SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                  SCHEDULE TO/A

               TENDER OFFER STATEMENT PURSUANT TO SECTION 14(D)(1)
                     OF THE SECURITIES EXCHANGE ACT OF 1934
                                 AMENDMENT NO. 1

                            (NAME OF SUBJECT COMPANY)

                       URBAN IMPROVEMENT FUND LIMITED 1973
                        A CALIFORNIA LIMITED PARTNERSHIP

                             AT $225.00 NET PER UNIT

                                       BY

               EQUITY RESOURCE LEXINGTON FUND LIMITED PARTNERSHIP,
                       A MASSACHUSETTS LIMITED PARTNERSHIP
                          EQUITY RESOURCES GROUP, INC.,
                           A MASSACHUSETTS CORPORATION

                              EGGERT DAGBJARTSSON,
                                  AN INDIVIDUAL
                            LIMITED PARTNERSHIP UNITS

                  Eggert Dagbjartsson, Executive Vice President
                          Equity Resources Group, Inc.
                                 14 Story Street
                               Cambridge, MA 02138
                                 (617) 876-4800

                            CALCULATION OF FILING FEE



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

                         TRANSACTION VALUATION*                                  AMOUNT OF FILING FEE
                                $531,450                                                $106.29

- -------------------------------------------------------------------------- ----------------------------------
                                                                                
*        FOR PURPOSES OF CALCULATING THE FILING FEE ONLY. THIS CALCULATION
         ASSUMES THE PURCHASE OF 2,362 UNITS AT A PURCHASE PRICE OF $225.00 PER
         UNIT IN THE PARTNERSHIP.

[X]      CHECK BOX IF ANY PART OF THE FEE IS OFFSET AS PROVIDED BY RULE
         0-11(A)(2) AND IDENTIFY THE FILING WITH WHICH THE OFFSETTING FEE WAS
         PREVIOUSLY PAID. IDENTIFY THE PREVIOUS FILING BY REGISTRATION STATEMENT
         NUMBER, OR THE FORM OR SCHEDULE AND THE DATE OF ITS FILING.
- ----------------------------------- -------------------------------------- ------------- --------------------

         AMOUNT PREVIOUSLY PAID:    $94.50                                 FILING        Equity Resource
         FORM OF REGISTRATION NO.:  SCHEDULE TO                            PARTY:        Lexington Fund

                                                                                         Limited

                                                                                         PARTNERSHIP, JUNE
                                                                           DATE FILED:   7, 2001

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





                                 AMENDMENT NO. 1

         This Amendment No. 1 amends and supplements the Tender Offer Statement
on Schedule TO originally filed with the Securities and Exchange Commission on
June 7, 2001 (the "Schedule TO") by Equity Resources Lexington Fund Limited
Partnership, a Massachusetts limited partnership, Equity Resources Group, Inc.,
a Massachusetts corporation, and Eggert Dagbjartsson, an individual (together,
the "Purchaser") to purchase 2,362 units (the "Units") of limited partnership
interests in Urban Improvement Fund Limited 1973, a California limited
partnership (the "Partnership"), at $200.00 for each Unit, net to the seller in
cash, without interest, less the amount of any distributions declared or paid
from any source by the Partnership with respect to the Units after June 7, 2001
(without regard to the record date), upon the terms and subject to the
conditions set forth in this Offer to Purchase (the "Offer to Purchase") and in
the Agreement of Sale, as each may be supplemented or amended from time to time
(which together constitute the "Offer"). The information contained in the Offer
to Purchase is incorporated herein by reference. Capitalized terms used and not
defined herein shall have the meanings ascribed to such terms in the Offer to
Purchase.

         ITEM 4--TERMS OF THE TRANSACTIOn

         Item 4 is hereby amended by the following:

                  The purchase price for the Units has been increased to $225
                  per Unit, net to the seller in cash, less the amount of any
                  distributions declared or paid from any source by the
                  Partnership with respect to the Units after June 7, 2001,
                  unless a limited partner was not entitled to receive that
                  distribution.

         ITEM 7--SOURCE AND AMOUNT OF FUNDS OR OTHER CONSIDERATIOn

                  Item 7 is hereby amended by the following:

                  The total amount of funds necessary to purchase 2,362 Units,
                  if tendered pursuant to the Offer has been increased to
                  $531,450.

         ITEM 11--ADDITIONAL INFORMATIOn

         Item 11 is hereby amended to add the following:

                  The information set forth in the letter to limited partners of
                  the Partnership attached hereto as Exhibit (a)(5) and the
                  press release attached hereto as Exhibit (a)(6) is
                  incorporated by reference herein.

         ITEM 12--EXHIBITs

                  Item 12 is hereby amended by adding the following exhibits,
each of which is attached:

                  (a)(5)   Letter, dated June 19, 2001, from the Purchaser to
                           the limited partners of the Partnership

                  (a)(6)   Press Release dated June 19, 2001




                                   SIGNATURES

            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: June 19, 2001        Equity Resource Lexington Fund Limited Partnership,
                            a Massachusetts limited partnership

                            By: /s/ EGGERT DAGBJARTSSON
                                ------------------------------------
                                    Eggert Dagbjartsson
                                    General Partner

                            Equity Resources Group, Inc.
                            A Massachusetts Corporation

                            By: /s/ EGGERT DAGBJARTSSON
                                ------------------------------------
                                    Eggert Dagbjartsson
                                    Executive Vice President

                            Eggert Dagbjartsson

                            By: /s/ EGGERT DAGBJARTSSON
                                ------------------------------------
                                    Eggert Dagbjartsson
                                    Eggert Dagbjartsson





                                  EXHIBIT INDEX

EXHIBIT NO.               DESCRIPTION

(a)(1) -                  Offer to Purchase, dated June 7, 2001*
(a)(2) -                  Transmittal letter, dated June 7, 2001*
(a)(3) -                  Agreement of Sale*
(a)(4)                    Summary Advertisement*
(a)(5)--                  Letter, dated June 19, 2001, from the
                          Purchaser to the limited partners
                          of the Partnership
(a)(6)--                  Press release, dated June 19, 2001
(b) -                     Not applicable.
(c) -                     Not applicable.
(d)(1)-                   Not applicable.
(e) -                     Not applicable.
(f) -                     Not applicable.
(g)                       Not applicable
(h)                       Not applicable.


* Previously filed