1
                                  SUPPLEMENT TO
                           OFFER TO PURCHASE FOR CASH

                                      AIMCO

                             AIMCO Properties, L.P.
  is offering to purchase any and all units of limited partnership interests in

                HCW PENSION REAL ESTATE FUND LIMITED PARTNERSHIP

                          FOR $478.00 PER UNIT IN CASH

Upon the terms and subject to the conditions set forth herein, we will accept
any and all units validly tendered in response to our offer. If units are
validly tendered and not properly withdrawn prior to the expiration date and the
purchase of all such units would result in there being less than 320
unitholders, we will purchase only 99% of the total number of units so tendered
by each limited partner.

Our offer is not subject to a minimum number of units being tendered.

Our offer and your withdrawal rights will expire at 5:00 P.M., New York City
time, on June 26, 2000, unless we extend the deadline.

You will not pay any partnership transfer fees if you tender your units. You
will pay any other fees and costs, including any transfer taxes.

Our offer price will be reduced for any distributions subsequently made by your
partnership prior to the expiration of our offer.


         SEE "RISK FACTORS" IN THE OFFER TO PURCHASE, DATED MAY 15, 2000, FOR A
DESCRIPTION OF RISK FACTORS THAT YOU SHOULD CONSIDER IN CONNECTION WITH OUR
OFFER, INCLUDING THE FOLLOWING:


         o        We determined the offer price of $478.00 per unit without any
                  arms-length negotiations. Accordingly, our offer price may not
                  reflect the fair market value of your units.

         o        As of June 30, 1998, your general partner (which is our
                  subsidiary) estimated the net asset value of your units based
                  on recent appraisals, to be $682.00 per unit and an affiliate
                  of your general partner estimated the net liquidation value of
                  your units to be $684.33 per unit. In 1999, your partnership
                  sold one property for $1,500,000, of which $286,760 was used
                  to pay indebtedness and $1,023,197 was distributed to the
                  partners.

         o        Although your partnership's agreement of limited partnership
                  provides for termination in the year 2024, the prospectus
                  pursuant to which the units were sold in 1984 indicated that
                  the properties owned by your partnership might be sold within
                  7 to 12 years of their acquisition if conditions permitted.

                                                        (continued on next page)

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

     If you desire to accept our offer, you should complete and sign the
enclosed acknowledgment and agreement in accordance with the instructions
thereto and the letter of transmittal and instructions thereto which are Annex I
to this Supplement and mail or deliver the signed acknowledgment and agreement
and any other required documents to River Oaks Partnership Services, Inc., which
is acting as Information Agent in connection with our offer, at one of its
addresses set forth on the back cover of this Supplement. You only need to
return the acknowledgment and agreement. QUESTIONS AND REQUESTS FOR ASSISTANCE
OR FOR ADDITIONAL COPIES OF THE OFFER TO PURCHASE, THIS SUPPLEMENT OR THE
ACKNOWLEDGMENT AND AGREEMENT MAY ALSO BE DIRECTED TO THE INFORMATION AGENT AT
(888) 349-2005.

                                  June 12, 2000

   2

(Continued  from prior page)


         o        Your general partner and the property manager of the property
                  are subsidiaries of ours and, therefore, the general partner
                  has substantial conflicts of interest with respect to our
                  offer.

         o        We are making this offer with a view to making a profit and,
                  therefore, there is a conflict between our desire to purchase
                  your units at a low price and your desire to sell your units
                  at a high price.

         o        Continuation of your partnership will result in our affiliates
                  continuing to receive management fees from your partnership.
                  Such fees would not be payable if your partnership was
                  liquidated.

         o        It is possible that we may conduct a future offer at a higher
                  price.

         o        For any units that we acquire from you, you will not receive
                  any future distributions from operating cash flow of your
                  partnership or upon a sale or refinancing of property owned by
                  your partnership.

         o        If we acquire a substantial number of units, we will increase
                  our ability to influence voting decisions with respect to your
                  partnership and may control such voting decisions, including
                  but not limited to the removal of the general partner, most
                  amendments to the partnership agreement and the sale of all or
                  substantially all of your partnership's assets.


                                       2
   3

                                  INTRODUCTION

     On May 15, 2000, we commenced an offer to acquire all of the outstanding
units of your partnership, in exchange for $478.00 in cash per unit, net to the
seller, without interest, less the amount of distributions, if any, made by your
partnership in respect of any unit from May 15, 2000 until the expiration date.
If units are validly tendered and not properly withdrawn prior to the expiration
date and the purchase of all such units would result in there being less than
320 unitholders, we will purchase only 99% of the total number of units so
tendered by each limited partner. Our offer is made upon the terms and subject
to the conditions set forth in the Offer to Purchase, dated May 15, 2000, this
Supplement and in the accompanying acknowledgment and agreement.

     We will pay any transfer fees imposed for the transfer of units by your
partnership. However, you will have to pay any governmental transfer taxes that
apply to your sale. You will also have to pay any fees or commissions imposed by
your broker in assisting you to tender your units, or by any custodian or other
trustee of any Individual Retirement Account or benefit plan which is the owner
of record of your units. Although the fees charged for transferring units from
an Individual Retirement Account vary, such fees are typically $25-$50 per
transaction.

     We have retained River Oaks Partnership Services, Inc. to act as the
Information Agent in connection with our offer. We will pay all charges and
expenses in connection with the services of the Information Agent. The offer is
not conditioned on any minimum number of the units being tendered. However,
certain other conditions do apply. See "The Offer - Section 17. Conditions of
the Offer," in the Offer to Purchase. Under no circumstances will we be required
to accept any unit if the transfer of that unit to us would be prohibited by the
agreement of limited partnership of your partnership.

     We have extended the expiration date of our offer to 5:00 p.m., New York
City time, on June 26, 2000. If you desire to accept our offer, you must
complete and sign the acknowledgment and agreement in accordance with the
instructions contained therein and the letter of transmittal and the
instructions thereto, Appendix I to this Supplement, and forward or hand deliver
the enclosed acknowledgment and agreement, together with any other required
documents, to the Information Agent. If you have already tendered your units in
accordance with the original letter of transmittal, Appendix II to the Offer to
Purchase, and the original acknowledgment and agreement, you need not take any
further action to continue to tender your units. You may withdraw your tender of
units pursuant to the offer at any time prior to the expiration date of our
offer and, if we have not accepted such units for payment, on or after July 17,
2000.

     We expressly reserve the right, in our reasonable discretion, at any time
and from time to time, to extend the period of time during which our offer is
open and thereby delay acceptance for payment of, and the payment for, any unit.
Notice of any such extension will promptly be disseminated to you in a manner
reasonably designed to inform you of such change. Further, any extension may be
followed by a press release or public announcement which will be issued no later
than 9:00 a.m., New York City time, on the next business day after the scheduled
expiration date of our offer, in accordance with Rule 14e-1(d) under the
Securities Exchange Act of 1934.

                             ADDITIONAL INFORMATION

Our offer is hereby supplemented and amended as follows:

1.   The penultimate sentence of the last paragraph under "Introduction" is
     hereby amended to read as follows:

     As of March 31, 2000, AIMCO owned or controlled, held an equity interest in
or managed 363,462 apartment units in 1,942 properties located in 48 states, the
District of Columbia and Puerto Rico.


2.   The information contained in "The Offer-Section 8. Information Concerning
     Us and Certain of Our Affiliates" in the first paragraph under "General" is
     hereby amended to read as follows:

         GENERAL. We are AIMCO Properties, L.P., a Delaware limited partnership.
Together with our subsidiaries, we conduct substantially all of the operations
of Apartment Investment and Management Company, a Maryland corporation
("AIMCO"). AIMCO is a real estate investment trust that owns and manages
multifamily apartment properties throughout the United States. AIMCO's Class A
Common Stock is listed and traded on the New York Stock Exchange under the
symbol "AIV." As of March 31, 2000, we owned or managed 352,519 apartment units
in 1,834 properties located in 48 states, the District of Columbia and Puerto
Rico. Based on apartment unit data compiled as of January 1, 1999, by the
National Multi Housing Council, we believe that we are the largest owner and
manager of multi-family apartment properties in the United States. As of March
31, 2000, we:

     -   owned or controlled 121,449 units in 439 apartment properties;

     -   held an equity interest in 115,951 units in 671 apartment properties;
         and


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   4

     -   managed 115,119 units in 724 apartment properties for third party
         owners and affiliates, of which 53,627 units have management agreements
         that are cancellable in 30 days and 61,492 have management agreements
         in excess of one year.

3.   The information contained in "The Offer-Section 8. Information Concerning
     Us and Certain of Our Affiliates" under "Summary Selected Financial
     Information of AIMCO Properties, L.P." is hereby amended to read as
     follows:

          SUMMARY SELECTED FINANCIAL INFORMATION OF AIMCO PROPERTIES, L.P. The
historical summary financial data for AIMCO Properties, L.P. for the three
months ended March 31, 2000 and 1999 is unaudited. The historical summary
financial data for AIMCO Properties, L.P. for the years ended December 31, 1999
and 1998, is based on audited financial statements. This information should be
read in conjunction with such financial statements, including the notes thereto,
and "Management's Discussion and Analysis of Financial Condition and Results of
Operations of the AIMCO Operating Partnership" included in the AIMCO Operating
Partnership's Form 10-K for the year ended December 31, 1999 and Form 10-Q for
the quarter ended March 31, 2000.




                                                                  THREE MONTHS ENDED                       YEAR ENDED
                                                                        MARCH 31,                         DECEMBER 31,
                                                               ---------------------------         ---------------------------
                                                                 2000              1999               1999            1998
                                                               ---------         ---------         ---------         ---------
                                                                        (DOLLARS IN THOUSANDS, EXCEPT PER UNIT DATA)
                                                                                                         
OPERATING DATA:
RENTAL PROPERTY OPERATIONS:
  Rental and other property revenue ...................        $ 224,320         $ 110,552         $ 531,883         $ 373,963
  Property operating expenses .........................          (90,751)          (42,436)         (213,959)         (145,966)
  Owned property management expenses ..................           (7,816)           (3,395)          (15,322)          (10,882)
  Depreciation ........................................          (64,690)          (26,616)         (131,257)          (83,908)
                                                               ---------         ---------         ---------         ---------
  Income from property operations .....................          (61,063)          (38,105)          171,345           133,207
                                                               ---------         ---------         ---------         ---------
SERVICE COMPANY BUSINESS:
  Management fees and other income ....................           13,310             7,978            42,877            22,675
  Management and other expenses .......................           (4,957)           (8,902)          (25,470)          (16,960)
  Income from service company business ................            8,353              (924)           17,407             5,715
                                                               ---------         ---------         ---------         ---------
  General and administrative expenses .................           (3,211)           (2,594)          (12,016)          (10,336)
  Interest expense ....................................          (56,224)          (30,360)         (139,124)          (88,208)
  Interest income .....................................           13,004             9,828            62,183            28,170
  Equity in earnings (losses) of unconsolidated
      subsidiaries (a) ................................            2,445             2,695            (2,588)           (2,665)
  Equity in earnings (losses) of unconsolidated
      real estate partnerships (b) ....................            3,215             2,790            (2,400)           12,009
  Loss from IPLP exchange and assumption ..............               --              (684)             (684)           (2,648)
  Minority interest ...................................           (3,721)           (2,065)           (5,788)           (1,868)
  Amortization of goodwill ............................           (1,575)           (1,942)           (5,860)           (8,735)
  Income from operations ..............................           23,349            14,849            82,475            64,641
  Gain on disposition of properties ...................            5,105                15            (1,785)            4,287
  Income before extraordinary item ....................           28,454            14,864            80,690            68,928
                                                               ---------         ---------         ---------         ---------
  Extraordinary item -- early extinguishment
      of debt .........................................               --                --                --                --
  Net income ..........................................        $  28,454         $  14,864         $  80,690         $  68,928
                                                               =========         =========         =========         =========



                                       4
   5



                                                                   THREE MONTHS ENDED                        YEAR ENDED
                                                                         MARCH 31,                          DECEMBER 31,
                                                               ----------------------------         -----------------------------
                                                                   2000            1999                1999              1998
                                                               -----------      -----------         -----------       -----------
                                                                           (DOLLARS IN THOUSANDS, EXCEPT PER UNIT DATA)
                                                                                                        
BALANCE SHEET INFORMATION
(END OF PERIOD):
   Real estate, before accumulated depreciation .......        $ 4,995,886      $ 2,852,506         $ 4,508,535       $ 2,743,865
   Real estate, net of accumulated depreciation .......          4,507,911        2,591,753           4,092,543         2,515,710
   Total assets .......................................          6,017,807        4,291,931           5,684,251         4,186,764
   Total mortgages and notes payable ..................          3,007,050        1,608,895           2,584,289         1,601,730
   Redeemable Partnership Units .......................                 --               --                  --                --
   Partnership-obligated mandatory redeemable
      convertible preferred securities of a
      subsidiary trust ................................            149,500          149,500             149,500           149,500
   Partners' Capital ..................................          2,497,747        2,289,245           2,486,889         2,153,335

   OTHER INFORMATION:
   Total owned or controlled properties (end of
      period) .........................................                439              240                 373               234
   Total owned or controlled apartment units
      (end  of period) ................................            121,449           63,069             106,148            61,672
   Total equity apartment units (end of period) .......            115,951          168,817             133,113           171,657
   Units under management (end of period) .............            115,119          141,523             124,201           146,034
   Basic earnings per Common OP Unit ..................        $      0.17      $      0.03         $      0.39       $      0.80
   Diluted earnings per Common OP Unit ................        $      0.17      $      0.03         $      0.38       $      0.78
   Distributions paid per Common OP Unit ..............        $      0.70      $    0.6250         $      2.50       $      2.25
   Cash flows provided by operating activities ........        $    69,556      $    65,545         $   254,380       $   144,152
   Cash flows used in investing activities ............           (108,704)         (25,667)           (243,078)         (342,541)
   Cash flows provided by (used in)
      financing activities ............................             74,433          (54,149)             37,470           214,133
   Funds from operations (c) ..........................        $    98,120      $    65,299         $   320,434       $   193,830
   Weighted average number of Common OP
      Units outstanding ...............................             73,484           64,923              78,531            56,567


- ----------

(a)   Represents AIMCO Properties, L.P. equity in earnings of unconsolidated
      subsidiaries.

(b)   Represents AIMCO Properties, L.P.'s share of earnings from partnerships
      that own 115,951 apartment units at March 31, 2000 in which partnerships
      AIMCO Properties, L.P. owns an equity interest.

(c)   AIMCO Properties, L.P.'s management believes that the presentation of
      funds from operations or "FFO", when considered with the financial data
      determined in accordance with generally accepted accounting principles,
      provides a useful measure of performance. However, FFO does not represent
      cash flow and is not necessarily indicative of cash flow or liquidity
      available to AIMCO Properties, L.P., nor should it be considered as an
      alternative to net income or as an indicator of operating performance. The
      Board of Governors of the National Association of Real Estate Investment
      Trusts ("NAREIT") defines FFO as net income (loss), computed in accordance
      with generally accepted accounting principles, excluding gains and losses
      from debt restructuring and sales of property, plus real estate related
      depreciation and amortization (excluding amortization of financing costs),
      and after adjustments for unconsolidated partnerships and joint ventures.
      AIMCO Properties, L.P. calculates FFO based on the NAREIT definition, as
      adjusted for the amortization of goodwill, the non-cash deferred portion
      of the income tax provision for unconsolidated subsidiaries and less the
      payments of dividends on preferred limited partnership interests. AIMCO
      Properties, L.P.'s management believes that presentation of FFO provides
      investors with industry-accepted measurements which help facilitate an
      understanding of its ability to make required dividend payments, capital
      expenditures and principal payments on its debt. There can be no assurance
      that AIMCO Properties, L.P.'s basis of computing FFO is comparable with
      that of other REITS.


                                       5
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      The following is a reconciliation of net income to funds from operations:




                                                               THREE MONTHS ENDED                     YEAR ENDED
                                                                   MARCH 31,                         DECEMBER 31,
                                                          ---------------------------         ---------------------------
                                                            2000              1999               1999           1998
                                                          ---------         ---------         ---------         ---------
                                                                                  (IN THOUSANDS)
                                                                                                    
Net income .......................................        $  28,454         $  14,864         $  80,690         $  68,928
Extraordinary item ...............................               --                --                --                --
Gain loss on disposition of property .............           (5,105)              (15)            1,785            (4,287)
Real estate depreciation, net of minority
    interests ....................................           56,976            25,095           121,084            79,869
Real estate depreciation related to
    unconsolidated entities ......................           18,960            21,105           104,754            34,765
Amortization .....................................            2,083            12,999            36,731            26,177
Deferred taxes ...................................              852             2,456             1,763             9,215
Expenses associated with convertible
    preferred securities .........................               --                --             6,892                --
                                                          ---------         ---------         ---------         ---------
Preferred unit distributions .....................           (4,101)          (11,205)          (33,265)          (20,837)
                                                          ---------         ---------         ---------         ---------
Funds from operations ............................        $  98,120         $  65,299         $ 320,434         $ 193,830
                                                          ---------         ---------         ---------         ---------



        As of March 31, 2000, AIMCO Properties, L.P. had a net tangible book
value of $61.3 per Common OP Unit.

4.   The information contained in "The Offer-Section 8. Information Concerning
     Us and Certain of Our Affiliates" in the first paragraph under "Ratio of
     Earnings to Fixed Charges of AIMCO Properties, L.P." is hereby amended to
     read as follows:

     RATIOS OF EARNINGS TO FIXED CHARGES OF AIMCO PROPERTIES, L.P. The following
table shows for the AIMCO Properties, L.P. (i) the ratio of income to fixed
charges and (ii) the ratio of income to fixed charges and preferred unit
distributions.




                                                             For the Three             For the Year
                                                             Months Ended                 Ended
                                                              March 31,               December 31,
                                                          ------------------        ------------------
                                                           2000         1999         1999         1998
                                                          -----        -----        -----        -----
                                                                                     
Ratio of earnings to fixed charges (1) ............       1.7:1        1.9:1        2.4:1        1.6:1

Ratio of earnings to  combined fixed charges
and preferred unit distributions (2) ..............       1.3:1        1.3:1        1.7:1        1.7:1



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

(1)   Our ratio of earnings to fixed charges was computed by dividing earnings
      by fixed charges. For this purpose, "earnings" consists of income before
      minority interests (which includes equity in earnings of unconsolidated
      subsidiaries and partnerships only to the extent of dividends received)
      plus fixed charges (other than any interest which has been capitalized),
      and "fixed charges" consists of interest expense (including amortization
      of loan costs) and interest which has been capitalized.

(2)   Our ratio of earnings to combined fixed charges and preferred unit
      distributions was computed by dividing earnings by the total of fixed
      charges and preferred unit distributions. For this purpose, "earnings"
      consists of income before minority interests (which includes equity in
      earnings of unconsolidated subsidiaries and partnerships only to the
      extent of dividends received) plus fixed charges (other than any interest
      which has been capitalized), "fixed charges" consists of interest expense
      (including amortization of loan costs) and interest which has been
      capitalized, and "preferred unit distributions" consists of the amount of
      pre-tax earnings that would be required to cover preferred unit
      distributions requirements.


                                       6
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5.   The last sentence of the third paragraph under "The Offer-Section 9.
     Background and Reasons for the Offer-General" is hereby amended to read as
     follows:

      As of the date of this offering, AIMCO Properties, L.P. has made offers to
approximately 65 of the Insignia Partnerships, including your partnership.

6.   The information under The "The Offer-Section 7. Effects of the Offer -
     Effect on Trading Market; Registration under 12(g) of the Exchange Act" is
     hereby amended to read as follows:

     Your partnership currently has 15,698 unitholders of record.

7.   The information under "The Offer - Section 13. Certain Information
     Concerning Your Partnership-Investment Objectives and Policies; Sales or
     Financing of Investments" and "The Offer - Section 13. Certain Information
     Concerning Your Partnership - Capital Replacements" regarding the amount of
     the capital budgets for 2000 is the total initial capital expenditures
     intended to be made for such properties following our acquisition of the
     general partner, and not just the amount for 2000.

8.   The information under "The Offer-Section 13. Certain Information Concerning
     Your Partnership-Financial Data" is hereby amended to read as follows:

     FINANCIAL DATA. The selected financial information of your partnership set
forth below for the years ended December 31, 1999 and 1998 is based on audited
financial statements. The selected financial information set forth below for the
three months ended March 31, 2000 and 1999 is based on unaudited financial
statements. This information should be read in conjunction with such financial
statements, including notes thereto, and "Management's Discussion and Analysis
of Financial Condition and Results of Operations of Your Partnership" in the
Annual Report on Form 10-KSB of your partnership for the year ended December
31, 1999, and the Quarterly Report on Form 10-QSB for the quarter ended March
31, 2000.

                HCW PENSION REAL ESTATE FUND LIMITED PARTNERSHIP
                      (IN THOUSANDS, EXCEPT PER UNIT DATA)




                                                                  FOR THE THREE MONTHS              FOR THE YEAR ENDED
                                                                     ENDED MARCH 31,                    DECEMBER 31,
                                                               --------------------------        ---------------------------
                                                                  2000             1999             1999              1998
                                                               ---------        ---------        ---------         ---------
                                                                                                       
OPERATING DATA:
  Total revenues ......................................        $     498        $     470        $   1,824         $   2,799
  Net income (Loss) ...................................              119               49           (3,336)               52
  Net income (Loss) per limited partnership unit ......             7.45             3.06          (209.33)              325
  Distributions per limited partnership unit ..........           107.47               --             1.53             24.97





                                                                       MARCH 31,                        DECEMBER 31,
                                                               -------------------------         -------------------------
                                                                 2000             1999             1999             1998
                                                               --------         --------         --------         --------
                                                                                                      
BALANCE SHEET DATA:
  Cash and cash equivalents ...........................        $    976         $  1,081         $  2,196         $  1,354
  Real estate, net of accumulated depreciation ........           5,464           10,124            5,593           10,232
  Total assets ........................................           6,645           11,744            8,260           12,143
  Notes payable .......................................              --               --               --               --
  General Partners' Capital (Deficit) .................            (121)             (58)            (110)             (58)
  Limited Partners' Capital (Deficit) .................           6,214           11,142            7,784           11,142
  Partners' Capital (Deficit) .........................           6,093           11,084            7,674           11,084
  Total distributions .................................          (1,700)              --              (25)             400
  Net increase (Decrease) in Cash
    and cash equivalents ..............................          (1,220)            (273)             842             (273)
  Net cash provided by operating
    activities ........................................             489              199              679              199



                                       7
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PRICES ON SECONDARY MARKET

         Secondary market sales information is not a reliable measure of value
because of the limited amount of any known trades. At present, privately
negotiated sales and sales through intermediaries are the only means which may
be available to a limited partner to liquidate an investment in units (other
than our offer) because the units are not listed or traded on any exchange or
quoted on NASDAQ, on the Electronic Bulletin Board, or in "pink sheets."
Secondary sales activity for the units, including privately negotiated sales,
has been limited and sporadic.

         Prior to our acquisition of the general partner, the general partner
received from time to time information on the prices at which units were sold;
however, it did not regularly receive or maintain information regarding the bid
or asked quotations of secondary market makers, if any. The prices in the table
below are based solely on information provided to the general partner by sellers
and buyers of units transferred in sale transactions (i.e., excluding
transactions believed to result from the death of a limited partner, rollover to
an IRA account, establishment of a trust, trustee to trustee transfers,
termination of a benefit plan, distributions from a qualified or nonqualified
plan, uniform gifts to minors, abandonment of units or similar non-sale
transactions). The transfer paperwork submitted to the general partner often did
not include the requested price information or contained conflicting information
as to the actual sales price. Sale prices not reported or disclosed could exceed
the reported prices. Set forth in the table below are the high and low sales
prices of units for the quarterly periods from January 1, 1998 to September 30,
1998, as reported by your general partner:

      SALES PRICES OF PARTNERSHIP UNITS, AS REPORTED BY THE GENERAL PARTNER



                                                           HIGH            LOW
                                                          -------        -------
                                                                   
Fiscal Year Ended December 31, 1998:
  Third Quarter ..................................        $551.00        $356.00
  Second Quarter .................................         495.00          43.00
  First Quarter ..................................         454.00         200.00


10. Annex II is hereby amended to add the following:

         In June 2000, James N. Bailey was elected to the Board of Directors of
AIMCO. In 1973, Mr. Bailey co-founded Cambridge Associates, Inc., which is an
investment consulting firm for nonprofit institutions and wealthy family groups.
He is also co-founder, treasurer and director of The Plymouth Rock Company,
Direct Response Corporation and Homeowners's Direct Corporation, all United
States personal lines insurance company. He received his MBA and JD degrees in
1973 from Harvard Business School and Harvard Law School.


                                       8