WARRANT

     1.  Issuance.  In consideration of good and valuable consideration, the
         --------
receipt of which is hereby acknowledged by PANETRX.COM, INC., a Delaware
corporation (the "Company"), ALPHA VENTURE CAPITAL, INC., (the "Holder") is
hereby granted the right to purchase at any time commencing July [__], 2000
until 5:00 P.M., New York City time, on July [__], 2003 (the "Expiration Date"),
_______________ (_______) fully paid and nonassessable shares of the Company's
Common Stock, par value $.0001 per share (the "Common Stock") at an initial
exercise price of 120% of the closing sales price on the date of the related
Closing. (the "Exercise Price"), subject to further adjustment as set forth in
Section 6 hereof.

     2.  Exercise of Warrants.  (a)  This Warrant is exercisable in whole or in
         --------------------
part at the Exercise Price per share of Common Stock payable hereunder, payable
in cash or by certified or official bank check, or by "cashless exercise," by
means of tendering this Warrant to the Company to receive a number of shares of
Common Stock equal to the difference between the Market Value of the shares of
Common Stock issuable upon exercise of this Warrant and the product of the
number of shares issuable upon exercise and the Exercise Price, divided by the
Market Value Per Share.  For example, if Holder receives a warrant to purchase
1,500,000 shares of Common Stock at an Exercise Price of $1.00 and decides to
use the "cashless exercise" method to exercise its option to purchase all
1,500,000 shares at a time when the Company's Common Stock has a Market Value
Per Share of $10.00, Holder would receive 1,350,000 shares of Common Stock upon
exercise.  Upon surrender of this Warrant with the annexed Notice of Exercise
Form duly executed, together with payment of the Exercise Price for the shares
of Common Stock purchased, the Holder shall be entitled to receive a certificate
or certificates for the shares of Common Stock so purchased.  For the purposes
of this Section 2, "Market Value" shall be an amount equal to the Market Value
Per Share multiplied by the number of shares of Common Stock to be issued upon
surrender of this Warrant, and "Market Value Per Share" shall be an amount equal
to the average closing sales price of a share of Common Stock for the ten (10)
consecutive trading days preceding the Company's receipt of the duly executed
Notice of Exercise Form.

                                      C-1
<PAGE>

          (b) For purposes of Rule 144 promulgated under the Securities Act, it
is intended, understood and acknowledged that the Warrant Shares issued in a
cashless exercise transaction shall be deemed to have been acquired by the
Holder and the holding period for the Warrant Shares shall be deemed to have
been commenced, on the issue date.

     3.  Reservation of Shares.  The Company hereby agrees that at all times
         ---------------------
during the term of this Warrant there shall be reserved for issuance upon
exercise of this Warrant such number of shares of its Common Stock as shall be
required for issuance upon exercise of this Warrant (the "Warrant Shares").

     4.  Mutilation or Loss of Warrant.  Upon receipt by the Company of evidence
         -----------------------------
satisfactory to it of the loss, theft, destruction or mutilation of this
Warrant, and (in the case of loss, theft or destruction) receipt of an indemnity
bond or other satisfactory indemnification, and (in the case of mutilation) upon
surrender and cancellation of this Warrant, the Company will execute and deliver
a new Warrant of like tenor and date and any such lost, stolen, destroyed or
mutilated Warrant shall thereupon become void.

     5.  Rights of the Holder.  The Holder shall not, by virtue hereof, be
         --------------------
entitled to any rights of a stockholder in the Company, either at law or equity,
and the rights of the Holder are limited to those expressed in this Warrant and
are not enforceable against the Company except to the extent set forth herein.

     6.  Protection Against Dilution.
         ---------------------------

          (a) Adjustment Mechanism.  If an adjustment of the Exercise Price is
              --------------------
required pursuant to this Section 6, the Holder shall be entitled to purchase
such number of additional shares of Common Stock as will cause (i) the total
number of shares of Common Stock Holder is entitled to purchase pursuant to this
Warrant, multiplied by (ii) the adjusted purchase price per share (the "Adjusted
Exercise Price"), to equal (iii) the total number of shares of Common Stock
Holder is entitled to purchase before adjustment multiplied by the Exercise
Price before adjustment.  For example, if Holder receives a warrant to purchase
1,500,000 shares of Common Stock at an Exercise Price of $1.00 per share, and
the Adjusted Exercise Price is $0.50, Holder will be entitled to receive
3,000,000 shares of Common Stock in exchange for payment of $1.5 million.

          (b) Capital Adjustments.  In case of any stock split or reverse stock
              -------------------
split, stock dividend, reclassification of the Common Stock, recapitalization,
merger or consolidation, or like capital adjustment affecting the Common Stock
of the Company, the provisions of this Section 6 shall be applied as if such
capital adjustment event had occurred immediately prior to the date of this
Warrant and the original purchase price had been fairly allocated to the stock
resulting from such capital adjustment; and in other respects the provisions of
this Section shall be applied in a fair, equitable and reasonable manner so as
to give effect, as nearly as may be, to the purposes hereof.

          (c) Adjustment for Spin Off.  If, for any reason, prior to the
              -----------------------
exercise of this Warrant in full, the Company spins off or otherwise divests
itself of a part of its business or operations or disposes all or of a part of
its assets in a transaction (the "Spin Off") in which the

                                      C-2
<PAGE>

Company does not receive compensation for such business, operations or assets,
but causes securities of another entity (the "Spin Off Securities") to be issued
to security holders of the Company, then the Company shall cause (i) to be
reserved Spin Off Securities equal to the number thereof which would have been
issued if Holder had exercised its right to purchase all of the remaining Common
Stock available to Holder under this Warrant as of the close of business on the
trading day immediately before the record date (the "Outstanding Warrants") for
determining the amount of the number of Spin Off Securities to be issued to
security holders of the Company (the "Reserved Spin Off Shares"), and (ii) to be
issued to the Holder upon exercise of all or any of the Outstanding Warrants,
such amount of the Reserved Spin Off Shares equal to (x) the Reserved Spin Off
Shares multiplied by (y) a fraction, of which (I) the numerator is the amount of
the Outstanding Warrants then being exercised, and (II) the denominator is the
Outstanding Warrants.

     7.  Transfer to Comply with the Securities Act; Registration Rights.  This
         ---------------------------------------------------------------
Warrant has not been registered under the Securities Act of 1933, as amended,
(the "Act") and has been issued to the Holder for investment and not with a view
to the distribution of either the Warrant or the Warrant Shares.  Neither this
Warrant nor any of the Warrant Shares or any other security issued or issuable
upon exercise of this Warrant may be sold, transferred, pledged or hypothecated
in the absence of an effective registration statement under the Act relating to
such security or an opinion of counsel satisfactory to the Company that
registration is not required under the Act.  Each certificate for the Warrant,
the Warrant Shares and any other security issued or issuable upon exercise of
this Warrant shall contain a legend on the face thereof, in form and substance
satisfactory to counsel for the Company, setting forth the restrictions on
transfer contained in this Section.

     8.  Legends.  So long as the Registration Statement relating to resales of
         -------
any physical certificate or certificates representing the Warrant Shares has
been declared effective by SEC, the Company shall issue such certificate or
certificates with the following legend:

          THE SHARES REPRESENTED BY THIS CERTIFICATE MAY NOT BE SOLD,
          TRANSFERRED, PLEDGED, HYPOTHECATED OR OTHERWISE DISPOSED OF IN ANY
          MANNER UNLESS THE HOLDER OR A BROKER, ON BEHALF OF THE HOLDER,
          REPRESENTS THAT IT HAS COMPLIED WITH THE PROSPECTUS DELIVERY
          REQUIREMENTS CONTAINED IN SECTION 5 OF THE SECURITIES ACT OF 1933, AS
          AMENDED, OR UNLESS AN EXEMPTION FROM THE REGISTRATION PROVISIONS OF
          SUCH ACT IS AVAILABLE.

If the Registration Statement relating to resales of any physical certificate or
certificates representing the Warrant Shares is not effective at the time of
issuance, the Company shall issue shall issue such certificate or certificates
with the following legend:

                                      C-3
<PAGE>

          THESE SECURITIES HAVE NOT BEEN REGISTERED WITH THE SECURITIES AND
          EXCHANGE COMMISSION OR THE SECURITIES COMMISSION OF ANY STATE IN
          RELIANCE UPON AN EXEMPTION FROM REGISTRATION UNDER THE SECURITIES ACT
          OF 1933, AS AMENDED (THE "SECURITIES ACT"), AND, ACCORDINGLY, MAY NOT
          BE OFFERED OR SOLD EXCEPT PURSUANT TO AN EFFECTIVE REGISTRATION
          STATEMENT UNDER THE SECURITIES ACT OR PURSUANT TO AN AVAILABLE
          EXEMPTION FROM, OR IN A TRANSACTION NOT SUBJECT TO, THE REGISTRATION
          REQUIREMENTS OF THE SECURITIES ACT AND IN ACCORDANCE WITH APPLICABLE
          STATE SECURITIES LAWS.

The Company agrees to file one or more registration statements for the Warrant
Shares pursuant to the Registration Rights Agreement, dated as of July [___],
2000, between the Company and the Holder.

     9.  Notices.  Any notice or other communication required or permitted
         -------
hereunder shall be in writing and shall be delivered personally, telegraphed,
telexed, sent by facsimile transmission or sent by certified, registered or
express mail, postage pre-paid.  Any such notice shall be deemed given when so
delivered personally, telegraphed, telexed or sent by facsimile transmission,
or, if mailed, two days after the date of deposit in the United States mails, as
follows:

               If to the Company:

               PlanetRX.com, Inc.
               349 Oyster Point Boulevard, Suite 201
               South San Francisco, CA 94080
               Attn.:  Steve Valenzuela, Sr. VP-Fin.
               Fax No.:  (650) 616-1585

                                      C-4
<PAGE>

               With a copy to:

               PlanetRX.com, Inc.
               349 Oyster Point Boulevard, Suite 201
               South San Francisco, CA 94080
               Attn.: Dorothy An, Esq.
               Fax No.: [_______________]

               If to Purchaser:

               Alpha Venture Capital, Inc.
               [_______________]
               [_______________]
               [_______________]
               Attention:  Mr. Barry Herman, Director
               Fax No.:  [________________]

               With a copy to:

               Krieger & Prager, Esqs.
               39 Broadway, Suite 1440
               New York, NY 10006
               Attention:  Samuel M. Krieger, Esq.
               Fax No.:  (212) 213-2077

Any party may designate another address or person for receipt of notices
hereunder by notice given  to the other parties in accordance with this Section.

     If the Company fails to deliver to the Holder certificate or certificates
representing the Warrant Shares by the third (3rd) trading day after the Date of
Exercise, the company shall pay to such Holder, in cash, as liquidated damages
and not as a penalty, $1,000 for each day after such third (3rd) Trading Day
until such certificates are delivered.  Nothing herein shall limit the Holder's
right to pursue actual damages for the Company's failure to deliver certificates
representing shares of Common Stock upon exercise within the period specified
herein and the Holder shall have the right to pursue all remedies available to
it at law or in equity including, without limitation, a decree of specific
performance and/or injunctive relief.   The exercise of any such rights shall
not prohibit the Holder from seeking to enforce damages pursuant to any other
Section hereof or under applicable law.

     10.  Supplements and Amendments; Whole Agreement.  This Warrant may be
          -------------------------------------------
amended or supplemented only by an instrument in writing signed by the parties
hereto.  This Warrant contains the full understanding of the parties hereto with
respect to the subject matter hereof and there are no representations,
warranties, agreements or understandings other than expressly contained herein.

     11.  Governing Law.  This Warrant shall be deemed to be a contract made
          -------------
under the laws of the State of California and for all purposes shall be governed
by and construed in accordance with the laws of such State applicable to
contracts to be made and performed entirely within such State.

                                      C-5
<PAGE>

     12.  Counterparts.  This Warrant may be executed in any number of
          ------------
counterparts and each of such counterparts shall for all purposes be deemed to
be an original, and all such counterparts shall together constitute but one and
the same instrument.

     13.  Descriptive Headings.  Descriptive headings of the several Sections of
          --------------------
this Warrant are inserted for convenience only and shall not control or affect
the meaning or construction of any of the provisions hereof.

     14.  Termination of Warrant.  This Warrant shall terminate upon the earlier
          ----------------------
to occur of (A) the date which is three (3) years from the date hereof, and (B)
a breach of Subscriber's obligation to accept and pay for Subscribed Shares
under the Common Stock Purchase Agreement.

                  [REMAINDER OF PAGE INTENTIONALLY LEFT BLANK]

                                      C-6
<PAGE>

     IN WITNESS WHEREOF, the parties hereto have executed this Warrant as of the
day of  [________] day of July, 2000.

                                    PlanetRX.com, Inc.

                                    By:
                                       ------------------------

                                    Alpha Venture Capital, Inc.

                                    By:
                                       -------------------------

                                      C-7
<PAGE>

                         NOTICE OF EXERCISE OF WARRANT

     The undersigned hereby irrevocably elects to exercise the right,
represented by the Warrant Certificate dated as of ______________, to purchase
__________shares of the Common Stock, par value $_______ per share, of
___________________ and tenders herewith payment in accordance with Section 1 of
said Common Stock Purchase Warrant.

     Please deliver the stock certificate to:

Dated:
      ------------------------
By:
   ---------------------------

___ CASH:  $_____________

                                      C-8<PAGE>

                                                                    EXHIBIT 10.1

                                                 Loan Identification No.: GK4712

                    UNSECURED LINE OF CREDIT LOAN AGREEMENT

                                  By and Among

                             BRE PROPERTIES, INC.,

                                  as Borrower,

 the several financial institutions from time to time party to this Agreement,

                                   as Banks,

                                      and

                     BANK OF AMERICA, NATIONAL ASSOCIATION,

                            as Administrative Agent

                                      and

              COMMERZBANK AG, as Syndication Agent and Co-Arranger

                                      and

               BANC OF AMERICA SECURITIES LLC, as Lead Arranger
                             and Sole Book Manager

                            Dated as of June 1, 2000
<PAGE>

                               TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                                                                                                Page
                                                                                                                                ----
<S>                                                                                                                              <C>
    1.  CREDIT FACILITIES AMOUNTS AND TERMS...................................................................................... 12
   1.1  Line of Credit Amount.................................................................................................... 12
   1.2  The Credit Facilities.................................................................................................... 12
   1.3  Procedure for Borrowing.................................................................................................. 14
   1.4  Interest Rates........................................................................................................... 14
   1.5  Prepayments.............................................................................................................. 15
   1.6  Usury.................................................................................................................... 15
   1.7  Increased Costs and Reduction of Return.................................................................................. 15

    2.  FEES, EXPENSES........................................................................................................... 16
   2.1  Commitment Fee.  Borrower shall pay to Agent, for Agent's own account, a commitment fee as set forth in a separate
        letter understanding between Borrower and Agent.......................................................................... 16
   2.2  Costs and Expenses....................................................................................................... 16
   2.3  Indemnification by Borrower.............................................................................................. 16

    3.  DISBURSEMENTS AND PAYMENTS............................................................................................... 17
   3.1  Requests for Credit...................................................................................................... 17
   3.2  Disbursement and Payment Record; Loan Account............................................................................ 17
   3.3  Authorization............................................................................................................ 18
   3.4  Banking Days............................................................................................................. 18
   3.5  Payments................................................................................................................. 18

    4.  CONDITIONS............................................................................................................... 21
   4.1  Conditions Precedent to Initial Funding Date on or after the Effective Date.............................................. 21
   4.2  Conditions to All Borrowings............................................................................................. 23

    5.  REPRESENTATIONS AND WARRANTIES........................................................................................... 23
   5.1  Organization of Borrower; Good Standing.................................................................................. 23
   5.2  Authorization; Enforceable Agreement..................................................................................... 23
   5.3  Financial Information.................................................................................................... 24
   5.4  Lawsuits................................................................................................................. 24
   5.5  Title to Assets.......................................................................................................... 25
   5.6  Permits, Franchises...................................................................................................... 25
   5.7  Income Tax Returns....................................................................................................... 25
   5.8  ERISA Plans.............................................................................................................. 25
</TABLE>

                                      -i-
<PAGE>

                               Table of Contents
                                  (Continued)

<TABLE>
<CAPTION>
                                                                                                                                Page
                                                                                                                                ----
<S>                                                                                                                             <C>
  5.9   Other Obligations........................................................................................................ 26
  5.10  Event of Default......................................................................................................... 26
  5.11  Status as a REIT......................................................................................................... 26

    6.  COVENANTS................................................................................................................ 26
   6.1  Use of Proceeds.......................................................................................................... 26
   6.2  Financial Information.................................................................................................... 26
   6.3  Other Information........................................................................................................ 28
   6.4  Financial Covenants...................................................................................................... 28
   6.5  Taxes and Other Liabilities.............................................................................................. 31
   6.6  Notices to Agent......................................................................................................... 31
   6.7  Audits; Books and Records................................................................................................ 31
   6.8  Compliance with Laws..................................................................................................... 32
   6.9  Preservation of Rights................................................................................................... 32
  6.10  Maintenance of Properties................................................................................................ 32
  6.11  Insurance................................................................................................................ 32
  6.12  ERISA Plans.............................................................................................................. 32
  6.13  Indemnity of Guarantors.................................................................................................. 33
  6.14  Additional Negative Covenants............................................................................................ 33
  6.15  Continued Status as a REIT; Prohibited Transactions...................................................................... 34
  6.16  NYSE Listed Company...................................................................................................... 34
  6.17  Conduct of Business...................................................................................................... 35
  6.18  Delivery of Guaranties and Other Documents............................................................................... 35
  6.19  Cooperation.............................................................................................................. 35

    7.  COLLATERAL............................................................................................................... 36
   7.1  Collateral............................................................................................................... 36

    8.  DEFAULT.................................................................................................................. 36
   8.1  Failure to Pay........................................................................................................... 36
   8.2  False Information........................................................................................................ 36
   8.3  Bankruptcy............................................................................................................... 36
   8.4  Receivers; Dissolution................................................................................................... 37
   8.5  Lawsuits................................................................................................................. 37
   8.6  Judgments................................................................................................................ 37
   8.7  ERISA Plans.............................................................................................................. 37
   8.8  Government Action........................................................................................................ 38
</TABLE>

                                     -ii-
<PAGE>

                               Table of Contents
                                  (Continued)

<TABLE>
<CAPTION>
                                                                                                                                Page
                                                                                                                                ----
<S>                                                                                                                            <C>
  8.9   Material Adverse Change.................................................................................................. 38
  8.10  Other Breach Under This Agreement or Other Loan Documents................................................................ 38
  8.11  Cross-Default............................................................................................................ 38

    9.  ENFORCING THIS AGREEMENT................................................................................................. 38
   9.1  Remedies................................................................................................................. 38

   10.  APPOINTMENT AND AUTHORIZATION OF AGENT................................................................................... 39
  10.1  Appointment.............................................................................................................. 39
  10.2  Powers................................................................................................................... 39
  10.3  Limitation on Duties..................................................................................................... 39
  10.4  Co-Lender Agreement...................................................................................................... 40
  10.5  Resignation; Replacement................................................................................................. 40

   11.  ASSIGNMENTS, PARTICIPATIONS, ETC......................................................................................... 40
  11.1  Assignments.............................................................................................................. 40
  11.2  Effects of Assignment.................................................................................................... 41
  11.3  Participations........................................................................................................... 41
  11.4  Pledges.................................................................................................................. 42

   12.  MISCELLANEOUS............................................................................................................ 42
  12.1  California Law........................................................................................................... 42
  12.2  WAIVER OF RIGHT TO TRIAL BY JURY......................................................................................... 42
  12.3  Presentment, Demands and Notice.......................................................................................... 43
  12.4  Attorneys' Fees.......................................................................................................... 43
  12.5  Integration.............................................................................................................. 43
  12.6  Electronic Notices....................................................................................................... 43
  12.7  Notices.................................................................................................................. 43
  12.8  Certain Acknowledgments by Borrower...................................................................................... 44
  12.9  Successors and Assigns................................................................................................... 44
 12.10  No Third Parties Benefited............................................................................................... 44
 12.11  Integration; Relation to Any Loan Commitment; Headings................................................................... 44
 12.12  Interpretation........................................................................................................... 45
 12.13  Severability; Waivers; Amendments........................................................................................ 46
 12.14  Publicity; Confidentiality............................................................................................... 46
 12.15  Counterparts............................................................................................................. 47
</TABLE>

                                     -iii-
<PAGE>

                             EXHIBITS AND SCHEDULES

     EXHIBITS:

     A.  Form of Borrowing Notice
     B.  Form of Guaranty
     C.  Form of Notice of Assignment
     D.  Form of Assignment and Assumption

     SCHEDULES:

     I.  Lending Offices

     1.   Material Borrower Entities, Other Guarantors, and Other Unencumbered
          Property Owners
<PAGE>

                                   UNSECURED
                         LINE OF CREDIT LOAN AGREEMENT

     THIS UNSECURED LINE OF CREDIT LOAN AGREEMENT ("Agreement") is entered into
as of June 1, 2000, among BRE PROPERTIES, INC., a Maryland corporation
("Borrower"); the several financial institutions identified on the signature
pages hereto as "Banks" (collectively, the "Banks", and individually a "Bank");
and BANK OF AMERICA, NATIONAL ASSOCIATION, a national banking association
("BofA"), in its capacity as a Bank and as administrative agent for the Banks
(in that capacity, "Agent").

                                   RECITALS:

     A.  Borrower and BofA are parties to that certain Amended and Restated
Unsecured Line of Credit Agreement dated as of October 21, 1998 ("Primary
Agreement").  The Primary Agreement provides for a $400,000,000 line of credit
to be made available to Borrower by BofA and other participating financial
institutions ("Primary Facility").  All documents, instruments and agreements
which evidence or support the obligations of Borrower in respect of the Primary
Facility shall be referred to hereinafter as the "Primary Loan Documents."

     B.  Borrower has requested that Banks extend an unsecured short-term
revolving loan facility (separate from the Primary Facility), available in one
or more advances to Borrower, the proceeds of which will be used in accordance
with this Agreement, and Banks are willing to extend this facility on the terms
and conditions set forth herein.

     NOW, THEREFORE, the parties agree as follows:

                              CERTAIN DEFINITIONS
                              -------------------

     The following terms used in this Agreement shall have the following
meanings (such meanings to be applicable, except to the extent otherwise
indicated in a definition of a particular term, both to the singular and the
plural forms of the terms defined; other terms are defined elsewhere in the
Agreement, and capitalized terms that are used herein without definition but
that are defined in the Note or the Guaranty have the definitions ascribed to
them therein):

     "Accommodation Obligations", as applied to any Person, means any
      -------------------------
Indebtedness or other Contractual Obligation or liability, contingent or
otherwise, of another Person in respect of which that Person is liable,
including, without limitation, any such indebtedness, obligation or liability
directly or indirectly guaranteed, endorsed (otherwise than for collection or
deposit in the ordinary course of business), co-made or discounted or sold with
recourse by that Person, or in respect of which that Person is otherwise
<PAGE>

directly or indirectly liable, including in respect of any partnership in which
that Person is a general partner, Contractual Obligations (contingent or
otherwise) arising through any agreement to purchase, repurchase or otherwise
acquire such indebtedness, obligation or liability or any security therefor, or
to provide funds for the payment or discharge thereof (whether in the form of
loans, advances, stock purchases, capital contributions or otherwise), or to
maintain solvency, assets, level of income, or other financial condition, or to
make payment other than for value received.

     "Advance" means any advance of proceeds of a Committed Loan made pursuant
      -------
to the terms of the Loan Documents.

     "Affiliate" means, as to any Person, any other Person which, directly or
      ---------
indirectly, is in control of, is controlled by, or is under common control with,
such Person.  A Person shall be deemed to control another Person if the
controlling Person possesses, directly or indirectly, the power to direct or
cause the direction of the management and policies of the other Person, whether
through the ownership of voting securities, membership interests, by contract,
or otherwise.

     "Agent" means BofA in its capacity as agent for the Banks hereunder, and
      -----
any successor agent.

     "Agent-Related Persons" means BofA and any successor agent hereunder,
      ---------------------
together with their respective Affiliates and the officers, directors, employees
and agents of such Persons.

     "Agent's Payment Office" means the address for payments set forth herein
      ----------------------
for Agent, or such other address as Agent may specify.

     "Applicable Capitalization Rate" means, for any real property asset, 9.25%,
      ------------------------------
or such rate(s) as the Majority Banks, taking into consideration such factors as
the location and type of such real estate asset, may establish from time to time
(but no more often than once in any calendar year) as the applicable
capitalization rate for all or a particular type of real property asset.

     "Applicable Margin" has the meaning given to such term in the Note.
      -----------------

     "Availability Period" means the period commencing on the Effective Date and
      -------------------
ending on the Maturity Date, subject to earlier termination in accordance with
the provisions of the Loan Documents.

     "Bank" has the meaning specified in the introductory sentence of this
      ----
Agreement; BofA in its capacity as a lender hereunder is one of the Banks.

     "BofA" means Bank of America, National Association, a national banking
      ----
association.

                                      -2-
<PAGE>

     "Borrower Entity" means each Person, other than a Joint Venture Entity, in
      ---------------
which Borrower, directly or indirectly, has made an Investment, whether or not
under GAAP the financial results of such Person are reported on a consolidated
basis with the results of Borrower; provided, however, that in no event shall
Cambridge Park, LLC, be considered a Borrowing Entity under this Agreement.

     "Borrowing"  means a borrowing hereunder consisting of Advances made to
      ---------
Borrower on the same day and (except in the case of Committed Loans accruing
interest at the Reference-based Rate) having the same Rate Period.

     "Capital Adequacy Regulation" means any guideline or directive of any
      ---------------------------
central bank or other Governmental Authority, or any other law, rule or
regulation regarding capital adequacy of a Bank or of any corporation
controlling a Bank.

     "Charter Documents" means, with respect to any Person, such Person's
      -----------------
partnership agreement (if any), articles or certificate of incorporation or
organization or other document required to effect the formation of such Person
(including all certificates of determination or other instruments relating to
the rights of preferred stockholders of such Person) (if any), by-laws (if any),
and any operating agreement, management agreement or other agreement among any
stockholders or other holders of any interest in such Person, in their
respective capacities as such, in each case, as at any time amended or restated.

     "Co-Lender Agreement" has the meaning ascribed to it in Section 10.4.
      -------------------

     "Committed Loan" means an Advance made by the Banks pursuant to the Line of
      --------------
Credit described in Section 1.1.

     "Committed Loan Availability" means, at any time, the Maximum Loan Amount
      ---------------------------
less the aggregate principal amount of all Committed Loans then outstanding.

     "Commitment" means the amount of the Line of Credit for which each Bank is
      ----------
obligated.

     "Consolidated" means, with respect to any Person, that such Person's
      ------------
financial results are consolidated (or required to be consolidated) under GAAP
with the financial results of Borrower.

     "Contractual Obligation", as applied to any Person, means any provision of
      ----------------------
any securities issued by that Person or any indenture, mortgage, deed of trust,
lease, contract, undertaking, document or instrument to which that Person is a
party or by which it or any of its properties is bound, or to which it or any of
its properties is subject.

     "Controlled" means, as applied to any Borrower Entity or Joint Venture
      ----------
Entity, (i) that Borrower, or another Person that is Controlled by Borrower, (a)
owns at least fifty

                                      -3-
<PAGE>

percent (50%) of the outstanding equity interests in such Borrower Entity or
Joint Venture Entity, and (b) serves as a managing partner, managing member,
trustee or in any similar capacity, however denominated, of such Borrower Entity
or Joint Venture Entity, and (ii) that Borrower, or such other Controlled
Person, has discretion and authority, under such Borrower Entity's or Joint
Venture Entity's Charter Documents, to cause such Borrower Entity or Joint
Venture Entity to encumber or sell such Borrower Entity's or Joint Venture
Entity's real property (subject, in the case of BRE Property Investors LLC, to
any contractual restrictions on taxable sales or exchanges of property set forth
in its Charter Documents, as in effect on the date hereof; and "Control" has a
correlative meaning.

     "CPA" means Ernst & Young, LLP, any other "big five" accounting firm or
      ---
another firm of certified public accountants of national standing selected by
Borrower and acceptable to the Majority Banks.

     "Current Value Method" means, with respect to each real property asset as
      --------------------
of any date:  (i) if such real property has not been operated under ownership by
Borrower, a Controlled Borrower Entity or a Controlled Joint Venture Entity for
at least three (3) months, or is a completed building that is part of a larger
development project that remains under construction, on a cost basis, as
reflected in such owner's books in accordance with GAAP; and (ii) in any other
case, capitalization of the Net Operating Income for such real property for the
four (4) most recent calendar quarters (or, if Borrower, a Controlled Borrower
Entity or a Controlled Joint Venture Entity has owned a real property asset for
less than such time period, then the annualized Net Operating Income for such
real property based on the period of ownership by such Person), as certified by
Borrower to Agent and the Banks, at an annual rate equal to the Applicable
Capitalization Rate.

     "Debt Service" means, for the most recent three (3) month period, Interest
      ------------
Expense for such period plus scheduled or otherwise required principal
amortization (i.e., excluding any balloon payment due at maturity) for such
period on all of Borrower's Indebtedness, determined on a consolidated basis,
plus all dividends accrued during such period in respect of any and all
outstanding preferred shares of Borrower, whether or not declared or paid.

     "EBITDA" means, for the most recent three (3) month period, (i) the sum of
      ------
(a) Borrower's consolidated net income as determined in accordance with GAAP,
(b) depreciation and amortization expense and other non-cash items deducted on
Borrower's consolidated financial statements in determining such net income, (c)
interest expense (as it appears on Borrower's consolidated income statement in
accordance with GAAP), and (d) taxes imposed by any jurisdiction upon Borrower's
or any Consolidated Borrower Entity's or Consolidated Joint Venture Entity's net
income, absent the effect of extraordinary items or asset sales or write-ups or
forgiveness of Indebtedness; minus (ii) the sum of (a) $50 per apartment unit in
the case of a real property asset, owned by

                                      -4-
<PAGE>

Borrower or any Consolidated Borrower Entity or Consolidated Joint Venture
Entity, that is improved with an apartment project, and (b) in the case of any
other real property asset owned by Borrower or any Consolidated Borrower Entity
or Consolidated Joint Venture Entity, $0.125 for each rentable square foot of
the improvements thereon. (All references in this Agreement to "apartment
project" shall be understood to mean multi-family residential properties held
for rental.)

     "Effective Date" means the date on which this Agreement has been executed
      --------------
and delivered by each of the parties hereto and the conditions precedent to the
initial Advance hereunder set forth in Section 4.1 have been satisfied.

     "Eligible Assignee" means (i) a commercial bank or investment bank
      -----------------
organized under the laws of the United States, or any state thereof, and having
a combined capital and surplus of at least $100,000,000; (ii) a Person that is
primarily engaged in the business of commercial banking and is an Affiliate of a
Bank; and (iii) any other Person approved by Majority Banks and Agent.

     "Event of Default" has the meaning given to it in Section 8.
      ----------------

     "Funding Date" means with respect to any Advance, the date of the funding
      ------------
of such Advance.

     "Funds From Operations" means, for any period, Borrower's consolidated net
      ---------------------
income (computed in accordance with GAAP), excluding gains (or losses) from debt
restructuring and sales of property, plus depreciation and amortization, and
after adjustments for unconsolidated Borrower Entities and unconsolidated Joint
Venture Entities.  (Adjustments for unconsolidated partnerships and
unconsolidated Joint Venture Entities shall be calculated to reflect funds from
operations on the same basis.)

     "GAAP" means generally accepted accounting principles set forth in the
      ----
opinions and pronouncements of the Accounting Principles Board and the American
Institute of Certified Public Accountants and statements and pronouncements of
the Financial Accounting Standards Board, or in such other statements by such
other entity as may be in general use by significant segments of the accounting
profession, which are applicable to the circumstances as of the date of
determination.

     "Governmental Authority" means any government, state or other political
      ----------------------
subdivision thereof, any central bank (or similar monetary or regulatory
authority) thereof, any entity exercising executive, legislative, judicial,
regulatory or administrative functions of or pertaining to government, and any
entity owned or controlled through capital ownership or otherwise by any of the
foregoing.

                                      -5-
<PAGE>

     "Guaranty" means a guaranty of Borrower's obligations under the Loan
      --------
Documents, executed by one or more Borrower Entities or Joint Venture Entities,
in substantially the form of Exhibit B.

     "Guarantor" means each Borrower Entity or Joint Venture Entity that is a
      ---------
party to a Guaranty.

     "Indebtedness", as applied to any Person (and without duplication), means
      ------------
(i) all indebtedness, obligations or other liabilities for borrowed money, (ii)
all indebtedness, obligations or other liabilities evidenced by notes, bonds,
debentures or other similar instruments, (iii) all reimbursement obligations and
other liabilities with respect to letters of credit, bankers' acceptances,
surety bonds or similar instruments issued for such Person's account, (iv) all
obligations to pay the deferred purchase price of property or services, (v) all
obligations in respect of capital leases, (vi) all Accommodation Obligations,
and (vii) all indebtedness, obligations or other liabilities of such Person or
others secured by a Lien on any asset of such Person, whether or not such
indebtedness, obligations or liabilities are assumed by, or are a personal
liability of, such Person (including, without limitation, the principal amount
of any assessment or similar indebtedness encumbering any asset); provided that,
in determining the amount of any Person's indebtedness under clause (ii) of this
definition in respect of construction financing, only the outstanding principal
amount of such construction financing (and not the unused portion of the related
commitment) shall be included.

     "Indemnified Liabilities" has the meaning given in Section 2.3.
      -----------------------

     "Indemnified Person" has the meaning given in Section 2.3.
      ------------------

     "Intangible Assets" means all assets that would be classified as intangible
      -----------------
assets under GAAP, including, without limitation, goodwill, patents, trademarks,
trade names, copyrights and franchises, treasury stock held by Borrower or any
Consolidated Borrower Entity or Consolidated Joint Venture Entity, and deferred
charges (including but not limited to unamortized debt discount and expense,
organization expenses, experimental and development expenses, but excluding
prepaid expenses).

     "Interest Expense" means, for any period, the total interest expense of
      ----------------
Borrower, whether paid, accrued or capitalized (including the interest component
of capital leases and including interest-related costs such as amounts payable
under interest rate swaps, caps or other derivatives and loan fees, to the
extent that such costs are permitted to be amortized under GAAP, but excluding
amounts, such as prepayment premiums and breakage fees, that are not permitted
to be amortized under GAAP), for such period, determined on a consolidated
basis.

     "Investment" means in the case of each Borrower Entity and Joint Venture
      ----------
Entity, Borrower's total investment therein determined on the basis of actual
cost, including all

                                      -6-
<PAGE>

equity contributions, loans, advances and guaranties or other contractual
undertakings in the nature thereof, whether funded or committed.

     "Joint Venture Entity" means a Person (i) in which Borrower, directly or
      --------------------
indirectly, has made an Investment, whether or not under GAAP the financial
results of such Person should be reported on a consolidated basis with those of
Borrower, and (ii) which is in substance a joint venture, formed for the sole
purpose of developing apartment projects, with a Person, other than an Affiliate
of Borrower, that is (a) a regulated insurance company or a regulated financial
institution or other Person generally recognized as an "institutional investor,"
in each case, that is engaged in the ordinary course of its business (directly
or through wholly-owned subsidiaries) in real estate investment activities, or
(b) a wholly-owned Subsidiary of any such insurance company or other financial
institution or institutional investor; provided, however, that in no event shall
Cambridge Park, LLC, be considered a Joint Venture Entity under this Agreement.

     "Lending Office" means, as to any Bank, the office specified as its Lending
      --------------
Office on Schedule I or as such Person may designate to Borrower and Agent.

     "Lien" means any mortgage, deed of trust, pledge, hypothecation,
      ----
assignment, deposit arrangement, security interest, encumbrance, preference,
priority or other security agreement or preferential arrangement of any kind or
nature whatsoever, including without limitation any conditional sale or other
title retention agreement, the interest of a lessor under a capital lease, any
financing lease having substantially the same economic effect as any of the
foregoing, and the filing of any financing statement or document having similar
effect (other than a financing statement filed by a "true" lessor pursuant to
Section 9408 of the Uniform Commercial Code) naming the owner of the asset to
which such Lien relates as debtor, under the Uniform Commercial Code or other
comparable law of any jurisdiction.

     "LIBOR Alternative " has the meaning given to such term in the Note.
      ------------------

     "LIBOR Loan" means a Loan bearing interest, at all times during an interest
      ----------
period applicable to such Loan, at a fixed rate of interest based on the LIBOR
Alternative.

     "Line of Credit" means the line of credit described in Section 1.1.
      --------------

     "Loan" means, collectively, all Advances hereunder from time to time
      ----
outstanding under the Line of Credit.

     "Loan Documents" means this Agreement, the Note, each Guaranty and all
      --------------
other agreements, instruments and documents (together with amendments and
supplements thereto and replacements thereof) now or hereafter executed by
Borrower or any

                                      -7-
<PAGE>

Guarantor which evidence or support the obligations of Borrower in respect of
the credit facilities made available to Borrower pursuant hereto.

     "Majority Banks" means, at any time, a Bank or Banks then having in excess
      --------------
of 66 2/3% of the Commitments (or, if the Commitments have been terminated
pursuant to the Loan Documents, holding in excess of 66 2/3% of the then
aggregate unpaid principal amount of the Advances.

     "Material Adverse Effect" means, with respect to a Person, a material
      -----------------------
adverse effect upon the condition (financial or otherwise), operations,
performance or properties of such Person or its ability to perform its
obligations under the Loan Documents.  The phrase "has a Material Adverse
Effect" or "will result in a Material Adverse Effect" or words substantially
similar thereto shall in all cases be intended to mean "has resulted, or will or
could reasonably be anticipated to result, in a Material Adverse Effect", and
the phrase "has no (or does not have a) Material Adverse Effect" or "will not
result in a Material Adverse Effect" or words substantially similar thereto
shall in all cases be intended to mean "does not or will not or could not
reasonably be anticipated to result in a Material Adverse Effect".

     "Material Borrower Entity" means a Borrower Entity as to which either of
      ------------------------
the following conditions exists:  (i) Borrower's pro rata share of the
consolidated assets of such Person (as reflected on the GAAP-prepared financial
statements of such Borrower Entity) exceeds $30,000,000 at the end of any fiscal
quarter, with "pro rata" share being Borrower's effective percentage ownership
of such Person; or (ii) Borrower's pro rata share of such Person's consolidated
net income exceeds five percent (5%) of Borrower's consolidated net income for
the immediately preceding four fiscal quarters, determined in accordance with
GAAP.

     "Maturity Date" means December 1, 2000.
      -------------

     "Maximum Loan Amount" has the meaning ascribed to it in Section 1.1(a).
      -------------------

     "Net Offering Proceeds" means all cash proceeds received by Borrower as a
      ---------------------
result of the sale of common, preferred or other classes of stock in Borrower
(if and only to the extent reflected in stockholders' equity on the consolidated
balance sheet of Borrower prepared in accordance with GAAP), minus (i)
attorneys' fees and disbursements, (ii) accountants' fees, (iii) underwriters'
or placement agents' fees, discounts or commissions, (iv) brokerage,
consultants' and other fees, and (v) printing, registration and related
expenses, in each case, actually incurred in connection with such sale.

     "Net Operating Income" means, at any time with respect to any real property
      --------------------
asset, the cash-basis net operating income of such real property determined on a
basis consistent with the operating statements provided by Borrower to Agent
prior to the Effective Date, adjusted as follows:  (i) by deducting, in respect
of capital reserves, on an

                                      -8-
<PAGE>

annualized basis: (a) $200 per apartment unit in the case of a real property
asset improved with an apartment project, and (b) in the case of any other real
property asset, $0.50 for each rentable square foot of the improvements thereon;
and (ii) by deducting (to the extent not already deducted in determining such
net operating income) actual management fees paid in respect of the management
of such real property asset for the period in question.

     "Non-Recourse Indebtedness" means, with respect to any Person, Indebtedness
      -------------------------
of that Person with respect to which recourse to such Person for payment is
contractually limited to specific assets encumbered by a Lien securing such
Indebtedness.  Notwithstanding the foregoing, Indebtedness of any Person shall
not fail to constitute Non-Recourse Indebtedness by reason of the inclusion in
any document evidencing, governing, securing or otherwise relating to such
Indebtedness to the effect that such Person shall be liable, beyond the assets
securing such Indebtedness, for (i) misapplied moneys, including insurance and
condemnation proceeds and security deposits, (ii) liabilities (including
environmental liabilities) of the holders of such Indebtedness and their
affiliates to third parties, (iii) breaches of customary representations and
warranties given to the holders of such Indebtedness, (iv) commission of waste
with respect to any part of the collateral securing such Indebtedness, (v)
recovery of rents, profits or other income attributable to the collateral
securing such Indebtedness collected following a default, (vi) fraud, gross
negligence or willful misconduct, and (vii) breach of any covenants regarding
compliance with ERISA.

     "Note" means the Promissory Note executed by Borrower in favor of Agent
      ----
pursuant to this Agreement, as at any time amended, supplemented or replaced.

     "Obligations" means all advances, debts, liabilities, obligations and
      -----------
covenants arising under any Loan Document owing by Borrower to any Bank, Agent
or any Indemnified Person, whether absolute or contingent, due or to become due,
now existing or hereafter arising.

     "Other Unencumbered Property Owner" means any Borrower Entity or Joint
      ---------------------------------
Venture Entity, other than a Guarantor, that owns Unencumbered Pool Property any
portion of the value of which is included in calculating Total Real Property
Market Value of Unencumbered Real Property.

     "Person" means any natural person, employee, corporation, limited
      ------
partnership, general partnership, joint stock company, limited liability
company, joint venture, association, company, trust, bank, trust company, land
trust, business trust or other organization, whether or not a legal entity, or
any other non-governmental entity, or any Governmental Authority.

                                      -9-
<PAGE>

     "Pro Rata Share" means, as to any Bank at any time, the percentage
      --------------
equivalent (expressed as a decimal rounded to the twelfth decimal place) at such
time of such Bank's share of the Maximum Loan Amount.

     "Prudential Indebtedness" means the unsecured Indebtedness of Borrower to
      -----------------------
The Prudential Insurance Company of America in the original principal amount of
$75,000,000.

     "Rating Agency" means each of Standard & Poor's Corporation, Moody's
      -------------
Investor's Service, Inc., Duff and Phelps and Fitch Investors or such other
nationally recognized rating service or services as may be mutually agreed upon
by Borrower and Agent, with the consent of the Majority Banks.

     "Real Property" means all improved, income-producing real property (i)
      -------------
owned in fee entirely by Borrower or by a Controlled Borrower Entity or
Controlled Joint Venture Entity, and (ii) as to which at least eighty-five
percent (85%) of (a) the apartment units (in the case of real property improved
with an apartment project) or (b) the net rentable square footage of the
improvements thereon, in the case of all other real property, is occupied by
tenants, under written leases, who have commenced paying rent.  Where a real
estate development project consisting of several buildings is under
construction, each building, as it is completed and satisfies the requirements
of the preceding clauses (i) and (ii), shall be treated as a separate "Real
Property" for purposes of this definition until such time as all of the
buildings included in that project have been completed.  Upon completion, the
project shall be treated as a whole for purposes of determining whether it
qualifies as "Real Property."

     "Reference Rate" has the meaning given to such term in the Note.
      --------------

     "Reference Rate Loan" means a Loan bearing interest, at all times during an
      -------------------
interest period applicable to such Loan, at a fixed rate of interest determined
by reference to the Reference Rate.

     "Secured Indebtedness" means, without duplication, all Indebtedness, of
      --------------------
Borrower or any Consolidated Borrower Entity or Consolidated Joint Venture
Entity, that is secured by a Lien on any real property asset.

     "Subsidiary" of a Person means any other Person of which 50% or more of the
      ----------
voting stock, membership interests or other equity interests is owned or
controlled directly or indirectly by the Person, or one or more of the
Subsidiaries of the Person, or a combination thereof.

     "Tangible Net Worth" means, at any time, (i) shareholders' equity, as shown
      ------------------
on Borrower's consolidated financial statements prepared in accordance with
GAAP, exclusive of minority interests, minus (ii) all Intangible Assets.

                                      -10-
<PAGE>

     "Total Assets" means, at any time, the sum of (i) the aggregate value,
      ------------
using the Current Value Method, of all Real Property owned directly by Borrower
or by any Consolidated Borrower Entity or Consolidated Joint Venture Entity,
plus (ii) to the extent not in excess of 15% of Total Assets, the book value
(net of any applicable reserves) of all other tangible assets of Borrower as
shown on its most recent quarterly financial statements prepared on a
consolidated basis in accordance with GAAP.

     "Total Liabilities" means (i) all Indebtedness of Borrower, whether or not
      -----------------
such Indebtedness should be included as a liability on the balance sheet of
Borrower in accordance with GAAP, plus (ii) all other liabilities of every
nature and kind of Borrower that should be included as liabilities on the
balance sheet of Borrower in accordance with GAAP (other than minority
interests), in each case, determined on a consolidated basis.

     "Total Real Property Market Value of Unencumbered Real Property" means, at
      --------------------------------------------------------------
any time, the sum of (i) the aggregate value (as determined using the Current
Value Method) of all Unencumbered Real Properties owned directly by Borrower or
by any Controlled Borrower Entity that is a Guarantor, plus (ii) to the extent
that the aggregate contribution to Total Real Property Market Value of
Unencumbered Real Property of this clause (ii) is not in excess of 10% of Total
Real Property Market Value of Unencumbered Real Property, for each Other
Unencumbered Property Owner, Borrower's Share of the aggregate value of all
Unencumbered Real Properties owned directly by such Person (as determined using
the Current Value Method).

     "Unencumbered Real Property" means all Real Property as to which (i)
      --------------------------
neither such Real Property, nor any interest in the Person owning such Real
Property, is subject to any Lien (other than Liens in respect of nondelinquent
real estate taxes or assessments) or to any agreement (other than this Agreement
or any other Loan Document, and including any provision of such Person's charter
documents) that (A) prohibits the creation of any Lien thereon as security for
Indebtedness of the Person owning such Real Property; or (B) limits the
Indebtedness owed to the Banks in respect of which such Real Property may be
encumbered to less than the full market value (determined using the Current
Value Method) of such Real Property; (ii) the Person owning such Real Property,
if a Borrower Entity or a Joint Venture Entity, has no Indebtedness other than
Indebtedness permitted to exist under Section 6.4(i) (whether or not such Person
is a Guarantor); and (iii) no event described in Section 8.3 or Section 8.4 has
occurred and is continuing with respect to the Person that owns such Real
Property (and including, for purposes of this definition only, any such event
with respect to a Guarantor or Other Unencumbered Property Owner, whether or not
it is a Material Borrower Entity, other than a merger or liquidation of a
Guarantor or Other Unencumbered Property Owner into a Material Borrower Entity
or Borrower).

     "Unsecured Indebtedness" means Indebtedness of Borrower not secured by a
      ----------------------
Lien, determined on a consolidated basis.

                                      -11-
<PAGE>

     "Unsecured Interest Expense" means, for any period, the total interest
      --------------------------
expense of Borrower with respect to Unsecured Indebtedness (whether paid,
accrued or capitalized (including the interest component of capital leases and
including interest-related costs such as amounts payable under interest rate
swaps, caps or other derivatives and loan fees, to the extent that such costs
are permitted to be amortized under GAAP, but excluding amounts, such as
prepayment premiums and breakage fees, that are not permitted to be amortized
under GAAP)) for such period, determined on a consolidated basis.

1.  CREDIT FACILITIES AMOUNTS AND TERMS

     1.1  Line of Credit Amount.
          ----------------------

          (a)  Line of Credit. During the Availability Period, the Banks will
               --------------
provide a line of credit (the "Line of Credit"; also referred to as the "Loan")
to Borrower in accordance with the other provisions hereof. The amount of the
Line of Credit is One Hundred Million Dollars ($100,000,000) (the "Maximum Loan
Amount").

          (b)  Revolving Credit. This is a revolving line of credit. During the
               ----------------
Availability Period, Borrower may from time to time repay principal amounts
(subject to the provisions of Exhibit B to the Note) and reborrow such
principal, subject to compliance with the terms and conditions of this Agreement
and the other Loan Documents.

          (c)  Minimum Advance. Each Advance under the Line of Credit must be in
               ---------------
the following minimum amounts (or for the amount of the remaining available Line
of Credit if less):

               (i)   LIBOR Loans. Each LIBOR Loan shall equal $5,000,000 or an
     integral multiple of $1,000,000 in excess thereof.

               (ii)  Reference Rate Loans. Each Reference Rate Loan shall equal
     $2,000,000 or an integral multiple of $500,000 in excess thereof.

          (d)  Limit. Borrower agrees not to permit the sum of the aggregate
               -----
principal amount of all Advances under the Loan Documents outstanding at any
time, to exceed the Maximum Loan Amount.

     1.2  The Credit Facilities.
          ----------------------

          (a)  Line of Credit. Subject to the terms and conditions hereof, each
               --------------
Bank severally agrees to fund its Pro Rata Share of each Committed Loan under
the Line of Credit from time to time during the Availability Period; provided,
however, that at no time shall the aggregate principal amount of all Committed
Loans then outstanding

                                      -12-
<PAGE>

exceed the Committed Loan Availability. The proceeds of each such Advance shall
be delivered to Borrower in accordance with the provisions of the Loan
Documents.

          (b)  Certain General Provisions.
               --------------------------

               (i)    Each Bank acquiring an interest in the Committed Loans
     shall become vested with its Pro Rata Share of Committed Loans upon
     execution and delivery of the required documents and upon payment of its
     Pro Rata Share of the principal balance of the outstanding Committed Loans
     and any other fees, costs or expenses due hereunder or pursuant to another
     agreement. Upon such payment, the respective interests of each Bank in the
     Loan Documents and the other rights and claims with respect to the Line of
     Credit shall be of equal priority with one another, except as otherwise
     expressly provided.

               (ii)   A complete set of Loan Documents shall be held by Agent.

               (iii)  No Bank other than a Bank that is also Agent shall have
     any interest in any (A) property taken as security for any other loan or
     financial accommodation made or furnished to Borrower by Agent (in which
     such Bank has not acquired an interest); (B) property now or hereafter in
     Agent's possession or under Agent's control other than by reason of the
     Loan Documents; or (C) deposits which may be or might become security for
     Borrower's Obligations by reason of the general description contained in
     any instrument not a Loan Document held by Agent or by reason of any right
     of setoff, counterclaim, banker's lien or otherwise. If, however, such
     property shall actually be applied to the payment of amounts owing by
     Borrower in connection with the Advances, then each Bank shall be entitled
     to a pro rata share, if any, of such application to amounts due in
     connection with the Advances, based on the ratio of the outstanding
     principal amount of all Advances made by such Bank to the outstanding
     principal amount of all Advances.

               (iv)   All the parties agree that, except as may be otherwise
     expressly provided, all of the interest rates for the Advances are those of
     and are calculated in accordance with the requirements and any applicable
     assessments of Agent, regardless of which Bank is making an Advance or
     receiving a payment thereon.

               (v)    If, at any time or for any reason whatsoever, (A) the sum
     of the aggregate principal amount of all outstanding Committed Loans shall
     exceed the Committed Loan Availability, or (B) the aggregate amount of all
     outstanding Advances shall exceed the Maximum Loan Amount, then Borrower
     shall immediately pay to the Banks (for their own account, as applicable,
     to be applied to repayment of the affected Advances in such order as Agent
     may determine, in its sole discretion), the amount of such excess (or, if
     less, the outstanding principal of all affected Advances).

                                      -13-
<PAGE>

          1.3  Procedure for Borrowing.
               ------------------------

               (a)  Committed Loans.
                    ---------------

                    (i)  Each Borrowing under the Line of Credit shall be made
     upon Borrower's irrevocable written notice delivered to Agent in accordance
     with Section 3.1.

                    (ii) Agent will promptly notify each Bank of (A) any
     election of a LIBOR Alternative Rate by Borrower pursuant to the provisions
     of Exhibit A to the Note and of the amount of such Bank's Pro Rata Share of
     the principal of the Loan with respect to which such election has been
     made, and (B) any Notice of Borrowing and of the amount of such Bank's Pro
     Rata Share of that Borrowing. With respect to a Notice of Borrowing, the
     Banks, acting through Agent, shall disburse the requested Advance as
     provided in the Loan Agreement.

               (b)  Certain General Provisions.
                    --------------------------

                    (i)   Each Bank shall make the aggregate amount of its Pro
     Rata Share of each Committed Loan,

                    (ii)  Unless Agent receives notice from any Bank at least
     one Banking Day prior to the date of a Borrowing that such Bank will not
     make available to Agent when required its Pro Rata Share of the Committed
     Loan to be made thereon, Agent may assume that such Bank has made such
     amount available to Agent in immediately available funds on the date of
     such Borrowing.

                    (iii) The failure of any Bank to make available to Agent any
     amount it is required to make so available in respect of any Borrowing
     shall not relieve any other Bank of any obligation hereunder to make an
     Advance on the date of such Borrowing.

     1.4  Interest Rates.
          ---------------

          (a)  The Note sets forth certain provisions regarding the interest
     rates and certain other terms and conditions applicable to the credit
     facilities provided pursuant to the Loan Documents. Borrower may elect
     interest rates applicable to the Committed Loans in accordance with the
     requirements, terms and conditions set forth in the Note upon irrevocable
     written notice to Agent to be received by Agent on the appropriate day not
     later than 9:30 a.m. (San Francisco time).

          (b)  Agent will promptly notify each Bank of receipt of an election of
     the Contract Rate. If no timely notice is provided by Borrower, Agent will
     promptly notify each Bank of any automatic conversion to the Reference-
     based Rate. All rate elections and conversions with respect to Committed
     Loans shall be made ratably according to the

                                      -14-
<PAGE>

respective outstanding principal amounts of the Committed Loan held by each Bank
with respect to which the notice was given.

     1.5  Prepayments.
          ------------

          (a)  In the event Borrower elects to prepay the Committed Loans in
whole or in part in accordance with the Loan Documents, Agent will promptly
notify each Bank of such notice and of each Bank's Pro Rata Share of such
prepayment.

          (b)  Each of the waivers and acknowledgments of Borrower set forth in
Paragraphs 4 and 5 of Exhibit B to the Note shall apply to Borrower's covenants
set forth in this Section 1.5 as if set forth herein.

     1.6  Usury.
          ------

     If a court ultimately determines that the Loan (or any Advance) violates
applicable usury law, then (a) Borrower shall not be required to pay to or for
the account of any Bank interest on the Loan (or such Advance) at a rate in
excess of the maximum rate that may be lawfully charged under applicable law;
and (b) in the event that any Bank shall collect interest or other monies which
are deemed to constitute interest which would increase the effective interest
rate on the Loan (or any Advance) to a rate in excess of that permitted by
applicable law, such excess interest shall, at the option of said Bank, be
returned to Borrower or credited against the principal balance of the Loan (or
such Advance) then outstanding; (c) provided, however, that if a usury law
applies to one or more but not all Banks, then the Banks not affected by the
usury law shall be entitled to the full amount of interest from Borrower under
the Loan Documents even though other Banks may receive or retain less due to the
usury law.

     1.7  Increased Costs and Reduction of Return.
          ----------------------------------------

     If any Bank shall have determined that a change in or compliance with any
Capital Adequacy Regulation affects the amount of capital required to be
maintained by the Bank, or by any Person controlling the Bank, and such Bank
determines that the amount of such required capital is increased as a
consequence of the Line of Credit or other obligations under the Loan Documents
taking into consideration such Bank's or controlling Person's policies with
respect to capital adequacy and desired return on capital, then, upon demand of
such Bank to Borrower through Agent, Borrower shall pay to the Bank an
additional amount sufficient to compensate the Bank for such increase.

                                      -15-
<PAGE>

2.   FEES, EXPENSES

     2.1  Commitment Fee. Borrower shall pay to BofA and Commerzbank AG, for
          --------------
their own account, a commitment fee as set forth in a separate letter
understanding between Borrower, BofA and Commerzbank AG.

     2.2  Costs and Expenses.
          ------------------

          Borrower shall:

          (a)  pay or reimburse Agent within five Banking Days after demand for
all costs and expenses (including legal fees) incurred by it in connection with
the preparation, administration and execution of any Loan Document and any
amendment, supplement, waiver or modification and any other documents prepared
in connection herewith or therewith, (whether or not the particular Loan,
transaction or document is consummated), including reasonable legal fees
incurred by BofA (including as Agent) with respect thereto; and

          (b)  pay or reimburse Agent and each Bank within five Banking Days
after demand for all costs and expenses (including legal fees) incurred by them
in connection with the enforcement or preservation of any rights or remedies
under any Loan Document with respect to an Event of Default (including any
"workout" or restructuring of all or any portion of the Obligations and any
Insolvency Proceeding, judicial proceeding or arbitration).

     2.3  Indemnification by Borrower.
          ----------------------------

          (a)  Borrower shall indemnify, defend and hold Agent-Related Persons
and each Bank, and each of their respective officers, directors, employees and
agents (each, an "Indemnified Person") harmless from and against:

               (i)  any and all liabilities, obligations, losses, damages,
     actions, judgments, costs and expenses (including legal fees) which may be
     incurred by or asserted against any such Person arising out of or relating
     to Advances under the Loan Documents, the Loan Documents or any document or
     transaction or action taken or not by any such Person in connection with
     any of the foregoing, including but not limited to the execution, delivery,
     enforcement, performance and administration of this Agreement and the other
     Loan Documents, or (B) the transactions contemplated hereby, including any
     investigation, arbitration, litigation, Insolvency Proceeding or other
     proceeding thereto related to this Agreement or the other Loan Documents,
     Advances under the Loan Documents or the use of the proceeds thereof
     (including, without limitation, any investigation, litigation or proceeding
     related to the acquisition by any Borrower Entity or Joint

                                      -16-
<PAGE>

     Venture Entity of all or any portion of its assets), whether or not any
     Indemnified Person is a party; and

               (ii) any and all writs, subpoenas, claims, demands, actions, or
     causes of action that are served on or asserted against any Indemnified
     Person (if directly or indirectly related to a writ, subpoena, claim,
     demand, action, or cause of action against Borrower or any Affiliate of
     Borrower); and any and all liabilities, losses, costs, or expenses
     (including attorneys' fees) that any Indemnified Person suffers or incurs
     as a result of any of said matters;

(all the foregoing, collectively, the "Indemnified Liabilities"); provided, that
Borrower shall have no obligation hereunder to any Indemnified Person with
respect to Indemnified Liabilities resulting solely from the gross negligence or
willful misconduct of such Indemnified Person.

          (b)  Borrower shall further indemnify Agent and each Bank from and
hold it harmless against any transfer or documentary taxes, assessments or
charges imposed by any governmental authority by reason of the execution,
delivery and performance of the Loan Documents.

          (c)  Borrower's obligations under this Section 2.3 shall survive
payment of all other Obligations, and shall inure to the benefit of Agent, Banks
and their successors and assigns.

3.   DISBURSEMENTS AND PAYMENTS

3.1  Requests for Credit.
     --------------------

          (a)  Each request for an extension of credit shall be made in writing
in a manner acceptable to Agent.

          (b)  Borrowing Notice. Except as otherwise provided in the Loan
               ----------------
Documents, each draw request shall be made upon the irrevocable written notice
of Borrower (including notice via facsimile confirmed by a mailed copy) pursuant
to a Borrowing Notice in the form attached hereto as Exhibit A. Each Borrowing
Notice shall be submitted to and received by the Bank prior to 9:00 a.m.
(California time) at least two (2) Banking Days prior to the specified borrowing
date with respect to a Reference Rate Loan and three (3) Banking Days prior to
the specified borrowing date with respect to a LIBOR Loan. The truth and
accuracy of each statement made in the Borrowing Notice shall be a condition
precedent to the advance requested thereunder.

     3.2  Disbursement and Payment Record; Loan Account.
          ----------------------------------------------

          Each disbursement by Agent, and each payment by Borrower, shall be
evidenced by records kept by Agent.  The Advances made by each Bank shall be

                                      -17-
<PAGE>

evidenced by one or more loan accounts or records maintained by such Bank or
Agent, as the case may be, in the ordinary course of business.  The loan
accounts or records maintained by Agent and each Bank shall be conclusive absent
manifest error of the amount of the Advances made by the Banks to Borrower and
the interest and payments thereon.  Any failure so to record or any error in
doing so shall not, however, limit or otherwise affect the obligation of
Borrower hereunder to pay any amount owing with respect to Advances made under
the Loan Documents.

     3.3  Authorization.
          --------------

          (a)  Agent may honor facsimile instructions for advances or repayments
(or for the designation of any optional interest rates that may be permitted by
the Note) given by any one of the individuals authorized to sign loan documents
on behalf of Borrower, or any other individual designated by any one of such
authorized signers.

          (b)  Advances will be deposited in Borrower's account maintained with
Agent, or such other of Borrower's accounts with Agent as designated in writing
by Borrower.

          (c)  Borrower indemnifies and releases Agent and each Bank (including,
in each case, its officers, employees, and agents) from all liability, loss, and
costs in connection with any act resulting from written instructions any such
Person reasonably believes are made by any individual authorized by Borrower to
give such instructions. This indemnity and release shall survive this
Agreement's termination.

     3.4  Banking Days.
          -------------

     A Banking Day is defined in the Note.  All payments and disbursements which
would be due on a day which is not a Banking Day will be due on the next Banking
Day.  All payments received on a day which is not a Banking Day will be applied
to amounts due under the Loan Documents on the next Banking Day.

     3.5  Payments.
          ---------

          (a)  All payments to be made by Borrower shall be made without set-
off, recoupment or counterclaim. Except as otherwise provided, all payments by
Borrower shall be made to Agent for the account of the Banks, as applicable, at
Agent's Payment Office, and shall be made in U.S. dollars and in immediately
available funds, in accordance with the Loan Documents. Agent will promptly
distribute to each Bank, in like funds as received, its Pro Rata Share (or other
applicable share as may be agreed by a Bank) of each payment in respect of the
Line of Credit and provided that if any payment is received or otherwise
realized by Agent at a time when the Availability Period has ended and all
outstanding Advances have become, or have been declared, due and payable, then
Agent shall distribute to each Bank its pro rata share thereof, based on the

                                      -18-
<PAGE>

proportion of the aggregate principal amount of such Bank's outstanding Advances
to the aggregate principal amount of all outstanding Advances. Any payment
received by Agent later than 11:00 a.m. (San Francisco time) shall be deemed to
have been received on the following Banking Day and any applicable interest or
fee shall continue to accrue.

          (b)  To the extent that Borrower makes a payment to Agent or the Banks
or (notwithstanding any provision of the Co-Lender Agreement to the contrary)
the Banks exercise the right of set-off, and such payment or the proceeds of
such set-off or any part thereof are subsequently invalidated, declared to be
fraudulent or preferential, set aside or required (including by any settlement)
to be repaid to a trustee, receiver, Borrower or any other party, in connection
with any Insolvency Proceeding or otherwise, then (i) to the extent of such
recovery the obligation or part thereof originally intended to be satisfied
shall be revived and continued in full force and effect as if such payment had
not been made or such set-off had not occurred; and (ii) each Bank severally
agrees to pay to Agent upon demand any amount received under the Loan Documents,
its Pro Rata Share of any amount so recovered from or repaid by Agent.

          (c)  Agent shall have the exclusive right to collect on the Loan from
Borrower or any guarantors, third parties, or otherwise including principal,
interest, fees or any prepayment premiums, whether such amounts are received
directly from Borrower, any guarantors, or other persons, or are collected by
offset by Agent against the money or other property of Borrower or any
guarantors deposited at or held by Agent, or other enforcement of the Loan
Documents. No Bank shall independently initiate any judicial action or
equivalent action or other proceeding against Borrower with respect to the Loan.

          (d)  (i) Notwithstanding any other provision of any Loan Document or
     the Co-Lender Agreement to the contrary, Agent, and Banks agree with
     Borrower that any funds, claims, or distributions actually received by
     Agent for the account of any Bank as a result of the enforcement of, or
     pursuant to, any Guaranty, net of Agent's and Banks' expenses of collection
     thereof (such net amount, "Guaranty Proceeds"), shall be made available for
     distribution equally and ratably (in proportion to the aggregate amount of
     principal, interest and other amounts then owed in respect of the
     Obligations or of an issuance of Public Debt (as defined below), as the
     case may be) among the Agent, the Banks and the trustee or trustees (or to
     the holders) of any Unsecured Indebtedness, not subordinated to the
     Obligations, issued by Borrower, before or after the Effective Date, in
     offerings registered under the Securities Act of 1933, as amended, or in
     transactions exempt from registration pursuant to Rule 144A thereof (any
     such qualifying Unsecured Indebtedness, "Public Debt"), and Agent is hereby
     authorized, by Borrower, by each Bank (on its own behalf) and by each
     Guarantor (by its execution and delivery of the Guaranty to which it is
     party) to make such Guaranty Proceeds so available. No Bank shall have any
     interest in any amount

                                      -19-
<PAGE>

     paid over by Agent to the trustee or trustees in respect of any Public Debt
     (or to the holders thereof) pursuant to the foregoing authorization. This
     Section 3.5(d) shall apply solely to Guaranty Proceeds, and not to any
     payments, funds, claims or distributions received by Agent or any Bank
     directly or indirectly from Borrower or any other Person other than from a
     Guarantor pursuant to a Guaranty. Borrower is aware of the terms of the
     Guarantees, and specifically understands and agrees with Agent and the
     Banks that, to the extent Guaranty Proceeds are distributed to holders of
     Public Debt or their respective trustees, such Guarantor has agreed that
     the Obligations will not be deemed reduced by any such distributions, and
     each Guarantor shall continue to make payments pursuant to its Guaranty
     until such time as the Obligations have been paid in full (and the
     Commitments have been terminated), after taking into account any such
     distributions of Guaranty Proceeds in respect of Indebtedness other than
     the Obligations.

               (ii)   Nothing contained herein shall be deemed (A) to limit,
     modify, or alter the rights of Agent and the Banks under any Guaranty, (B)
     to subordinate the Obligations to any Public Debt, or (C) to give any
     holder of Public Debt (or any trustee for such holder) any rights of
     subrogation.

               (iii)  This Agreement, and each Guaranty, are for the sole
     benefit of Agent and the Banks and their respective successors and assigns.
     Nothing contained herein or in any Guaranty shall be deemed for the benefit
     of any holder of Public Debt, or any trustee for such holder; nor shall
     anything contained herein or therein be construed to impose on Agent, any
     Bank any fiduciary duties, obligations or responsibilities to the holders
     of any Public Debt or their trustees (including, but not limited to, any
     duty to pursue any Guarantor for payment under its Guaranty).

          (e)  Financing Repayments. Upon the closing of (i) any financing of
               --------------------
any Real Property or (ii) the debt or equity financing of any Joint Venture
Entity, Borrower shall use all net proceeds Borrower actually receives directly
or indirectly from such financing to repay Committed Loans. Concurrently with
the repayment of Committed Loans under this Section 3.5(e), the Maximum Loan
Amount will be reduced permanently by the amount of such repayment. For purposes
of this Section 3.5(e), the term "net proceeds" means all cash proceeds (net of
any principal amount being refinanced or indebtedness being repaid) actually
received by Borrower from any financing described above, minus payments of (i)
attorneys' fees and disbursements, (ii) loan broker's fees and commissions,
(iii) loan commitment fees, (iv) lender due diligence costs and expenses, (v)
lender title insurance policy premiums, (vi) escrow fees, (vii) accountant's
fees and expenses, (viii) underwriting fees and expenses, (viii) mandatory
distributions to the shareholders of Borrower required to be made to maintain
Borrower's status as a REIT, (ix) taxes required to be paid by Borrower in
connection with a

                                      -20-
<PAGE>

financing described in this Section 3.5(e) and (x) other customary financing
costs or expenses incurred by Borrower and approved by Agent in its reasonable
discretion. Notwithstanding anything to the contrary in this Agreement, this
Section 3.5(e) shall be deemed to be null and void and of no force or effect to
the extent its application could jeopardize Borrower's status as a REIT.

4.  CONDITIONS

     4.1  Conditions Precedent to Initial Funding Date on or after the Effective
          ----------------------------------------------------------------------
Date.
-----

          The obligation of each Bank under the Loan Documents to make any
Advances on or after the Effective Date is subject to the further conditions
that Agent has received all of the following in form and substance satisfactory
to Agent:

          (a)  Loan Documents. Fully executed originals of this Agreement
               --------------
(including the Guaranty attached hereto, executed on behalf of each Guarantor)
and the Co-Lender Agreement and any other documents any Bank may reasonably
require or request in accordance with the Loan Documents.

          (b)  Authorizations. Evidence that the execution, delivery and
               --------------
performance by Borrower and each Material Borrower Entity or other Guarantor (if
any) of each of the Loan Documents to which such Person is or is to become a
party have been duly authorized, including, without limitation, (i) Corporate
Resolution to borrow, certified by the Corporate Secretary of Borrower, together
with a Certificate of Incumbency for the authorized signing officers, containing
their specimen signatures and certified by the Corporate Secretary of Borrower,
and (ii) resolutions, or other required action, by each Material Borrower Entity
or other Guarantor with respect to the execution and delivery of its Guaranty
(or reconfirmation of its existing Guaranty), together with a Certificate of
Incumbency for the authorized signing officers, containing their specimen
signatures and certified by such Material Borrower Entity's or other Guarantor's
Secretary (or the equivalent).

          (c)  Governing Documents; Good Standing Certificates. For Borrower,
               -----------------------------------------------
BRE Property Investors LLC and each other Material Borrower Entity or Guarantor
or Other Unencumbered Property Owner (if any):

               (i)  a copy of such Person's articles of incorporation and
     bylaws, articles of organization, Form LLC-1 and operating agreement, Form
     LP-1 and agreement of limited partnership or other charter documents, as
     the case may be, and

               (ii) a certificate of good standing for Borrower and each
     Material Borrower Entity, other Guarantor or Other Unencumbered Property
     Owner from the state where formed and, at the Bank's request, from any
     other state in which

                                      -21-
<PAGE>

     Borrower or such Material Borrower Entity, other Guarantor or Other
     Unencumbered Property Owner is required to qualify to conduct its business.

          (d)  Reimbursement. Reimbursement of all costs and expenses incurred
               -------------
by Agent in connection with this Agreement, including legal fees and expenses of
Agent's counsel, and the costs for services of Agent's in-house staff, such as
legal services.

          (e)  Payment of Fees. Payment of all accrued and unpaid fees and
               ---------------
expenses due Agent as provided for by the Loan Documents, including those
referred to in Section 2.1 that are required by this Agreement or any letter
understanding between Borrower and Agent to be paid on or before the Effective
Date.

          (f)  Legal Opinion. An opinion of legal counsel for Borrower and each
               -------------
Material Borrower Entity and other Guarantor addressing such matters as Agent
may reasonably request, including, without limitation, a customary "no
conflicts" legal opinion to be delivered by Latham & Watkins on or after the
Effective Date but prior to the initial Advance.

          (g)  Other Items. Any other documents and other items Agent may
               -----------
reasonably require as conditions precedent to the initial extensions of credit
under this Agreement.

     4.2  Conditions to All Borrowings.
          -----------------------------

          The obligation of each Bank to make any Advance (including its first
disbursement on or after the Effective Date) under the Loan Documents is subject
to the satisfaction on the Funding Date of the relevant Borrowing of the
conditions set forth below:

          (a)  Borrower shall have submitted a timely Borrowing Notice;

          (b)  No Event of Default or event that, with the giving of notice or
the passage of time, or both, would constitute an Event of Default shall have
occurred and be continuing at the time of such Advance or issuance, or would
exist as a result thereof;

          (c)  Each of the representations and warranties of Borrower and each
Guarantor contained in this Agreement or the other Loan Documents shall be true
and correct in all material respects on the date of such Advance or issuance
(both before and after giving effect thereto), as if made thereon; and

          (d)  Compliance with all covenants, terms and conditions contained in
the Primary Loan Documents.

                                      -22-
<PAGE>

5.   REPRESENTATIONS AND WARRANTIES

     When Borrower signs this Agreement, and until the Commitments have
terminated and all Obligations have been repaid in full, Borrower makes the
following representations and warranties.  Each request for an extension of
credit constitutes a restatement of each such representation and warranty.

     5.1  Organization of Borrower; Good Standing.
          ----------------------------------------

          (a)  Borrower, and each Guarantor, are duly formed and existing under
the laws of the state where organized. In each state in which Borrower or any
Guarantor does business, it is properly licensed, in good standing, and, where
required, in compliance with any fictitious name statute.

          (b)  Schedule 1 (if applicable, as updated pursuant to Section 6.18)
sets forth the members, general partners and limited partners, or other holders
of ownership interests in BRE Property Investors LLC and each other Material
Borrower Entity or Guarantor, as well as of each Other Unencumbered Property
Owner, and their respective ownership percentages, and there are no other
membership, partnership or other ownership interests outstanding. No membership,
partnership or other ownership interest (or any securities, instruments,
warrants, option or purchase rights, conversion or exchange rights, calls,
commitments or claims of any character convertible into or exercisable for such
interests) in any Material Borrower Entity, other Guarantor or Other
Unencumbered Property Owner is subject to issuance under any security,
instrument, warrant, option or purchase rights, conversion or exchange rights,
call, commitment or claim of any right, title or interest therein or thereto.
All of the membership, partnership or other ownership interests in Borrower and
each Material Borrower Entity, other Guarantor or Other Unencumbered Property
Owner have been issued in compliance with all applicable requirements of law.

     5.2  Authorization; Enforceable Agreement.
          -------------------------------------

          This Agreement and the other Loan Documents are within the powers of
Borrower or the Material Borrower Entity or other Guarantor party thereto, have
been duly authorized and do not conflict with any of its organizational
documents.  The Loan Documents do not conflict with any law, agreement or
obligation by which Borrower or any Material Borrower Entity or other Guarantor
is bound.  This Agreement is a legal, valid and binding agreement of Borrower,
enforceable against Borrower in accordance with its terms, and any instrument or
document required hereunder, when executed and delivered by Borrower or any
Material Borrower Entity or other Guarantor, will be similarly a legal, valid,
binding and enforceable agreement of such Person.

                                      -23-
<PAGE>

     5.3  Financial Information.
          ----------------------

          (a)  All financial statements and data submitted in writing by
Borrower to Agent or any Bank pursuant hereto are true and correct, and all such
financial statements present fairly the financial condition of Borrower as at
the date thereof and the results of the operations of Borrower for the period(s)
covered thereby, and have been prepared in accordance with generally accepted
accounting principles on a basis consistently applied. Borrower has no knowledge
of any liabilities, contingent or otherwise, not reflected in said financial
statements, and neither Borrower nor any Borrower Entity or Joint Venture Entity
has entered into any material commitments or material contracts which are not
reflected in said balance sheet which may have a Material Adverse Effect on
Borrower or any Material Borrower Entity. Since said date there have been no
changes in the assets or liabilities or financial condition of Borrower or any
Material Borrower Entity other than changes in the ordinary course of business,
and no such changes have been materially adverse changes.

          (b)  All financial and other information that has been or will be
supplied to Agent or any Bank, including the financial statements of Borrower or
any other Person:

               (i)   is sufficiently complete to give Agent and the Banks
     accurate knowledge of the subject's financial condition;

               (ii)  is in form and content as required by Agent and the Banks,
     previously communicated to Borrower;

               (iii) is in compliance with any government regulations that
     apply; and

               (iv)  does not fail to state any material facts necessary to make
     the information contained therein not misleading.

All such information (other than Funds From Operations) was and will be prepared
in accordance with GAAP, unless otherwise noted.

     5.4  Lawsuits.
          ---------

          There is no lawsuit, arbitration, claim or other dispute pending or
threatened against Borrower or any Borrower Entity or Joint Venture Entity
which, if lost, could reasonably be expected to impair Borrower's or any
Material Borrower Entity's financial condition or ability to repay advances
made, and other amounts due, under the Loan Documents, except as has been
previously disclosed in writing to Agent and the Banks.

                                      -24-
<PAGE>

     5.5  Title to Assets.
          ----------------

          Borrower, and each Borrower Entity and Joint Venture Entity, have good
and clear title to its assets, and the same are not subject to any Liens other
than those disclosed to Agent and the Banks in writing.

     5.6  Permits, Franchises.
          --------------------

          Borrower, and each Material Borrower Entity, possess all permits,
franchises, contracts and licenses required and all trademark rights, trade name
rights, and fictitious name rights necessary to enable it to conduct the
business in which it is now engaged.

     5.7  Income Tax Returns.
          -------------------

          Borrower, and each Borrower Entity and Joint Venture Entity, has filed
all tax returns and reports required to be filed and has paid all applicable
federal, state and local franchise, income and property taxes which are due and
payable.  Borrower has no knowledge of any pending assessments or adjustments of
its income taxes or property taxes (or those of Borrower Entity or Joint Venture
Entity) for any year, except as have been disclosed in writing to Agent and the
Banks.  Borrower is not a "foreign person" within the meaning of Section
1445(f)(3) of the Internal Revenue Code of 1986, as amended (the "Code").

     5.8  ERISA Plans.
          ------------

          (a)  As used herein, (i) "ERISA" means the Employee Retirement Income
Act of 1974, as amended; (ii) "PBGC" means the Pension Benefit Guaranty
Corporation established pursuant to ERISA; and (iii) "Plan" means any employee
pension benefit plan maintained or contributed to by Borrower or any Borrower
Entity and insured by the PBGC.

          (b)  Borrower, and each Borrower Entity, has fulfilled its
obligations, if any, under the minimum funding standards of ERISA and the Code
with respect to each Plan and is in compliance in all material respects with the
presently applicable provisions of ERISA and the Code, and has not incurred any
liability with respect to any Plan under Title IV of ERISA.

          (c)  No reportable event has occurred under Section 4043(b) of ERISA
for which the PBGC requires 30 day notice. No action by Borrower or any Borrower
Entity to terminate or withdraw from any Plan has been taken and no notice of
intent to terminate a Plan has been filed under Section 4041 of ERISA. No
proceeding has been commenced with respect to a Plan under Section 4042 of
ERISA, and no event has occurred or condition exists which might constitute
grounds for the commencement of such a proceeding.

                                      -25-
<PAGE>

     5.9  Other Obligations.
          ------------------

          Neither Borrower nor any Material Borrower Entity or Joint Venture
Entity is in default on any Indebtedness or Contractual Obligation of Borrower,
such Material Borrower Entity or such Joint Venture Entity, as the case may be,
except as has been previously disclosed in writing to Agent and the Banks.

     5.10 Event of Default.
          -----------------

          There is no event which is, or with notice or lapse of time or both
would be, an Event of Default hereunder.

     5.11 Status as a REIT.
          -----------------

          Borrower (i) is a real estate investment trust as defined in Section
856 of the Code (or any successor provision thereto), (ii) has not revoked its
election to be a real estate investment trust, (iii) has not engaged in any
"prohibited transactions" as defined in Section 856(b)(6)(iii) of the Code (or
any successor provision thereto), and (iv) for its current "tax year" (as
defined in the Code) is and for all prior tax years subsequent to its election
to be a real estate investment trust has been entitled to a dividends paid
deduction which meets the requirements of Section 857 of the Code.

6.   COVENANTS

     Borrower agrees, so long as credit is available under this Agreement or any
other Loan Document and all Obligations have been repaid in full:

     6.1  Use of Proceeds.
          ----------------

          Borrower shall use, and shall permit the proceeds of the advances
under the Loan Documents to be used, only for general working capital purposes
of Borrower, including (but subject to Section 6.4(g)), development
expenditures.

     6.2  Financial Information.
          ----------------------

          Borrower shall provide the following financial information and
statements and such additional information as requested by Agent from time to
time:

          (a)  As soon as available but not later than ninety (90) days after
Borrower's fiscal year end, a copy of Borrower's Form 10-K Annual Report and (to
the extent not included in such Form 10-K) a copy of Borrower's annual
consolidated financial statements for such fiscal year including balance sheet,
income statement, statement of cash flows and statement of shareholders' equity.
All such financial statements (whether or not included in Borrower's Form 10-K)
must be audited (with an

                                      -26-
<PAGE>

unqualified opinion) by Borrower's CPA and certified by Borrower's Chief
Financial Officer (or other officer acceptable to Agent).

          (b)  As soon as available but not later than sixty (60) days after
each fiscal quarter end, Borrower's Form 10-Q Quarterly Report and (to the
extent not included in such Form 10-Q) a copy of Borrower's consolidated
financial statements for such fiscal quarter, including balance sheet, income
statement, statement of cash flows and statement of shareholders' equity. All
such financial statements must be certified by Borrower's Chief Financial
Officer (or other officer acceptable to Agent).

          (c)  As soon as available but not later than ninety (90) days after
Borrower's fiscal year end, Borrower's annual three-year consolidated financial
projection, including balance sheet and income statement, in a format and with
such detail as Agent may require. These projections must be certified by
Borrower's Chief Financial Officer (or other officer acceptable to Agent).

          (d)  Copies of Borrower's Form 8-K Current Reports and all other
filings within fifteen (15) days after the date of filing with the Securities
and Exchange Commission, and copies of all press releases made by Borrower.

          (e)  As soon as available but not later than sixty (60) days after the
end of each of the first three fiscal quarters of Borrower's fiscal year, and as
soon as available but not later than ninety (90) days after the end of each of
Borrower's fiscal years, Borrower's quarterly internal management reports
(including (i) a schedule of all Debt Service for the prior quarter, (ii) a
schedule of Net Operating Income for each Real Property and other real property
asset for the preceding four (4) fiscal quarters, (iii) a schedule listing all
Indebtedness secured by a Lien on any real property assets of Borrower or any
Borrower Entity or Joint Venture Entity, (iv) a statement of the number of
apartment units (by project and location) under development (as defined in
Section 6.4(g)) by Borrower or any Borrower Entity or Joint Venture Entity at
fiscal quarter-end, (v) a schedule identifying all real property leaseholds held
by Borrower or any Borrower Entity or Joint Venture Entity at fiscal quarter-
end, and (vi) a schedule showing the Borrower's Share of each Borrower Entity
that is not a Guarantor and of each Joint Venture Entity at fiscal quarter-end).
These reports must be certified by Borrower's Chief Financial Officer (or other
officer acceptable to Agent).

          (f)  At the time of the delivery of the financial statements provided
for in Sections 6.2(a) and (b), a certificate executed by the Chief Financial
Officer of Borrower certifying compliance with all financial covenants herein,
including appropriate supporting schedules and calculations, and certifying that
to the best of the such officer's knowledge, no Event of Default has occurred
and is continuing or would result after notice or passage of time or both or, if
any Event of Default has occurred and is continuing or would result after notice
or passage of time or both, specifying the nature and extent thereof.
Notwithstanding anything to the contrary contained herein and

                                      -27-
<PAGE>

without limiting Agent's or the Banks' other rights and remedies, if any
certificate required under this Section 6.2 is not provided on or before the due
date therefor, Borrower shall be prohibited from any further borrowing under the
Loan Documents until such certificate is provided.

     6.3  Other Information.
          ------------------

          Borrower shall provide Agent:

          (a)  Promptly upon, and in any event within forty-eight (48) hours
after Borrower first has actual knowledge of (i) its failing to continue to
qualify as a real estate investment trust as defined in Section 856 of the Code
(or any successor provision thereof), (ii) any act by Borrower causing its
election to be taxed as a real estate investment trust to be terminated, (iii)
any act causing Borrower to be subject to the taxes imposed by Section 857(b)(6)
of the Code (or any successor provision thereto), or (iv) Borrower failing to be
entitled to a dividends paid deduction which meets the requirements of Section
857 of the Code, a notice of any such occurrence or circumstance.

          (b)  Such additional financial and other information as Agent may
reasonably request from time to time.

     6.4  Financial Covenants.
          --------------------

          (a)  Minimum Net Worth. Borrower will maintain a Tangible Net Worth of
               -----------------
not less than (i) Six Hundred Million Dollars ($600,000,000), plus (ii) seventy
percent (70%) of Net Offering Proceeds received by Borrower after June 30, 1998.

          (b)  Total Liabilities to Total Assets. The ratio of Total Liabilities
               ---------------------------------
to Total Assets shall not exceed 0.50:1.

          (c)  Secured Indebtedness to Total Assets. The ratio of Secured
               ------------------------------------
Indebtedness to Total Assets shall not exceed 0.30:1.

          (d)  Unencumbered Real Property to Unsecured Indebtedness;
               -----------------------------------------------------
Unencumbered Real Property NOI to Unsecured Interest Expense.
------------------------------------------------------------

               (i)   The ratio of (A) Total Real Property Market Value of all
     Unencumbered Real Property to (B) total outstandings under Unsecured
     Indebtedness shall not be less than 1.75:1.

               (ii)  The ratio of

                     (A)  the sum of (1) the aggregate Net Operating Income of
     all Unencumbered Real Properties owned directly by Borrower or any
     Controlled

                                      -28-
<PAGE>

     Borrower Entity that is a Guarantor, plus (2) to the extent that the
     aggregate contribution to the amount determined in accordance with this
     clause (A) attributable to this subclause (2) is not in excess of 10% of
     such total amount, for each (a) Controlled Borrower Entity that is not a
     Guarantor or (b) Controlled Joint Venture Entity (whether or not it is a
     Guarantor), Borrower's Share of the Net Operating Incomes of all
     Unencumbered Real Properties owned directly by such Person; to

                    (B)  Unsecured Interest Expense for any fiscal quarter,
     shall not be less than 1.75:1.

          (e)  EBITDA to Debt Service. The ratio of EBITDA to Debt Service shall
               ----------------------
not be less than 2.00:1.

          (f)  Distributions.
               --------------

               (i)  Subject to subparagraph (ii) below, aggregate distributions
     by Borrower, determined on a consolidated basis, shall not exceed the
     following, as reported in accordance with GAAP, for any period of four (4)
     consecutive fiscal quarters of Borrower ended on December 31 of any
     calendar year: the greater of (A) ninety-five percent (95%) of Funds From
     Operations for such period, or (B) an amount, but not in excess of one
     hundred percent (100%) of Funds From Operations for such period, as
     Borrower may be required to distribute to its shareholders in order to
     maintain compliance with Section 6.15. For purposes of this Section 6.4(f),
     the term "distributions" shall mean and include (A) all dividends and other
     distributions to, and the repurchase of shares or other equity interests
     from, the holder of any equity interests in Borrower, BRE Property
     Investors LLC or any other Consolidated Borrower Entity or Consolidated
     Joint Venture Entity, other than (B) (1) redemptions of equity interests
     for common stock of Borrower, and (2) to the extent not in excess of
     $5,000,000 in any one fiscal year, redemptions of equity interests in BRE
     Property Investors LLC for cash or property other than common stock of
     Borrower pursuant to the redemption provisions of its Charter Documents as
     in effect on the date hereof.

               (ii) No distributions (or redemptions in cash or property, other
     than common stock of Borrower, of equity interests in BRE Property
     Investors LLC not constituting distributions) shall be made during the
     continuance of any Event of Default arising out of Borrower's failure to
     pay any monetary obligation when due under any Loan Document (a "Monetary
     Default"). Aggregate distributions or redemptions, in cash or property
     other than common stock of Borrower, of equity interests in BRE Property
     Investors LLC during the continuance of any Event of Default other than a
     Monetary Default (determined on a consolidated basis) shall not exceed the
     lesser of (A) the aggregate amount of distributions permitted to be made
     during the continuance thereof under

                                      -29-
<PAGE>

     subparagraph (i) above, or (B) the minimum amount that Borrower must
     distribute to its shareholders in order to maintain compliance with Section
     6.15.

          (g)  Development. At no time shall the total number of apartment units
               -----------
under development by Borrower or any Borrower Entity or Joint Venture Entity
exceed the lesser of (i) twenty percent (20%) of the total number of apartment
units (excluding such units under development) then owned by Borrower or any
Borrower Entity or Joint Venture Entity, and (ii) 6,000 apartment units. For
purposes of the foregoing covenant, "development" shall mean all units under
construction, at or beyond the foundation stage, within a particular apartment
project, until the construction of all units (or discreet phase(s) thereof, if
applicable) shall have been completed, certificates of occupancy shall have been
issued with respect to such units, and such units shall be available for
immediate lease and occupancy in the normal course of business.

          (h)  Maximum Unsecured Lines of Credit. Borrower shall not permit
               ---------------------------------
total commitments (disbursed and undisbursed) with respect to Unsecured
Indebtedness of Borrower, any Borrower Entity or any Joint Venture Entity under
lines of credit to exceed the sum of (i) the Maximum Loan Amount, plus (ii) the
total commitments (disbursed and undisbursed) made available to Borrower under
any and all other lines of credit from time to time provided to Borrower, any
Borrower Entity or any Joint Venture Entity by (A) Agent and the Banks, or (B) a
group of lenders, consisting of BofA and one or more other lenders, for whom
BofA serves as agent at the time such line of credit is first made available.
Further, neither Borrower nor any Borrower Entity or Joint Venture Entity shall
enter into any commitment for Unsecured Indebtedness under lines of credit other
than under (x) this Agreement, and (y) any other lines of credit from time to
time provided to Borrower, any Borrower Entity or any Joint Venture Entity by
Agent and the Banks or by a group of lenders, consisting of BofA and one or more
other lenders, for whom BofA serves as agent at the time such line of credit is
first made available.

          (i)  Unsecured Indebtedness. Neither Borrower nor any Borrower Entity
               ----------------------
or Joint Venture Entity shall incur, or permit to exist, any Unsecured
Indebtedness other than (i) Indebtedness under revolving lines of credit to the
extent permitted under Section 6.4(h), and (ii) non-revolving, non-amortizing
Indebtedness with a maturity or call date not earlier than one (1) year after
the Maturity Date under the Note in effect at the time such Indebtedness is
incurred; provided, however, that the foregoing amortization restriction shall
not apply to amortization required, as of the date of this Agreement, under the
Prudential Indebtedness, and provided further that no Guarantor or Other
Unencumbered Property Owner shall incur, or permit to exist, any Indebtedness
other than Non-Recourse Indebtedness.

          (j)  Calculation. Each of the foregoing ratios and financial
               -----------
requirements shall be calculated as of the last day of each fiscal quarter, but
shall be satisfied at all times.

                                      -30-
<PAGE>

     6.5  Taxes and Other Liabilities.
          ----------------------------

          Borrower shall pay and discharge, and shall cause each Controlled
Borrower Entity and Controlled Joint Venture Entity to pay and discharge, before
the same become delinquent and before penalties accrue thereon, all taxes,
assessments and governmental charges upon or against it or any of its
properties, and all its other liabilities at any time existing, except to the
extent and so long as:

          (a)  The same are being contested in good faith and by appropriate
proceedings in such manner as not to cause any Material Adverse Effect on
Borrower or any Material Borrower Entity or the loss of any right of redemption
from any sale thereunder; and

          (b)  Borrower shall have set aside on its books reserves (segregated
to the extent required by generally accepted accounting principles) adequate
with respect thereto.

     6.6  Notices to Agent.
          -----------------

          Borrower shall promptly notify Agent in writing of:

          (a)  any Event of Default hereunder or any event which would become an
Event of Default hereunder upon the giving of notice, the lapse of time, or
both;

          (b)  any single lawsuit or arbitration claiming over Two Hundred Fifty
Thousand Dollars ($250,000), and lawsuits or arbitrations collectively claiming
over One Million Dollars ($1,000,000), against Borrower or any Guarantor;

          (c)  any significant dispute between Borrower or any Guarantor and any
government authority;

          (d)  Borrower's receipt of any notice relating to (i) any change in or
reaffirmation of, or proposed change in or reaffirmation of, the rating of
Borrower's senior long-term unsecured debt obligations by any Rating Agency, or
(ii) the issuance of any Rating by a Rating Agency as to which no Rating is then
in effect; and

          (e)  any event, circumstance or condition which may have a Material
Adverse Effect on Borrower or any Guarantor.

     6.7  Audits; Books and Records.
          --------------------------

          Borrower shall (i) maintain (and shall cause each Controlled Borrower
Entity and Controlled Joint Venture Entity to maintain) adequate books and
records, and (ii) allow  and its agents (and cause Controlled Borrower Entities
and Controlled Joint Venture Entities to allow Agent and its agents) to inspect
Borrower's and such Controlled

                                      -31-
<PAGE>

Borrower Entities' and Controlled Joint Venture Entities' properties and
examine, audit and make copies of books and records at any reasonable time. If
any of Borrower's properties, books or records are in the possession of a third
party, Borrower hereby authorizes that third party to permit Agent or its agents
to have access to perform inspections or audits and to respond to Agent's
requests for information concerning such properties, books and records.

     6.8  Compliance with Laws.
          ---------------------

          Borrower shall comply, and shall cause each Controlled Borrower Entity
and Controlled Joint Venture Entity to comply, with the laws (including any
fictitious name statute), regulations, and orders of any government body with
authority over such Person's business.

     6.9  Preservation of Rights.
          -----------------------

          Borrower shall maintain and preserve, and shall cause each Material
Borrower Entity to maintain and preserve, all rights, privileges, and franchises
Borrower or such Material Borrower Entity now has (or, if later, as of the date
such Person becomes a Material Borrower Entity).

     6.10 Maintenance of Properties.
          --------------------------

          Borrower shall make, and shall cause each Controlled Borrower Entity
and Controlled Joint Venture Entity to make, repairs, renewals, or replacements
to keep such Person's properties in good working condition.

     6.11 Insurance.
          ----------

          Borrower shall maintain, or cause to be maintained, insurance in such
amounts and covering such risks as is usually carried by companies engaged in
similar businesses and owning similar properties in the same general areas in
which Borrower and the Controlled Borrower Entities and Controlled Joint Venture
Entities operate and maintain such other insurance and coverages as may be
reasonably required by Agent.  All such insurance shall be in form and amount
and with companies satisfactory to Agent.  Upon Agent's request, Borrower shall
furnish Agent with a copy of the policy or binder of all such insurance and
continuing evidence that such insurance remains in force at applicable renewal
dates.

     6.12 ERISA Plans.
          ------------

          Borrower shall give prompt written notice to Agent of the occurrence
of any reportable event under Section 4043(b) of ERISA for which the PBGC
requires 30 day notice;  any action by Borrower or any Borrower Entity to
terminate or withdraw from a Plan or the filing of any notice of intent to
terminate under Section 4041 of

                                      -32-
<PAGE>

ERISA; any notice of noncompliance made with respect to a Plan under Section
4041(b) of ERISA; or the commencement of any proceeding with respect to a Plan
under Section 4042 of ERISA.

     6.13 Indemnity of Guarantors.
          ------------------------

          Borrower shall indemnify and hold harmless each Guarantor from and
against any liability (in the form of indebtedness repaid to Agent or any Bank)
in respect of Borrower's obligations under the Loan Documents, including (if
applicable) by way of foreclosure on any collateral in which such Guarantor may
at any time hereafter grant to Agent a security interest) in excess of the
benefit realized by such Guarantor from the proceeds of the Loan.  As between
Borrower and each Guarantor, Borrower shall be responsible to reimburse each
Guarantor in respect of amounts paid by such Guarantor pursuant to its Guaranty
of Borrower's obligations under the Loan Documents to the end that Borrower, and
each Guarantor, ultimately bear the burden of their respective shares of such
obligations.  Borrower's obligations to the Guarantors under this Section 6.13
shall be subordinated to its obligations to Agent and the Banks as provided in
the Guaranties.

     6.14 Additional Negative Covenants.
          ------------------------------

          Borrower shall not, without Agent's written consent (delivered upon
such consent of any or all of the Banks as may be required under the Co-Lender
Agreement):

          (a)  Merge or dissolve into, or consolidate with, any Person, or
permit any Material Borrower Entity to do so, except in each case for mergers
and consolidations (i) which result in Borrower or such Material Borrower
Entity, as the case may be, being the surviving entity (provided that Borrower
shall be the surviving entity in any merger or consolidation with a Material
Borrower Entity), (ii) which do not have a Material Adverse Effect on Borrower
or the affected Material Borrower Entity, and (iii) which do not result in
Borrower, following the consummation of such merger or consolidation, being in
default under any term or condition of this Agreement. Neither Borrower nor any
Material Borrower Entity shall sell, lease, transfer, encumber or otherwise
dispose of all or any substantial part of its properties or assets, whether in a
single transaction or series of transactions, if such sale, lease, transfer,
encumbrance or other disposition would cause a Material Adverse Effect on
Borrower or such Material Borrower Entity; nor shall Borrower transfer to any
Borrower Entity or Joint Venture Entity any Real Property or other material
asset owned as of the date hereof or that constitutes proceeds (or proceeds of
proceeds) of any Real Property or other material asset owned by Borrower as of
the date hereof;

          (b)  Except for any such amendment that is required under any
requirement of law imposed by any governmental authority or in order to maintain
compliance with Section 6.15, amend its articles of incorporation or by-laws, or
permit

                                      -33-
<PAGE>

any Material Borrower Entity to amend any of its charter documents, except in
each case (i) upon at least ten (10) Banking Days' prior written notice to
Agent, and (ii) if Agent notifies Borrower within such 10-day period that such
amendment is, in Agent's reasonable judgment, a material amendment, with the
prior written consent of Agent;

          (c)  Suspend its business activity, or permit any Material Borrower
Entity to suspend its business activity, in either case for more than two days;

          (d)  Voluntarily commence any case under the United States Bankruptcy
Code (or any successor statute) with respect to itself unless Borrower
concurrently causes each Guarantor to commence a voluntary case under the United
States Bankruptcy Code (or such successor statute) with respect to itself, and
requests that all such cases be consolidated with its own.

          (e)  Use any proceeds of any advance under the Loan Documents (or
permit such proceeds to be used), directly or indirectly, to purchase or carry,
or reduce or retire any loan incurred to purchase or carry any "Margin Stock"
(within the meaning of Regulation U of the Board of Governors of the Federal
Reserve System) or to extend credit to others for the purpose of purchasing or
carrying any Margin Stock;

          (f)  Permit Borrower's aggregate Investments in Borrower Entities or
Joint Venture Entities that have not executed and delivered a Guaranty that
remains in full force and effect to exceed at any time ten percent (10%) of
Borrower's consolidated total assets, determined in accordance with GAAP;

          (g)  Cease to Control any Material Borrower Entity, other Guarantor or
Other Unencumbered Property Owner; or

          (h)  Create, suffer or permit to exist any Lien on its interest in any
Guarantor or Other Unencumbered Property Owner.

     6.15 Continued Status as a REIT; Prohibited Transactions.
          -----------------------------------------------------

          Borrower (i) will continue to be a real estate investment trust as
defined in Section 856 of the Code (or any successor provision thereto), (ii)
will not revoke its election to be a real estate investment trust, (iii) will
not engage in any "prohibited transactions" as defined in Section 856(b)(6)(iii)
of the Code (or any successor provision thereto), and (iv) will continue to be
entitled to a dividend paid deduction meeting the requirements of Section 857 of
the Code.

     6.16 NYSE Listed Company.
          --------------------

          The common stock of Borrower shall at all times be listed for trading
and be traded on the New York Stock Exchange.

                                      -34-
<PAGE>

     6.17 Conduct of Business.
          --------------------

          Borrower shall engage primarily in the business of direct ownership,
operation and acquisition or development for its own account of apartment
projects located in the Western United States (which shall be understood to mean
Colorado and States westward); provided, however, that the foregoing shall not
restrict either Borrower's continued ownership and operation of assets owned as
of the Effective Date or other business activities of Borrower or any Borrower
Entity reasonably incidental to business activities otherwise permitted under
this Section 6.17.

     6.18 Delivery of Guaranties and Other Documents.
          -------------------------------------------

          Within fifteen (15) days after (a) any Borrower Entity becomes a
Material Borrower Entity, or (b) Borrower forms or acquires, by merger or
otherwise, a Material Borrower Entity:  Borrower shall (x) give Agent written
notice thereof, (y) cause such Material Borrower Entity to execute and deliver
to Agent a Guaranty, and (z) deliver to Agent (i) with respect to such Material
Borrower Entity, the documents described in Sections 4.1(b) and 4.1(c), (ii) an
updated Schedule 1, reflecting such information with respect to such Material
Borrower Entity as is required to be reflected on Schedule 1 pursuant to Section
5.1(b), and (iii) an opinion of counsel addressing the due formation, existence
and good standing of such Person, the due authorization, execution and delivery
by such Person of such Guaranty, the enforceability thereof, and such other
matters, if any, as Agent may reasonably request.  Upon the inclusion of any
real property asset owned by a Borrower Entity or Joint Venture Entity other
than a Material Borrower Entity as Unencumbered Real Property by virtue of the
execution and delivery by such Borrower Entity or Joint Venture Entity of a
Guaranty, or by a Person that would, as a result of such inclusion, become an
Other Unencumbered Property Owner (but, in either case, without limiting the
requirement that such real property asset qualify in all respects as
"Unencumbered Real Property" in order to be included as such), Borrower shall
deliver to Agent (1) with respect to such Guarantor or Other Unencumbered
Property Owner, the documents described in Sections 4.1(b) and 4.1(c), as
applicable, (2) an updated Schedule 1, reflecting such information with respect
to such Guarantor or Other Unencumbered Property Owner as is required to be
reflected on Schedule 1 pursuant to Section 5.1(b), and (3) if such Person is
becoming a Guarantor, an opinion of counsel addressing the due formation,
existence and good standing of such Person, the due authorization, execution and
delivery by such Person of such Guaranty, the enforceability thereof, and such
other matters, if any, as Agent may reasonably request.

     6.19 Cooperation.
          ------------

          Borrower shall take any action reasonably requested by Agent to carry
out the intent of the Loan Documents.

                                      -35-
<PAGE>

     6.20 Reporting Under Primary Agreement.
          ---------------------------------

          So long as Borrower provides Agent with the reporting information
required under Section 5 and Section 6 of the Primary Agreement, such disclosure
shall constitute disclosure under this Agreement and Borrower shall not be
required to deliver duplicative information or documentation to the Agent.

7.  COLLATERAL

     7.1  Collateral.  This Line of Credit is unsecured.
          ----------

8.  DEFAULT

     If any of the following events occurs (an "Event of Default"), Agent may
(and shall, upon the instructions of Majority Banks) declare Borrower in
default, stop making any additional credit available to Borrower, and require
Borrower to repay its entire debt immediately and without prior notice.
However, if a bankruptcy petition is filed with respect to Borrower, the entire
debt outstanding under the Loan Documents shall automatically be due
immediately.

     8.1  Failure to Pay.
          ---------------

          Borrower, or any Guarantor, fails to make any payment due under the
Loan Documents (i) within fifteen (15) days after the date when due, or (ii)
within such other period, or no period, as may expressly be provided in any
other Loan Document to constitute an Event of Default.

     8.2  False Information.
          ------------------

          Borrower, or any Guarantor, has given Agent, or any Bank, false or
misleading information or representations.

     8.3  Bankruptcy.
          -----------

          Borrower, or any Borrower Entity or Joint Venture Entity, files a
bankruptcy petition or makes a general assignment for the benefit of creditors,
or a bankruptcy petition is filed against any such Person.  The default will be
deemed cured if any bankruptcy petition filed against Borrower or any Borrower
Entity or Joint Venture Entity is dismissed within a period of forty-five (45)
days after the filing; provided, however, that neither Agent nor any Bank will
be obligated to extend any additional credit to Borrower during that period.

                                      -36-
<PAGE>

     8.4  Receivers; Dissolution.
          -----------------------

          A receiver or similar official is appointed for Borrower's, or any
Borrower Entity's or Joint Venture Entity's, business, or the business is
terminated; or any order, judgment or decree is entered against Borrower or any
Borrower Entity or Joint Venture Entity decreeing its involuntary dissolution or
split up and remains undischarged and unstayed for a period in excess of thirty
(30) days; the directors or other managing body of, or the members, shareholders
or other holders of the equity interests in, Borrower or any Material Borrower
Entity shall take any action authorizing the dissolution of Borrower or any
Material Borrower Entity; or Borrower or any Material Borrower Entity shall
otherwise dissolve or (except as the result of the merger of a Material Borrower
Entity into Borrower) cease to exist.

     8.5  Lawsuits.
          ---------

          Any lawsuit(s) or arbitration(s) are initiated against Borrower or any
Material Borrower Entity involving claims exceeding in the aggregate Fifty
Million Dollars ($50,000,000) or more at any one time in excess of any insurance
coverage.

     8.6  Judgments.
          ----------

          Any judgment or arbitration award is entered against Borrower or any
Material Borrower Entity, or Borrower, or any Material Borrower Entity, enters
into any settlement agreement with respect to any litigation, claim or
arbitration, in an aggregate amount of Ten Million Dollars ($10,000,000) or more
in excess of any insurance coverage.

     8.7  ERISA Plans.
          ------------

          The occurrence of any of the following event(s) with respect to
Borrower or any Material Borrower Entity, provided such event(s) could
reasonably be expected, in the judgment of Agent, to subject Borrower or such
Material Borrower Entity to any tax, penalty or liability (or any combination of
the foregoing) which in the aggregate could have a Material Adverse Effect on
Borrower or such Material Borrower Entity with respect to a Plan:

          (a)  A reportable event occurs with respect to a Plan which in the
reasonable judgment of Agent may result in the termination of such Plan for
purposes of ERISA.

          (b)  Any Plan termination (or commencement of proceedings to terminate
a Plan) or Borrower's, or any Material Borrower Entity's, full or partial
withdrawal from a Plan.

                                      -37-
<PAGE>

     8.8  Government Action.
          ------------------

          Any government authority takes action that the Majority Banks believe
could have a Material Adverse Effect on Borrower or any Material Borrower
Entity.

     8.9  Material Adverse Change.
          ------------------------

          Any event, circumstance or condition shall occur, or is reasonably
likely to occur, which the Majority Banks believe could have a Material Adverse
Effect on Borrower or any Material Borrower Entity.

     8.10 Other Breach Under This Agreement or Other Loan Documents.
          ----------------------------------------------------------

          (a)  Borrower fails to meet the conditions of or fails to perform any
obligation under any of Sections 6.2, 6.5, 6.11 and 6.18, and such failure
continues uncured for a period of fifteen (15) days.

          (b)  Borrower, or any Guarantor, fails to meet the conditions of or
fails to perform any obligation under any term of this Agreement or any other
Loan Document not specifically referred to in this Article 8. If, in Agent's
opinion, the breach is capable of being remedied, the breach will not be
considered an Event of Default under this Agreement for a period of thirty (30)
days after the date on which Agent gives written notice of the breach to
Borrower; provided, however, that neither Agent nor the Banks will be obligated
to extend any additional credit to Borrower during that period.

     8.11 Cross-Default.
          --------------

          Any default occurs under any agreement in connection with any credit
Borrower or any Controlled Borrower Entity, Consolidated Borrower Entity,
Controlled Joint Venture Entity or Consolidated Joint Venture Entity, or any of
Borrower's other Affiliates, has obtained from any creditor, or which
constitutes an Accommodation Obligation of Borrower or any such other Person, if
the default consists of a failure to make a payment when due or gives the
creditor the right to accelerate (or causes the acceleration of) the obligation.

9.   ENFORCING THIS AGREEMENT

     9.1  Remedies.
          ---------

          If an Event of Default occurs under the Loan Documents, Agent and the
Banks may exercise any right or remedy they have under any of the Loan Documents
or which is otherwise available at law or in equity.  All of such rights and
remedies shall be cumulative.  At the Majority Banks' option, exercisable in
their sole discretion, all of Borrower's obligations under the Loan Documents
will become immediately due and

                                      -38-
<PAGE>

payable without notice of default, presentment or demand for payment, protest or
notice of nonpayment or dishonor, or other notices or demands of any kind.

10.  APPOINTMENT AND AUTHORIZATION OF AGENT

     10.1 Appointment.
          ------------

          Each Bank hereby irrevocably appoints, designates and authorizes Agent
to take such action on its behalf under the provisions of this Agreement and
each other Loan Document and to exercise such powers and perform such duties as
are expressly delegated to it by the terms of this Agreement or any other Loan
Document, together with such powers as are reasonably incidental thereto and as
further provided in the Co-Lender Agreement described below.

     10.2 Powers.
          -------

          Subject to the limitations set forth in the Loan Documents and Co-
Lender Agreement, Agent's powers include but are not limited to the power:  (i)
to administer, manage and service the Line of Credit; (ii) to enforce the Loan
Documents; (iii) to make all decisions under the Loan Documents in connection
with the day-to-day administration of the Line of Credit, any inspections
authorized by the Loan Documents, and other routine administration and servicing
matters; (iv) to collect and receive from Borrower or any third persons all
payments of amounts due under the terms of the Loan Documents and to distribute
the amounts thereof to the Banks; (v) to collect and distribute or disburse all
other amounts due under the Loan Documents; (vi) to grant or withhold consents,
approvals or waivers, and make any other determinations in connection with the
Loan Documents; and (vii) to exercise all such powers as are incidental to any
of the foregoing matters.  Agent shall furnish to Banks copies of material
documents, including confidential ones, received from Borrower regarding the
Line of Credit, the Loan Documents and the transactions contemplated thereby.
Agent shall have no responsibility with respect to the authenticity, validity,
accuracy or completeness of the information provided.

     10.3 Limitation on Duties.
          ---------------------

          Notwithstanding any provision to the contrary contained in any Loan
Document, Agent shall not have any duties or responsibilities, except those
expressly set forth in the Loan Documents or the Co-Lender Agreement, nor shall
Agent have any fiduciary relationship with any Bank, and no implied covenants,
responsibilities, duties, obligations or liabilities shall be read into this
Agreement or any other Loan Document against Agent.

                                      -39-
<PAGE>

     10.4 Co-Lender Agreement.
          --------------------

          Borrower acknowledges that the Banks have executed a Co-Lender
Agreement (as amended from time to time, the "Co-Lender Agreement") to
supplement the Loan Documents with respect to the relationship of the Banks and
Agent among themselves in connection with the credit facilities provided under
the Loan Documents.  The Co-Lender Agreement is not a Loan Document.  Each Bank
acknowledges that, upon the execution and delivery of this Agreement by all
parties, it shall become a party to (i) the other Loan Documents (other than the
separate letter understanding between Borrower and BofA referred to in Section
2.1, which separate letter understanding shall hereafter constitute the
"Supplemental Letter" for purposes of any other Loan Document or the Co-Lender
Agreement) to which the Banks are party and (ii) the Co-Lender Agreement, and
shall succeed to all of the rights and be obligated to perform all of the
obligations of a Bank under the Loan Documents.  Each Bank agrees that it will
perform all of the obligations required to be performed by it as a Bank under
the Loan Documents and the Co-Lender Agreement.

     10.5 Resignation; Replacement. Agent may, and at the request of the
          ------------------------
Majority Banks shall, resign as Agent upon 30 days' notice to the Banks. If
Agent resigns under this Agreement, the Majority Banks subject to Section
10.5(b)) shall appoint from among the Banks a successor agent. If no successor
agent is appointed prior to the effective date of the resignation of Agent,
Agent may appoint, after consulting with the Banks, a successor agent from among
the Banks. Upon the acceptance of appointment as successor agent hereunder, such
successor agent shall succeed to all the rights, powers and duties of the
retiring Agent and the term "Agent" shall mean such successor agent, and the
retiring Agent's appointment, powers and duties as Agent shall terminate. After
any retiring Agent's resignation hereunder as Agent, the provisions regarding
payment of costs and expenses and indemnification of Agent shall inure to its
benefit as to any actions taken or omitted to be taken by it while it was Agent
under this Agreement. If no successor agent has accepted appointment as Agent by
the date which is 30 days following a retiring Agent's notice of resignation,
the retiring Agent's resignation shall nevertheless thereupon become effective,
and the Banks shall perform all of the duties of Agent hereunder until such
time, if any, as the Majority Banks appoint a successor agent.

11.  ASSIGNMENTS, PARTICIPATIONS, ETC.

     11.1 Assignments.
          ------------

          A Bank may at any time assign to one or more Eligible Assignees (each
an "Assignee") with the written consent of Borrower (other than during the
existence of an Event of Default) and of Agent (at all times), which consent
shall not be unreasonably withheld (provided that no written consent shall be
required for an Eligible Assignee that is an Affiliate of such assignor Bank)
all or part of its Pro Rata Share of the Line of Credit and the other rights and
obligations of such assignor Bank hereunder with respect

                                      -40-
<PAGE>

to the Committed Loans and the Line of Credit in a minimum amount (with respect
to such Bank's Commitment) of $5,000,000; provided, however, that no such
assignment (other than an assignment of the assignor Bank's entire remaining
Commitment) shall be permitted if the effect thereof is to cause the remaining
Commitment of the assignor Bank to be less than $15,000,000, and no assignment
may be made of any outstanding Committed Loan except in connection with an
assignment of a corresponding proportional share of the assignor Bank's
Commitment. However, such assignment shall be conditioned on, and Borrower and
Agent may continue to deal solely and directly with such assignor Bank until,
(i) written notice of such assignment, substantially in the form of the attached
Exhibit F shall have been given to Borrower and Agent by such Bank and the
Assignee; (ii) such Bank and its Assignee shall have delivered to Agent and
Borrower an Assignment and Assumption Agreement substantially in the form of the
attached Exhibit G ("Assignment and Assumption Agreement") (together with any
Note(s) subject to such assignment); and (iii) the Assignor has paid (or caused
to be paid) to Agent a processing fee in the amount of $5,000.

     11.2 Effects of Assignment.
          ----------------------

          From the date that Agent notifies the assignor Bank that all
conditions and requirements of the assignment have been met, then to the extent
that rights and obligations hereunder have been assigned (i) the Assignee
thereunder shall be a party hereto and shall have the rights and obligations of
a Bank under the Loan Documents and the Co-Lender Agreement, (ii) the assignor
Bank shall relinquish such assigned rights and be released from such assigned
obligations under the Loan Documents, (iii) this Agreement shall be deemed to be
amended to the extent necessary to reflect the addition of the Assignee and the
resulting adjustment of the Pro Rata Shares of the Loan arising therefrom, and
(iv) the Pro Rata Share allocated to an Assignee shall reduce the Pro Rata Share
of the assigning Bank.

     11.3 Participations.
          ---------------

          A Bank (the "originating Lender") may sell to one or more Persons not
Affiliates of Borrower (a "Participant") participating interests in the Line of
Credit made by the originating Lender; provided that (i) the originating
Lender's obligations under the Loan Documents and the Co-Lender Agreement shall
remain unchanged, (ii) the originating Lender shall remain solely responsible
for the performance of such obligations, (iii) Borrower and Agent shall continue
to deal solely and directly with the originating Lender in connection with the
Advances and Loan Documents, (iv) (A) no Bank shall transfer or grant any
participating interest under which the Participant has rights to approve any
amendment, consent or waiver with respect to any Loan Document, except in the
case of a participation that includes an interest in the originating Lender's
Commitment, to the extent such amendment, consent or waiver would require
unanimous consent of the Banks under Section 7(a) of the Co-Lender Agreement,
(v) with respect to the sale of participating interests in the Line of Credit,
each participating interest in a

                                      -41-
<PAGE>

Bank's Commitment shall be in a minimum amount of $5,000,000, and no such
participation shall be permitted if the non-participated interest of the
originating Lender in its Commitment would thereafter be less than $15,000,000.
A Participant shall not have any rights under the Loan Documents or the Co-
Lender Agreement, and all amounts payable by Borrower hereunder shall be
determined as if the originating Lender had not sold such participation.

     11.4 Pledges.
          --------

          Notwithstanding any other provision of this Agreement, any other Loan
Document or the Co-Lender Agreement:  (i) a Bank may pledge its interest in
Borrower's obligations under the Loan Documents in favor of any Federal Reserve
Bank in accordance with Federal law.

12.  MISCELLANEOUS

     12.1 California Law.
          ---------------

          This Agreement is governed by California law but without regard to the
choice of law rules of California.

     12.2 WAIVER OF RIGHT TO TRIAL BY JURY.
          ---------------------------------

          EACH PARTY TO THIS AGREEMENT HEREBY EXPRESSLY WAIVES ANY RIGHT TO
TRIAL BY JURY OF ANY CLAIM, DEMAND, ACTION OR CAUSE OF ACTION (A) ARISING UNDER
THE LOAN DOCUMENTS, INCLUDING, WITHOUT LIMITATION, ANY PRESENT OR FUTURE
MODIFICATION THEREOF, OR (B) IN ANY WAY CONNECTED WITH OR RELATED OR INCIDENTAL
TO THE DEALINGS OF THE PARTIES HERETO OR ANY OF THEM WITH RESPECT TO THE LOAN
DOCUMENTS (AS NOW OR HEREAFTER MODIFIED) OR ANY OTHER INSTRUMENT, DOCUMENT OR
AGREEMENT EXECUTED OR DELIVERED IN CONNECTION HEREWITH, OR THE TRANSACTIONS
RELATED HERETO OR THERETO, IN EACH CASE WHETHER SUCH CLAIM, DEMAND, ACTION OR
CAUSE OF ACTION IS NOW EXISTING OR HEREAFTER ARISING, AND WHETHER SOUNDING IN
CONTRACT OR TORT OR OTHERWISE.  EACH PARTY HEREBY AGREES AND CONSENTS THAT ANY
PARTY TO THIS AGREEMENT MAY FILE AN ORIGINAL COUNTERPART OR A COPY OF THIS
SECTION WITH ANY COURT AS WRITTEN EVIDENCE OF THE CONSENT OF THE PARTIES HERETO
TO THE WAIVER OF ANY RIGHT THEY MIGHT OTHERWISE HAVE TO TRIAL BY JURY.

                                      -42-
<PAGE>

     12.3 Presentment, Demands and Notice.
          --------------------------------

          Neither Agent nor any Bank shall be under any duty or obligation to
make or give any presentment, demands for performances, notices of
nonperformance, protests, notices of protest or notices of dishonor in
connection with any obligation or indebtedness under the Loan Documents.

     12.4 Attorneys' Fees.
          ----------------

          In the event of a lawsuit or arbitration proceeding, including any
tort proceeding, between or among the parties hereto, the prevailing party is
entitled to recover costs and reasonable attorneys' fees (including any
allocated costs of in-house counsel) incurred in connection with the lawsuit or
arbitration proceeding, as determined by the court or arbitrator.

     12.5 Integration.
          ------------

          The Loan Documents, including this Agreement:  (a) integrate all the
terms and conditions incidental to the Loan Documents; (b) supersede all oral
negotiations and prior and other writings with respect to their subject matter;
and (c) are intended by the parties as the final expression of their agreement
with respect to the terms and conditions set forth in those documents and as the
complete and exclusive statement of the terms agreed to by the parties.  If
there is any conflict between the terms, conditions and provisions of this
Agreement and those of any other agreement or instrument, including any of the
other Loan Documents, the terms, conditions and provisions of this Agreement
shall prevail.  The Co-Lender Agreement addresses matters among the Banks and
Agent and is intended by the Banks and Agent to supplement and be compatible
with and not abrogate the Loan Documents, and Borrower's rights, obligations and
liabilities shall not be diminished or increased by the Co-Lender Agreement.

     12.6 Electronic Notices.
          -------------------

          Any agreement of Agent to receive certain notices from Borrower or the
Banks by telephone or facsimile is solely for their convenience and at their
request.  Agent shall be entitled to rely on the authority of any Person giving
such notice and Agent shall not have any liability to Borrower, any Bank, or
other Persons on account of any action taken or not taken by Agent in reliance
upon such telephonic or facsimile notice.

     12.7 Notices.
          --------

          Notices and other communications that Borrower, Agent or any Lender is
required to deliver under any Loan Document, or that any such Person desires to
deliver to any other party to a Loan Document, shall be sent to the address for
such Person set forth on the signature pages hereto.  Except as otherwise
specified:  (x) all notices or

                                      -43-
<PAGE>

other communications sent by mail, if duly given, shall be effective three (3)
Business Days after deposit into the mails, postage prepaid, (y) all notices or
other communications sent by a nationally recognized overnight courier service,
if duly given, shall be effective one (1) Business Day after delivery to such
courier service (with the relevant fees paid or duly provided for), and (z) all
other notices or other communications, if duly given or made, shall be effective
upon receipt. Any party may change its address for notices by notice delivered
to Agent or Borrower, as the case may be, in accordance with the provisions of
Section 12.7.

     12.8  Certain Acknowledgments by Borrower.
           ------------------------------------

           Borrower acknowledges that (i) it has been advised by counsel in the
negotiation, execution and delivery of this Agreement and the other Loan
Documents; and (ii) the relationship between Borrower, on the one hand, and
Agent and the Banks, on the other hand, in connection with the Loan Documents
and the transactions contemplated thereby is solely that of debtor and creditor;
no joint venture is created hereby or by the other Loan Documents or otherwise
exists (among Borrower and the Banks or between Borrower and Agent) by virtue of
the transactions contemplated hereby.

     12.9  Successors and Assigns.
           -----------------------

           This Agreement is binding on each of the parties' successors and
assignees.  Borrower agrees that it may not assign this Agreement or the other
Loan Documents without Agent's prior consent.  Agent and the Banks may sell
participations in or assign their rights under the Loan Documents in accordance
with Section 11, and may provide financial information about Borrower and the
Guarantors to actual or potential participants or assignees, without notice to
or consent of Borrower.

     12.10 No Third Parties Benefited.
           ---------------------------

           This Agreement is made and entered into for the sole protection and
benefit of Borrower, Agent, and the Banks and their respective successors and
assigns.  No trust fund is created by this Agreement and no other persons or
entities (other than Indemnified Persons) shall have any right of action under
this Agreement or any right to the proceeds of advances made pursuant to the
Loan Documents.

     12.11 Integration; Relation to Any Loan Commitment; Headings.
           -------------------------------------------------------

          (a)  The Loan Documents (i) integrate all the terms and conditions in
or incidental to this Agreement, (ii) supersede all oral negotiations and prior
writings with respect to their subject matter, including any loan commitment to
Borrower, and (iii) are intended by the parties as the final expression of the
agreement with respect to the terms and conditions set forth in those documents
and as the complete and exclusive statement

                                      -44-
<PAGE>

of the terms agreed to by the parties. No representation, understanding, promise
or condition shall be enforceable against any party unless it is contained in
the Loan Documents.

          (b)  If there is any conflict between the terms, conditions and
provisions of this Agreement and those of any other agreement or instrument,
including any other Loan Document, the terms, conditions and provisions of this
Agreement shall prevail.

          (c)  Headings and captions are for reference only and shall not affect
the interpretation or meaning of any provisions of this Agreement.

          (d)  The schedule(s) and exhibit(s) to this Agreement are hereby
incorporated in this Agreement.

    12.12 Interpretation.
          ---------------

          (a)  Time is of the essence in the performance of this Agreement by
Borrower.

          (b)  The word "include(s)" means "include(s), without limitation," and
the word "including" means "including but not limited to." No listing of
specific instances, items or matters in any way limits the scope or generality
of any language of this Agreement.

          (c)  Any accounting terms used in this Agreement which are not
specifically defined shall have the meanings customarily given them in
accordance with GAAP. All references herein to Borrower or any other Person, in
connection with any financial or related covenant, representation or
calculation, shall be understood to mean and refer to Borrower and such other
Person on a consolidated basis in accordance with GAAP, unless otherwise
specifically provided and subject in all events to any adjustments herein set
forth.

          (d)  Any time the phrase "to the best of Borrower's knowledge" or a
phrase similar thereto is used herein, it means: "to the actual knowledge of the
then officers of Borrower, after reasonable inquiry of those agents, employees
or contractors of Borrower who could reasonably be anticipated to have knowledge
with respect to the subject matter or circumstances in question and after review
of those documents or instruments which could reasonably be anticipated to be
relevant to the subject matter or circumstances in question."

          (e)  In each case where the consent or approval of Agent or the Banks
is required, or Agent's or the Banks' non-obligatory action is requested by
Borrower, such consent, approval or action shall be in the sole and absolute
discretion of Agent or the Banks, as the case may be (subject, in the case of
Agent, to receipt of such authorizations

                                      -45-
<PAGE>

of the Banks as may be required under the Co-Lender Agreement), unless otherwise
specifically indicated.

           (f)  Any time the word "or" is used herein, unless the context
otherwise clearly requires, it has the inclusive meaning represented by the
phrase "and/or". The words "hereof", "herein", "hereby", "hereunder" and similar
terms refer to this Agreement as a whole and not to any particular provision of
this Agreement. Article, section, subsection, clause, exhibit and schedule
references are to this Agreement unless otherwise specified. Any reference in
this Agreement to this Agreement or to any other Loan Document includes any and
all amendments, modifications, supplements, renewals or restatements thereto or
thereof, as applicable.

     12.13 Severability; Waivers; Amendments.
           ----------------------------------

           This Agreement may not be modified or amended except by a written
agreement signed by the parties.  Any consent or waiver under this Agreement
must be in writing.  If any part of this Agreement is not enforceable, the rest
of the Agreement may be enforced.  If Agent (with such consent of any or all of
the Banks as may be required under the Co-Lender Agreement) waives a default,
Agent and the Banks may nevertheless enforce a later default.  No waiver shall
be construed as a continuing waiver.  No waiver shall be implied from Agent's,
or any Bank's, delay in exercising or failure to exercise any right or remedy
against Borrower.  Consent by Agent or the Banks to any act or omission by
Borrower shall not be construed as a consent to any other or subsequent act or
omission or as a waiver of the requirement for Agent's or the Banks' consent to
be obtained in any future or other instance.  Agent and the Banks retain all of
their respective rights and remedies, even if one or more Advances is made after
the occurrence of any default.

     12.14 Publicity; Confidentiality.
           ---------------------------

           (a)  Publicity. Each Bank may refer to the credit facilities provided
                ---------
pursuant to the Loan Documents in its own promotional and advertising materials.
Borrower shall not identify a Bank as a lender, except with such Bank's prior
written consent, provided through Agent in each instance.

           (b)  Confidentiality. Agent, and each of the Banks, understands that
                ---------------
some of the information and documents furnished to it pursuant to this Agreement
or the other Loan Documents may be confidential, and agrees that it will keep
all non-public information, documents and agreements so furnished to it
confidential and will make no disclosure to other Persons of such information or
agreements until it shall have become public, except (i) to the extent required
in connection with matters involving operations under or enforcement or
amendment of the Loan Documents; (ii) in accordance with Agent's or such Bank's
obligations under law or regulations or pursuant to subpoenas or

                                      -46-
<PAGE>

other legal process to make information available to governmental agencies and
examiners or to others; (iii) to any corporate parent or (if such Affiliate is a
financial institution) other Affiliate of Agent or such Bank, solely for
purposes of the administration or enforcement of the Loan, so long as such
parent or other Affiliate agrees to accept such information or agreement subject
to the restrictions provided in this Section 12.15(b); (iv) to any participant
of the Agent or such Lender that agrees to keep such information, documents or
agreement confidential in accordance with the restrictions provided in this
Section 12.15(b); (v) to Agent or to any other Bank and Agent's and such other
Bank's respective counsel and other professional advisors so long as such
Persons are instructed to keep such information confidential in accordance with
the provisions of this Section 12.15(b); (vi) to proposed assignees,
participants that agree to keep such information, documents or agreements
confidential in accordance with the provisions of this Section 12.15(b); or (g)
with the prior written consent of Borrower (which shall not be unreasonably
withheld).

     12.15  Counterparts.
            -------------

            This Agreement may be executed in counterparts each of which, when
executed, shall be deemed an original, and all such counterparts shall
constitute one and the same agreement.

                  [REMAINDER OF PAGE LEFT INTENTIONALLY BLANK]

                                      -47-
<PAGE>

     This Agreement is executed as of the date stated at the top of the first
page.

                              BRE PROPERTIES, INC., a Maryland corporation

                              By: /s/ LeRoy E. Carlson
                                  ----------------------------------------------
                                  LeRoy E. Carlson
                                  Executive Vice President & Chief Financial
                                  Officer

                              By: ______________________________________________
                                  Name:
                                  Title:

Address for Notices:          BRE Properties, Inc.
                              44 Montgomery Street, 36th Floor
                              San Francisco, CA 94104
                              Attention:      LeRoy E. Carlson
                              Phone:          (415) 445-6561
                              Fax:            (415) 445-6505

                              BANK OF AMERICA, NATIONAL ASSOCIATION, as a Bank
                              By: /s/ Mark D. Monte
                                  ----------------------------------------------
                                       Mark D. Monte
                              Title:   Managing Director

                              Pro Rata Share: 50%

                              Commitment: $50,000,000

Address for Notices:          Bank of America, National Association
                              Structured Debt Group
                              Loan Administration
                              600 Montgomery Street, 37th Floor
                              San Francisco, CA 94111
                              Attention:      Mark D. Monte
                              Phone:          (415) 913-3463
                              Fax:            (415) 913-3445

                                      -48-
<PAGE>

                                    COMMERZBANK AG, NEW YORK AND
                                    GRAND CAYMAN BRANCHES

                                    By:__________________________________

                                    Name:________________________________

                                    Title:_______________________________

                                    By:__________________________________

                                    Name:________________________________

                                    Title:_______________________________

                                    Pro Rata Share: 50%

                                    Commitment: $50,000,000

Address for Notices:                Commerzbank AG
                                    2 World Financial Center
                                    New York, New York  10281-1050
                                    Attention:  Marcus Perry
                                    Phone:      (212) 266-7646
                                    Fax:        (212) 266-7565

                                      -49-
<PAGE>

                                   EXHIBIT A
                                BORROWING NOTICE

___________________, 2000

Bank of America, National Association
Real Estate Group - Structured Debt Group
600 Montgomery Street, 37th Floor
San Francisco, CA  94111

Attention:  Jennifer Chung

       Re:  Unsecured Line of Credit Loan Agreement dated as of June 1, 2000, as
            amended, among BRE Properties, Inc. (the "Borrower"); Bank of
            America, National Association, in its capacity as Agent ("Agent");
            and the several financial institutions from time to time party
            thereto in their respective capacities as "Banks,"

Dear Ms. Chung:

     Reference is made to the Agreement.  Capitalized terms used in this
Borrowing Notice without definition have the meanings specified in the
Agreement.

     Pursuant to the Agreement, notice is hereby given that Borrower desires
that the Banks make the advance described in attached Schedule 1 (the
"Advance").  Borrower and the undersigned Officer of Borrower hereby certify
that:

     (1) Committed Loan Availability.  The outstanding amount of the Line of
Credit, together with any other amounts required by the Loan Documents to be
charged against the availability of advances under the Line of Credit, shall
not, after giving effect to the making of the Advance, exceed the Committed Loan
Availability;

     (2) Representations and Warranties.  All representations and warranties of
Borrower or any Material Borrower Entity or other Guarantor contained in the
Agreement and the other Loan Documents are true and correct as of the date
hereof and shall be true and correct on the date of the Advance, both before and
after giving effect to the Advance; provided, however, that the representations
and warranties of Borrower set forth in the Agreement regarding financial
statements shall be deemed to be made with respect to the financial statements
most recently delivered to the Bank pursuant to the Agreement;
<PAGE>

     (3) No Event of Default.  No Event of Default exists as of the date hereof
or will result from the making of the Advance or would result after notice or
passage of time or both;

     (4) Use of Proceeds.  The proceeds of the Advance will be used only as
permitted by the Agreement; and

     (5) No Material Adverse Effect.  No event, circumstance or condition, which
could have a Material Adverse Effect on Borrower or any Material Borrower
Entity, has occurred since the date of the Agreement.

     Enclosed are the documents and information, if any, requested by the Bank
with respect to use of proceeds as a condition to this Advance.

                              BRE PROPERTIES, INC.,

                              a Maryland corporation

                              By:____________________________________________
                                 Its:________________________________________

                                      -2-
<PAGE>

                                   Schedule 1
                              to Borrowing Notice

REQUESTED ADVANCE

1.  Amount and Nature of Requested Advance:  $________________

2.  Purpose of Advance:_______________________________________
     _________________________________________________________
     _________________________________________________________.

3.  Effective Date of Requested Advance /:  ____________, ____.
<PAGE>

                                   SCHEDULE I

                                Lending Offices
                                ---------------

1.   Bank of America, National Association
     Structured Debt Group
     Loan Administration
     600 Montgomery Street, 37th Floor
     San Francisco, CA 94111
     Attention:  Mark D. Monte
     Phone:  (415) 913-3463
     Fax:    (415) 913-3445

2.   Commerzbank AG
     2 World Financial Center
     New York, New York  10281-1050
     Attention:  Marcus Perry
     Phone:  (212) 266-7646
     Fax:    (212) 266-7565

                                      -2-
<PAGE>

                                   SCHEDULE 1

                                [to be attached]

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00013-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00013-of-00352.parquet"}]]