IDS SHURGARD INCOME GROWTH PARTNERS LP
SC 14D1/A, 1996-08-26
PUBLIC WAREHOUSING & STORAGE
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<PAGE>
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                       SECURITIES AND EXCHANGE COMMISSION
 
                             WASHINGTON, D.C. 20549
 
                            ------------------------
 
                                SCHEDULE 14D-1/A
 
              TENDER OFFER STATEMENT PURSUANT TO SECTION 14(d)(1)
                     of the Securities Exchange Act of 1934
 
                               (AMENDMENT NO. 8)
 
                               ------------------
 
                    IDS/SHURGARD INCOME GROWTH PARTNERS L.P.
 
                           (Name of Subject Company)
 
                            ------------------------
 
                         SHURGARD STORAGE CENTERS, INC.
 
                                    (Bidder)
 
                           LIMITED PARTNERSHIP UNITS
                         (Title of Class of Securities)
 
                            ------------------------
 
                                   448933-309
                     (CUSIP Number of Class of Securities)
 
                            ------------------------
 
                             KRISTIN H. STRED, ESQ.
              SENIOR VICE PRESIDENT, SECRETARY AND GENERAL COUNSEL
                         SHURGARD STORAGE CENTERS, INC.
                               1201 THIRD AVENUE
                                   SUITE 2200
                           SEATTLE, WASHINGTON 98101
                                 (206) 624-8100
 
            (Name, Address and Telephone Number of Person Authorized
           to Receive Notices and Communications on Behalf of Bidder)
 
                                   COPIES TO:
 
                             JEFFERY T. PERO, ESQ.
                            WILLIAM J. CERNIUS, ESQ.
                                LATHAM & WATKINS
                             650 TOWN CENTER DRIVE
                                TWENTIETH FLOOR
                          COSTA MESA, CALIFORNIA 92626
                                 (714) 540-1235
 
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- --------------------------------------------------------------------------------
<PAGE>
                                     14D-1
 
<TABLE>
<CAPTION>
    CUSIP NO.
<S>                <C>                                                                                 <C>
            1      NAME OF REPORTING PERSON AND S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
                   SHURGARD STORAGE CENTERS, INC. (91-1603837)
            2      CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP                                    (a) / /
                                                                                                       (b) / /
            3      SEC USE ONLY
            4      SOURCES OF FUNDS
                   BK
            5      CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(e) OR      / /
                   2(f)
            6      CITIZENSHIP OR PLACE OF ORGANIZATION
                   DELAWARE
            7      AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
                   APPROXIMATELY 1,825 UNITS
            8      CHECK IF THE AGGREGATE AMOUNT IN ROW (7) EXCLUDES CERTAIN SHARES                    / /
            9      PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (7) APPROXIMATELY 1.2%
           10      TYPE OF REPORTING PERSON -- CO
</TABLE>
 
<PAGE>
    This  Amendment No. 8 to  the Tender Offer Statement  on Schedule 14D-1 (the
"Schedule 14D-1") relates to a tender offer by Shurgard Storage Centers, Inc., a
Delaware corporation  (the  "Purchaser"), to  purchase  up to  65,000  units  of
limited  partnership  interest  (the  "Units") in  IDS/  Shurgard  Income Growth
Partners, L.P., a  Washington limited partnership  (the "Partnership"), at  $257
per  Unit, net to the seller in cash and without interest, upon the terms of and
subject to the conditions set forth in the Offer to Purchase dated July 2, 1996,
as supplemented by the Purchaser's letter to Unitholders dated July 16, 1996 and
the Supplement to Offer  to Purchase dated August  26, 1996 (the "Supplement  to
Offer to Purchase"), a copy of which is attached hereto as Exhibit 99.19, and in
the  related Letter of Transmittal (which together constitute the "Offer"). This
Amendment No. 8 is being filed by the Purchaser.
 
                                       3
<PAGE>
ITEM 1.  ISSUER AND CLASS OF SECURITY SUBJECT TO THE TRANSACTION.
 
    Item 1 is hereby amended to add the following additional information:
 
    (c)  The information set forth in "MARKET PRICES OF UNITS" of the Supplement
to the Offer to Purchase is incorporated herein by reference.
 
    (d)  The information  set forth in  SCHEDULE VIII of  the Supplement to  the
Offer to Purchase is incorporated herein by reference.
 
ITEM 2.  IDENTITY AND BACKGROUND.
 
    Item 2 is hereby amended to add the following additional information:
 
    (d)   The information set forth in SCHEDULE  I of the Supplement to Offer to
Purchase is incorporated herein by reference.
 
ITEM 3.  PAST CONTACTS, TRANSACTIONS OR NEGOTIATIONS WITH THE SUBJECT COMPANY.
 
    Item 3 is hereby amended to add the following additional information.
 
    (a)-(b)  The information  set forth on  the Cover Page  and in the  SUMMARY,
"SPECIAL  CONSIDERATIONS,"  "BACKGROUND  AND  PURPOSES  OF  THE  TRANSACTION  --
Background of  the  Transaction"  and  "INTERESTS OF  CERTAIN  PERSONS"  of  the
Supplement to Offer to Purchase is incorporated herein by reference.
 
ITEM 5.  PURPOSE OF THE TENDER OFFER AND PLANS OR PROPOSALS OF THE BIDDER.
 
    Item 5 is hereby amended to add the following additional information:
 
    (a)-(g)   The information set forth on the Cover Page and in "BACKGROUND AND
PURPOSES OF  THE  TRANSACTION"  of  the  Supplement  to  Offer  to  Purchase  is
incorporated herein by reference.
 
ITEM 7.  CONTRACTS,  ARRANGEMENTS, UNDERSTANDINGS OR  RELATIONSHIPS WITH RESPECT
         TO THE SUBJECT COMPANY'S SECURITIES.
 
    Item 7 is hereby amended to add the following additional information:
 
    The information set forth in "BACKGROUND AND PURPOSES OF THE TRANSACTION  --
Background of the Transaction" is incorporated herein by reference.
 
ITEM 9.  FINANCIAL STATEMENTS OF CERTAIN BIDDERS.
 
    Item 9 is hereby amended to add the following additional information:
 
    The  information set forth in "BACKGROUND AND PURPOSES OF THE TRANSACTION --
The Purchaser" and SCHEDULE VII  of the Supplement to  the Offer to Purchase  is
incorporated herein by reference.
 
ITEM 10.  ADDITIONAL INFORMATION.
 
    Item 10 is hereby amended to add the following additional information:
 
    (a)   The information set forth in the SUMMARY, "SPECIAL CONSIDERATIONS" and
"INTERESTS OF  CERTAIN  PERSONS" of  the  Supplement  to Offer  to  Purchase  is
incorporated herein by reference.
 
    (e)      The  information   set  forth   in  "THE   OFFER  --   Section  11"
("Miscellaneous") is incorporated herein by reference.
 
    (f)  The information  set forth in  the Supplement to  Offer to Purchase,  a
copy  of which is  attached hereto as  Exhibit 99.19, is  incorporated herein by
reference.
 
                                       4
<PAGE>
ITEM 11.  MATERIAL TO BE FILED AS EXHIBITS.
 
    Item 11 is hereby amended to add the following additional information:
 
<TABLE>
<S>        <C>
99.19      Supplement to Offer to Purchase dated August 26, 1996.
 
99.20      Letter to Unitholders dated August 26, 1996.
 
99.21      Text of Press Release dated August 26, 1996.
</TABLE>
 
    After due inquiry and to the best of my knowledge and belief, I certify that
the information set forth in this statement is true, complete and correct.
 
Dated: August 26, 1996
                                          SHURGARD STORAGE CENTERS, INC.
 
                                          By: /s/ HARRELL L. BECK
 
                                             -----------------------------------
                                              Name: Harrell L. Beck
                                              Title: Senior Vice President,
                                                  Chief Financial Officer and
                                                  Treasurer
 
                                       5

<PAGE>
                                 SUPPLEMENT TO
                           OFFER TO PURCHASE FOR CASH
               UP TO 65,000 UNITS OF LIMITED PARTNERSHIP INTEREST
 
                                       OF
 
                    IDS/SHURGARD INCOME GROWTH PARTNERS L.P.
                                       AT
 
                               $257 NET PER UNIT
 
                                       BY
 
                         SHURGARD STORAGE CENTERS, INC.
 
THE  OFFER, PRORATION PERIOD AND WITHDRAWAL RIGHTS WILL EXPIRE AT 6:00 P.M., NEW
YORK CITY TIME, ON MONDAY, SEPTEMBER 9, 1996, UNLESS EXTENDED.
                            ------------------------
 
    SHURGARD STORAGE CENTERS, INC. (THE "PURCHASER") IS OFFERING TO PURCHASE  UP
TO  65,000 UNITS OF  LIMITED PARTNERSHIP INTEREST  (THE "UNITS") IN IDS/SHURGARD
INCOME GROWTH PARTNERS L.P. (THE "PARTNERSHIP") AT A NET CASH PRICE PER UNIT  OF
$257 (THE "OFFER PRICE"). THIS OFFER IS NOT CONDITIONED UPON A MINIMUM NUMBER OF
UNITS  BEING VALIDLY TENDERED, BUT IT IS SUBJECT TO CERTAIN TERMS AND CONDITIONS
DESCRIBED IN  THE OFFER  TO PURCHASE.  SEE "THE  OFFER" --  SECTION 7  ("CERTAIN
CONDITIONS  OF THE OFFER"). IF MORE THAN  65,000 UNITS (APPROXIMATELY 44% OF THE
OUTSTANDING UNITS) ARE VALIDLY TENDERED,  THE PURCHASER WILL ACCEPT ONLY  65,000
UNITS  AND WILL PURCHASE UNITS FROM TENDERING UNITHOLDERS ON A PRO RATA BASIS AS
DESCRIBED IN THE OFFER TO PURCHASE.
 
    Following the completion of  the purchase of Units  pursuant to this  Offer,
the  remaining Unitholders will be notified  of a special meeting of Unitholders
(the "Special Meeting") to  be held to  consider and vote  upon approval of  the
merger  of the Partnership  with and into  the Purchaser (the  "Merger"). If the
Merger is approved by  the requisite vote of  the Unitholders and certain  other
conditions to the Merger are satisfied or waived, (i) the Partnership will merge
into  the Purchaser and cease to exist as  a separate legal entity and (ii) each
Unit, other than Units held by the Purchaser (including Units purchased in  this
Offer),  which will  be cancelled,  and Units, if  any, held  by Unitholders who
perfect dissenters' rights, will be converted into the right to receive  between
9.26  and 11.55 shares of Class A Common Stock of the Purchaser ("REIT Shares"),
depending upon the  average closing price  of the  REIT Shares on  the New  York
Stock Exchange during a designated period prior to the Special Meeting. All REIT
Shares will be aggregated for each Unitholder and cash will be issued in lieu of
any  fractional REIT Shares. If the average  closing price used to determine the
number of REIT Shares issuable in the Merger is less than $21.50 per REIT Share,
the Purchaser may  provide additional cash  consideration. See "The  Acquisition
Agreement."
 
    In  evaluating the matters described herein, Unitholders should consider the
following, among other factors:
 
    -The general partner of the Partnership, the Purchaser and their  affiliates
     have  significant conflicts of  interest in connection  with this Offer and
     the Merger, and no unaffiliated representatives were appointed to negotiate
     the terms of this Offer  and the Merger on  behalf of the Partnership.  The
     conflicts of interest arise, among other things, from the fact that certain
     representatives  of the general partner are also officers of the Purchaser.
     See "Special Considerations."
 
    -As a result of this  Offer, the Purchaser may hold  the largest, or one  of
     the largest, equity positions in the Partnership, and therefore may be in a
     position  to influence the policies and  affairs of the Partnership and the
     vote on approval of the Merger. See "Special Considerations."
 
    -If the  average price  of REIT  Shares for  the designated  period used  to
     determine  the number of  REIT Shares issuable  in the Merger  is less than
     $22.25 per share  or if  the market price  of REIT  Shares decreases  after
     determination  of the number of REIT Shares  to be issued in the Merger and
     prior to the  issuance of the  REIT Shares,  the market value  of the  REIT
     Shares  received  in the  Merger may  be  lower than  the Offer  Price. See
     "Special Considerations."
 
                                                        (CONTINUED ON NEXT PAGE)
                            ------------------------
 
THIS TRANSACTION HAS  NOT BEEN  APPROVED OR  DISAPPROVED BY  THE SECURITIES  AND
EXCHANGE  COMMISSION (THE "COMMISSION")  NOR HAS THE  COMMISSION PASSED UPON THE
FAIRNESS OR MERITS OF THIS TRANSACTION OR  UPON THE ACCURACY OR ADEQUACY OF  THE
INFORMATION  CONTAINED IN THIS  DOCUMENT. ANY REPRESENTATION  TO THE CONTRARY IS
UNLAWFUL.
 
August 26, 1996
<PAGE>
(CONTINUED FROM PREVIOUS PAGE)
 
    -The Merger, if consummated, may affect  the level of distributions made  to
     Unitholders  who become stockholders  of the Purchaser,  with the potential
     that, depending upon the number of  REIT Shares issued in the Merger,  some
     Unitholders  may receive  following the  Merger smaller  distributions than
     they would have received  if the Merger had  not been consummated and  they
     had remained Unitholders. See "Fairness of the Transaction; Position of the
     General Partner."
 
    -Certain  valuations  of  the  Partnerships  (as  defined  in  the  Offer to
     Purchase) performed by Alex. Brown  were above the aggregate  consideration
     to  be  issued  in the  Transaction  and Additional  Transactions  (each as
     defined  in  the  Offer  to   Purchase)  while  other  valuations  of   the
     Partnerships   that  Alex.   Brown  performed  were   below  the  aggregate
     consideration to be issued in the Transaction and Additional  Transactions.
     In  particular, the valuation of the  Partnerships Alex. Brown performed in
     its analysis of publicly-traded REITs  resulted in a higher valuation  than
     the   consideration  to  be  issued   in  the  Transaction  and  Additional
     Transactions, whereas the valuation of the Partnerships it performed in its
     analysis of selected real estate acquisitions resulted in a lower valuation
     than the  consideration to  be  issued in  the Transaction  and  Additional
     Transactions.  See "Appraisal; Opinions of Financial Advisors -- Opinion of
     the Purchaser's Financial Advisor."
 
    THE GENERAL  PARTNER OF  THE PARTNERSHIP  IS SHURGARD  ASSOCIATES L.P.  (THE
"GENERAL  PARTNER"). THE GENERAL PARTNER HAS  APPROVED THIS OFFER AND THE MERGER
AND HAS DETERMINED THAT THE TERMS OF THIS  OFFER AND THE MERGER ARE FAIR TO  THE
UNITHOLDERS.  THE GENERAL PARTNER  RECOMMENDS THAT THOSE  UNITHOLDERS WHO DESIRE
IMMEDIATE LIQUIDITY TENDER THEIR UNITS PURSUANT TO THIS OFFER AND THAT ALL OTHER
UNITHOLDERS RETAIN THEIR UNITS  AND, INSTEAD, PARTICIPATE  IN THE MERGER.  THERE
CAN BE NO ASSURANCE, HOWEVER, THAT THE MERGER WILL BE CONSUMMATED.
 
                            ------------------------
 
                                   IMPORTANT
 
    Any  Unitholder desiring to  tender all or  any portion of  his or her Units
should complete  and sign  the  Letter of  Transmittal  in accordance  with  the
instructions in the Letter of Transmittal, and mail or deliver it with any other
required  documents to the Depositary at the address set forth on the back cover
of the Offer to Purchase.
 
    Questions and requests for assistance or  additional copies of the Offer  to
Purchase,  the Letter of Transmittal and this  Supplement may be directed to the
Information Agent at  its address  and telephone number  set forth  on the  back
cover  of the Offer to Purchase.  Unitholders may also contact brokers, dealers,
commercial banks and trust companies for assistance concerning this Offer.
<PAGE>
                               TABLE OF CONTENTS
 
<TABLE>
<CAPTION>
                                                                                                                PAGE
                                                                                                                -----
<S>                                                                                                          <C>
Introduction...............................................................................................           1
Incorporation of Certain Documents By Reference............................................................           1
Cautionary Statement.......................................................................................           1
Summary....................................................................................................           1
Special Considerations.....................................................................................           2
Background and Purposes of the Transaction.................................................................           4
Fairness of the Transaction; Position of the General Partner...............................................          10
Appraisal; Opinions of Financial Advisors..................................................................          15
Market Prices of Units.....................................................................................          18
Interests of Certain Persons...............................................................................          18
The Offer..................................................................................................          18
</TABLE>
 
<TABLE>
<S>            <C>        <C>
Schedule I        --      Directors and Executive Officers of Shurgard Storage Centers, Inc.,
                          Shurgard General Partner, Inc. and the Individual General Partners of
                          Shurgard Associates L.P.
 
Schedule V        --      Consolidated Financial Statements of IDS/Shurgard Income Growth Partners
                          L.P.
 
Schedule VI       --      Management's Discussion and Analysis of Financial Condition and Results
                          of Operations of the Partnership
 
Schedule VII      --      Pro Forma Consolidated Financial Statements
 
Schedule VIII     --      Partnership Distributions
 
Schedule IX       --      Property Information
</TABLE>
 
                                       i
<PAGE>
                                  INTRODUCTION
 
    The Purchaser hereby amends and supplements the Offer to Purchase dated July
2, 1996, as supplemented by the Purchaser's letter to Unitholders dated July 16,
1996  (the "Offer  to Purchase").  Except as set  forth in  this Supplement, the
Offer continues to  be governed by  the terms  and conditions set  forth in  the
Offer  to Purchase  and the related  Letter of Transmittal,  and the information
contained therein continues to be  important to each Unitholder's decision  with
respect  to the Offer. Accordingly, this  Supplement should be carefully read in
conjunction with the Offer  to Purchase and the  related Letter of  Transmittal,
which  have been previously mailed to Unitholders. Capitalized terms not defined
herein have the meanings set forth in the Offer to Purchase.
 
    Procedures for tendering Units  are set forth in  the Section entitled  "The
Offer"  of the Offer  to Purchase. Tendering Unitholders  should continue to use
the Letter of Transmittal  circulated with the Offer  to Purchase. By  tendering
Units, Unitholders assign to the Purchaser all rights to cash distributions made
subsequent to July 2, 1996 with respect to those Units.
 
    UNITHOLDERS  WHO HAVE VALIDLY TENDERED UNITS AND NOT WITHDRAWN THEIR TENDERS
NEED TAKE NO FURTHER ACTION TO VALIDLY TENDER THOSE UNITS.
 
                INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE
 
    THE FIRST  PARAGRAPH  OF  THE SECTION  ENTITLED  "INCORPORATION  OF  CERTAIN
DOCUMENTS  BY  REFERENCE" IS  HEREBY  AMENDED AND  RESTATED  IN ITS  ENTIRETY AS
FOLLOWS:
 
    The following documents filed with the Commission by the Purchaser (File No.
0-23466) are incorporated by reference in this Offer to Purchase:
 
    (i) the Purchaser's Quarterly  Reports on Form 10-Q  for the quarters  ended
March 31, 1996 and June 30, 1996;
 
    (ii)  the Purchaser's Annual Report on Form 10-K for the year ended December
31, 1995;
 
   (iii)  the  Purchaser's   Proxy  Statement   for  1996   Annual  Meeting   of
Stockholders;
 
   (iv) the description of the Purchaser's Class A Common Stock, par value $.001
per  share, contained in the Purchaser's  Registration Statement on Form 8-A, as
amended, dated April 19, 1995; and
 
    (v) the description of the Preferred Share Purchase Rights contained in  the
Purchaser's  Registration Statement  on Form  8-A, as  amended, dated  April 19,
1995.
 
                              CAUTIONARY STATEMENT
 
    THE SECTION ENTITLED "CAUTIONARY STATEMENT" IS HEREBY DELETED.
 
                                    SUMMARY
 
    THE SECTION ENTITLED "SUMMARY  -- CONFLICTS OF  INTEREST" IS HEREBY  AMENDED
AND RESTATED IN ITS ENTIRETY AS FOLLOWS:
 
CONFLICTS OF INTEREST
 
    The General Partner of the Partnership has substantial conflicts of interest
in  the Transaction  because (i)  Charles K. Barbo,  the Chairman  of the Board,
President and Chief Executive Officer and a stockholder of the Purchaser, is  an
individual  general partner of the General  Partner and the sole shareholder and
director of the corporate general partner of the General Partner, (ii) Arthur W.
Buerk, a stockholder of the Purchaser,  is an individual general partner of  the
General Partner, (iii) certain executive officers of the Purchaser are executive
officers  of the corporate general partner of the General Partner, (iv) pursuant
to the terms  of the  Partnership's Amended  and Restated  Agreement of  Limited
Partnership  (the "Partnership Agreement"), the  General Partner will receive 5%
of the Merger Consideration  in exchange for its  general partner interest  ("GP
Interest") in the Partnership
 
                                       1
<PAGE>
and  (v) the Purchaser is  a limited partner of  the General Partner and manages
the Partnership's  properties  pursuant  to the  Management  Services  Agreement
between the Purchaser and the Partnership (the "Management Services Agreement").
In addition, pursuant to the terms of the Contingent Share Agreement (as defined
in  "Fairness of  the Transaction;  Position of  the General  Partner -- Factors
Considered  by  the  General  Partner  --  Fairness  in  View  of  Conflicts  of
Interest"),  assuming  the REIT  Share Price  is within  the Share  Price Range,
Charles K.  Barbo,  Arthur  W.  Buerk and  certain  executive  officers  of  the
Purchaser will receive REIT Shares in connection with the Merger with a value of
$100,200, $61,000 and $23,400, respectively. See "Background and Purposes of the
Transaction -- Relationships" and "Interests of Certain Persons."
 
    Under  the Partnership Agreement and  related Management Services Agreement,
the Partnership  currently  pays compensation,  fees  and distributions  to  the
General  Partner  and  its  affiliates.  Specifically,  the  General  Partner is
entitled to  receive 5%  of the  Partnership's cash  distributions, profits  and
losses  and the  percentage increases  to 20%  once Unitholders  have received a
specified return  on their  capital contributions  to the  Partnership. For  the
years  ended December 31, 1993, 1994 and 1995  and the six months ended June 30,
1996, the General Partner received distributions of $118,219, $132,846, $149,909
and $75,564, respectively. The General Partner will receive, in exchange for its
general partner  interest in  the Partnership,  5% of  the Merger  Consideration
which, assuming the REIT Share Price is within the Share Price Range, results in
the General Partner receiving REIT Shares with an aggregate value of $2,003,000,
of  which Charles K. Barbo  and Arthur W. Buerk will  be entitled to REIT Shares
with a value of  $202,300 and $198,300, respectively.  As the property  manager,
the  Purchaser  is  entitled  to  receive 6%  of  gross  revenues  received from
operations of the Partnership's  properties, plus a  monthly advertising fee  of
$75  per property, as  well as reimbursement  for certain out-of-pocket expenses
incurred in the  management of  the Partnership's  assets. For  the years  ended
December  31, 1993, 1994  and 1995 and the  six months ended  June 30, 1996, the
Purchaser received property management  and advertising fees totaling  $310,106,
$337,816,  $361,778 and $183,291,  respectively. In addition,  the Purchaser was
reimbursed by  the Partnership  for  certain expenses  it incurred  as  property
manager.  An affiliate of  IPSC received from  the Purchaser a  quarterly fee of
$12,000 for each quarter  commencing July 1,  1994 and ending  June 30, 1996  as
reimbursement   for  expenses  in  connection  with  the  rendering  of  certain
administrative services. The IPSC affiliate will be reimbursed by the  Purchaser
for expenses incurred in connection with the provision of certain administrative
services  with respect  to the  Transaction, which  the IPSC  affiliate does not
expect to exceed  $50,000. See  "Interests of  Certain Persons  -- Payments  for
Administrative Services."
 
    If  the Merger is consummated, all of  the assets of the Partnership will be
acquired by the Purchaser and,  because the Purchaser is self-administered,  the
acquired  assets will be managed  by employees of the  Purchaser and the General
Partner and its affiliates  will receive no  property management or  advertising
fees.  The  General  Partner and  its  affiliates  will be  entitled  to receive
dividends on the REIT Shares they each receive as a result of the Merger on  the
same basis as all other stockholders of the Purchaser.
 
                             SPECIAL CONSIDERATIONS
 
    THE  SECTION ENTITLED "SPECIAL  CONSIDERATIONS -- CONFLICTS  OF INTEREST" IS
HEREBY RESTATED IN ITS ENTIRETY AS FOLLOWS:
 
    CONFLICTS OF INTEREST.   The  General Partner has  substantial conflicts  of
interest  with  respect to  the Transaction  because (i)  Charles K.  Barbo, the
Chairman of the Board, President and  Chief Executive Officer and a  stockholder
of  the Purchaser, is an  individual general partner of  the General Partner and
the sole  shareholder and  director  of the  corporate  general partner  of  the
General  Partner, (ii) Arthur  W. Buerk, a  stockholder of the  Purchaser, is an
individual general  partner  of the  General  Partner, (iii)  certain  executive
officers  of  the  Purchaser are  executive  officers of  the  corporate general
partner of the General Partner, (iv) the General Partner will be entitled to  5%
of  the Merger Consideration pursuant to  the terms of the Partnership Agreement
and (v)  the Purchaser  is a  limited partner  of the  General Partner  and  the
manager   of   the   Partnership's  properties   pursuant   to   the  Management
 
                                       2
<PAGE>
Services Agreement. In addition, pursuant to  the terms of the Contingent  Share
Agreement,  assuming  the REIT  Share  Price is  within  the Share  Price Range,
Charles K.  Barbo,  Arthur  W.  Buerk and  certain  executive  officers  of  the
Purchaser will receive REIT Shares in connection with the Merger with a value of
$100,200,  $61,000 and $23,400, respectively. As general partners of the General
Partner,  Messrs.  Barbo  and  Buerk  control  the  day-to-day  affairs  of  the
Partnership.  See "Interests of Certain Persons." For certain limitations on the
authority of  the general  partners of  the General  Partner to  enter into  the
Acquisition Agreement, see "The Acquisition Agreement -- IPSC Consent."
 
    Under  the Partnership Agreement and  related Management Services Agreement,
the Partnership  currently  pays compensation,  fees  and distributions  to  the
General  Partner  and  its  affiliates.  Specifically,  the  General  Partner is
entitled to  receive 5%  of the  Partnership's cash  distributions, profits  and
losses  and the  percentage increases  to 20%  once Unitholders  have received a
specified return  on their  capital contributions  to the  Partnership. For  the
years  ended December 31, 1993, 1994 and 1995  and the six months ended June 30,
1996, the General Partner received distributions of $118,219, $132,846, $149,909
and $75,564, respectively. The General Partner will receive, in exchange for its
general partner  interest in  the Partnership,  5% of  the Merger  Consideration
which, assuming the REIT Share Price is within the Share Price Range, results in
the General Partner receiving REIT Shares with an aggregate value of $2,003,000,
of  which Charles K. Barbo  and Arthur W. Buerk will  be entitled to REIT Shares
with a value of  $202,300 and $198,300, respectively.  As the property  manager,
the  Purchaser  is  entitled  to  receive 6%  of  gross  revenues  received from
operations of the Partnership's  properties, plus a  monthly advertising fee  of
$75  per property, as  well as reimbursement  for certain out-of-pocket expenses
incurred in the  management of  the Partnership's  assets. For  the years  ended
December  31, 1993, 1994  and 1995 and the  six months ended  June 30, 1996, the
Purchaser received property management  and advertising fees totaling  $310,106,
$337,816,  $361,778 and $183,291,  respectively. In addition,  the Purchaser was
reimbursed by  the Partnership  for  certain expenses  it incurred  as  property
manager.  An affiliate of  IPSC received from  the Purchaser a  quarterly fee of
$12,000 for each quarter  commencing July 1,  1994 and ending  June 30, 1996  as
reimbursement   for  expenses  in  connection  with  the  rendering  of  certain
administrative services. The IPSC affiliate will be reimbursed by the  Purchaser
for expenses incurred in connection with the provision of certain administrative
services,  which  the IPSC  affiliate  does not  expect  to exceed  $50,000. See
"Interests of Certain Persons -- Payments for Administrative Services."
 
    If the Merger is consummated, all of  the assets of the Partnership will  be
acquired  by the Purchaser and, because  the Purchaser is self-administered, the
acquired assets will be  managed by employees of  the Purchaser and the  General
Partner  and its affiliates  will receive no  property management or advertising
fees. The  General  Partner and  its  affiliates  will be  entitled  to  receive
dividends  on the REIT Shares they each receive as a result of the Merger on the
same basis as all other stockholders of the Purchaser.
 
    THE SECTION ENTITLED "SPECIAL CONSIDERATIONS -- INVESTMENT OBJECTIVES OF THE
PURCHASER" IS HEREBY AMENDED AND RESTATED IN ITS ENTIRETY AS FOLLOWS:
 
    INVESTMENT OBJECTIVES OF THE PURCHASER.  The Purchaser is making this  Offer
with a view to further expanding its portfolio of self storage properties. There
is  a conflict between  the desire of the  Purchaser to purchase  Units at a low
price and the desire of the Unitholders to sell their Units at a high price. The
Offer Price was determined  based upon the Net  Asset Value of the  Partnership,
which  Net  Asset Value  was, in  turn, based  primarily upon  the independently
appraised value of the Partnership's real estate portfolio.
 
                                       3
<PAGE>
                   BACKGROUND AND PURPOSES OF THE TRANSACTION
 
    THE SECTION  ENTITLED "BACKGROUND  AND PURPOSES  OF THE  TRANSACTION --  THE
PARTNERSHIP"  IS HEREBY  AMENDED BY  ADDING THE  FOLLOWING PARAGRAPH IMMEDIATELY
AFTER THE THIRD PARAGRAPH OF THAT SECTION:
 
    The General Partner  of the Partnership  is a limited  partnership of  which
Charles  K.  Barbo, Arthur  W.  Buerk and  SGPI  are the  general  partners. The
business  address,  current  principal   occupation  or  employment,   five-year
employment  history and  citizenship of Mr.  Barbo, Mr. Buerk  and the executive
officers and directors  of SGPI are  set forth in  Schedule I to  this Offer  to
Purchase.
 
    THE  SECTION ENTITLED  "BACKGROUND AND  PURPOSES OF  THE TRANSACTION  -- THE
PARTNERSHIP" IS HEREBY AMENDED BY REPLACING THE FIFTH PARAGRAPH AND THE TABLE IN
THAT SECTION WITH THE FOLLOWING:
 
    The following sets forth certain  financial information for the  Partnership
which  is derived from  the historical consolidated  financial statements of the
Partnership. The unaudited financial data for the six months ended June 30, 1995
and  1996  include  all  adjustments  (consisting  only  of  normally  recurring
accruals)  that the Partnership  considers necessary for  a fair presentation of
consolidated operating  results  for  those interim  periods.  Results  for  the
unaudited interim periods are not necessarily indicative of results for the full
year.  This  information should  be read  in  conjunction with  the Consolidated
Financial Statements of the Partnership and Management's Discussion and Analysis
of Financial Condition and Results of Operations of the Partnership included  as
Schedules V and VI, respectively, to this Supplement.
 
<TABLE>
<CAPTION>
                                                                                                   SIX MONTHS ENDED
                                                                    YEAR ENDED DECEMBER 31,            JUNE 30,
                                                                -------------------------------  --------------------
                                                                  1993       1994       1995       1995       1996
                                                                ---------  ---------  ---------  ---------  ---------
                                                                        (IN THOUSANDS, EXCEPT PER UNIT DATA)
<S>                                                             <C>        <C>        <C>        <C>        <C>
OPERATING DATA:
Rental revenue................................................  $   5,463  $   5,996  $   6,465  $   3,143  $   3,278
Interest income...............................................         29         60        107         50         19
Earnings......................................................      1,821      2,224      2,503      1,142        867
Earnings per Unit (1).........................................      11.67      14.25      16.04       7.32       5.56
Distributions to Unitholders..................................      2,246      2,524      2,848      1,413      1,436
Distributions per Unit (1)....................................      15.16      17.03      19.22       9.53       9.69
OTHER DATA:
Cash flows provided by (used by):
  Operating activities........................................  $   3,170  $   3,509  $   3,917  $   1,948  $   2,017
  Investing activities........................................       (111)      (137)       (99)       (10)       (28)
  Financing activities........................................     (2,631)    (2,777)    (5,027)    (1,819)    (1,793)
Funds from operations (2).....................................      2,825      3,233      3,500      1,654      1,759
</TABLE>
 
<TABLE>
<CAPTION>
                                                                                     DECEMBER 31,
                                                                                 --------------------  JUNE 30,
                                                                                   1994       1995       1996
                                                                                 ---------  ---------  ---------
<S>                                                                              <C>        <C>        <C>
BALANCE SHEET DATA:
Total assets...................................................................  $  31,948  $  29,739  $  29,407
Note payable...................................................................      1,451     --         --
Partners' equity...............................................................     27,388     26,892     26,248
</TABLE>
 
- ------------------------
(1)  Earnings per  Unit and  Distributions per  Unit are  based on  earnings and
    distributions, respectively, allocated to Unitholders divided by the  number
    of  Units outstanding during the period (approximately 148,202 Units for all
    periods shown).
 
(2) Funds from operations ("FFO"), as promulgated by the National Association of
    Real Estate Investment Trusts  in its March 1995  White Paper on Funds  from
    Operations, is defined as net
 
                                       4
<PAGE>
    income   (calculated  in  accordance   with  generally  accepted  accounting
    principles ("GAAP")) excluding gains or  losses from debt restructuring  and
    sales   of  real  estate,  plus  depreciation  of  rental  real  estate  and
    amortization of  intangible assets  exclusive of  deferred financing  costs,
    plus  or minus certain  nonrecurring revenue and  expenses. Contributions to
    FFO from  unconsolidated entities  in which  the reporting  entity holds  an
    active  interest  are  to  be  reflected  in  FFO  on  the  same  basis. The
    Partnership believes FFO  is a meaningful  disclosure as industry  investors
    use  FFO as a supplemental measure to compare the operational performance of
    equity REITs. FFO  is not a  substitute for net  cash provided by  operating
    activities  or net income computed in accordance with GAAP, nor should it be
    considered  an  alternative  indication   of  the  Partnership's   operating
    performance or liquidity.
 
    FFO for each of the periods presented is calculated as follows:
 
<TABLE>
<CAPTION>
                                                                               SIX MONTHS ENDED
                                                YEAR ENDED DECEMBER 31,            JUNE 30,
                                            -------------------------------  --------------------
                                              1993       1994       1995       1995       1996
                                            ---------  ---------  ---------  ---------  ---------
                                                               (IN THOUSANDS)
<S>                                         <C>        <C>        <C>        <C>        <C>
Earnings..................................  $   1,821  $   2,224  $   2,503  $   1,142  $     867
Depreciation and amortization.............      1,008      1,013      1,001        514        467
Deferred financing costs..................         (4)        (4)        (4)        (2)    --
Transaction costs.........................     --         --         --         --            425
                                            ---------  ---------  ---------  ---------  ---------
  Funds from operations...................  $   2,825  $   3,233  $   3,500  $   1,654  $   1,759
                                            ---------  ---------  ---------  ---------  ---------
                                            ---------  ---------  ---------  ---------  ---------
</TABLE>
 
    THE  SECTION ENTITLED  "BACKGROUND AND  PURPOSES OF  THE TRANSACTION  -- THE
PURCHASER" IS HEREBY AMENDED BY REPLACING THE FIFTH PARAGRAPH AND TABLE IN  THAT
SECTION WITH THE FOLLOWING:
 
    The  following sets  forth selected  financial information  of the Purchaser
which is derived from  the historical consolidated  financial statements of  the
Purchaser.  Selected unaudited financial data for  the six months ended June 30,
1995 and 1996  include all  adjustments (consisting only  of normally  recurring
accruals)  that the  Purchaser considers  necessary for  a fair  presentation of
consolidated operating  results  for  those interim  periods.  Results  for  the
interim  periods are  not necessarily indicative  of results for  the full year.
This information should be read in conjunction with the Purchaser's consolidated
financial statements and other  financial information incorporated by  reference
in the
 
                                       5
<PAGE>
Offer to Purchase. See "Incorporation by Reference." Certain pro forma financial
information with respect to the Offer, the Additional Offers, the Merger and the
Additional Mergers is set forth in Schedule VII to this Supplement.
 
<TABLE>
<CAPTION>
                                                                                PURCHASER (2)
                                        PREDECESSOR (1)       -------------------------------------------------
                                     ----------------------                              SIX MONTHS ENDED JUNE
                                     YEAR ENDED   JAN. 1 TO     YEAR ENDED DEC. 31,               30,
                                      DEC. 31,    MARCH 1,    -----------------------   -----------------------
                                        1993        1994         1994         1995         1995         1996
                                     ----------   ---------   ----------   ----------   ----------   ----------
                                                       (IN THOUSANDS, EXCEPT PER SHARE DATA)
<S>                                  <C>          <C>         <C>          <C>          <C>          <C>
OPERATING DATA:
Total revenue......................    $72,346     $ 12,368   $66,921      $96,771      $45,475      $51,142
Net income.........................     18,284       34,286    17,821       29,572       11,992       15,114
Net income per common share (3)....      34.11        63.97      1.05         1.43          .66          .65
Dividends declared per common share
 (3)...............................      59.57       732.05      1.02         2.38(4)      1.36(5)       .47(6)
OTHER DATA:
Cash flows provided by (used by):
  Operating activities.............    $35,049     $  5,116   $29,309      $46,113      $20,602      $23,070
  Investing activities.............     (5,582)      62,962      (115)     (86,311)     (60,699)     (31,802)
  Financing activities.............    (30,269)        (589)   99,021       32,719       33,947        6,797
Funds from operations (7)..........     39,657        5,980    29,759       45,788       19,574       25,078
</TABLE>
 
<TABLE>
<CAPTION>
                                                                         DECEMBER 31,              JUNE 30,
                                                                    ----------------------  ----------------------
                                                                       1994        1995        1995        1996
                                                                    ----------  ----------  ----------  ----------
<S>                                                                 <C>         <C>         <C>         <C>
BALANCE SHEET DATA:
Total assets......................................................  $  494,590  $  610,394  $  585,901  $  631,562
Total borrowings..................................................     167,137     142,840     132,391     171,140
</TABLE>
 
- --------------------------
(1)  The Predecessor information reflects the combination of the 17 partnerships
    included in the Consolidation.
 
(2) The Purchaser was inactive from January 1 through March 1, 1994.
 
(3) Predecessor  "per  share"  information is  earnings  and  distributions  per
    original  $1,000 investment.  Distributions for  the period  from January 1,
    1994 to  March  1,  1994  include  the  liquidating  distributions  made  in
    connection with the Consolidation.
 
(4)  Includes the special  dividend of $0.10  declared in November  1995 and the
    dividend of $0.46  per share declared  in December 1995  based on  financial
    results for the quarter ended December 31, 1995.
 
(5)  Includes the dividend of $0.44 per  share declared in January 1995 based on
    financial results for the quarter ended  December 31, 1994, the dividend  of
    $0.46  per share declared in  May 1995 for the  quarter ended March 31, 1995
    and the dividend of $0.46 per share declared in May 1995 based on  financial
    results for the quarter ended June 30, 1995.
 
(6)  A dividend  of $0.47 per  share relating  to the financial  results for the
    quarter ending March 31, 1996 was declared in April 1996.
 
(7) FFO, as promulgated  by the National Association  of Real Estate  Investment
    Trusts in its March 1995 White Paper on Funds from Operations, is defined as
    net  income (calculated in  accordance with GAAP)  excluding gains or losses
    from debt  restructuring and  sales  of real  estate, plus  depreciation  of
    rental  real  estate  and  amortization of  intangible  assets  exclusive of
    deferred  financing  costs.   Contributions  to   FFO  from   unconsolidated
    entitities  in which the reporting entity holds an active interest are to be
    reflected in FFO on the same basis. The Purchaser believes FFO is meaningful
    disclosure as  industry  investors use  FFO  as a  supplemental  measure  to
    compare the operational performance of equity REITs. FFO is not a substitute
    for  net cash  provided by  operating activities  or net  income computed in
    accordance with GAAP, nor should it be considered an alternative  indication
    of the Purchaser's operating performance or liquidity.
 
                                       6
<PAGE>
    FFO for each of the periods presented is calculated as follows:
 
<TABLE>
<CAPTION>
                                                                          PURCHASER
                                                              ----------------------------------
                                          PREDECESSOR
                                     ----------------------   YEAR ENDED DEC.   SIX MONTHS ENDED
                                     YEAR ENDED   JAN. 1 TO         31,             JUNE 30,
                                      DEC. 31,    MARCH 1,    ----------------  ----------------
                                        1993        1994       1994     1995     1995     1996
                                     ----------   ---------   -------  -------  -------  -------
(IN THOUSANDS)
<S>                                  <C>          <C>         <C>      <C>      <C>      <C>
Net income.........................   $18,284      $34,286    $17,821  $29,572  $11,992  $15,114
Depreciation and amortization......    14,017        2,406     11,452   17,559    8,142   10,524
Deferred financing costs...........       (55)          (9)      (694)  (1,120)    (560)    (560)
Nonrecurring items.................     7,411(1)   (30,703)(2)   1,180(3)    (223 (4)   --   --
                                     ----------   ---------   -------  -------  -------  -------
    Funds from operations..........   $39,657      $ 5,980    $29,759  $45,788  $19,574  $25,078
                                     ----------   ---------   -------  -------  -------  -------
                                     ----------   ---------   -------  -------  -------  -------
</TABLE>
 
    ----------------------------------
    (1) Litigation, hostile takeover and consolidation expenses.
 
    (2)  Litigation, hostile takeover and consolidation expenses of $12,180 less
       $48,223 of  gains  in consolidation  plus  incentive management  fees  of
       $5,340.
 
    (3) Extraordinary loss on retirement of debt.
 
    (4) Gain on condemnation.
 
    THE  THIRD PARAGRAPH OF THE SECTION ENTITLED "BACKGROUND AND PURPOSES OF THE
TRANSACTION -- BACKGROUND OF THE TRANSACTION" IS HEREBY AMENDED AND RESTATED  IN
ITS ENTIRETY AS FOLLOWS:
 
    In  the fall of  1994, the General  Partner and the  general partners of the
Other Partnerships (collectively, the "General Partners") began considering  the
termination  of the  Partnership and  the Other  Partnerships (collectively, the
"Partnerships") through an acquisition of the Partnerships by the Purchaser. The
representatives  of  the  General  Partners  who  considered  the  Partnerships'
termination  and the  acquisition of the  Partnerships' assets  by the Purchaser
were also  executive  officers of  the  Purchaser. The  representatives  of  the
General  Partners and the Purchaser recognized that an acquisition might require
the consent of IPSC under the terms of the partnership agreements of the General
Partners. Consequently, on September 22, 1994, a representative of the Purchaser
sent IPSC  a letter  discussing  potential advantages  and disadvantages  of  an
acquisition of the Partnerships by the Purchaser for the appraised values of the
Partnerships,  whereby the  limited partners  of the  Partnerships would receive
either cash or REIT Shares in exchange for their limited partnership  interests.
The  letter presented  preliminary analyses  of the  value of  the Partnership's
properties of $31.8 million to $35.2 million, resulting in a net asset value  of
$30.4  million to $33.5 million and a net  asset value per Unit of $205 to $226.
For purposes of  the letter, net  asset value was  comprised of the  sum of  the
Purchaser's  internal  valuation of  the Partnership's  properties and  the book
value  of  the  Partnership's  non-real  estate  assets  less  the  sum  of  the
Partnership's  liabilities and  estimated transaction  costs. The  analyses were
based upon the Partnership's 1994  budgeted net operating income adjusted  based
upon  the Partnership's actual performance  when compared against budget through
July 1994, capitalization rates ranging from 10.5% to 9.5% and selling costs  of
5%  of  property  value.  The  letter  invited  IPSC  to  contact  the Purchaser
concerning how or if IPSC and the  Purchaser might wish to proceed. At the  time
the  initial  letter  was sent  to  IPSC  in 1994,  the  Purchaser  and Shurgard
Incorporated, the manager of  the Purchaser at that  time, were negotiating  the
terms of the merger of Shurgard Incorporated into the Purchaser (the "Management
Company  Merger") which was completed in March 1995. Although representatives of
the  Purchaser   and   the   Partnerships  had   occasional   discussions   with
representatives  of IPSC concerning the business of the Partnerships during that
period, they  did not  pursue a  potential transaction  due to  the  Purchaser's
representatives' involvement in the Management Company Merger.
 
    THE  SECTION  ENTITLED  "BACKGROUND  AND  PURPOSES  OF  THE  TRANSACTION  --
BACKGROUND OF  THE  TRANSACTION"  IS  HEREBY AMENDED  BY  ADDING  THE  FOLLOWING
PARAGRAPHS IMMEDIATELY AFTER THE FIFTH PARAGRAPH OF THAT SECTION:
 
    The   letter  noted  the   following  benefits  of   a  merger:  Unitholders
participating in the merger would acquire stock in an infinite life entity  with
a larger asset base, greater diversification, larger
 
                                       7
<PAGE>
market  capitalization than all  three Partnerships combined  and the ability to
grow through  increasing cash  flows from  its existing  portfolio, as  well  as
through  new investments; the merger would  permit Unitholders to exchange their
illiquid Units for shares of a publicly traded entity which they could liquidate
at the time of their own choosing;  the merger would permit Unitholders to  take
advantage  of  the  then-current market  for  REIT securities  which  more fully
reflected the underlying net asset value  of REITs (such as the Purchaser)  with
the  ability to grow;  the merger would  permit Unitholders to  benefit from the
increasing strength of the  self-storage industry over  the past several  years;
while  the merger would be a taxable event, the then-current tax liability would
be minimal, but would  increase the longer the  merger was delayed, assuming  no
change  in  other factors;  and  the merger  would  avoid certain  of  the costs
associated with  a liquidation  of the  Partnership's properties,  such as  real
estate broker fees and transfer taxes.
 
    The letter outlined a merger which would contain the following elements: the
ability  of  Unitholders  to exchange  their  Units  for cash  or  stock  of the
Purchaser, based on  the net  asset value of  the Partnership;  net asset  value
would  be determined  based upon an  appraisal of the  Partnership's real estate
assets as  adjusted for  the Partnership's  other assets  and liabilities;  upon
completion  of  the  merger,  the  Partnership  would  make  a  liquidating cash
distribution to partners in  order to reconcile to  the Partnership's net  asset
value;  the number of shares  to be received by  Unitholders would be determined
based upon the  average closing price  of REIT  Shares for the  20 trading  days
preceding  the week prior to the special  meeting of the Unitholders; the merger
would require the  approval of 75%  of Unitholders; any  Unitholder who did  not
vote  or did not specify either cash or stock would receive stock in the merger;
consummation of  the  merger  with  respect to  the  Partnership  would  not  be
dependent   upon  consummation  of  the  mergers   with  respect  to  the  Other
Partnerships; and the solicitation period with respect to the merger would be 30
to 45 days.
 
    The letter presented preliminary analyses of the value of the  Partnership's
properties  of $37.0 million to $38.8 million, resulting in a net asset value of
$36.3 million to $38.2 million and a net  asset value per Unit of $230 to  $245.
For  purposes of  the letter, net  asset value was  comprised of the  sum of the
Purchaser's internal  valuation of  the Partnership's  properties and  the  book
value  of  the  Partnership's  non-real  estate  assets  less  the  sum  of  the
Partnership's liabilities  and estimated  transaction costs.  The analyses  were
based  upon the Partnership's 1995 budgeted  net operating income adjusted based
upon the Partnership's actual performance  when compared against budget  through
June  1995, capitalization  rates of  10.5% to  10% and  Partnership transaction
costs of  1.5%  of  net  asset  value. In  addition,  the  letter  compared  the
distributions  received by  Unitholders for the  first quarter of  1995 with the
estimated dividends that would be received by Unitholders exchanging their Units
for shares based upon the Purchaser's then-current Partnership distribution rate
of $.46 per share, assuming a share price of $23. Based upon these  assumptions,
dividends  would  range  from  5% below  to  5%  above  then-current Partnership
distributions. The letter  also contained an  analysis of the  taxable gain  per
Unit  as  a result  of the  transaction  based upon  the Partnership's  1994 tax
return. The letter also noted that the anticipated total transaction costs would
be from 2% to 3% of net asset value and proposed that the costs be shared by the
Partnerships and the Purchaser.
 
    The letter included  consideration of the  liquidation of the  Partnerships'
assets,  concluding  that it  was  a less  than  optimal time  to  liquidate the
Partnerships' portfolios. This  conclusion was based  upon then-current  general
market  conditions and  performance of the  properties owned and  managed by the
Purchaser. The letter noted the general deterioration of the real estate  market
which  had affected property values and  decreased sales activities, the reduced
sources of traditional  real estate  financing and  the oversupply  in the  real
estate  market caused by overbuilding and  sales of troubled properties acquired
by financial institutions. Although conditions had been improving more recently,
these developments had resulted  in a reduced market  for sale and financing  of
commercial  real estate. The letter noted that, during the same time period, the
financial performance of the properties owned  and managed by the Purchaser  had
improved   and,   assuming  that   development   of  new   facilities   did  not
disproportionately  impact   the  Partnerships,   the  Partnerships'   financial
performance  was anticipated to improve. The  letter noted that the Unitholders'
net proceeds available for reinvestment after
 
                                       8
<PAGE>
liquidation  would  be  significantly  reduced  as  a  result  of  real   estate
commissions and other sales expenses. Based upon these considerations, Mr. Barbo
concluded  that it was  not the appropriate time  to liquidate the Partnerships'
portfolios; however,  a merger  of  the Partnerships  with the  Purchaser  would
provide  Unitholders  with  an opportunity  to  participate in  the  benefits of
publicly traded REITs in general and the Purchaser in particular.
 
    The letter also discussed the benefits  and detriments of a continuation  of
the operation of the Partnership and concluded that, while the Partnerships were
performing  well and  it was anticipated  that distributions and  cash flow from
operations would continue to improve, continuation would not provide Unitholders
with the benefits  of the  merger. In  addition, the  letter noted  that it  was
anticipated  that  the Purchaser's  cash flow  and  funds from  operations would
improve at a faster  rate than the  Partnerships' as a  result of greater  asset
diversification and acquisition and development activities.
 
    THE  FIRST  SENTENCE  OF  THE  TWELFTH  PARAGRAPH  IN  THE  SECTION ENTITLED
"BACKGROUND AND PURPOSES OF THE TRANSACTION -- BACKGROUND OF THE TRANSACTION" IS
HEREBY AMENDED AND RESTATED IN ITS ENTIRETY AS FOLLOWS:
 
    On March 25, 1996, in connection with preliminary discussions relating to  a
potential business transaction which were subsequently terminated, the Purchaser
and  Public Storage,  Inc. ("PS") entered  into a  customary confidentiality and
standstill agreement whereby PS agreed that it would not acquire any interest in
the Purchaser or any of the Purchaser's affiliates (including the  Partnerships)
for  a period of two  years without the Purchaser's  consent (preventing PS from
making a competing tender offer for the units of limited partnership interest in
the Partnerships or proposing an  alternative transaction with the  Partnerships
without the permission of the Purchaser).
 
    THE THIRTEENTH PARAGRAPH IN THE SECTION ENTITLED "BACKGROUND AND PURPOSES OF
THE TRANSACTION -- BACKGROUND OF THE TRANSACTION" IS HEREBY AMENDED AND RESTATED
IN ITS ENTIRETY AS FOLLOWS:
 
    From  late March 1996 through May 1996, representatives of the Purchaser and
the Partnerships discussed the possibility of the Purchaser's acquisition of the
Partnerships. During  this  time,  the  parties  discussed  the  possibility  of
structuring  the acquisition as a cash tender  offer followed by a merger of the
Partnerships into the Purchaser  in which limited  partners of the  Partnerships
would  receive REIT Shares in exchange  for their limited partnership interests.
The parties viewed a two-step transaction (a partial cash tender offer  followed
by  a stock merger) as being more desirable than a one-step cash-election merger
transaction. Completion of a merger would  be subject to a number of  conditions
(including  the approval  of limited  partners of  each of  the Partnerships and
registration of the REIT Shares) that would  not be conditions to a cash  tender
offer.  Thus, the  two-step transaction  would provide  limited partners  of the
Partnerships with an  opportunity to  obtain liquidity  for a  portion of  their
limited  partnership interests more  quickly than waiting  for completion of the
merger. In addition,  the Purchaser  favored a two-step  transaction because  it
believed that such structure might enable it to acquire an ownership position in
the  Partnerships more quickly than  would be the case  in a one-step merger and
would enable the Purchaser to acquire Units that it could then vote in favor  of
a  second-step merger. During the  last week of May  1996, the Special Committee
proposed to the Partnerships that the  Purchaser acquire the Partnerships for  a
price  equal to  each of their  respective net  asset values pursuant  to a cash
tender offer for up to a  designated percentage of outstanding units of  limited
partnership  interest  followed by  a merger  in which  limited partners  of the
Partnerships would receive REIT Shares with a value equal to the respective  per
unit  net asset value of the Partnership. The value attributable to a REIT Share
was proposed to be  the average of the  closing prices for a  REIT Share on  the
NYSE  during  a  designated future  period  (the "Average  Price").  The parties
discussed the  provision  in  each  Partnership's  partnership  agreement  which
prohibits  the  transfer of  any  unit of  limited  partnership interest  if the
proposed transfer would cause  the Partnership to  terminate for federal  income
tax  purposes due to a sale or exchange of  50% or more of the total interest in
the Partnership's capital and profits in a 12 month period. See "Certain Federal
Income Tax Consequences -- No Constructive Termination of the Partnership."  The
parties concluded that
 
                                       9
<PAGE>
they  should set the  percentage of limited partnership  interests that would be
sought in  the  first  step  tender  offer so  that  if  the  offer  were  fully
subscribed,  the number of  limited partnership interests  sold to the Purchaser
would not  result in  a termination  of any  of the  Partnerships and  thus  the
limited   partnership  interests  could  be  transferred  to  the  Purchaser  in
accordance with the terms of the partnership agreements.
 
    THE  FIRST  SENTENCE  OF  THE  FIRST  PARAGRAPH  IN  THE  SECTION   ENTITLED
"BACKGROUND  AND PURPOSES  OF THE TRANSACTION  -- PURPOSES AND  STRUCTURE OF THE
TRANSACTION" IS HEREBY AMENDED AND RESTATED IN ITS ENTIRETY AS FOLLOWS:
 
    This Offer is being made and the Merger will be proposed for approval (i) to
enable the Purchaser to  acquire the entire equity  interest in the  Partnership
and  (ii) to give  Unitholders an opportunity  to (a) liquidate  their Units for
cash subject to the  proration provisions of this  Offer if greater than  65,000
Units  are tendered (see "The Offer" -- Section  1 ("Terms of the Offer") or (b)
continue to own an equity interest  in a portfolio of properties, including  the
Partnership's properties, through an acquisition of REIT Shares.
 
    THE  THIRD  SENTENCE  OF  THE  SECOND  PARAGRAPH  IN  THE  SECTION  ENTITLED
"BACKGROUND AND  PURPOSES  OF THE  TRANSACTION--PURPOSES  AND STRUCTURE  OF  THE
TRANSACTION" IS HEREBY AMENDED AND RESTATED IN ITS ENTIRETY AS FOLLOWS:
 
    Because  the Partnership Agreement prohibits the transfer of any Unit if the
proposed transfer  would cause  the  Partnership to  terminate for  federal  tax
purposes  due to a sale or exchange of 50%  or more of the total interest in the
Partnership's capital and profits in a  12 month period, the maximum  percentage
of  Units sought by the Purchaser in the  Offer was set to prevent a termination
of the Partnership under those circumstances.
 
          FAIRNESS OF THE TRANSACTION; POSITION OF THE GENERAL PARTNER
 
    THE SECTION ENTITLED "FAIRNESS OF  THE TRANSACTION; POSITION OF THE  GENERAL
PARTNER -- RECOMMENDATION OF THE GENERAL PARTNER" IS HEREBY AMENDED AND RESTATED
IN ITS ENTIRETY AS FOLLOWS:
 
RECOMMENDATION OF THE GENERAL PARTNER
 
    Based  upon  its  analysis  of  the  Transaction,  the  General  Partner has
concluded that  the Offer  Price and  the Merger  Consideration constitute  fair
consideration  to Unitholders and that  the terms of this  Offer and the Merger,
when considered as  a whole, are  fair to the  Unitholders. The General  Partner
formed   this   conclusion  notwithstanding   the   fact  that   no  independent
representative was engaged by the General Partner to negotiate the terms of  the
Transaction on behalf of the Unitholders and that the Partnership Agreement does
not  require  a  majority  vote  of  unaffiliated  Unitholders  to  approve  the
Transaction. The factors considered  by the General Partner  in its analysis  of
the  fairness of the Offer and the Merger  are set forth below. Charles K. Barbo
and SGPI, each an affiliate of the Partnership, have adopted the analysis of the
General Partner as set forth in this Offer to Purchase.
 
    The General Partner recommends that  those Unitholders who desire  immediate
liquidity  tender  their  Units  pursuant  to  this  Offer  and  that  all other
Unitholders retain their Units  and, instead, participate  in the Merger.  There
can  be no assurance that  the approval of the Merger  by the holders of greater
than 75% of  the Units  will be  received or that  the other  conditions to  the
Merger  will be satisfied or waived, and that the Merger will be consummated. If
the Merger is not consummated, those  Unitholders who do not tender their  Units
in this Offer will continue to have an economic interest in the Partnership. The
General Partner has significant conflicts of interest in this transaction, which
conflicts  arise, among other things, from the fact that certain representatives
of the  General  Partner  are  also officers  of  the  Purchaser.  See  "Special
Considerations."
 
                                       10
<PAGE>
    THE  THIRD PARAGRAPH OF  THE SECTION ENTITLED  "FAIRNESS OF THE TRANSACTION;
POSITION OF THE GENERAL PARTNER -- FACTORS CONSIDERED BY THE GENERAL PARTNER  --
DETERMINATION OF MERGER CONSIDERATION" IS HEREBY AMENDED BY ADDING THE FOLLOWING
SENTENCE IMMEDIATELY AFTER THE LAST SENTENCE OF THAT PARAGRAPH:
 
    Unitholders  should note that although the  Stanger Fairness Opinions do not
address the fairness of the Merger Consideration if the actual REIT Share  Price
is less than $22.25, the General Partner believes the method for determining the
Merger  Consideration is  fair if  the REIT  Share Price  is between  $22.25 and
$21.50 for the reasons  stated in clause  (iv) of the  previous sentence and  is
fair if the REIT Share Price is less than $21.50 because the General Partner may
withdraw  its recommendation in favor of the Merger or terminate the Acquisition
Agreement if the Purchaser does not agree to pay the Additional Consideration.
 
    THE SECTION ENTITLED "FAIRNESS OF  THE TRANSACTION; POSITION OF THE  GENERAL
PARTNER  -- FACTORS  CONSIDERED BY  THE GENERAL PARTNER  -- FAIRNESS  IN VIEW OF
CONFLICTS OF  INTEREST"  IS HEREBY  AMENDED  AND  RESTATED IN  ITS  ENTIRETY  AS
FOLLOWS:
 
    FAIRNESS  IN VIEW OF CONFLICTS OF INTEREST.   Charles K. Barbo, the Chairman
of the Board,  President and Chief  Executive Officer and  a stockholder of  the
Purchaser,  is an individual general partner of the General Partner and the sole
shareholder and  director  of  the  corporate general  partner  of  the  General
Partner.  Arthur  W. Buerk,  a stockholder  of the  Purchaser, is  an individual
general partner of the General Partner,  and the Purchaser is a limited  partner
of  the  General Partner.  The General  Partner  will receive  5% of  the Merger
Consideration in  exchange  for its  interest  as  the General  Partner  of  the
Partnership. See "Interests of Certain Persons -- General Partner's Interest."
 
    In connection with the merger of Shurgard Incorporated with the Purchaser in
1995,  the Purchaser agreed  to deliver REIT  Shares as additional consideration
for that merger under certain circumstances  upon the liquidation of the  assets
of  certain  partnerships  sponsored  by  Shurgard  Incorporated,  including the
Partnership and the Other Partnerships  (the "Contingent Share Agreement").  The
Purchaser  entered into the Contingent Share Agreement because the Purchaser had
concluded that  it would  be difficult  at the  time of  the Management  Company
Merger   to  value   Shurgard  Incorporated's   interests  in   certain  limited
partnerships (including  the Partnerships).  Accordingly, Shurgard  Incorporated
shareholders did not receive any consideration with respect to such interests at
the  time of the Management Company Merger,  but instead are entitled to receive
additional consideration  at  a future  valuation  date or  when  the  Purchaser
receives  proceeds from the sale of such interests. If any of the Merger and the
Additional Mergers is consummated, certain executive officers and other  members
of  the  Purchaser's  management  will  receive  REIT  Shares  pursuant  to  the
Contingent Share  Agreement. See  "Interests of  Certain Persons  --  Contingent
Share Agreement."
 
    The  General  Partner  did  not engage  independent  representatives  of the
Unitholders to negotiate, review  and approve the terms  of the Transaction  and
the  terms of the Transaction are not  the results of arms' length negotiations.
The  General  Partner   believes  that   its  recommendation   results  from   a
determination  that the Transaction  is more attractive  to Unitholders than any
alternatives considered  by the  General Partner,  and that  this  determination
results  from the  General Partner's  discharge of  its fiduciary  duties to the
Unitholders and is not  affected by the conflicts  of interest described  above.
The  General  Partner has  based its  conclusion regarding  the fairness  of the
Transaction to Unitholders  on the factors  discussed in this  "Fairness of  the
Transaction;  Position  of the  General  Partner" section.  The  General Partner
believes that  the  analysis was  performed  in a  good  faith exercise  of  its
fiduciary duty, unaffected by these conflicts of interest.
 
    THE  SECOND PARAGRAPH OF THE SECTION  ENTITLED "FAIRNESS OF THE TRANSACTION;
POSITION OF THE GENERAL PARTNER -- FACTORS CONSIDERED BY THE GENERAL PARTNER  --
COMPARISON OF CERTAIN BENEFITS AND DETRIMENTS OF ALTERNATIVES TO THE TRANSACTION
- --  LIQUIDATION OF  THE PARTNERSHIP" IS  HEREBY AMENDED BY  ADDING THE FOLLOWING
SENTENCE IMMEDIATELY AFTER THE LAST SENTENCE OF THAT PARAGRAPH:
 
    While Unitholders could purchase REIT Shares in the public market using  the
proceeds  of  liquidation, the  number  of REIT  Shares  they would  be  able to
purchase would be less than the number
 
                                       11
<PAGE>
of REIT Shares they  would receive in the  Merger because the Partnership  would
incur  more expenses in a liquidation than in the Merger and because Unitholders
would typically incur brokerage commissions in connection with their purchase of
the REIT Shares in the public market.
 
    THE  LAST  TWO  PARAGRAPHS  OF   THE  SECTION  ENTITLED  "FAIRNESS  OF   THE
TRANSACTION;  POSITION  OF  THE GENERAL  PARTNER  -- FACTORS  CONSIDERED  BY THE
GENERAL PARTNER -- COMPARISON OF CERTAIN BENEFITS AND DETRIMENTS OF ALTERNATIVES
TO THE TRANSACTION  -- LIQUIDATION OF  THE PARTNERSHIP" ARE  HEREBY AMENDED  AND
RESTATED IN THEIR ENTIRETY AS FOLLOWS:
 
    The  transaction  costs  associated  with  the  Merger  are  expected  to be
significantly less than those  which would be incurred  in a liquidation of  the
Partnership's  assets, primarily  because the Partnership  would incur brokerage
fees and real estate transfer taxes if the properties were liquidated and  would
likely  be  responsible  for 100%  of  those  expenses rather  than  sharing the
transaction costs with the  acquiror as provided  in the Acquisition  Agreement.
See  "The  Acquisition  Agreement --  Fees  and Expenses."  The  General Partner
estimates that the  brokerage fees would  be approximately 2%  of the  appraised
value  of the Partnership's properties (or  approximately $800,000) and that the
transfer taxes would total approximately $160,000. If the Merger is consummated,
the Partnership will effectively dispose of all of its assets and liabilities in
a single transaction, which will minimize  the liquidation costs. If the  assets
of  the Partnership were liquidated over time, not only is it likely that higher
transaction costs would be incurred,  but distributions to the Unitholders  from
the   Partnership's  cash  flow  from  operations   may  be  reduced  since  the
Partnership's fixed costs,  such as general  and administrative expenses,  would
not be proportionately reduced with the liquidation of assets.
 
    The   General  Partner  favors  the  Transaction  over  liquidation  of  the
Partnership's assets  because  this  Offer permits  those  Unitholders  desiring
immediate  liquidity to obtain cash,  while permitting the remaining Unitholders
to participate  in  the  Merger  which, if  consummated,  will  enable  them  to
participate  in acquisition and  development opportunities existing  in the real
estate market through equity ownership in the Purchaser. Unlike the Partnership,
which is not in  a position to take  advantage of external growth  opportunities
since  it  has already  committed its  capital  and is  not authorized  to raise
additional  funds  or  reinvest  net  sale  or  refinancing  proceeds  for   new
investments,  the  Purchaser  not  only may  reinvest  net  sale  or refinancing
proceeds but  also may  raise additional  capital through  the sale  of debt  or
equity  securities,  allowing  the  Purchaser to  take  advantage  of investment
opportunities for acquisition or development that may be available. In addition,
the  estimated   transaction  costs   associated   with  the   Transaction   are
significantly  less than those which  would be incurred in  a liquidation of the
Partnership's assets on a single transaction or multiple transaction basis.
 
    THE SECTION ENTITLED "FAIRNESS OF  THE TRANSACTION; POSITION OF THE  GENERAL
PARTNER  -- FACTORS CONSIDERED  BY THE GENERAL PARTNER  -- COMPARISON OF CERTAIN
BENEFITS AND DETRIMENTS OF  ALTERNATIVES TO THE  TRANSACTION -- CONTINUATION  OF
THE PARTNERSHIP" IS HEREBY AMENDED BY ADDING THE FOLLOWING PARAGRAPH IMMEDIATELY
AFTER THE THIRD PARAGRAPH OF THAT SECTION:
 
    One of the significant differences between the Partnership and the Purchaser
is that the Partnership is a finite life entity and the Purchaser is an infinite
life  entity. Continuing the Partnership  would preserve Unitholders' investment
in a  finite life  entity,  with the  eventual  liquidation of  that  investment
resulting  from  a sale  of  the assets  of  the Partnership.  In  contrast, the
Purchaser does not expect to dispose of its investments within any specific time
periods and, in  any event, plans  to retain  the net sale  proceeds for  future
investments.   Stockholders  are   expected  to  achieve   liquidity  for  their
investments by trading  REIT Shares  in the public  market and  not through  the
liquidation  of the Purchaser's assets. The REIT  Shares may trade at a discount
from, or premium to, the liquidation value of the Purchaser's properties.
 
                                       12
<PAGE>
    THE THIRD  PARAGRAPH AND  TABLE IN  THE SECTION  ENTITLED "FAIRNESS  OF  THE
TRANSACTION;  POSITION  OF  THE  GENERAL PARTNER  --  COMPARISON  OF TRANSACTION
CONSIDERATION TO ALTERNATIVES  -- GENERAL"  ARE HEREBY AMENDED  AND RESTATED  IN
THEIR ENTIRETY AS FOLLOWS:
 
    The estimated values presented in the following table are based upon certain
assumptions  that relate, among other things, to  (i) the REIT Share Price as of
the date of the Merger being within  the Share Price Range, (ii) projections  as
to  the Partnership's future revenues, expenses, cash flow and other significant
financial  matters,  (iii)  the  capitalization  rates  that  will  be  used  by
prospective  buyers when the  Partnership's assets are  liquidated, (iv) selling
costs, (v)  appropriate  discount rates  to  apply  to expected  cash  flows  in
computing the present value of the cash flows and (vi) the manner of sale of the
Partnership's  properties. Actual  results may vary  from those  set forth below
based on  numerous  factors,  including  interest  rate  fluctuations,  tax  law
changes,  supply and demand for self storage facilities, the manner in which the
properties  are  sold  and  changes  in  availability  of  capital  to   finance
acquisitions  of  self  storage properties.  Each  Unit in  the  following table
represents an original investment of $250.
 
<TABLE>
<CAPTION>
                                                                        ESTIMATED LIQUIDATION
                MERGER                                                      VALUE PER UNIT
             CONSIDERATION       SECONDARY          ESTIMATED GOING      ASSUMING PARTNERSHIP
             PER UNIT (1)       MARKET PRICE         CONCERN VALUE         ASSETS SOLD AT:
             -------------      PER UNIT (2)          PER UNIT (3)      ----------------------
OFFER PRICE                 --------------------  --------------------  APPRAISED    NET BOOK
 PER UNIT                     HIGH        LOW       HIGH        LOW     VALUE (4)   VALUE (5)
- -----------                 ---------  ---------  ---------  ---------  ----------  ----------
<S>          <C>            <C>        <C>        <C>        <C>        <C>         <C>
 $  257        $  257       $  198     $  150     $  251     $  235     $  253      $  175
</TABLE>
 
- ------------------------------
(1) Assumes the REIT  Share Price is  within the Share  Price Range. The  Merger
    Consideration is payable in REIT Shares, cash in lieu of any fractional REIT
    Shares  and, in  certain circumstances,  additional cash  consideration. See
    "The Acquisition Agreement -- The Merger."
 
(2) The secondary  market prices  are those reported  to Stanger  for the  first
    calendar quarter of 1996. See "Market Prices of Units."
 
(3)  The going concern  value estimates are  based upon a  number of assumptions
    regarding the  future net  operating income  and cash  distributions of  the
    Partnership  and assume a disposition of the Partnership's assets at the end
    of 2000. See  "-- Going  Concern Value." The  per Unit  going concern  value
    estimates  were calculated based  upon the General  Partner's aggregate high
    and low going  concern value  estimates for Unitholders  of $37,128,461  and
    $34,777,892, respectively.
 
(4)  Estimated Liquidation Value at Appraised  Value is based primarily upon the
    Appraisal and adjustments  for non-real  estate assets  and liabilities  and
    estimated   selling  costs.  See  "--   Liquidation  Value."  The  per  Unit
    liquidation value at Appraised Value estimate was calculated based upon  the
    General  Partner's aggregate  liquidation value at  Appraised Value estimate
    for Unitholders of $37,422,115.
 
(5) Estimated Liquidation Value at  Net Book Value is  computed as of March  31,
    1996 less estimated selling costs. See "-- Liquidation Value." The aggregate
    net  book value  of $25,930,707  represents the  value of  the Partnership's
    equity as of March 31, 1996 allocable to Unitholders computed in  accordance
    with  GAAP,  less  selling  costs equal  to  4%  of the  book  value  of the
    Partnership's real estate assets.
 
    THE SECOND PARAGRAPH OF THE  SECTION ENTITLED "FAIRNESS OF THE  TRANSACTION;
POSITION  OF THE GENERAL  PARTNER -- COMPARISON  OF TRANSACTION CONSIDERATION TO
ALTERNATIVES --  GOING CONCERN  VALUE" IS  HEREBY AMENDED  AND RESTATED  IN  ITS
ENTIRETY AS FOLLOWS:
 
    The  General Partner has presented two  estimates of the going concern value
of the  Partnership on  a  per Unit  basis, which  estimates  are based  on  the
five-year property cash flows beginning in 1996 used by Stanger in preparing the
Appraisal,  adjusted for general and  administrative expenses (which are assumed
to increase at the rate of 3.5% per  year) and to reflect the allocation of  the
Partnership's value among Unitholders and the General Partner in accordance with
the  Partnership  Agreement.  The  1996 beginning  property  cash  flow  used in
performing the going concern value analysis was $3,962,000, and that amount  was
increased   for  purposes  of  the  analysis   by  a  compound  annual  rate  of
approximately 3.0%  over the  projection  period. The  going concern  value  was
established  by computing the present value  of the projected distributions with
respect to  the  Units, discounted  at  the rate  of  13% per  annum  under  the
conservative  scenario and at the rate of 12% per annum under the more favorable
scenario. In determining the going concern value of the Partnership, the General
Partner
 
                                       13
<PAGE>
assumed that  the  Partnership's  non  real estate  assets  and  liabilities  on
December  31, 2000 are the  same as those on December  31, 1995, resulting in an
excess of non real estate assets  over non real estate liabilities of  $444,317.
In  determining  the discount  rates deemed  appropriate  for the  going concern
analysis, the  General Partner  considered, among  other factors,  the rates  of
return  generally  required by  real estate  investors,  and the  discount rates
utilized in the  Appraisal. Under the  conservative scenario, the  Partnership's
assets  are  sold  at  the  end  of  2000  for  an  all-cash  purchase  price of
$43,333,333, which is  sufficient to  yield the buyer  a 10.5%  return based  on
projected  property cash flows  for 2001 of  approximately $4,550,000. Under the
more favorable scenario, it is assumed that the Partnership's assets are sold at
the end  of  2000  for an  all-cash  purchase  price of  $45,500,000,  which  is
sufficient  to yield the buyer  a 10% return based  upon projected property cash
flows in 2001 of approximately $4,550,000.
 
    THE SECTION ENTITLED "FAIRNESS OF  THE TRANSACTION; POSITION OF THE  GENERAL
PARTNER  -- COMPARISON OF TRANSACTION TO ALTERNATIVES -- GOING CONCERN VALUE" IS
HEREBY AMENDED  BY  ADDING THE  FOLLOWING  AFTER  THE THIRD  PARAGRAPH  OF  THAT
SECTION:
 
    Set forth below is a chart showing the calculation of the Partnership's cash
flows  used  to calculate  the going  concern value  based upon  the assumptions
described above.
 
<TABLE>
<CAPTION>
                                             GENERAL AND
                            PROPERTY CASH   ADMINISTRATIVE  UNITHOLDERS' SHARE
YEAR                           FLOW(1)         EXPENSES      OF NET CASH FLOW
- --------------------------  --------------  --------------  -------------------
<S>                         <C>             <C>             <C>
1996......................  $    3,962,000  $     (210,100)   $     3,564,305
1997......................       4,036,000        (217,454)         3,627,619
1998......................       4,159,000        (225,064)         3,737,239
1999......................       4,285,000        (232,942)         3,849,455
2000......................       4,416,000        (241,095)         3,966,160
                            --------------  --------------  -------------------
  Total...................  $   20,858,000  $   (1,126,654)   $    18,744,779
                            --------------  --------------  -------------------
                            --------------  --------------  -------------------
</TABLE>
 
- ------------------------------
(1) Includes 70% of the cash flow from the properties owned by SJP II.
 
    The Partnership does  not as  a matter of  course make  public forecasts  or
projections  as to  future performance or  earnings. However,  in performing its
going concern  analysis,  the General  Partner  prepared the  above  projections
relating  to the Partnership's future cash  flows. THE PROJECTIONS WERE PREPARED
SOLELY FOR INTERNAL USE AND NOT WITH  A VIEW TO PUBLIC DISCLOSURE OR  COMPLIANCE
WITH  PUBLISHED  GUIDELINES  OF  THE  COMMISSION  REGARDING  PROJECTIONS  OR THE
GUIDELINES ESTABLISHED BY THE AMERICAN INSTITUTE OF CERTIFIED PUBLIC ACCOUNTANTS
REGARDING PROJECTIONS AND ARE  INCLUDED IN THIS OFFER  TO PURCHASE ONLY  BECAUSE
SUCH  INFORMATION WAS  MADE AVAILABLE TO  STANGER AND ALEX.  BROWN. In addition,
because  the  estimates  and   assumptions  underlying  these  projections   are
inherently  subject to  significant economic  and competitive  uncertainties and
contingencies, which  are beyond  the  Partnership's control,  there can  be  no
assurance that the projections will be realized. Actual results may be higher or
lower  than  those set  forth above.  Deloitte &  Touche LLP,  the Partnership's
independent auditor, has not examined, compiled or otherwise applied  procedures
to the financial projections presented above, and, accordingly, does not express
an opinion or any other form of assurance on the financial projections.
 
    THE  SECTION ENTITLED "FAIRNESS OF THE  TRANSACTION; POSITION OF THE GENERAL
PARTNER -- THE SPECIAL  COMMITTEE -- RECOMMENDATION OF  THE GENERAL PARTNER"  IS
HEREBY AMENDED AND RESTATED IN ITS ENTIRETY AS FOLLOWS:
 
    RECOMMENDATION OF THE GENERAL PARTNER.  The Special Committee considered the
conclusions  as  to fairness  of the  General Partner  and adopted  the analysis
underlying those conclusions for  purposes of reaching  its own conclusion  that
the  Transaction is fair  to Unitholders. See "--  Recommendation of the General
Partner," "-- Factors Considered by the  General Partner" and "-- Comparison  of
 
                                       14
<PAGE>
Transaction  Consideration to Alternatives." The General Partner has significant
conflicts of interest in  this transaction, which  conflicts arise, among  other
things,  from the fact  that certain representatives of  the General Partner are
also officers of the Purchaser. See "Special Considerations."
 
    THE SECTION ENTITLED "FAIRNESS OF  THE TRANSACTION; POSITION OF THE  GENERAL
PARTNER -- THE SPECIAL COMMITTEE -- PREMIUM OVER RECENT MARKET PRICES" IS HEREBY
AMENDED AND RESTATED IN ITS ENTIRETY AS FOLLOWS:
 
    PREMIUM  OVER RECENT  MARKET PRICES.   The Special  Committee considered the
fact that the Offer Price and the Merger Consideration (assuming the REIT  Share
Price  remains within the Share  Price Range) represents a  premium of more than
28% over the highest sales  price in the secondary market  of the Unit known  to
the  General Partner between January 1, 1992 and the end of the first quarter of
1996. See "Market Prices of Units."
 
                   APPRAISAL; OPINIONS OF FINANCIAL ADVISORS
 
    THE FOURTH  PARAGRAPH  OF  THE  SECTION  ENTITLED  "APPRAISAL;  OPINIONS  OF
FINANCIAL  ADVISORS  -- REAL  ESTATE PORTFOLIO  APPRAISAL  BY STANGER  -- INCOME
APPROACH" IS HEREBY AMENDED AND RESTATED IN ITS ENTIRETY TO READ AS FOLLOWS:
 
    Stanger then  capitalized, at  terminal  capitalization rates  ranging  from
10.0%  to 10.50% the estimated net operating  income of each property for the 12
months ending December 31, 2006, to determine the property's residual value. The
residual value was discounted  after deducting appropriate  sales expenses to  a
present  value using the same discount rate applied to the stream of annual cash
flows. The discount rates utilized, ranging  from 12.0% to 12.5%, were based  on
current   acquisition   criteria   among   self   storage   facility  investors,
commercial/industrial property  investors'  target  rates  for  return  and  the
historical  spread in rates of return between real estate and other investments.
Stanger  then  correlated  the  values   resulting  from  each  method   (direct
capitalization  and discounted cash  flow) to arrive at  a final income approach
valuation. The indicated aggregate value of the portfolio of properties based on
the income  approach  valuation  was $40,370,000,  after  adjustment  for  joint
venture interests and any deferred maintenance items.
 
    THE  SECTION  ENTITLED "APPRAISAL;  OPINIONS OF  FINANCIAL ADVISORS  -- REAL
ESTATE PORTFOLIO APPRAISAL BY  STANGER -- SALES  COMPARISON APPROACH" IS  HEREBY
AMENDED AND RESTATED IN ITS ENTIRETY TO READ AS FOLLOWS:
 
    SALES  COMPARISON  APPROACH.   Stanger  compiled transaction  data involving
properties similar  in  type to  the  Partnership's properties  by  interviewing
sources   in  local  markets  to  identify  recent  sales  of  self  storage  or
office/storage  properties,   reviewing   publicly  available   information   on
acquisitions  of  self  storage properties,  reviewing  information  provided by
management, and contacting industry sources. Using this data, Stanger  performed
a  comparable sales analysis based upon price  per square foot. A probable range
of value  per  square  foot  was  estimated  for  each  property  based  on  the
relationship  between observed  sales prices per  square foot  and net operating
income per square foot. Price per square foot as estimated by this analysis  was
multiplied  by  the  rentable  square  footage of  each  property  to  derive an
estimated range of  value. The  indicated aggregate  value of  the portfolio  of
properties  based  on  the  sales  comparison  approach  was  $40,050,000  after
adjustment for joint venture interests and any deferred maintenance items.
 
    Stanger reconciled the estimated values resulting from the sales  comparison
approach  and the  income approach for  each property, and  the resulting values
were summed  to  determine  the  estimated value  of  the  Partnership's  entire
portfolio. Stanger adjusted the value conclusion for joint venture interests and
to  reflect any  deferred maintenance items  associated with  the properties. In
determining  a  final  value  of  the  portfolio  of  properties,  Stanger  also
reconciled the indicated aggregate portfolio values based on the income approach
and    the    sales    comparison    approach.    In    determining    a   final
 
                                       15
<PAGE>
conclusion as to value, the income  approach was given primary consideration  by
Stanger  because properties such as those owned by the Partnership are typically
purchased and sold  based upon  their income characteristics.  Stanger gave  the
sales comparison approach secondary consideration.
 
    THE  SECTION  ENTITLED "APPRAISAL;  OPINIONS OF  FINANCIAL ADVISORS  -- REAL
ESTATE  PORTFOLIO   APPRAISAL   BY   STANGER  --   COMPENSATION   AND   MATERIAL
RELATIONSHIPS"  IS HEREBY AMENDED BY ADDING  THE FOLLOWING IMMEDIATELY AFTER THE
LAST SENTENCE IN THAT PARAGRAPH:
 
The General  Partner  has  adopted  the Appraisal  in  forming  its  conclusions
regarding the fairness of the Transaction to Unitholders.
 
    THE  SECTION ENTITLED "APPRAISAL; OPINIONS OF FINANCIAL ADVISORS -- OPINIONS
OF THE  PARTNERSHIP'S FINANCIAL  ADVISOR  -- APPRAISAL"  IS HEREBY  AMENDED  AND
RESTATED IN ITS ENTIRETY AS FOLLOWS:
 
    APPRAISAL.    In preparing  its opinions,  Stanger performed  an independent
appraisal of the Partnership's portfolio of properties. During the course of the
Appraisal, Stanger  performed site  inspections of  each property  owned by  the
Partnership,  conducted inquiries  into local  market conditions  affecting each
property,  reviewed  historical  and  budgeted  operating  statements  for  each
property,   conducted  interviews  with   Partnership  and  property  management
personnel, reviewed the acquisition criteria in use in the marketplace by  major
self  storage property  investors and  owners and  other real  estate investors,
reviewed information concerning transactions involving self storage  properties,
and  estimated the market value of the  portfolio utilizing the income and sales
comparison approaches  to  value See  "--  Real Estate  Portfolio  Appraisal  by
Stanger." Stanger observed that the Offer Price equals the pro rata interest per
Unit  in the  Appraised Value  as adjusted by  the General  Partner for non-real
estate assets and liabilities of the Partnership, estimated Transaction costs to
be borne by  the Partnership  and the Unitholders'  share of  the resulting  Net
Asset  Value according to  the provisions of  the Partnership Agreement. Stanger
believes that the Net Asset Value  of the Partnership, which is based  primarily
on  the  appraised value  of  the Partnership's  portfolio  of properties,  is a
reasonable basis for determining the consideration offered in the transaction.
 
    THE  THIRD  PARAGRAPH  IN  THE  SECTION  ENTITLED  "APPRAISAL;  OPINIONS  OF
FINANCIAL  ADVISORS -- OPINIONS OF THE PARTNERSHIP'S FINANCIAL ADVISOR -- REVIEW
OF LIQUIDATION  ANALYSIS" IS  HEREBY AMENDED  AND RESTATED  IN ITS  ENTIRETY  AS
FOLLOWS:
 
    Stanger  observed that the Offer Price and the Merger Consideration exceeded
the estimated liquidation value per Unit by approximately $4. The fact that  the
Offer  Price and Merger Consideration exceed  the estimated value which would be
received by Unitholders in a  liquidation of the Partnership supports  Stanger's
conclusion as to the fairness of the Offer Price and the Merger Consideration.
 
    THE  SECOND  PARAGRAPH  IN  THE  SECTION  ENTITLED  "APPRAISAL;  OPINIONS OF
FINANCIAL ADVISORS -- OPINIONS OF THE PARTNERSHIP'S FINANCIAL ADVISOR --  REVIEW
OF  GOING CONCERN ANALYSIS"  IS HEREBY AMENDED  AND RESTATED IN  ITS ENTIRETY AS
FOLLOWS:
 
    Stanger observed that the estimated going concern values resulting from  the
above  analyses ranged from $251 to $235  per Unit compared with the Offer Price
of $257 per Unit.  The fact that  the Offer Price  and the Merger  Consideration
exceed  the estimated value per Unit of continuing to operate the Partnership as
a going concern supports  Stanger's conclusion as to  the fairness of the  Offer
Price and the Merger Consideration.
 
    THE  THIRD  PARAGRAPH  IN  THE  SECTION  ENTITLED  "APPRAISAL;  OPINIONS  OF
FINANCIAL ADVISORS -- OPINIONS OF THE PARTNERSHIP'S FINANCIAL ADVISOR --  REVIEW
OF  TENDER OFFER AND SECONDARY MARKET PRICES"  IS HEREBY AMENDED AND RESTATED IN
ITS ENTIRETY AS FOLLOWS:
 
    Stanger also observed that, based on  prices reported to Stanger by  various
firms  active in  the informal secondary  market for  partnership interests, the
highest selling  price  reported for  Units  in the  informal  secondary  market
between  January 1, 1995 and the  end of the first quarter  of 1996 was $200 per
Unit compared with  the Offer Price  of $257  per Unit. Although  prices in  the
informal
 
                                       16
<PAGE>
secondary  market for  partnership interests generally  do not  reflect the full
value of a  partnership's assets  (due in  part to  the discount  a buyer  would
ascribe to a minority interest), the fact that the Offer, if not followed by the
Merger,  could result in the acquisition by the Purchaser of a minority interest
in the Partnership and that the Offer Price exceeds the selling prices  reported
for  Units in the  informal secondary market, in  a prior tender  offer and in a
prior bulk purchase of Units by  the Purchaser supports Stanger's conclusion  as
to the fairness of the Offer Price.
 
    THE  SECTION ENTITLED "APPRAISAL; OPINIONS OF FINANCIAL ADVISORS -- OPINIONS
OF  THE   PARTNERSHIP'S  FINANCIAL   ADVISOR   --  COMPENSATION   AND   MATERIAL
RELATIONSHIPS"  IS HEREBY AMENDED  BY ADDING THE  FOLLOWING SENTENCE IMMEDIATELY
PRIOR TO THE LAST SENTENCE OF THAT SECTION:
 
The General Partner  has adopted the  Stanger Fairness Opinions  in forming  its
conclusions regarding the fairness of the Transaction to Unitholders.
 
    THE  SIXTH  PARAGRAPH  OF  THE  SECTION  ENTITLED  "APPRAISAL;  OPINIONS  OF
FINANCIAL ADVISORS -- OPINION  OF THE PURCHASER'S  FINANCIAL ADVISOR" IS  HEREBY
AMENDED AND RESTATED IN ITS ENTIRETY TO READ AS FOLLOWS:
 
    In  connection with  the delivery  of the  Alex. Brown  Opinion, Alex. Brown
presented to the Special  Committee a report  summarizing the material  analyses
performed  and the material factors considered by Alex. Brown in connection with
rendering the Alex. Brown Opinion (the "Alex. Brown Report"). The following is a
summary of such material analyses and material factors as described in the Alex.
Brown Report and as presented to the Special Committee.
 
    THE SECTION ENTITLED "APPRAISAL; OPINIONS  OF FINANCIAL ADVISORS --  OPINION
OF THE PURCHASER'S FINANCIAL ADVISOR -- HISTORICAL FINANCIAL POSITION" IS HEREBY
AMENDED AND RESTATED IN ITS ENTIRETY TO READ AS FOLLOWS:
 
    HISTORICAL  FINANCIAL  POSITION.    Alex. Brown  reviewed  and  analyzed for
informational purposes the  historical and  current financial  condition of  the
Purchaser  and  the  Partnerships  which  included:  (i)  an  assessment  of the
Partnerships' recent financial statements; (ii)  an analysis of the  Purchaser's
and  the  Partnerships' revenue,  growth and  operating performance  trends; and
(iii) an assessment of  the Partnerships' leverage, market  share and access  to
markets.  Alex. Brown reviewed that information  solely to provide a context for
its financial analyses and reached no conclusions based upon that information.
 
    THE SECTION ENTITLED "APPRAISAL; OPINIONS  OF FINANCIAL ADVISORS --  OPINION
OF  THE PURCHASER'S FINANCIAL ADVISOR --  HISTORICAL STOCK PRICE PERFORMANCE" IS
HEREBY AMENDED AND RESTATED IN ITS ENTIRETY TO READ AS FOLLOWS:
 
    HISTORICAL STOCK PRICE PERFORMANCE.   Alex. Brown reviewed and analyzed  the
daily closing per share market prices, trading volume, and 20 day moving average
stock  price for  the REIT  Shares, from June  25, 1995  to June  25, 1996. This
information was  presented  to give  the  Special Committee  background  trading
information  over the period  indicated. Alex. Brown  also reviewed and analyzed
information regarding the market prices and trading volume of the  Partnerships'
units,  on a  quarterly basis  from September  1995 to  April 1996.  Alex. Brown
reviewed that information solely to provide a context for its financial analyses
and reached no conclusions based upon that information.
 
    THE SECTION ENTITLED "APPRAISAL; OPINIONS  OF FINANCIAL ADVISORS --  OPINION
OF THE PURCHASER'S FINANCIAL ADVISOR -- REAL ESTATE MARKET AND ECONOMIC FACTORS"
IS HEREBY AMENDED AND RESTATED IN ITS ENTIRETY TO READ AS FOLLOWS:
 
    REAL  ESTATE MARKET AND  ECONOMIC FACTORS.  In  rendering its opinion, Alex.
Brown considered, among other factors, the condition of the U.S. stock  markets,
particularly  in  the real  estate  sector, and  the  current level  of economic
activity. However, Alex. Brown did not reach any independent conclusion from the
consideration of those factors.
 
                                       17
<PAGE>
    THE SECTION ENTITLED "APPRAISAL; OPINION OF FINANCIAL ADVISOR -- OPINION  OF
THE  PURCHASER'S  FINANCIAL ADVISOR"  IS HEREBY  A MENDED  TO ADD  THE FOLLOWING
SENTENCE IMMEDIATELY PRIOR TO THE SECOND TO LAST PARAGRAPH OF THAT SECTION:
 
    The foregoing  description  of  the  Alex.  Brown  Report  is  qualified  by
reference  to  the  full text  of  such report  which  has been  filed  with the
Commission as an exhibit to the Schedule 13E-3 and which is incorporated  herein
by  reference.  Copies of  the Alex.  Brown  Report will  be made  available for
inspection and  copying at  the  principal executive  offices of  the  Purchaser
during  regular business hours  by any interested  Unitholder, or by  his or her
representative who has been so designated  in writing, and may be inspected  and
copied,  and obtained by mail,  from the Commission as  set forth in "Additional
Information."
 
                             MARKET PRICES OF UNITS
 
    THE SECTION ENTITLED "MARKET PRICES OF  UNITS -- VOLUME OF SALES" IS  HEREBY
AMENDED  BY  REPLACING THE  LAST  LINE OF  THE TABLE  IN  THAT SECTION  WITH THE
FOLLOWING:
 
<TABLE>
<CAPTION>
                                                              NO. OF UNITS    % OF TOTAL UNITS        NO. OF
PERIOD                                                         TRANSFERRED       OUTSTANDING       TRANSACTIONS
- -----------------------------------------------------------  ---------------  -----------------  -----------------
<S>                                                          <C>              <C>                <C>
Six months ended June 30, 1996.............................           993             0.670%                28
</TABLE>
 
    THE  SECTION  ENTITLED   "MARKET  PRICES  OF   UNITS  --  SECONDARY   MARKET
INFORMATION"  IS HEREBY SUPPLEMENTED  BY ADDING THE  FOLLOWING IMMEDIATELY AFTER
THE LAST LINE OF THE TABLE IN THAT SECTION:
 
<TABLE>
<CAPTION>
                                                                       TRANSACTION PRICE
                                                                      --------------------    NUMBER OF
REPORTING PERIOD                                                         LOW       HIGH         UNITS
- --------------------------------------------------------------------  ---------  ---------  -------------
<S>                                                                   <C>        <C>        <C>
Quarter 2...........................................................  $  185.00  $  214.00          380
</TABLE>
 
                          INTERESTS OF CERTAIN PERSONS
 
    THE SECTION  ENTITLED "INTERESTS  OF CERTAIN  PERSONS --  GENERAL  PARTNER'S
INTEREST"  IS  HEREBY  AMENDED BY  REPLACING  THE  FIFTH SENTENCE  OF  THE FIRST
PARAGRAPH OF THAT SECTION WITH THE FOLLOWING SENTENCE:
 
    Accordingly, the  General  Partner  has  been limited  to  receiving  5%  of
Partnership cash distributions resulting in the receipt of such distributions by
the  General  Partner of  $118,219, $132,846  and $149,909  for the  years ended
December 31, 1993, 1994 and 1995,  respectively, and $75,564 for the six  months
ended June 30, 1996.
 
    THE  SECTION ENTITLED "INTERESTS  OF CERTAIN PERSONS  -- PROPERTY MANAGEMENT
SERVICES" IS HEREBY SUPPLEMENTED BY REPLACING  THE SECOND SENTENCE OF THE  FIRST
PARAGRAPH OF THAT SECTION WITH THE FOLLOWING SENTENCE:
 
    The  Purchaser (or the Predecessor  under the Management Services Agreement)
received from  the  Partnership in  payment  of these  property  management  and
advertising  fees $310,106, $337,816  and $361,778 for  the years ended December
31, 1993, 1994  and 1995, respectively,  and $183,291 for  the six months  ended
June 30, 1996.
 
                                   THE OFFER
 
    THE  FIRST  PARAGRAPH  OF THE  SECTION  ENTITLED  "THE OFFER"  --  SECTION 7
("CERTAIN CONDITIONS  OF THE  OFFER")  IS HEREBY  AMENDED  AND RESTATED  IN  ITS
ENTIRETY AS FOLLOWS:
 
    7.   CERTAIN CONDITIONS OF THE  OFFER.  Notwithstanding any other provisions
of this Offer and subject to the applicable rules of the Securities and Exchange
Commission, the Purchaser will not be required to accept for purchase any Units,
may postpone the acceptance for purchase of Units tendered and may terminate  or
amend  this Offer  if prior to  the Expiration  Date any of  the following shall
occur or the Purchaser shall have learned of the occurrence of any such events:
 
                                       18
<PAGE>
    THE SECTION ENTITLED  "THE OFFER"-- SECTION  11 ("MISCELLANEOUS") IS  HEREBY
AMENDED  TO  ADD  THE  FOLLOWING  PARAGRAPHS  IMMEDIATELY  FOLLOWING  THE SECOND
PARAGRAPH OF THAT SECTION:
 
    PENDING LITIGATION.  On  July 16, 1996, Irving  and Roberta B. Schuman  (the
"Plaintiffs"),  unitholders  of IDS2,  filed  a purported  class  and derivative
action complaint  (the  "Complaint")  on  behalf of  themselves  and  all  other
unitholders  of the Partnerships and derivatively  on behalf of the Partnerships
in the Superior Court of the State of  Washington in and for the County of  King
naming  the Purchaser,  Charles K. Barbo,  Arthur W.  Buerk, Shurgard Associates
L.P., Shurgard  Associates  L.P.  II, Shurgard  Associates  L.P.  III,  Shurgard
General Partner, Inc. and certain other individuals (each of whom has since been
dismissed  as  a  Defendant)  as  Defendants  and  the  Partnerships  as Nominal
Defendants.
 
    In the Complaint,  the Plaintiffs  asserted claims for  breach of  fiduciary
duty,  aiding and abetting  a breach of  fiduciary duty, breach  of contract and
fraud against each of the Defendants for their actions taken in connection  with
the  Transaction.  The Plaintiffs  seek monetary  damages and  equitable relief,
including an order enjoining the  consummation of the Offers, or  alternatively,
an  order requiring  the Defendants  to issue  disclosures to  correct allegedly
false and misleading statements and omissions of material facts in all documents
prepared, filed with the SEC, issued  or disseminated to the unitholders of  the
Partnerships by Defendants in connection with the Offers.
 
    The Defendants intend to vigorously defend the lawsuit.
 
    EXCEPT AS AMENDED OR SUPPLEMENTED HEREBY, ALL PROVISIONS OF THE OFFER REMAIN
UNAFFECTED.
 
                                  SHURGARD STORAGE CENTERS, INC.
 
                                       19
<PAGE>
SCHEDULE I OF THE OFFER TO PURCHASE IS HEREBY AMENDED AND RESTATED IN ITS
ENTIRETY AS FOLLOWS:
 
                                   SCHEDULE I
 
                      DIRECTORS AND EXECUTIVE OFFICERS OF
         SHURGARD STORAGE CENTERS, INC., SHURGARD GENERAL PARTNER, INC.
                     AND THE INDIVIDUAL GENERAL PARTNERS OF
                            SHURGARD ASSOCIATES L.P.
 
    The  following  table  sets  forth  the  name,  business  address, principal
occupation or employment at the present time and during the last five years, and
the  name,  principal  business  and   address  of  any  corporation  or   other
organization  in which such occupation or employment is or was conducted, of the
directors and executive officers  of the Purchaser and  SGPI and the  individual
general  partners of the General Partner, all of whom are citizens of the United
States. Except  as otherwise  noted, the  address of  each such  corporation  or
organization listed and the business address of each person listed is 1201 Third
Avenue,  Suite 2200, Seattle,  Washington 98101. Except  as otherwise noted, the
principal business of  each corporation  or organization listed  is real  estate
investment and each person listed has had the principal occupation or employment
listed for more than the past five years.
 
<TABLE>
<CAPTION>
                                 COMPANY/ADDRESS/
      NAME                    DESCRIPTION OF BUSINESS                        OFFICE AND DATE OF ELECTION
- ----------------  -----------------------------------------------  -----------------------------------------------
<S>               <C>                                              <C>
Charles K. Barbo  Shurgard Storage Centers, Inc.                   Director (1995-present); Chairman of the Board,
                                                                   President and Chief Executive Officer
                                                                   (1995-present)
                  Shurgard General Partner, Inc.                   Chairman of the Board; President (1992-present)
                  Shurgard Incorporated                            Chairman of the Board and Chief Executive
                                                                   Officer (1972-1995)
                  Shurgard Associates L.P.                         General Partner
                  Shurgard Associates L.P. II                      General Partner
                  Shurgard Associates L.P. III                     General Partner
Arthur W. Buerk   Shurgard General Partner, Inc.                   Director (1979-1996); President (1983-1992)
                  Shurgard Associates L.P.                         General Partner
                  Shurgard Associates L.P. II                      General Partner
                  Shurgard Associates L.P. III                     General Partner
                  Northwestern Trust                               Co-Chairman (1995-1996); President (1993-1995)
                  1201 Third Avenue, Suite 2000
                  Seattle, WA 98101
                  (banking)
                  Manus Services Corp.                             President (1992)
                  1130 Rainier
                  Seattle, WA 98140
                  (marketing)
                  Shurgard Incorporated                            President (1983-1991)
Harrell L. Beck   Shurgard Storage Centers, Inc.                   Director (1993-present); President (1993-1995);
                                                                   Chief Financial Officer, Treasurer
                                                                   (1993-present); Senior Vice President
                                                                   (1995-present)
                  Shurgard General Partner, Inc.                   Treasurer (1992-present)
                  Shurgard Incorporated                            Chief Financial Officer (1990-1995)
Michael Rowe      Shurgard Storage Centers, Inc.                   Executive Vice President (1993-present); Chief
                                                                   Operating Officer (March 19, 1996-present)
                  Shurgard General Partner, Inc.                   Vice President (1994-present); Treasurer
                                                                   (1991-1992)
                  Shurgard Incorporated                            Director of Storage Operations (1987-1993)
Kristin H. Stred  Shurgard Storage Centers, Inc.                   Secretary (1993-present); Senior Vice President
                                                                   (1995-present)
                  Shurgard General Partner, Inc.                   Secretary (1993-present)
                  Shurgard Incorporated                            Secretary and General Counsel (1992-1995)
                  The Boeing Company                               Attorney (1991-1992)
                  (aerospace and defense)
</TABLE>
 
                              Schedule I - Page 1
<PAGE>
<TABLE>
<CAPTION>
                                 COMPANY/ADDRESS/
      NAME                    DESCRIPTION OF BUSINESS                        OFFICE AND DATE OF ELECTION
- ----------------  -----------------------------------------------  -----------------------------------------------
<S>               <C>                                              <C>
David K. Grant    Shurgard Storage Centers, Inc.                   Executive Vice President (1993-present);
                                                                   Director of European Operations (May 14,
                                                                   1996-present)
                  Shurgard Incorporated                            Director of Real Estate Investments (1985-1995)
Donald W. Lusk    Shurgard Storage Centers, Inc.                   Director (1994-present)
                  Lusk Consulting Group                            President
                  P.O. Box 3235
                  Redmond, WA 98087
                  (General management consulting)
Wendell J. Smith  Shurgard Storage Centers, Inc.                   Director (1994-present)
                  W.J.S. & Associates                              Founder
                  1301 Gary Way
                  Carmichael, CA 95608
                  (advisory and consulting services)
Howard Johnson    Shurgard Storage Centers, Inc.                   Director (1996-present)
                  Howard Johnson & Company                         Chairman, President and Chief Executive Officer
                  375 Park Avenue
                  New York, NY 10152
                  (independent consulting)
Greenlaw Grupe    Shurgard Storage Centers, Inc.                   Director (1996-present)
                  The Grupe Company                                Chairman and Chief Executive Officer
                  3255 W. March Lane, 4th Floor
                  Stockton, CA 95219
Mark Hall         Shurgard General Partner, Inc.                   Vice President (February, 1996-present)
                  Shurgard Storage Centers, Inc.                   Regional Vice President (1993-present)
                  Shurgard Incorporated                            Regional Vice President (1993-1995)
                                                                   Northwest Regional Manager (1991-1993)
</TABLE>
 
                              Schedule I - Page 2
<PAGE>
SCHEDULE V IS HEREBY AMENDED AND RESTATED IN ITS ENTIRETY AS FOLLOWS:
 
                                     SCHEDULE V
                      CONSOLIDATED FINANCIAL STATEMENTS OF
                    IDS/SHURGARD INCOME GROWTH PARTNERS L.P.
                          CONSOLIDATED BALANCE SHEETS
 
<TABLE>
<CAPTION>
                                                                            DECEMBER 31,
                                                                   ------------------------------
                                                                        1994            1995
                                                                   --------------  --------------  JUNE 30, 1996
                                                                                                   --------------
                                                                                                    (UNAUDITED)
<S>                                                                <C>             <C>             <C>
ASSETS:
  Cash and cash equivalents......................................  $    1,877,311  $      668,672  $      865,281
  Storage centers, net...........................................      29,770,641      28,760,097      28,270,167
  Other assets...................................................         280,497         294,954         258,941
  Amortizable assets, less accumulated amortization of
   $1,150,148, $1,154,322 and $1,156,409.........................          19,131          14,957          12,870
                                                                   --------------  --------------  --------------
      Total Assets...............................................  $   31,947,580  $   29,738,680  $   29,407,259
                                                                   --------------  --------------  --------------
                                                                   --------------  --------------  --------------
 
LIABILITIES AND PARTNERS' EQUITY (DEFICIT):
  Liabilities:
    Accounts payable.............................................          59,496         105,669          41,370
    Other accrued expenses.......................................          40,790          44,953         130,913
    Accrued transaction costs....................................                                         318,985
    Due to affiliates............................................          40,208          39,082          41,442
    Unearned rent and tenant deposits............................         172,231         174,935         177,828
    Note payable.................................................       1,451,399        --              --
                                                                   --------------  --------------  --------------
      Total Liabilities..........................................       1,764,124         364,639         710,538
 
  Minority interest in joint partnership.........................       2,795,612       2,481,862       2,448,602
 
  Partners' equity (deficit):
    Limited partners.............................................      27,657,121      27,186,240      26,574,383
    General partner..............................................        (269,277)       (294,061)       (326,264)
                                                                   --------------  --------------  --------------
      Total Partners' Equity.....................................      27,387,844      26,892,179      26,248,119
                                                                   --------------  --------------  --------------
      Total Liabilities and Partners' Equity.....................  $   31,947,580  $   29,738,680  $   29,407,259
                                                                   --------------  --------------  --------------
                                                                   --------------  --------------  --------------
</TABLE>
 
See notes to consolidated financial statements
 
                              Schedule V - Page 1
<PAGE>
                      CONSOLIDATED STATEMENTS OF EARNINGS
 
<TABLE>
<CAPTION>
                                                                                           SIX MONTHS ENDED
                                                  YEAR ENDED DECEMBER 31,                      JUNE 30,
                                        -------------------------------------------  ----------------------------
                                            1993           1994           1995           1995           1996
                                        -------------  -------------  -------------  -------------  -------------
                                                                                             (UNAUDITED)
<S>                                     <C>            <C>            <C>            <C>            <C>
REVENUE:
  Rental..............................  $   5,462,738  $   5,995,824  $   6,465,170  $   3,143,073  $   3,278,117
  Interest income.....................         28,570         60,204        107,234         49,929         19,210
                                        -------------  -------------  -------------  -------------  -------------
    Total Revenue.....................      5,491,308      6,056,028      6,572,404      3,193,002      3,297,327
 
EXPENSES:
  Operating...........................      1,325,571      1,383,594      1,493,285        753,276        756,936
  Property management fees............        327,766        359,655        387,904        188,698        197,126
  Depreciation and amortization.......      1,119,109      1,126,049      1,113,748        570,865        519,579
  Real estate taxes...................        502,219        490,913        465,662        223,883        252,485
  Interest............................         94,915         96,731        130,022         66,449             --
  Transaction costs...................                                                                    425,373
  Administrative......................        172,236        179,596        215,529        128,355        136,376
                                        -------------  -------------  -------------  -------------  -------------
    Total Expenses....................      3,541,816      3,636,538      3,806,150      1,931,526      2,287,875
 
Minority interest in joint partnership
 earnings.............................       (128,767)      (195,781)      (263,750)      (119,048)      (142,240)
                                        -------------  -------------  -------------  -------------  -------------
 
EARNINGS..............................  $   1,820,725  $   2,223,709  $   2,502,504  $   1,142,248  $     867,212
                                        -------------  -------------  -------------  -------------  -------------
                                        -------------  -------------  -------------  -------------  -------------
 
EARNINGS PER UNIT OF LIMITED
 PARTNERSHIP INTEREST.................  $       11.67  $       14.25  $       16.04  $        7.32  $        5.56
                                        -------------  -------------  -------------  -------------  -------------
                                        -------------  -------------  -------------  -------------  -------------
 
DISTRIBUTIONS PER UNIT OF LIMITED
 PARTNERSHIP INTEREST.................  $       15.16  $       17.03  $       19.22  $        9.53  $        9.69
                                        -------------  -------------  -------------  -------------  -------------
                                        -------------  -------------  -------------  -------------  -------------
</TABLE>
 
See notes to consolidated financial statements
 
                              Schedule V - Page 2
<PAGE>
             CONSOLIDATED STATEMENTS OF PARTNERS' EQUITY (DEFICIT)
 
<TABLE>
<CAPTION>
                                                                     LIMITED
                                                                    PARTNERS      GENERAL PARTNER      TOTAL
                                                                 ---------------  ---------------  --------------
<S>                                                              <C>              <C>              <C>
Balance, January 1, 1993.......................................   $  28,585,167    $    (220,433)  $   28,364,734
Distributions..................................................      (2,246,190)        (118,219)      (2,364,409)
Earnings.......................................................       1,729,689           91,036        1,820,725
                                                                 ---------------  ---------------  --------------
 
Balance, December 31, 1993.....................................      28,068,666         (247,616)      27,821,050
Distributions..................................................      (2,524,069)        (132,846)      (2,656,915)
Earnings.......................................................       2,112,524          111,185        2,223,709
                                                                 ---------------  ---------------  --------------
 
Balance, December 31, 1994.....................................      27,657,121         (269,277)      27,387,844
Distributions..................................................      (2,848,260)        (149,909)      (2,998,169)
Earnings.......................................................       2,377,379          125,125        2,502,504
                                                                 ---------------  ---------------  --------------
 
Balance, December 31, 1995.....................................      27,186,240         (294,061)      26,892,179
Distributions (unaudited)......................................      (1,435,708)         (75,564)      (1,511,272)
Earnings (unaudited)...........................................         823,851           43,361          867,212
                                                                 ---------------  ---------------  --------------
Balance, June 30, 1996 (unaudited).............................   $  26,574,383    $    (326,264)  $   26,248,119
                                                                 ---------------  ---------------  --------------
                                                                 ---------------  ---------------  --------------
</TABLE>
 
See notes to consolidated financial statements
 
                              Schedule V - Page 3
<PAGE>
                     CONSOLIDATED STATEMENTS OF CASH FLOWS
 
<TABLE>
<CAPTION>
                                                          YEAR ENDED DECEMBER 31,              SIX MONTHS ENDED JUNE 30,
                                                -------------------------------------------  -----------------------------
                                                    1993           1994           1995           1995            1996
                                                -------------  -------------  -------------  -------------  --------------
                                                                                                      (UNAUDITED)
<S>                                             <C>            <C>            <C>            <C>            <C>
OPERATING ACTIVITIES:
  Earnings....................................  $   1,820,725  $   2,223,709  $   2,502,504  $   1,142,428  $      867,212
    Adjustments to reconcile earnings to net
     cash provided by operating activities:
    Transaction costs.........................                                                                     425,373
    Minority interest in joint partnership
     earnings.................................        128,767        195,781        263,750        119,048         142,240
    Depreciation and amortization.............      1,119,109      1,126,049      1,113,748        570,865         519,579
    Changes in operating accounts:
      Other assets............................         85,209        (62,984)       (14,457)        66,933          36,013
      Accounts payable........................         (3,626)        14,142         46,173        (20,682)        (64,299)
      Other accrued expenses..................         10,837         (5,805)         4,163         76,494          85,960
      Due to affiliates.......................         (4,786)        12,689         (1,126)        (3,821)          2,360
      Unearned rent and tenant deposits.......         13,947          5,395          2,704         (3,722)          2,893
                                                -------------  -------------  -------------  -------------  --------------
Net cash provided by operating activities.....      3,170,182      3,508,976      3,917,459      1,947,543       2,017,331
                                                -------------  -------------  -------------  -------------  --------------
INVESTING ACTIVITIES:
  Proceeds from grant of easements............          7,599
  Improvements to storage centers.............       (118,994)      (136,846)       (99,030)        (9,997)        (27,562)
                                                -------------  -------------  -------------  -------------  --------------
    Net cash used in investing activities.....       (111,395)      (136,846)       (99,030)        (9,997)        (27,562)
                                                -------------  -------------  -------------  -------------  --------------
FINANCING ACTIVITIES:
  Payments on note payable....................        (41,096)       (44,587)    (1,451,399)       (14,553)
  Distributions to partners...................     (2,364,409)    (2,656,915)    (2,998,169)    (1,486,897)     (1,511,272)
  Distributions to minority partners in joint
   partnership................................       (225,000)       (75,000)      (577,500)      (318,000)       (175,500)
  Payment of transaction costs................                                                                    (106,388)
                                                -------------  -------------  -------------  -------------  --------------
    Net cash used in financing activities.....     (2,630,505)    (2,776,502)    (5,027,068)    (1,819,450)     (1,793,160)
                                                -------------  -------------  -------------  -------------  --------------
Increase (decrease) in cash and cash
 equivalents..................................        428,282        595,628     (1,208,639)       118,096         196,609
Cash and cash equivalents at beginning of
 year.........................................        853,401      1,281,683      1,877,311      1,877,311         668,672
                                                -------------  -------------  -------------  -------------  --------------
Cash and cash equivalents at end of year......  $   1,281,683  $   1,877,311  $     668,672  $   1,995,407  $      865,281
                                                -------------  -------------  -------------  -------------  --------------
                                                -------------  -------------  -------------  -------------  --------------
SUPPLEMENTAL DISCLOSURES OF CASH FLOW
 INFORMATION:
  Cash paid during year for interest..........  $      94,915  $      96,731  $     130,022  $      66,449  $           --
                                                -------------  -------------  -------------  -------------  --------------
                                                -------------  -------------  -------------  -------------  --------------
</TABLE>
 
See notes to consolidated financial statements
 
                              Schedule V - Page 4
<PAGE>
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
 
NOTE A -- SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
 
    GENERAL:   IDS/Shurgard  Income Growth  Partners L.P.  (the Partnership) was
organized under the laws of  the State of Washington  on September 29, 1987,  to
serve  as a vehicle for investments in and ownership of a professionally managed
real estate  portfolio  consisting  of self  storage  properties  which  provide
month-to-month  leases  for  business  and personal  use.  The  Partnership will
terminate December 31, 2030, unless terminated  at an earlier date. The  general
partner is Shurgard Associates L.P., a Washington limited partnership.
 
    As  of June 30, 1996, there were approximately 5,520 limited partners in the
Partnership. There  were  approximately  148,202 units  of  limited  partnership
interest outstanding at a contribution of $250 per unit.
 
    CONSOLIDATED  FINANCIAL STATEMENTS:   In 1988, the  Partnership and Shurgard
Income Properties -- Fund 18 ("Shurgard 18"), an affiliated partnership,  formed
a  joint venture,  Shurgard Joint Partners  II ("SJP II"),  which purchased four
self  storage  facilities   located  in  Detroit,   Michigan.  The   Partnership
contributed  70%  of the  funds  needed for  the  organization of  SJP  II, with
Shurgard 18 contributing the remaining 30%.
 
    On March 1, 1994, Shurgard 18 was merged into Shurgard Storage Centers, Inc.
("SSCI")  as  part  of  the  consolidation  of  17  Shurgard-sponsored   limited
partnerships.  As a result of the merger, SSCI succeeded to all of Shurgard 18's
interest in SJP II,  and assumed its obligations  as a partner. The  Partnership
consented  to SSCI's admission as a successor partner in SJP II. SSCI granted to
the Partnership the  right to sell  its interest in  SJP II at  any time in  the
future  to either  SSCI or,  at SSCI's request,  to any  wholly owned subsidiary
thereof, at a price mutually agreeable to the parties or, if no mutual agreement
could be reached, at a price determined through an appraisal process.
 
    The Partnership and  SSCI receive  cash distributions  from SJP  II and  are
allocated  all income, gain,  loss and credit in  proportion to their respective
capital contributions to SJP II.
 
    The  consolidated  financial   statements  include  the   accounts  of   the
Partnership  and SJP II. All material interpartnership transactions and balances
have been eliminated. The minority partner's interests in the joint  partnership
are shown separately on the accompanying consolidated financial statements.
 
    The  preparation  of  financial  statements  in  conformity  with  generally
accepted  accounting  principles  requires  management  to  make  estimates  and
assumptions  that affect the reported amounts of revenue and expenses during the
reporting period. Actual results can differ from those estimates.
 
    The consolidated interim  financial statements included  in this report  are
unaudited.  In the opinion  of the Partnership, all  adjustments necessary for a
fair  presentation  of  such  financial  statements  have  been  included.  Such
adjustments  consisted only of  normal recurring items.  Interim results are not
necessarily indicative of results for a full year.
 
    CASH EQUIVALENTS:  Cash equivalents consist of money market instruments with
original maturities of 90 days or less.
 
    STORAGE CENTERS:  Storage centers, including land, buildings and  equipment,
are  recorded at cost. Depreciation on buildings  and equipment is recorded on a
straight-line basis over their estimated useful lives which range from three  to
thirty years.
 
    AMORTIZABLE   ASSETS:    Amortizable  assets,  which  consist  primarily  of
noncompete covenants and loan  costs, are amortized  over their expected  useful
lives of two to five years.
 
    RENTAL  REVENUE:    Rental revenue  is  recognized as  earned  under accrual
accounting principles.
 
                              Schedule V - Page 5
<PAGE>
    TAXES ON INCOME:   The consolidated  financial statements do  not reflect  a
provision for federal income taxes because such taxes, including a proportionate
interest in any SJP II taxes, are the responsibility of the individual partners.
 
    LITIGATION:   The Partnership has a  policy of accruing for probable losses,
which, if any, could be material to the future financial position or results  of
operations.  As of June 30, 1996, there  are currently no known probable losses;
therefore, no such accruals have been made.
 
    EARNINGS PER UNIT  OF LIMITED PARTNERSHIP  INTEREST:  Earnings  per unit  of
limited  partnership  interest is  based on  earnings  allocated to  the limited
partners divided by the number  of limited partnership units outstanding  during
the  year (148,202 units for each of the three years ended December 31, 1995 and
the six months ended June 30, 1996 and 1995).
 
    DISTRIBUTIONS PER UNIT OF LIMITED  PARTNERSHIP INTEREST:  Distributions  per
unit of limited partnership interest is based on the total amount distributed to
limited  partners divided by the number of limited partnership units outstanding
during the year (148,202 units  for each of the  three years ended December  31,
1995 and the six months ended June 30, 1996 and 1995).
 
    VALUATION  OF LONG LIVED ASSETS:   The Partnership, using its best estimates
based on reasonable and supportable assumptions and projections, reviews storage
centers  and  other  assets  for  impairment  whenever  events  or  changes   in
circumstances  have indicated that the carrying  amounts of its assets might not
be recoverable. Impaired assets are reported at the lower of cost or fair value.
At June 30, 1996, no assets had been written down.
 
    RECLASSIFICATION:  Certain items in the 1993 and 1994 consolidated financial
statements have been reclassified to conform with the current year presentation.
 
NOTE B -- STORAGE CENTERS
 
    Storage centers consist of the following:
 
<TABLE>
<CAPTION>
                                                        DECEMBER 31,
                                               ------------------------------
                                                    1994            1995
                                               --------------  --------------  JUNE 30, 1996
                                                                               --------------
                                                                                (UNAUDITED)
<S>                                            <C>             <C>             <C>
Land.........................................  $    6,429,852  $    6,429,852  $    6,429,852
Buildings....................................      28,390,139      28,463,189      28,490,751
Equipment....................................       1,174,025       1,200,005       1,200,005
                                               --------------  --------------  --------------
                                                   35,994,016      36,093,046      36,120,608
Less accumulated depreciation................      (6,223,375)     (7,332,949)     (7,850,441)
                                               --------------  --------------  --------------
                                               $   29,770,641  $   28,760,097  $   28,270,167
                                               --------------  --------------  --------------
                                               --------------  --------------  --------------
</TABLE>
 
NOTE C -- NOTE PAYABLE
 
    At December 31, 1994,  the Partnership held a  seven-year note payable to  a
commercial  bank bearing interest at  7.75% per annum. On  December 6, 1995, the
Partnership repaid the balance of this note.
 
NOTE D -- TRANSACTIONS WITH AFFILIATES
 
    In connection  with the  management  of both  the  storage centers  and  the
Partnership,  the Partnership has paid or  accrued a monthly property management
fee equal to 6% of  the properties' gross revenue to  SSCI, an affiliate of  the
general  partner. On  March 24,  1995, Shurgard  Incorporated merged  with SSCI.
Prior to the merger date such fees were paid to Shurgard Incorporated.
 
                              Schedule V - Page 6
<PAGE>
                          INDEPENDENT AUDITORS' REPORT
 
General Partner and Limited Partners
IDS/Shurgard Income Growth Partners L.P.
Seattle, Washington
 
    We have audited the accompanying consolidated balance sheets of IDS/Shurgard
Income Growth Partners L.P. and subsidiary as of December 31, 1994 and 1995, and
the related consolidated statements of earnings, partners' equity (deficit), and
cash flows for each of  the three years in the  period ended December 31,  1995.
These   financial  statements  are  the   responsibility  of  the  Partnership's
management. Our  responsibility is  to  express an  opinion on  these  financial
statements based on our audits.
 
    We  conducted  our audits  in  accordance with  generally  accepted auditing
standards. Those standards require that we plan and perform the audit to  obtain
reasonable assurance about whether the financial statements are free of material
misstatement.  An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements. An audit also  includes
assessing  the  accounting principles  used  and significant  estimates  made by
management, as well as evaluating the overall financial statement  presentation.
We believe that our audits provide a reasonable basis for our opinion.
 
    In  our opinion, such  consolidated financial statements  present fairly, in
all material  respects, the  financial position  of IDS/Shurgard  Income  Growth
Partners  L.P. and subsidiary as of December  31, 1994 and 1995, and the results
of their operations  and their cash  flows for each  of the three  years in  the
period  ended December 31, 1995 in conformity with generally accepted accounting
principles.
 
Deloitte & Touche LLP
Seattle, Washington
March 1, 1996
 
                              Schedule V - Page 7
<PAGE>
SCHEDULE VI IS HEREBY AMENDED AND RESTATED IN ITS ENTIRETY AS FOLLOWS:
 
                                  SCHEDULE VI
          MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION
                  AND RESULTS OF OPERATIONS OF THE PARTNERSHIP
 
RESULTS OF OPERATIONS - SIX MONTHS ENDED JUNE 30, 1996 AND 1995
 
    REVENUES:   The Partnership's  rental revenue for the  six months ended June
30, 1996 increased $135,000 compared to  the same period in 1995. Morgan  Falls,
Midlothian  Turnpike, and Warren storage centers contributed the largest revenue
gains for the Partnership  through June 30, 1996.  Earnings from operations  for
the  six months ended June 30, 1996 also increased $137,600 compared to the same
period in 1995.  These increases are  primarily due  to a 5.3%  increase in  the
average  rental rate per square foot and generally stable occupancies throughout
the Partnership at an average  of 91% at June 30,  1996 compared to 92% at  June
30, 1995.
 
    EXPENSES:  Real estate taxes increased $28,600 for the six months ended June
30,  1996 compared to the same period in  1995. The majority of this increase is
due to  tax refunds  received in  the  second quarter  of 1995  as a  result  of
successful  real estate tax  appeals for the Fraser  and Margate storage centers
which lowered the 1995 expense. Depreciation expense declined as certain  assets
became  fully depreciated; this decrease does  not affect the Partnership's cash
flow. Additionally, there was an elimination of interest expense resulting  from
the payoff of the Partnership's bank note in late 1995.
 
RESULTS OF OPERATIONS - YEARS ENDED DECEMBER 31, 1995, 1994 AND 1993
 
    REVENUE:   Partnership performance increased in 1995 and 1994 as a result of
significant increases in revenue  and earnings. Earnings rose  13% from 1994  to
1995  and 22% from 1993 to 1994. Rental revenue also rose $469,000 in 1995 after
a $533,000 increase  in 1994.  The 1995  revenue increase  was due  to a  slight
increase  in average  occupancies and a  7.5% increase in  average rental rates.
Additionally, all  the  SJP II  stores,  in which  the  Partnership owns  a  70%
interest,  had significant revenue  gains, with 1995  averaging 13.7% over 1994.
Revenue gains from 1993 to 1994 were primarily the result of stable  occupancies
and  a 9.5%  increase in average  rental rates. Average  occupancy has increased
slightly, averaging 88% at  December 31, 1993  and 1994 to  89% at December  31,
1995.  The Partnership  seeks to  maximize revenue  by adjusting  rents to match
demand. Store  managers  evaluate their  store's  rental rates,  based  on  unit
demand,  unit availability and competitors' rental rates. The Partnership trains
its store managers in revenue optimization and empowers them to adjust  marginal
rental  rates based on their "on the ground" analysis of demand and availability
at their  particular  store. In  addition,  the use  of  month-to-month  leases,
combined  with customer turnover,  allows rents to be  quickly adjusted to match
current demand in a flexible manner.
 
    EXPENSES:   Operating expenses  increased $110,000  in 1995  and $58,000  in
1994. The majority of the 1995 increase was due to the increased personnel costs
resulting  from additional hours worked by  managers, an increase in landscaping
expense during the  spring and summer  months at the  Canton, Fraser and  Warren
storage  centers, and repairs made to the  air conditioning units at the Margate
storage center.  In 1994,  operating expenses  increased due  to higher  utility
usage  from a  colder than  normal winter in  the South,  additional phone lines
installed for modem communications, and increased repair and maintenance at  the
Livonia and Morgan Falls storage centers due to snow removal and landscaping.
 
    Interest  expense increased $33,000 in 1995  after remaining stable in 1994.
The majority of the change in 1995  reflects the rise in the interest rate  from
7.75% at December 1994 to 9.25% at December 1995.
 
                              Schedule VI - Page 1
<PAGE>
    Real  estate taxes decreased $25,000 in 1995  after an $11,300 drop in 1994.
The 1995 decrease was due to tax refunds received as a result of successful real
estate tax appeals for the Fraser, Margate and Ontario storage centers. The 1994
decrease was  largely due  to  levy decreases  in  the Michigan  districts.  The
Partnership does not expect to be able to continue to decrease real estate taxes
in the future.
 
    Administrative  expenses rose  $36,000 in  1995 after  a slight  increase in
1994. The 1995 increase is primarily due  to the increase in printing costs  for
the Partnership's quarterly and annual reports.
 
LIQUIDITY AND CAPITAL RESOURCES - SIX MONTHS ENDED JUNE 30, 1996 AND 1995
 
    TRANSACTION  COSTS.  On July 1, 1996,  the Partnership entered into a merger
agreement with the Purchaser  and two affiliated  Partnerships whereby: (1)  the
Purchaser  would commence  a cash  tender offer  for up  to 65,000  Units of the
Partnership and (2) following  completion of the  tender offer, the  Partnership
would  seek the  requisite approval  by the limited  partners to  merge into the
Purchaser. Upon consummation of  the merger all  limited partners would  receive
stock in the Purchaser.
 
    In  connection with this  transaction, the Partnership  is expected to incur
approximately $939,800 in costs. As of June 30, 1996, transaction costs totaling
approximately $425,400 have been posted  as expenses on the Partnership's  books
(of which approximately $106,400 has already been paid). In the event the merger
is not consummated, the Partnership will bear certain expenses as defined in the
merger agreement.
 
    Due  to this  transaction, Partnership  distributions have  been temporarily
suspended. Upon completion of the merger, a final cash distribution will be made
from the Partnership in  an amount, if any,  by which the Partnership's  Closing
Net  Asset Value exceeds its Net Asset Value as defined in the merger agreement.
This distribution will be received only  by those who were partners  immediately
prior to the merger.
 
    INVESTING  ACTIVITIES:  Capital  improvements for the  six months ended June
30, 1996 totaled  $27,600 which  was comprised  largely of  ground and  building
improvements  to the Morgan Falls storage center as well as security upgrades to
the Fraser storage center.
 
    DISTRIBUTIONS TO PARTNERS:  Annualized distribution rates were 7.75% for the
six months ended June 30, 1996 and 1995.
 
LIQUIDITY AND CAPITAL RESOURCES - YEARS ENDED DECEMBER 31, 1995, 1994 AND 1993
 
    CASH FROM OPERATIONS:  Cash from operations increased by $338,800 from  1993
to  1994 and $408,500  from 1994 to  1995, reflecting the  increase in earnings.
Management believes that  cash balances and  cash flow from  operations will  be
adequate to support the future operating needs of the Partnership.
 
    INVESTING  ACTIVITIES:   Investments in  storage centers  have been $99,000,
$137,000, and $119,000 during 1995, 1994 and 1993, respectively. The majority of
improvements in 1995 included  building improvements at  the Ontario and  Canton
storage  centers as well as  pavement upgrades at the  Warren and Canton storage
centers. Improvements completed during 1994 were security upgrades at the  South
Military  Highway, Walnut and  Ontario storage centers and  pavement work at the
Canton and Warren storage centers. In  1993, investments were for pavement  work
at  the  Canton  and  Livonia  storage centers  and  security  equipment  at the
Midlothian  Turnpike  storage  center.  Planned  improvements  for  1996   total
approximately  $63,300 and  are expected to  be funded from  operations and cash
reserves.
 
    FINANCING ACTIVITIES:   On  December  6, 1995,  the Partnership  repaid  its
seven-year  note  payable to  a bank  of $1,418,201  with cash  accumulated from
operations. During  1995, 1994  and  1993, the  Partnership had  made  principal
payments  on  this  note of  $33,000,  $45,000, and  $41,000,  respectively. The
Partnership now has no outstanding long-term debt.
 
    DISTRIBUTIONS TO  PARTNERS:   The  average  annual distribution  rates  were
7.69%, 6.81% and 6.06% for 1995, 1994 and 1993, respectively.
 
                              Schedule VI - Page 2
<PAGE>
SCHEDULE VII IS HEREBY AMENDED AND RESTATED IN ITS ENTIRETY AS FOLLOWS:
 
                                  SCHEDULE VII
                  PRO FORMA CONSOLIDATED FINANCIAL STATEMENTS
 
    The  following pro forma consolidated balance sheets as of June 30, 1996 set
forth the effect of the Transaction  and Additional Transactions as if such  had
occurred  on June 30,  1996. The following pro  forma consolidated statements of
income for  the six  months ended  June 30,  1996 set  forth the  effect of  the
Transaction  and Additional Transactions  as if such had  occurred on January 1,
1995. The following  pro forma consolidated  statements of income  for the  year
ended December 31, 1995 set forth the effect of certain material transactions of
the  Purchaser not related to the Transaction or Additional Transactions and the
effect of the Transaction and Additional Transactions as if such had occurred on
January 1, 1995. The Transaction  and Additional Transactions will be  accounted
for  under  the purchase  method of  accounting  for business  combinations. The
purchase price of the Transaction and Additional Transactions will be  allocated
as follows:
 
<TABLE>
<CAPTION>
(IN THOUSANDS)                                                       IDS1       IDS2        IDS3        TOTAL
                                                                   ---------  ---------  ----------  -----------
<S>                                                                <C>        <C>        <C>         <C>
Storage centers, at appraised value..............................  $  40,370  $  30,520  $   50,890  $   121,780
Cash, cash equivalents and other assets..........................      1,004        576         889        2,469
Accounts payable and other liabilities...........................     (1,307)    (1,403)     (1,797)      (4,507)
Notes payable....................................................         --     (2,831)    (10,333)     (13,164)
                                                                   ---------  ---------  ----------  -----------
  Total purchase price...........................................  $  40,067  $  26,862  $   39,649  $   106,578
                                                                   ---------  ---------  ----------  -----------
                                                                   ---------  ---------  ----------  -----------
</TABLE>
 
    These  pro  forma consolidated  financial  statements are  presented  in two
scenarios: (a)  the  purchase  by  the  Purchaser  through  the  Offer  and  the
Additional Offers of 29,640, 23,022 and 23,843 of the outstanding units of IDS1,
IDS2  and  IDS3,  respectively  (representing  approximately  20%  of  the total
outstanding units) and (b) the purchase  by the Purchaser of 65,000, 49,000  and
52,000   of  the  outstanding  units  of   IDS1,  IDS2  and  IDS3,  respectively
(representing the maximum number of units that may be acquired by the  Purchaser
through  the  Offer  and  the Additional  Offers).  The  pro  forma consolidated
financial statements  assume that  all of  the Partnerships  participate in  the
Mergers.
 
    The   pro  forma  consolidated  financial  statements  are  not  necessarily
indicative of  what the  Purchaser's  actual financial  position or  results  of
operations  would have been as of the date  or for the periods indicated, nor do
they purport  to represent  the  Purchaser's financial  position or  results  of
operations  as of or for any future period. The pro forma consolidated financial
statements should be read in conjunction with all financial statements  included
elsewhere herein or incorporated by reference in this Offer to Purchase.
 
                             Schedule VII - Page 1
<PAGE>
                      PRO FORMA CONSOLIDATED BALANCE SHEET
                             20% TENDER ASSUMPTION
                                 JUNE 30, 1996
<TABLE>
<CAPTION>
                                                          PURCHASER
                                PURCHASER    PURCHASER    PRE-MERGER      IDS1         IDS2         IDS3
(IN THOUSANDS)                  HISTORICAL  ADJUSTMENTS (1) PRO FORMA  HISTORICAL   HISTORICAL   HISTORICAL   ADJUSTMENTS (5)
                                ---------   -----------   ----------   ----------   ----------   ----------   -----------
<S>                             <C>         <C>           <C>          <C>          <C>          <C>          <C>
Storage centers, net..........  $549,658      $--          $549,658     $28,270      $24,547      $33,979      $ 37,068
Other real estate
 investments..................    25,127       20,072(2)     45,199       --           --           --          (22,521)
Cash, cash equivalents and
 other assets.................    56,777        1,358(3)     58,135       1,137          650        1,152          (790)
                                ---------   -----------   ----------   ----------   ----------   ----------   -----------
    Total assets..............  $631,562      $21,430      $652,992     $29,407      $25,197      $35,131      $ 13,757
                                ---------   -----------   ----------   ----------   ----------   ----------   -----------
                                ---------   -----------   ----------   ----------   ----------   ----------   -----------
Accounts payable and other
 liabilities..................  $ 57,881       --          $ 57,881     $   710      $   924      $   917      $  1,545
Notes payable.................   132,250       21,430(4)    153,680       --           2,831       10,333        --
                                ---------   -----------   ----------   ----------   ----------   ----------   -----------
    Total liabilities.........   190,131       21,430       211,561         710        3,755       11,250         1,545
                                ---------   -----------   ----------   ----------   ----------   ----------   -----------
Minority interest.............     2,561       --             2,561       2,449        --           --           (2,449)
Stockholders' equity..........   438,870       --           438,870      26,248       21,442       23,881        14,661
                                ---------   -----------   ----------   ----------   ----------   ----------   -----------
    Total liabilities and
     stockholders' equity.....  $631,562      $21,430      $652,992     $29,407      $25,197      $35,131      $ 13,757
                                ---------   -----------   ----------   ----------   ----------   ----------   -----------
                                ---------   -----------   ----------   ----------   ----------   ----------   -----------
 
<CAPTION>
                                 PURCHASER
                                POST-MERGER
(IN THOUSANDS)                   PRO FORMA
                                -----------
<S>                             <C>
Storage centers, net..........   $673,522
Other real estate
 investments..................     22,678
Cash, cash equivalents and
 other assets.................     60,284
                                -----------
    Total assets..............   $756,484
                                -----------
                                -----------
Accounts payable and other
 liabilities..................   $ 61,977
Notes payable.................    166,844
                                -----------
    Total liabilities.........    228,821
                                -----------
Minority interest.............      2,561
Stockholders' equity..........    525,102
                                -----------
    Total liabilities and
     stockholders' equity.....   $756,484
                                -----------
                                -----------
</TABLE>
 
- ----------------------------------
(1)  Purchaser Adjustments  reflect the  purchase of  29,640, 23,022  and 23,843
    Units of IDS1, IDS2 and IDS3, for $257, $222 and $308 per unit, respectively
    ("Tendered Units"), as if such occurred on January 1, 1995.
 
(2) Amount reflects Purchaser's acquisition of the Tendered Units.
 
(3) Amount reflects funds borrowed to  pay the unpaid amount of the  Purchaser's
    estimated costs of $2,300,000 related to the Mergers and the Offers.
 
(4)  Amount reflects the additional debt incurred to finance the purchase of the
    Tendered Units and the Purchaser's estimated transaction costs.
 
(5) Adjustments by Partnerships are as follows:
 
<TABLE>
<CAPTION>
(IN THOUSANDS)                                                       IDS1       IDS2       IDS3     ADJUSTMENTS
- -----------------------------------------------------------------  ---------  ---------  ---------  -----------
<S>                                                                <C>        <C>        <C>        <C>
Storage centers, net.............................................  $  14,184(a) $   5,973 $  16,911  $  37,068(c)
Other real estate investments....................................    (10,066)    (5,111)    (7,344)    (22,521)(d)
Cash, cash equivalents and other assets..........................       (126)      (207)      (457)       (790)(e)
Accounts payable and other liabilities...........................        515        345        685(b)      1,545(f)
Minority interest................................................     (2,449)    --         --          (2,449)(g)
Stockholders' equity.............................................      5,926        310      8,425      14,661(h)
</TABLE>
 
       -----------------------------------------
       (a) Adjustment includes only  70% of the step-up  to market value of  SJP
        II's  storage centers  as the remaining  30% was owned  by the Purchaser
        prior to the Mergers and will continue to be carried at the  Purchaser's
        historical cost.
 
       (b)  Historical amount has been adjusted to include $176,000 of estimated
        costs to complete  the expansion of  Dobson Ranch, the  market value  of
        which was included in the Appraisal.
 
       (c)  Amount reflects  market value of  self storage centers  based on the
        Appraisals.
 
       (d) Historical amounts have been adjusted to eliminate the Tendered Units
        and the Purchaser's 30% interest in SJP II.
 
       (e) Historical  assets have  been reduced  to eliminate  (i)  amortizable
        assets  which  were specifically  excluded from  the calculation  of Net
        Asset Value per the Acquisition Agreement,  and (ii) cash that would  be
        payable  to  Unitholders  at  the time  of  the  Mergers  as liquidating
        distributions of  $113,000, $134,000  and $196,000  for IDS1,  IDS2  and
        IDS3, respectively. The actual amounts of such liquidating distributions
        may  be greater than or  less than pro forma  amounts depending upon the
        actual amount of transaction costs incurred by each Partnership and  the
        Partnerships'  results of  operations prior  to the  consummation of the
        Mergers.
 
       (f)  Historical  amounts   have  been  adjusted   to  include   estimated
        liabilities for unaccrued Partnership transaction costs. See "The Offer"
        -- Section 10 ("Fees and Expenses").
 
       (g)  Amount  reflects elimination  of  minority interest  related  to the
        Purchaser's 30% interest in SJP II.
 
       (h) Amount reflects  step-up to  Net Asset Value  less the  value of  the
        Tendered Units.
 
                             Schedule VII - Page 2
<PAGE>
                 PRO FORMA CONSOLIDATED STATEMENT OF NET INCOME
                             20% TENDER ASSUMPTION
                         SIX MONTHS ENDED JUNE 30, 1996
<TABLE>
<CAPTION>
                                                          PURCHASER
(IN THOUSANDS, EXCEPT SHARE     PURCHASER    PURCHASER    PRE-MERGER     IDS1         IDS2         IDS3
DATA)                           HISTORICAL  ADJUSTMENTS (1) PRO FORMA HISTORICAL   HISTORICAL   HISTORICAL   ADJUSTMENTS (5)
                                ----------  -----------   ----------  ----------   ----------   ----------   -----------
<S>                             <C>         <C>           <C>         <C>          <C>          <C>          <C>
Rental revenue................  $   48,513     $--        $  48,513    $ 3,278      $ 2,255      $ 3,673      $  --
Revenue from other real estate
 investments..................         895       591(2)       1,486      --           --           --              (733)
Property management revenue...       1,734     --             1,734      --           --           --              (673)
                                ----------  -----------   ----------  ----------   ----------   ----------   -----------
    Total revenue.............      51,142       591         51,733      3,278        2,255        3,673         (1,406)
                                ----------  -----------   ----------  ----------   ----------   ----------   -----------
Operating expense.............      14,192     --            14,192        757          506          919              4
Property management fees......      --         --            --            197          135          219           (551)
Depreciation and
 amortization.................      10,399        38(3)      10,437        520          464          667             81
Real estate taxes.............       4,190     --             4,190        252          174          273         --
General and administrative....       2,244     --             2,244        136           94          113            (53)
                                ----------  -----------   ----------  ----------   ----------   ----------   -----------
    Total expenses............      31,025        38         31,063      1,862        1,373        2,191           (519)
                                ----------  -----------   ----------  ----------   ----------   ----------   -----------
Income from operations........      20,117       553         20,670      1,416          882        1,482           (887)
                                ----------  -----------   ----------  ----------   ----------   ----------   -----------
Transaction expenses..........      --         --            --           (425)        (285)        (421)         1,131
Minority interest in income...         (57)    --               (57 )     (142)       --           --               142
Interest and other income.....         302     --               302         18            9           15         --
Interest expense..............      (5,248)     (883)(4)     (6,131 )    --            (139)        (432)             8
                                ----------  -----------   ----------  ----------   ----------   ----------   -----------
    Total other income
     (expense)................      (5,003)     (883)        (5,886 )     (549)        (415)        (838)         1,281
                                ----------  -----------   ----------  ----------   ----------   ----------   -----------
Net income (loss).............  $   15,114     $(330)     $  14,784    $   867      $   467      $   644      $     394
                                ----------  -----------   ----------  ----------   ----------   ----------   -----------
                                ----------  -----------   ----------  ----------   ----------   ----------   -----------
Net income per share..........  $     0.65     $(0.01)    $    0.64
                                ----------  -----------   ----------
                                ----------  -----------   ----------
Weighted average number of
 shares.......................  23,199,023                23,199,023  1,276,768     856,513     1,274,965     3,408,246
                                ----------                ----------  ----------   ----------   ----------   -----------
                                ----------                ----------  ----------   ----------   ----------   -----------
Weighted average number of
 units........................                                         148,202      115,110      119,215        382,527
                                                                      ----------   ----------   ----------   -----------
                                                                      ----------   ----------   ----------   -----------
 
<CAPTION>
                                 PURCHASER
(IN THOUSANDS, EXCEPT SHARE     POST-MERGER
DATA)                            PRO FORMA
                                -----------
<S>                             <C>
Rental revenue................  $   57,719
Revenue from other real estate
 investments..................         753
Property management revenue...       1,061
                                -----------
    Total revenue.............      59,533
                                -----------
Operating expense.............      16,378
Property management fees......      --
Depreciation and
 amortization.................      12,169
Real estate taxes.............       4,889
General and administrative....       2,534
                                -----------
    Total expenses............      35,970
                                -----------
Income from operations........      23,563
                                -----------
Transaction expenses..........      --
Minority interest in income...         (57)
Interest and other income.....         344
Interest expense..............      (6,694)
                                -----------
    Total other income
     (expense)................      (6,407)
                                -----------
Net income (loss).............  $   17,156
                                -----------
                                -----------
Net income per share..........  $     0.64
                                -----------
                                -----------
Weighted average number of
 shares.......................  26,607,269
                                -----------
                                -----------
Weighted average number of
 units........................      --
                                -----------
                                -----------
</TABLE>
 
- ----------------------------------
(1)  Purchaser Adjustments recognize the acquisition of the Tendered Units as if
    such had occurred on January 1, 1995.
 
(2) Amount reflects the Purchaser's  20% interest in the Partnerships'  earnings
    allocated to the Unitholders.
 
(3)  Amounts reflects  amortization of  transaction costs  of $2.3  million on a
    straight-line basis over 30 years.
 
(4) Amount reflects interest at 8.25%  per annum on additional debt incurred  to
    finance the acquisition of the Tendered Units and the transaction costs.
 
                             Schedule VII - Page 3
<PAGE>
(5) Adjustments by Partnership are as follows:
 
<TABLE>
<CAPTION>
(IN THOUSANDS, EXCEPT SHARE DATA)                                IDS1       IDS2       IDS3       TOTAL
- -------------------------------------------------------------  ---------  ---------  ---------  ---------
<S>                                                            <C>        <C>        <C>        <C>
Revenue from other real estate investments...................  $    (388) $    (143) $    (202) $    (733)(a)
Property management revenue..................................       (244)      (168)      (261)      (673)(b)
Operating expense............................................          3          1         --          4(c)
Property management fees.....................................       (197)      (135)      (219)      (551)(d)
Depreciation and amortization................................         75        (37)        43         81(e)
General and administrative...................................        (20)       (14)       (19)       (53)(f)
Transaction expenses.........................................        425        285        421      1,131(g)
Minority interest in income..................................        142         --         --        142(h)
Interest expense.............................................         --          3          5          8(i)
Weighted average number of shares............................  1,276,768    856,513  1,274,965  3,408,246(j)
Weighted average number of units.............................    148,203    115,110    119,215    382,527
- ----------------------------------
(a)   Historical  amounts have been  adjusted to  eliminate the Purchaser's  20% interest  related to the
     Tendered Units and the Purchaser's 30% interest in the earnings of SJP II.
 
(b)  Amount  reflects elimination of  property management fees,  advertising fees (at  $900 per year  per
     storage  center), the Purchaser's interest in the General Partners and administrative reimbursements
     paid to the Purchaser by the Partnerships.
 
(c)  Amount represents elimination of advertising fees paid by the Partnerships to the Purchaser.
 
(d)  Amount reflects elimination of property management fees paid by the Partnerships to the Purchaser.
 
(e)  Amount  reflects the  change in  depreciation of storage  centers. Depreciation  on a  new basis  of
     $97,424  will  be recognized  on  a straight  line  basis over  five  to 30  years.  Amortization of
     amortizable assets has been eliminated as such assets are not included in Net Asset Value.
 
(f)   Amount reflects  elimination  of administrative  reimbursements paid  by  the Partnerships  to  the
     Purchaser.
 
(g)    Amount reflects  elimination of  transaction  expenses as  such costs  have  been included  in the
     calculation of Net Asset Value.
 
(h)  Amount reflects the elimination of the Purchaser's 30% minority interest in the earnings of SJP II.
 
(i)  Amount reflects the refinancing of the debt of the Partnerships at 8.25% per annum.
 
(j)  Weighted average number of shares to be  issued to each Partnership, assuming a $25.00 share  price,
     is calculated as follows:
</TABLE>
 
<TABLE>
<CAPTION>
                                                                  IDS1        IDS2        IDS3
                                                               ----------  ----------  ----------
<S>                                                            <C>         <C>         <C>
Net Asset Value..............................................  $40,066,700 $26,861,846 $39,649,643
Less value of Tendered Units.................................  (7,617,480) (5,110,884) (7,343,644)
Purchaser's interest in General Partner......................    (530,000)   (338,125)   (431,875)
                                                               ----------  ----------  ----------
Consideration allocable to Unitholders participating in the
Merger.......................................................  $31,919,220 $21,412,837 $31,874,124
                                                                 DIVIDED BY   DIVIDED BY   DIVIDED BY
Assumed share price..........................................  25.00       25.00       25.00
                                                               ----------  ----------  ----------
Weighted average number of shares allocable to Unitholders
participating in the Mergers.................................   1,276,768     856,513   1,274,965
                                                               ----------  ----------  ----------
                                                               ----------  ----------  ----------
</TABLE>
 
                             Schedule VII - Page 4
<PAGE>
                 PRO FORMA CONSOLIDATED STATEMENT OF NET INCOME
                             20% TENDER ASSUMPTION
                          YEAR ENDED DECEMBER 31, 1995
<TABLE>
<CAPTION>
                                                          PURCHASER
(IN THOUSANDS, EXCEPT SHARE     PURCHASER    PURCHASER    PRE-MERGER     IDS1         IDS2         IDS3
DATA)                           HISTORICAL  ADJUSTMENTS (1) PRO FORMA HISTORICAL   HISTORICAL   HISTORICAL   ADJUSTMENTS (10)
                                ----------  -----------   ----------  ----------   ----------   ----------   -----------
<S>                             <C>         <C>           <C>         <C>          <C>          <C>          <C>
Rental revenue................  $   92,397   $   1,984    $  94,381    $ 6,465      $ 4,309      $ 7,225      $  --
Revenue from other real estate
 investments..................       1,396       1,111(2)     2,507      --           --           --            (1,375)
Property management revenue...       2,978         802(3)     3,780      --           --           --            (1,424)
                                ----------  -----------   ----------  ----------   ----------   ----------   -----------
    Total revenue.............      96,771       3,897      100,668      6,465        4,309        7,225         (2,799)
                                ----------  -----------   ----------  ----------   ----------   ----------   -----------
Operating expense.............      26,171          23(4)    26,194      1,493          944        1,800             24
Property management fees......      --                                     388          258          433         (1,079)
Depreciation and
 amortization.................      17,410         733(5)    18,143      1,114          919        1,505            (75)
Real estate taxes.............       7,596         131(6)     7,727        466          324          506         --
General and administrative....       4,859         684(7)     5,543        216          159          170           (223)
                                ----------  -----------   ----------  ----------   ----------   ----------   -----------
    Total expenses............      56,036       1,571       57,607      3,677        2,604        4,414         (1,353)
                                ----------  -----------   ----------  ----------   ----------   ----------   -----------
Income from operations........      40,735       2,326       43,061      2,788        1,705        2,811         (1,446)
                                ----------  -----------   ----------  ----------   ----------   ----------   -----------
Minority interest in income...      --          --           --           (264)       --           --               264
Interest and other income.....         885        (368)(8)       517       109           10           35
Interest expense..............     (12,038)         24(9)   (12,014 )     (130)        (254)        (961)           220
                                ----------  -----------   ----------  ----------   ----------   ----------   -----------
    Total other income
     (expense)................     (11,153)       (344)     (11,497 )     (285)        (244)        (926)           484
                                ----------  -----------   ----------  ----------   ----------   ----------   -----------
Net (loss) income.............  $   29,582   $   1,982    $  31,564    $ 2,503      $ 1,461      $ 1,885      $    (962)
                                ----------  -----------   ----------  ----------   ----------   ----------   -----------
                                ----------  -----------   ----------  ----------   ----------   ----------   -----------
Net income per share..........  $     1.43   $    0.79    $    1.36
                                ----------  -----------   ----------
                                ----------  -----------   ----------
Weighted average number of
 shares.......................  20,675,536   2,518,385    23,193,921  1,276,768     856,513     1,274,965     3,408,246
                                ----------  -----------   ----------  ----------   ----------   ----------   -----------
                                ----------  -----------   ----------  ----------   ----------   ----------   -----------
Weighted average number of
 units........................                                         148,202      115,110      119,215        382,527
                                                                      ----------   ----------   ----------   -----------
                                                                      ----------   ----------   ----------   -----------
 
<CAPTION>
                                 PURCHASER
(IN THOUSANDS, EXCEPT SHARE     POST-MERGER
DATA)                            PRO FORMA
                                -----------
<S>                             <C>
Rental revenue................  $  112,380
Revenue from other real estate
 investments..................       1,132
Property management revenue...       2,356
                                -----------
    Total revenue.............     115,868
                                -----------
Operating expense.............      30,455
Property management fees......      --
Depreciation and
 amortization.................      21,606
Real estate taxes.............       9,023
General and administrative....       5,865
                                -----------
    Total expenses............      66,949
                                -----------
Income from operations........      48,919
                                -----------
Minority interest in income...      --
Interest and other income.....         671
Interest expense..............     (13,139 )
                                -----------
    Total other income
     (expense)................     (12,468 )
                                -----------
Net (loss) income.............  $   36,451
                                -----------
                                -----------
Net income per share..........  $     1.37
                                -----------
                                -----------
Weighted average number of
 shares.......................  26,602,167
                                -----------
                                -----------
Weighted average number of
 units........................
</TABLE>
 
- ----------------------------------
(1)   This  column  details  adjustments  related  to  the  recognition  of  the
    acquisition of the Tendered Units as if such had occurred on January 1, 1995
    and the effect  of the  following transactions as  if such  had occurred  on
    January 1, 1995:
 
     (i) the  merger of Shurgard  Incorporated which occurred  in March 1995 and
         was accounted for as a purchase;
 
    (ii) the acquisition of Shurgard Evergreen Limited Partnership ("Evergreen")
         which occurred  in  May 1995  and  was  accounted for  as  a  purchase.
         Evergreen  owned  7  storage  centers directly  and  an  interest  in 3
         additional stores through a joint venture;
 
   (iii) the sale of  approximately 4.9 million  shares of common  stock of  the
         Purchaser which occurred in June and July 1995; and
 
    (iv) the  acquisition of  four storage centers,  one was  purchased in March
         1995; the others, in summer 1995.
 
    Any additional net income resulting  from the assumption of consummation  of
    these transactions on January 1, 1995 is assumed to have been distributed to
    the Purchaser's stockholders during 1995.
 
(2)  Amount reflects the Purchaser's 20%  interest in the Partnerships' earnings
    allocated to Unitholders.
 
(3) Amounts reflects  increase in property  management fees from  the merger  of
    Shurgard Incorporated.
 
(4) Amount reflects increased operating expenses attributable to the acquisition
    of storage centers.
 
(5) Amount reflects increased depreciation related to the acquisition of storage
    centers  which are  being depreciated  over an  estimated useful  life of 30
    years and the  amortization of  $2.3 million  of transaction  costs over  an
    estimated useful life of 30 years.
 
(6)  Amount reflects increased  real estate taxes related  to the acquisition of
    storage centers.
 
(7) Amount  reflects  increased  expenses  related to  the  merger  of  Shurgard
    Incorporated.
 
(8)  Amount reflects decrease in investment income  as a result of using cash to
    finance the acquisitions described in (1) above.
 
                             Schedule VII - Page 5
<PAGE>
(9) Amount reflects reduction of interest  expense as a result of cash  provided
    by the offering of common stock described in (1) above.
 
(10) Adjustments by Partnership are as follows:
 
<TABLE>
<CAPTION>
(IN THOUSANDS, EXCEPT SHARE DATA)                              IDS1       IDS2       IDS3     ADJUSTMENTS
- -----------------------------------------------------------  ---------  ---------  ---------  -----------
<S>                                                          <C>        <C>        <C>        <C>
Revenue from other real estate investments.................  $    (740) $    (278) $    (357)  $  (1,375)(a)
Property management revenue................................       (514)      (359)      (551)     (1,424)(b)
Operating expense..........................................         11          8          5          24(c)
Property management fees...................................        388        258        433       1,079(d)
Depreciation and amortization..............................         75        (65)       (85)        (75)(e)
General and administrative.................................        (77)       (70)       (76)       (223)(f)
Minority interest in earnings..............................        264         --         --         264(g)
Interest expense...........................................        130        (18)       108         220(h)
Weighted average number of shares..........................  1,276,768    856,513  1,274,965   3,408,246(i)
                                                             ---------  ---------  ---------  -----------
                                                             ---------  ---------  ---------  -----------
Weighted average number of units...........................    148,202    115,110    119,215     382,527
                                                             ---------  ---------  ---------  -----------
                                                             ---------  ---------  ---------  -----------
</TABLE>
 
       -----------------------------------------
       (a)  Historical amounts have  been adjusted to  eliminate the Purchaser's
        20% interest  related to  the  Tendered Units  and the  Purchaser's  30%
        interest in the earnings of SJP II.
 
       (b)  Amount reflects elimination of property management fees, advertising
        fees (at $900 per year per storage center), the Purchaser's interest  in
        the  General  Partners  and administrative  reimbursements  paid  to the
        Purchaser by the Partnerships.
 
       (c) Amount  represents  elimination  of  advertising  fees  paid  by  the
        Partnerships to the Purchaser.
 
       (d)  Amount reflects elimination of property  management fees paid by the
        Partnerships to the Purchaser.
 
       (e) Amount  reflects  the  change in  depreciation  of  storage  centers.
        Depreciation  on a new basis of $97,424 will be recognized on a straight
        line basis over five to 30 years. Amortization of amortizable assets has
        been eliminated as such assets are not included in Net Asset Value.
 
       (f) Amount reflects elimination of administrative reimbursements paid  by
        the Partnerships to the Purchaser.
 
       (g)  Amount  reflects the  elimination  of the  Purchaser's  30% minority
        interest in the earnings of SJP II.
 
       (h) Amount reflects the  refinancing of the debt  of the Partnerships  at
        8.25% per annum.
 
       (i)   Weighted average number of shares to be issued to each Partnership,
        assuming a $25.00 share price, is calculated as follows:
 
<TABLE>
<CAPTION>
                                                                  IDS1        IDS2        IDS3
                                                               ----------  ----------  ----------
<S>                                                            <C>         <C>         <C>
Net Asset Value..............................................  $40,066,700 $26,861,846 $39,649,643
Less value of Tendered Units.................................  (7,617,480) (5,110,884) (7,343,644)
Purchaser's interest in General Partner......................    (530,000)   (338,125)   (431,875)
                                                               ----------  ----------  ----------
Consideration allocable to Unitholders participating in the
Merger.......................................................  $31,919,220 $21,412,837 $31,874,124
                                                                 DIVIDED BY   DIVIDED BY   DIVIDED BY
Assumed share price..........................................  25.00       25.00       25.00
                                                               ----------  ----------  ----------
Weighted average number of shares allocable to Unitholders
participating in the Merger..................................   1,276,768     856,513   1,274,965
                                                               ----------  ----------  ----------
                                                               ----------  ----------  ----------
</TABLE>
 
                             Schedule VII - Page 6
<PAGE>
                      PRO FORMA CONSOLIDATED BALANCE SHEET
                           MAXIMUM TENDER ASSUMPTION
                                 JUNE 30, 1996
<TABLE>
<CAPTION>
                                                          PURCHASER
                                PURCHASER    PURCHASER    PRE-MERGER      IDS1         IDS2         IDS3
(IN THOUSANDS)                  HISTORICAL  ADJUSTMENTS (1) PRO FORMA  HISTORICAL   HISTORICAL   HISTORICAL   ADJUSTMENTS (5)
                                ---------   -----------   ----------   ----------   ----------   ----------   -----------
<S>                             <C>         <C>           <C>          <C>          <C>          <C>          <C>
Storage centers, net..........  $549,658      $--          $549,658     $28,270      $24,547      $33,979      $ 37,068
Other real estate
 investments..................    25,127       43,599(2)     68,726       --           --           --          (46,048)
Cash, cash equivalents and
 other assets.................    56,777        1,358(3)     58,135       1,137          650        1,152          (790)
                                ---------   -----------   ----------   ----------   ----------   ----------   -----------
    Total assets..............  $631,562      $44,957      $676,519     $29,407      $25,197      $35,131      $ (9,770)
                                ---------   -----------   ----------   ----------   ----------   ----------   -----------
                                ---------   -----------   ----------   ----------   ----------   ----------   -----------
Accounts payable and other
 liabilities..................  $ 57,881       --          $ 57,881     $   710      $   924      $   917      $  1,545
Notes payable.................   132,250       44,957(4)    177,207       --           2,831       10,333        --
                                ---------   -----------   ----------   ----------   ----------   ----------   -----------
    Total liabilities.........   190,131       44,957       235,088         710        3,755       11,250         1,545
                                ---------   -----------   ----------   ----------   ----------   ----------   -----------
Minority interest.............     2,561       --             2,561       2,449        --           --           (2,449)
Stockholders' equity..........   438,870       --           438,870      26,248       21,442       23,881        (8,866)
                                ---------   -----------   ----------   ----------   ----------   ----------   -----------
    Total liabilities and
     stockholders' equity.....  $631,562      $44,957      $676,519     $29,407      $25,197      $35,131      $ (9,770)
                                ---------   -----------   ----------   ----------   ----------   ----------   -----------
                                ---------   -----------   ----------   ----------   ----------   ----------   -----------
 
<CAPTION>
                                 PURCHASER
                                POST-MERGER
(IN THOUSANDS)                   PRO FORMA
                                -----------
<S>                             <C>
Storage centers, net..........   $673,522
Other real estate
 investments..................     22,678
Cash, cash equivalents and
 other assets.................     60,284
                                -----------
    Total assets..............   $756,484
                                -----------
                                -----------
Accounts payable and other
 liabilities..................   $ 61,977
Notes payable.................    190,371
                                -----------
    Total liabilities.........    252,348
                                -----------
Minority interest.............      2,561
Stockholders' equity..........    501,575
                                -----------
    Total liabilities and
     stockholders' equity.....   $756,484
                                -----------
                                -----------
</TABLE>
 
- ----------------------------------
(1)  Purchaser adjustments  reflect the  purchase of  65,000, 49,000  and 52,000
    Units of IDS1, IDS2 and IDS3, for $257, $222 and $308 per unit, respectively
    ("Maximum Tendered Units"), as if such occurred on January 1, 1995.
 
(2) Amount reflects Purchaser's acquisition of the Tendered Units.
 
(3) Amount reflects funds borrowed to  pay the unpaid amount of the  Purchaser's
    estimated costs of $2,300,000 related to the Mergers and the Offers.
 
(4)  Amount reflects the additional debt incurred to finance the purchase of the
    Tendered Units and the Purchaser's estimated transaction costs.
 
(5) Adjustments by Partnership are as follows:
 
<TABLE>
<CAPTION>
(IN THOUSANDS)                                                      IDS1       IDS2       IDS3     ADJUSTMENTS
- ----------------------------------------------------------------  ---------  ---------  ---------  -----------
<S>                                                               <C>        <C>        <C>        <C>
Storage centers, net............................................  $  14,184(a) $   5,973 $  16,911  $  37,068(c)
Other real estate investments...................................    (19,154)   (10,878)   (16,016)    (46,048)(d)
Cash, cash equivalents and other assets.........................       (126)      (207)      (457)       (790)(e)
Accounts payable and other liabilities..........................        515        345        685(b)      1,545(f)
Minority interest...............................................     (2,449)    --         --          (2,449)(g)
Stockholders' equity............................................     (3,162)    (5,457)      (247)     (8,866)(h)
</TABLE>
 
       -----------------------------------------
       (a) Adjustment includes only  70% of the step-up  to market value of  SJP
        II's  storage centers  as the remaining  30% was owned  by the Purchaser
        prior to the Mergers and will continue to be carried at the  Purchaser's
        historical cost.
 
       (b)  Historical amount has been adjusted to include $176,000 of estimated
        costs to complete  the expansion of  Dobson Ranch, the  market value  of
        which was included in the Appraisal.
 
       (c)  Amount reflects  market value of  self storage centers  based on the
        Appraisals.
 
       (d) Historical  amounts  have  been adjusted  to  eliminate  the  Maximum
        Tendered Units and the Purchaser's 30% interest in SJP II.
 
       (e)  Historical  assets have  been reduced  to eliminate  (i) amortizable
        assets which  were specifically  excluded from  the calculation  of  Net
        Asset  Value per the Acquisition Agreement,  and (ii) cash that would be
        payable to  Unitholders  at  the  time of  the  Mergers  as  liquidating
        distributions  of  $113,000, $134,000  and $196,000  for IDS1,  IDS2 and
        IDS3, respectively. The actual amounts of such liquidating distributions
        may be greater than  or less than pro  forma amounts depending upon  the
        actual  amount of transaction costs incurred by each Partnership and the
        Partnerships' results of  operations prior  to the  consummation of  the
        Mergers.
 
       (f)   Historical  amounts   have  been  adjusted   to  include  estimated
        liabilities for unaccrued Partnership transaction costs. See "The Offer"
        -- Section 10 ("Fees and Expenses").
 
       (g) Amount  reflects  elimination of  minority  interest related  to  the
        Purchaser's 30% interest in SJP II.
 
       (h)  Amount reflects  step-up to  Net Asset Value  less the  value of the
        Maximum Tendered Units.
 
                             Schedule VII - Page 7
<PAGE>
                 PRO FORMA CONSOLIDATED STATEMENT OF NET INCOME
                           MAXIMUM TENDER ASSUMPTION
                         SIX MONTHS ENDED JUNE 30, 1996
<TABLE>
<CAPTION>
                                                          PURCHASER
(IN THOUSANDS, EXCEPT SHARE     PURCHASER    PURCHASER    PRE-MERGER     IDS1         IDS2         IDS3
DATA)                           HISTORICAL  ADJUSTMENTS (1) PRO FORMA HISTORICAL   HISTORICAL   HISTORICAL   ADJUSTMENTS (5)
                                ----------  -----------   ----------  ----------   ----------   ----------   -----------
<S>                             <C>         <C>           <C>         <C>          <C>          <C>          <C>
Rental revenue................  $   48,513    $--         $  48,513    $ 3,278      $ 2,255      $ 3,673      $  --
Revenue from other real estate
 investments..................         895      1,285(2)      2,180      --           --           --            (1,427)
Property management revenue...       1,734     --             1,734      --           --           --              (673)
                                ----------  -----------   ----------  ----------   ----------   ----------   -----------
    Total revenue.............      51,142      1,285        52,427      3,278        2,255        3,673         (2,100)
                                ----------  -----------   ----------  ----------   ----------   ----------   -----------
Operating expense.............      14,192     --            14,192        757          506          919              4
Property management fees......      --         --            --            197          135          219           (551)
Depreciation and
 amortization.................      10,399         38(3)     10,437        520          464          667             81
Real estate taxes.............       4,190     --             4,190        252          174          273         --
General and administrative....       2,244     --             2,244        136           94          113            (53)
                                ----------  -----------   ----------  ----------   ----------   ----------   -----------
    Total expenses............      31,025         38        31,063      1,862        1,373        2,191           (519)
                                ----------  -----------   ----------  ----------   ----------   ----------   -----------
Income from operations........      20,117      1,247        21,364      1,416          882        1,482         (1,581)
                                ----------  -----------   ----------  ----------   ----------   ----------   -----------
Transaction expenses..........      --         --            --           (425)        (285)        (421)         1,131
Minority interest in income...         (57)    --               (57 )     (142)       --           --               142
Interest and other income.....         302     --               302         18            9           15         --
Interest expense..............      (5,248)    (1,854)(4)    (7,102 )    --            (139)        (432)             8
                                ----------  -----------   ----------  ----------   ----------   ----------   -----------
    Total other income
     (expense)................      (5,003)    (1,854)       (6,857 )     (549)        (415)        (838)         1,281
                                ----------  -----------   ----------  ----------   ----------   ----------   -----------
Net income (loss).............  $   15,114    $  (607)    $  14,507    $   867      $   467      $   644      $    (300)
                                ----------  -----------   ----------  ----------   ----------   ----------   -----------
                                ----------  -----------   ----------  ----------   ----------   ----------   -----------
Net income per share..........  $     0.65    $ (0.03)    $    0.63
                                ----------  -----------   ----------
                                ----------  -----------   ----------
Weighted average number of
 shares.......................  23,199,023  23,199,028    23,199,023   913,268      625,828      928,070      2,467,166
                                ----------  -----------   ----------  ----------   ----------   ----------   -----------
                                ----------  -----------   ----------  ----------   ----------   ----------   -----------
Weighted average number of
 units........................                                         148,202      115,110      119,215        382,527
                                                                      ----------   ----------   ----------   -----------
                                                                      ----------   ----------   ----------   -----------
 
<CAPTION>
                                 PURCHASER
(IN THOUSANDS, EXCEPT SHARE     POST-MERGER
DATA)                            PRO FORMA
                                -----------
<S>                             <C>
Rental revenue................  $   57,719
Revenue from other real estate
 investments..................         753
Property management revenue...       1,061
                                -----------
    Total revenue.............      59,533
                                -----------
Operating expense.............      16,378
Property management fees......      --
Depreciation and
 amortization.................      12,169
Real estate taxes.............       4,889
General and administrative....       2,534
                                -----------
    Total expenses............      35,970
                                -----------
Income from operations........      23,563
                                -----------
Transaction expenses..........      --
Minority interest in income...         (57)
Interest and other income.....         344
Interest expense..............      (7,665)
                                -----------
    Total other income
     (expense)................      (7,378)
                                -----------
Net income (loss).............  $   16,185
                                -----------
                                -----------
Net income per share..........  $     0.63
                                -----------
                                -----------
Weighted average number of
 shares.......................  25,666,189
                                -----------
                                -----------
Weighted average number of
 units........................
</TABLE>
 
- ----------------------------------
(1) Purchaser  Adjustments recognize  the acquisition  of the  Maximum  Tendered
    Units as if such had occurred on January 1, 1995.
 
(2)  Amount reflects the Purchaser's 20%  interest in the Partnership's earnings
    allocated to the Unitholders.
 
(3) Amounts reflects  amortization of  transaction costs  of $2.3  million on  a
    straight-line basis over 30 years.
 
(4)  Amount reflects interest at 8.25% per  annum on additional debt incurred to
    finance the acquisition of  the Maximum Tendered  Units and the  transaction
    costs.
 
                             Schedule VII - Page 8
<PAGE>
(5) Adjustments by Partnership are as follows:
 
<TABLE>
<CAPTION>
(IN THOUSANDS, EXCEPT SHARE DATA)                                IDS1       IDS2       IDS3       TOTAL
- -------------------------------------------------------------  ---------  ---------  ---------  ---------
<S>                                                            <C>        <C>        <C>        <C>
Revenue from other real estate investments...................  $    (681) $    (305) $    (441) $  (1,427)(a)
Property management revenue..................................       (244)      (168)      (261)      (673)(b)
Operating expense............................................          3          1         --          4(c)
Property management fees.....................................       (197)      (135)      (219)      (551)(d)
Depreciation and amortization................................         75        (37)        43         81(e)
General and administrative...................................        (20)       (14)       (19)       (53)(f)
Transaction expenses.........................................        425        285        421      1,131(g)
Minority interest in earnings................................        142         --         --        142(h)
Interest expense.............................................         --          3          5          8(i)
Weighted average number of shares............................    913,268    625,828    928,070  2,467,166(j)
Weighted average number of units.............................    148,203    115,110    119,215    382,527
- ----------------------------------
(a)   Historical  amounts have been  adjusted to  eliminate the Purchaser's  20% interest  related to the
     Maximum Tendered Units and the Purchaser's 30% interest in the earnings of SJP II.
 
(b)  Amount  reflects elimination of  property management fees,  advertising fees (at  $900 per year  per
     storage  center), the Purchaser's interest in the General Partners and administrative reimbursements
     paid to the Purchaser by the Partnerships.
 
(c)  Amount represents elimination of advertising fees paid by the Partnerships to the Purchaser.
 
(d)  Amount reflects elimination of property management fees paid by the Partnerships to the Purchaser.
 
(e)  Amount  reflects the  change in  depreciation of storage  centers. Depreciation  on a  new basis  of
     $97,424  will  be recognized  on  a straight  line  basis over  five  to 30  years.  Amortization of
     amortizable assets has been eliminated as such assets are not included in Net Asset Value.
 
(f)   Amount reflects  elimination  of administrative  reimbursements paid  by  the Partnerships  to  the
     Purchaser.
 
(g)    Amount reflects  elimination of  transaction  expenses as  such costs  have  been included  in the
     calculation of Net Asset Value.
 
(h)  Amount reflects the elimination of the Purchaser's 30% minority interest in the earnings of SJP II.
 
(i)  Amount reflects the refinancing of the debt of the Partnerships at 8.25% per annum.
 
(j)  Weighted average number of shares to be  issued to each Partnership, assuming a $25.00 share  price,
     is calculated as follows:
</TABLE>
 
<TABLE>
<CAPTION>
                                                                  IDS1        IDS2        IDS3
                                                               ----------  ----------  ----------
<S>                                                            <C>         <C>         <C>
Net Asset Value..............................................  $40,066,700 $26,861,846 $39,649,643
Less value of Maximum Tendered Units.........................  (16,705,000) (10,878,000) (16,016,000)
Purchaser's interest in General Partner......................    (530,000)   (338,125)   (431,875)
                                                               ----------  ----------  ----------
Consideration allocable to Unitholders participating in the
Merger.......................................................  $22,831,700 $15,645,721 $23,201,768
                                                                 DIVIDED BY   DIVIDED BY   DIVIDED BY
Assumed share price..........................................  25.00       25.00       25.00
                                                               ----------  ----------  ----------
Weighted average number of shares allocable to Unitholders
participating in the Mergers.................................     913,268     625,828     928,070
                                                               ----------  ----------  ----------
                                                               ----------  ----------  ----------
</TABLE>
 
                             Schedule VII - Page 9
<PAGE>
                 PRO FORMA CONSOLIDATED STATEMENT OF NET INCOME
                           MAXIMUM TENDER ASSUMPTION
                          YEAR ENDED DECEMBER 31, 1995
<TABLE>
<CAPTION>
                                                          PURCHASER
(IN THOUSANDS, EXCEPT SHARE     PURCHASER    PURCHASER    PRE-MERGER     IDS1         IDS2         IDS3
DATA)                           HISTORICAL  ADJUSTMENTS (1) PRO FORMA HISTORICAL   HISTORICAL   HISTORICAL   ADJUSTMENTS (10)
                                ----------  -----------   ----------  ----------   ----------   ----------   -----------
<S>                             <C>         <C>           <C>         <C>          <C>          <C>          <C>
Rental revenue................  $   92,397   $   1,984    $  94,381    $ 6,465      $ 4,309      $ 7,225      $  --
Revenue from other real estate
 investments..................       1,396       2,416(2)     3,812      --           --           --            (2,680)
Property management revenue...       2,978         802(3)     3,780      --           --           --            (1,424)
                                ----------  -----------   ----------  ----------   ----------   ----------   -----------
    Total revenue.............      96,771       5,202      101,973      6,465        4,309        7,225         (4,104)
                                ----------  -----------   ----------  ----------   ----------   ----------   -----------
Operating expense.............      26,171          23(4)    26,194      1,493          944        1,800             24
Property management fees......      --                                     388          258          433         (1,079)
Depreciation and
 amortization.................      17,410         733(5)    18,143      1,114          919        1,505            (75)
Real estate taxes.............       7,596         131(6)     7,727        466          324          506         --
General and administrative....       4,859         684(7)     5,543        216          159          170           (223)
                                ----------  -----------   ----------  ----------   ----------   ----------   -----------
    Total expenses............      56,036       1,571       57,607      3,677        2,604        4,414         (1,353)
                                ----------  -----------   ----------  ----------   ----------   ----------   -----------
Income from operations........      40,735       3,631       44,366      2,788        1,705        2,811         (2,751)
                                ----------  -----------   ----------  ----------   ----------   ----------   -----------
Minority interest in income...      --          --           --           (264)       --           --               264
Interest and other income.....         885        (368)(8)       517       109           10           35
Interest expense..............     (12,038)     (1,918)(9)   (13,956 )     (130)       (254)        (961)           220
                                ----------  -----------   ----------  ----------   ----------   ----------   -----------
    Total other income
     (expense)................     (11,153)     (2,286)     (13,439 )     (285)        (244)        (926)           484
                                ----------  -----------   ----------  ----------   ----------   ----------   -----------
Net (loss) income.............  $   29,582   $   1,345    $  30,927    $ 2,503      $ 1,461      $ 1,885      $  (2,267)
                                ----------  -----------   ----------  ----------   ----------   ----------   -----------
                                ----------  -----------   ----------  ----------   ----------   ----------   -----------
Net income per share..........  $     1.43   $    0.53    $    1.33
                                ----------  -----------   ----------
                                ----------  -----------   ----------
Weighted average number of
 shares.......................  20,675,536   2,518,385    23,193,921   913,268      625,828      928,070      2,467,166
                                ----------  -----------   ----------  ----------   ----------   ----------   -----------
                                ----------  -----------   ----------  ----------   ----------   ----------   -----------
Weighted average number of
 units........................                                         148,202      115,110      119,215        382,527
                                                                      ----------   ----------   ----------   -----------
                                                                      ----------   ----------   ----------   -----------
 
<CAPTION>
                                 PURCHASER
(IN THOUSANDS, EXCEPT SHARE     POST-MERGER
DATA)                            PRO FORMA
                                -----------
<S>                             <C>
Rental revenue................  $  112,380
Revenue from other real estate
 investments..................       1,132
Property management revenue...       2,356
                                -----------
    Total revenue.............     115,868
                                -----------
Operating expense.............      30,455
Property management fees......      --
Depreciation and
 amortization.................      21,606
Real estate taxes.............       9,023
General and administrative....       5,865
                                -----------
    Total expenses............      66,949
                                -----------
Income from operations........      48,919
                                -----------
Minority interest in income...      --
Interest and other income.....         671
Interest expense..............     (15,081 )
                                -----------
    Total other income
     (expense)................     (14,410 )
                                -----------
Net (loss) income.............  $   34,509
                                -----------
                                -----------
Net income per share..........  $     1.34
                                -----------
                                -----------
Weighted average number of
 shares.......................  25,661,087
                                -----------
                                -----------
Weighted average number of
 units........................
</TABLE>
 
- ----------------------------------
(1)   This  column  details  adjustments  related  to  the  recognition  of  the
    acquisition of the Maximum Tendered Units as if such had occurred on January
    1, 1995 and the effect of the following transactions as if such had occurred
    on January 1, 1995:
 
     (i) the merger of Shurgard  Incorporated which occurred  in March 1995  and
         was accounted for as a purchase;
 
    (ii) the acquisition of Shurgard Evergreen Limited Partnership ("Evergreen")
         which  occurred  in  May 1995  and  was  accounted for  as  a purchase.
         Evergreen owned  7  storage  centers  directly and  an  interest  in  3
         additional stores through a joint venture;
 
   (iii) the  sale of  approximately 4.9 million  shares of common  stock of the
         Purchaser which occurred in June and July 1995; and
 
    (iv) the acquisition of  four storage  centers, one was  purchased in  March
         1995; the others, in summer 1995.
 
    Any  additional net income resulting from  the assumption of consummation of
    these transactions on January 1, 1995 is assumed to have been distributed to
    the Purchaser's stockholders during 1995.
 
(2) Amount reflects the Purchaser's  20% interest in the Partnerships'  earnings
    allocated to Unitholders.
 
(3)  Amounts reflects  increase in property  management fees from  the merger of
    Shurgard Incorporated.
 
(4) Amount reflects increased operating expenses attributable to the acquisition
    of storage centers.
 
(5) Amount reflects increased depreciation related to the acquisition of storage
    centers which are  being depreciated  over an  estimated useful  life of  30
    years  and the  amortization of  $2.3 million  of transaction  costs over an
    estimated useful life of 30 years.
 
(6) Amount reflects increased  real estate taxes related  to the acquisition  of
    storage centers.
 
(7)  Amount  reflects  increased  expenses related  to  the  merger  of Shurgard
    Incorporated.
 
(8) Amount reflects decrease in investment income  as a result of using cash  to
    finance the acquisitions described in (1) above.
 
                             Schedule VII - Page 10
<PAGE>
(9)  Amount reflects reduction of interest expense  as a result of cash provided
    by the offering of common stock described in (1) above.
 
(10) Adjustments by Partnership are as follows:
 
<TABLE>
<CAPTION>
(IN THOUSANDS, EXCEPT SHARE DATA)                              IDS1       IDS2       IDS3     ADJUSTMENTS
- -----------------------------------------------------------  ---------  ---------  ---------  -----------
<S>                                                          <C>        <C>        <C>        <C>
Revenue from other real estate investments.................  $  (1,308) $    (591) $    (781)  $  (2,680)(a)
Property management revenue................................       (514)      (359)      (551)     (1,424)(b)
Operating expense..........................................         11          8          5          24(c)
Property management fees...................................        388        258        433       1,079(d)
Depreciation and amortization..............................         75        (65)       (85)        (75)(e)
General and administrative.................................        (77)       (70)       (76)       (223)(f)
Minority interest in earnings..............................        264         --         --         264(g)
Interest expense...........................................        130        (18)       108         220(h)
Weighted average number of shares..........................    913,268    625,828    928,070   2,467,166(i)
                                                             ---------  ---------  ---------  -----------
                                                             ---------  ---------  ---------  -----------
Weighted average number of units...........................    148,202    115,110    119,215     382,527
                                                             ---------  ---------  ---------  -----------
                                                             ---------  ---------  ---------  -----------
</TABLE>
 
       -----------------------------------------
       (a) Historical amounts  have been adjusted  to eliminate the  Purchaser's
        20%  interest related to the Maximum  Tendered Units and the Purchaser's
        30% interest in the earnings of SJP II.
 
       (b) Amount reflects elimination of property management fees,  advertising
        fees  (at $900 per year per storage center), the Purchaser's interest in
        the General  Partners  and  administrative reimbursements  paid  to  the
        Purchaser by the Partnerships.
 
       (c)  Amount  represents  elimination  of  advertising  fees  paid  by the
        Partnerships to the Purchaser.
 
       (d) Amount reflects elimination of  property management fees paid by  the
        Partnerships to the Purchaser.
 
       (e)  Amount  reflects  the  change in  depreciation  of  storage centers.
        Depreciation on a new basis of $97,424 will be recognized on a  straight
        line basis over five to 30 years. Amortization of amortizable assets has
        been eliminated as such assets are not included in Net Asset Value.
 
       (f)  Amount reflects elimination of administrative reimbursements paid by
        the Partnerships to the Purchaser.
 
       (g) Amount  reflects  the elimination  of  the Purchaser's  30%  minority
        interest in the earnings of SJP II.
 
       (h)  Amount reflects the  refinancing of the debt  of the Partnerships at
        8.25% per annum.
 
       (i)  Weighted average number of shares to be issued to each  Partnership,
        assuming a $25.00 share price, is calculated as follows:
 
<TABLE>
<CAPTION>
                                                                  IDS1        IDS2        IDS3
                                                               ----------  ----------  ----------
<S>                                                            <C>         <C>         <C>
Net Asset Value..............................................  $40,066,700 $26,861,846 $39,649,643
Less value of Maximum Tendered Units.........................  (16,705,000) (10,878,000) (16,016,000)
Purchaser's interest in General Partner......................    (530,000)   (338,125)   (431,875)
                                                               ----------  ----------  ----------
Consideration allocable to Unitholders participating in the
Merger.......................................................  $22,831,700 $15,645,721 $23,201,768
                                                                 DIVIDED BY   DIVIDED BY   DIVIDED BY
Assumed share price..........................................  25.00       25.00       25.00
                                                               ----------  ----------  ----------
Weighted average number of shares allocable to Unitholders
participating in the Merger..................................     913,268     625,828     928,070
                                                               ----------  ----------  ----------
                                                               ----------  ----------  ----------
</TABLE>
 
                             Schedule VII - Page 11
<PAGE>
SCHEDULE VIII IS HEREBY AMENDED AND RESTATED IN ITS ENTIRETY AS FOLLOWS:
 
                                 SCHEDULE VIII
                           PARTNERSHIP DISTRIBUTIONS
 
    The  following table  sets forth the  distributions paid  per Unit (original
purchase price $250 per Unit) in the periods indicated below:
 
<TABLE>
<CAPTION>
YEAR                                                                              DISTRIBUTION
- --------------------------------------------------------------------------------  -------------
<S>                                                                               <C>
1988
  Third Quarter.................................................................    $    2.25
  Fourth Quarter................................................................         3.03
1989
  First Quarter.................................................................         2.76
  Second Quarter................................................................         3.75
  Third Quarter.................................................................         3.75
  Fourth Quarter................................................................         3.75
1990
  First Quarter.................................................................         3.75
  Second Quarter................................................................         3.75
  Third Quarter.................................................................         3.75
  Fourth Quarter................................................................         3.75
1991
  First Quarter.................................................................         3.75
  Second Quarter................................................................         3.75
  Third Quarter.................................................................         3.75
  Fourth Quarter................................................................         3.75
1992
  First Quarter.................................................................         3.75
  Second Quarter................................................................         3.75
  Third Quarter.................................................................         3.75
  Fourth Quarter................................................................         3.75
1993
  First Quarter.................................................................         3.75
  Second Quarter................................................................         3.75
  Third Quarter.................................................................         3.75
  Fourth Quarter................................................................         3.91
1994
  First Quarter.................................................................         4.06
  Second Quarter................................................................         4.14
  Third Quarter.................................................................         4.38
  Fourth Quarter................................................................         4.45
1995
  First Quarter.................................................................         4.69
  Second Quarter................................................................         4.84
  Third Quarter.................................................................         4.84
  Fourth Quarter................................................................         4.84
1996
  First Quarter.................................................................         4.84
  Second Quarter................................................................         4.84
</TABLE>
 
                             Schedule VIII - Page 1
<PAGE>
SCHEDULE IX IS HEREBY AMENDED AND RESTATED IN ITS ENTIRETY AS FOLLOWS:
 
                                  SCHEDULE IX
                              PROPERTY INFORMATION
 
    The following table  sets forth  certain information regarding  each of  the
Partnership's  self storage centers,  including occupancy at  December 31, 1991,
1992, 1993, 1994, 1995 and June 30, 1996.
<TABLE>
<CAPTION>
                                                                                                        OCCUPANCY AT
                                                                      NET                   -------------------------------------
                                                         YEAR      RENTABLE                  DEC. 31,     DEC. 31,     DEC. 31,
   PROPERTY NAME      PROPERTY LOCATION   OWNED SINCE    BUILT    SQUARE FEET    ACREAGE       1991         1992         1993
- --------------------  ------------------  -----------  ---------  -----------  -----------  -----------  -----------  -----------
<S>                   <C>                 <C>          <C>        <C>          <C>          <C>          <C>          <C>
South Military Hwy.   Virginia Beach, VA        1988     1984         48,000          2.7        *            *           *
Midlothian Turnpike   Richmond, VA              1988     1984         44,000          2.9       *            *            *
Burke                 Fairfax, VA               1988     1984         32,000          1.7       *            *            *
Margate               Margate, FL               1988    1984/86       75,000          4.0           89           96           92
Walnut                Walnut, CA                1988     1986         96,000          3.6           76           86           83
Ontario               Ontario, CA               1988     1984         57,000          2.1       *            *            *
Morgan Falls          Dunwoody, GA              1988     1990         76,000          3.7           74           94           95
Factoria Square       Bellevue, WA              1990     1989         70,000          1.9           70           93           95
Canton**              Canton, MI                1988     1986         58,000          3.3       *            *            *
Fraser**              Fraser, MI                1988     1985         73,000          5.2       *            *            *
Livonia**             Livonia, MI               1988     1985         67,000          4.8       *            *            *
Warren**              Warren, MI                1988     1985         68,000          4.6       *            *            *
                                                                  -----------         ---
  Total                                                              764,000         40.5
 
<CAPTION>
                       DEC. 31,     DEC. 31,      JUNE 30,
   PROPERTY NAME         1994         1995          1996
- --------------------  -----------  -----------  -------------
<S>                   <C>          <C>          <C>
South Military Hwy.       *            *             *
Midlothian Turnpike       *            *             *
Burke                     *            *             *
Margate                       92           89            89
Walnut                        82           78            77
Ontario                   *            *             *
Morgan Falls                  95           93            95
Factoria Square               96           97            98
Canton**                  *            *             *
Fraser**                  *            *             *
Livonia**                 *            *             *
Warren**                  *            *             *
  Total
</TABLE>
 
- ------------------------------
 * These properties are individually less  than 10% of historical cost of  total
    storage  centers for  the Partnership  and Shurgard  Joint Partners  II. The
    average occupancy of  these projects was  86%, 87% and  89% at December  31,
    1993, 1994 and 1995, respectively, and 92% at June 30, 1996.
 
**   Property owned by Shurgard Joint Partners II in which the Partnership has a
    70% interest. Net rentable square feet is the total for the property.
 
    The following table presents the  average occupancy per net rentable  square
foot  and  average annual  rental  rate per  net  rentable square  foot  for the
Partnership's properties for the  years ended December 31,  1993, 1994 and  1995
and the six months ended June 30, 1996.
 
<TABLE>
<CAPTION>
                                                                          FOR THE YEAR ENDED DECEMBER 31,
                                                                                                            FOR THE SIX
                                                                          -------------------------------  MONTHS ENDED
                                                                            1993       1994       1995     JUNE 30, 1996
                                                                          ---------  ---------  ---------  -------------
<S>                                                                       <C>        <C>        <C>        <C>
Average occupancy.......................................................        90%        90%        90%          89%
Average rate per square foot............................................  $    7.33  $    8.03  $    8.63    $    8.92
</TABLE>
 
                              Schedule IX - Page 1
<PAGE>
    A  Letter of Transmittal and any other  required documents should be sent or
delivered by each  Unitholder or  his or  her broker,  dealer, commercial  bank,
trust  company or other  nominee to the  Depositary at one  of its addresses set
forth below.
 
                       The Depositary for this Offer is:
 
                              GEMISYS CORPORATION
 
<TABLE>
<S>                                             <C>
         By Overnight/Hand Delivery:                               By Mail:
            7103 S. Revere Parkway                              P.O. Box 3897
             Englewood, CO 80112                           Englewood, CO 80155-9756
</TABLE>
 
    Any questions  or  requests for  assistance  or additional  copies  of  this
Supplement,  the Offer to Purchase and the Letter of Transmittal may be directed
to the Information Agent at its telephone number and location listed below.  You
may  also  contact your  broker, dealer,  commercial bank  or trust  company for
assistance concerning this Offer.
 
                    The Information Agent for this Offer is:
 
                             D.F. KING & CO., INC.
 
                                77 Water Street
                               New York, NY 10005
                         (212) 269-5550 (Call Collect)
                                       or
                           1-800-207-2872 (Toll Free)

<PAGE>
 [LOGO]
                        1201 Third Avenue, Suite 2200, Seattle, Washington 98101
 
IF YOU HAVE ANY QUESTIONS ABOUT THIS OFFER OR IF YOU NEED HELP IN COMPLETING THE
LETTER  OF TRANSMITTAL, PLEASE CALL THE INFORMATION AGENT, D.F. KING & CO., INC.
AT (800) 207-2872.
 
                                August 26, 1996
 
    Re:  Cash Tender Offer for up to 65,000 Units of
       IDS/Shurgard Income Growth Partners L.P.
 
Dear Unitholder:
 
    Shurgard Storage Centers,  Inc., a Delaware  corporation (the  "Purchaser"),
has  amended and supplemented its  offer to purchase (the  "Offer") up to 65,000
units of  limited  partnership interest  (the  "Units") in  IDS/Shurgard  Income
Growth Partners L.P., a Washington limited partnership (the "Partnership"), at a
net  cash price per Unit of $257 (the "Offer Price"). The Offer is now made upon
the terms and subject to the conditions set forth in the Offer to Purchase dated
July 2, 1996, as amended by the Purchaser's letter to Unitholders dated July 16,
1996 (the "July  16 Letter") and  the enclosed Supplement  to Offer to  Purchase
(the "Supplement"), and in the related Letter of Transmittal.
 
    The Supplement amends and supplements the following sections of the Offer to
Purchase:  the cover  page, "Incorporation  of Certain  Documents By Reference,"
"Cautionary Statement,"  "Summary,"  "Special Considerations,"  "Background  and
Purposes  of the  Transaction," "Fairness  of the  Transaction; Position  of the
General Partner," "Appraisal; Opinions of Financial Advisors," "Market Prices of
Units," "Interests  of Certain  Persons,"  "The Offer"  -- Section  7  ("Certain
Conditions  of the Offer") and --  Section 11 ("Miscellaneous") and Schedules I,
V, VI,  VII, VIII  and IX.  Except as  set forth  in the  Supplement, the  Offer
continues  to be governed by the terms and  conditions set forth in the Offer to
Purchase, as  amended by  the  July 16  Letter, and  in  the related  Letter  of
Transmittal,  and the information contained therein continues to be important to
each  Unitholder's  decision  with  respect  to  the  Offer.  Accordingly,   the
Supplement  should be carefully read in  conjunction with the Offer to Purchase,
the July 16 Letter and the Letter of Transmittal previously mailed to you.
 
    If you wish  to sell your  Units and receive  a net cash  price of $257  per
Unit, please complete the Letter of Transmittal and return it to the address set
forth  on the back cover of the Offer  to Purchase and the Supplement before the
expiration date.
 
    PLEASE NOTE THAT THE EXPIRATION DATE OF THE OFFER HAS BEEN EXTENDED TO  6:00
P.M., NEW YORK CITY TIME, ON MONDAY, SEPTEMBER 9, 1996.
 
    UNITHOLDERS  WHO HAVE VALIDLY TENDERED UNITS AND NOT WITHDRAWN THEIR TENDERS
NEED TAKE NO FURTHER ACTION TO VALIDLY TENDER THOSE UNITS.
 
    We thank you for your prompt attention to this matter.
 
                                          Very truly yours,
 
                                            [CHARLES K. BARBO]
 
                                          Charles K. Barbo
                                          CHAIRMAN AND CHIEF EXECUTIVE OFFICER
                                          SHURGARD STORAGE CENTERS, INC.

<PAGE>

                                                                   PRESS RELEASE

                                     [Letterhead]


CONTACT:
Jennifer Wall                               DeLise Keim
David Frank                                 Harrell Beck
D.F. King & Co., Inc.                       Shurgard Storage Centers, Inc.
212/269-5550                                206/624-8100


FOR IMMEDIATE RELEASE

               SHURGARD EXTENDS OFFERS TO PURCHASE LIMITED PARTNERSHIP
             UNITS IN THREE AFFILIATED SELF STORAGE LIMITED PARTNERSHIPS

     SEATTLE, WASHINGTON, AUGUST 26, 1996...Shurgard Storage Centers,
Inc. ("Shurgard") (NYSE:SHU) announced today that it has extended its offers to
purchase (the "Offers") up to 65,000 limited partnership units in IDS/Shurgard
Income Growth Partners L.P. ("IDS1") for a net cash price of $257 per unit, up
to 49,000 limited partnership units in IDS/Shurgard Income Growth Partners L.P.
II("IDS2") for a net cash price of $222 per unit and up to 52,000 limited
partnership units in IDS/Shurgard Income Growth Partners L.P. III ("IDS3") for a
net cash price of $308 per unit.  The Offers have been extended to provide
unitholders an opportunity to review the Supplements to the Offers to Purchase,
dated August 26, 1996.  The Offers and withdrawal rights now will expire at 6:00
p.m., New York City time, Monday, September 9, 1996, unless extended.

     Shurgard also announced that as of 6:00 p.m., New York City time, August
23, 1996 IDS1 unitholders had validly tendered and not withdrawn approximately
60,206 IDS1 limited partnership units (approximately 41% of the total 
outstanding units).  IDS2 unitholders had validly tendered and not withdrawn
approximately 33,666 IDS2 limited partnership units (approximately 29% of the
total outstanding units) and IDS3 unitholders had validly tendered and not
withdrawn approximately 47,734 IDS3 limited partnership units (approximately 40%
of the total outstanding units).


                                        (MORE)

<PAGE>


Shurgard Storage Centers, Inc.
August 26, 1996
Page 2


     The Offers are being made pursuant to an Acquisition Agreement, dated as of
July 1, 1996, between Shurgard and IDS1, IDS2, and IDS3 (the "Partnerships"). 
The Acquisition Agreement provided that, after completion of the Offers and
subject to the approval of the requisite vote of unitholders of each
Partnership, the Partnerships will be merged with and into Shurgard.  If the
Merger is consummated, unitholders of the Partnerships who participate in the
Merger will receive shares of Shurgard Class A Common Stock in exchange for
their limited partnership units.  The General Partners of each of the
Partnerships have recommended that those unitholders who desire immediate
liquidity tender their units in the Offers and that all other unitholders retain
their units and, instead, participate in the Merger.


                                         ###




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