UNITED STATES
                      SECURITIES AND EXCHANGE COMMISSION

                            Washington, D.C.  20549


                                   FORM 8-K


                                CURRENT REPORT

                      Pursuant to Section 13 or 15(d) of

                      The Securities Exchange Act of 1934


                                 MAY 20, 1997
                               (Date of Report)


                       ERP OPERATING LIMITED PARTNERSHIP
            (Exact Name of Registrant as Specified in its Charter)



                                    0-24920
                             (Commission File No.)


           Illinois                                             36-3894853
(State or Other Jurisdiction                                 (I.R.S. Employer
     of Incorporation)                                       Identification No.)



Two North Riverside Plaza, Chicago, Illinois                            60606
(Address of Principal Executive Offices)                             (Zip Code)




                                (312) 474-1300
             (Registrant's Telephone Number, Including Area Code)

 
ITEM 2.  ACQUISITION OR DISPOSITION OF ASSETS


ACQUISITIONS

ERP Operating Limited Partnership and its subsidiaries (the "Operating
Partnership") has acquired 18 multifamily properties during the period from
January 2, 1997 through May 20, 1997. The cash portion of these transactions was
financed primarily through net proceeds received from the December 1996 Common
Share Offerings and the March 1997 Common Share Offerings. Descriptions of the
acquired properties are as follows. The Operating Partnership has also made
commitments to acquire an additional seven properties which are discussed in
Item 5 (the "1997 Probable Properties").

Capitalized terms not defined herein are used as defined in the Operating
Partnership's Annual Report on Form 10-K for the year ended December 31, 1996
and the Operating Partnership's Quarterly Report on Form 10-Q for the three
months ended March 31, 1997.

TOWN CENTER APARTMENTS, KINGWOOD, TEXAS

On January 2, 1997, the Operating Partnership acquired a multifamily property
located in Kingwood, Texas ("Town Center"). Town Center was approximately 95%
occupied as of May 1, 1997. The property consists of 258 units in 14 residential
buildings and one leasing office/clubhouse on approximately 10 acres. Amenities
include a clubhouse, swimming pool, picnic area with barbecue grills, covered
parking, 50 garages, full-size washers and dryers in all units, microwaves and
frost-free refrigerators in all units and fireplaces in select units. The
property was constructed in 1994. Property management services are being
provided by the Operating Partnership.

Terms of Purchase

Town Center was purchased from an unaffiliated third party for approximately
$12.8 million.

HARBORVIEW APARTMENTS, SAN PEDRO, CALIFORNIA

On January 21, 1997, the Operating Partnership acquired a multifamily property
located in San Pedro, California ("Harborview"). Harborview was approximately
100% occupied as of May 1, 1997. The property consists of 160 units in 23
residential buildings on approximately seven acres. Amenities include a
community center, swimming pool, access gates, covered parking, washer/dryer in
each unit and fireplaces in each unit. The property was constructed in 1985.
Property management services are being provided by the Operating Partnership
since the date of acquisition.

Terms of Purchase

Harborview was purchased from an unaffiliated third party for approximately $19
million, which included the assumption of mortgage indebtedness of approximately
$12.7 million.

                                       2

 
THE CARDINAL APARTMENTS, GREENSBORO, NORTH CAROLINA

On January 31, 1997, the Operating Partnership acquired a multifamily property
located in Greensboro, North Carolina ("The Cardinal"). The Cardinal was
approximately 93% occupied as of May 1, 1997. The property consists of 256 units
in 11 three story residential buildings on approximately 17 acres. Amenities
include a clubhouse, swimming pool, fitness room, tennis courts, washer/dryer
hookups, microwaves, ceiling fans and mini-blinds. The property was constructed
in 1994. Property management services are being provided by the Operating
Partnership since the date of acquisition.

Terms of Purchase

The Cardinal was purchased from an unaffiliated third party for approximately
$12.8 million, which included the assumption of mortgage indebtedness of
approximately $7.5 million.

TRAILS AT DOMINION APARTMENTS, HOUSTON, TEXAS

On February 12, 1997, the Operating Partnership acquired a multifamily property
located in Houston, Texas ("Trails at Dominion"). Trails at Dominion was
approximately 91% occupied as of May 1, 1997. The property consists of 843 units
in 44 two and three story residential buildings and three one-story
office/clubhouses on approximately 55 acres. Amenities include three clubhouses,
a fitness center, five swimming pools, three spas, four tennis courts, a sand
volleyball court, fireplaces in select units, washer/dryer connections in every
unit, washer/dryers in select units and microwaves in every unit. The property
was constructed in phases between 1992 and 1995. Property management services
are being provided by the Operating Partnership since the date of acquisition.

Terms of Purchase

Trails at Dominion was purchased from an unaffiliated third party for
approximately $38.3 million, which included the assumption of mortgage
indebtedness of approximately $26.2 million.

DARTMOUTH WOODS APARTMENTS, LAKEWOOD, COLORADO

On February 25, 1997, the Operating Partnership acquired a multifamily property
located in Lakewood, Colorado ("Dartmouth Woods"). Dartmouth Woods was
approximately 96% occupied as of May 1, 1997. The property consists of 201 units
in six two, three and four story residential buildings on approximately 13
acres. Amenities include a clubhouse with fitness center, swimming pool,
jacuzzi, garages and covered parking, microwaves in every unit, washer/dryer
hookups in every unit and gas fireplaces in some units. The property was
constructed in 1990. Property management services are being provided by the
Operating Partnership since the date of acquisition.

Terms of Purchase

Dartmouth Woods was purchased from an unaffiliated third party for approximately
$12.4 million, which included the assumption of mortgage indebtedness of
approximately $4.4 million.

                                       3

 
RINCON APARTMENTS, HOUSTON, TEXAS

On February 28, 1997, the Operating Partnership acquired a multifamily property
located in Houston, Texas ("Rincon"). Rincon was approximately 100% occupied as
of May 1, 1997. The property consists of 288 units in nine three story
residential buildings, one two story clubhouse and a four-level parking
structure on approximately five acres. Amenities include a clubhouse with
business center, fitness center, spa, swimming pool, barbecue grills,
washer/dryers in all units, crown molding, microwaves and lockable storage
closets. The property was constructed in 1996. Property management services are
being provided by the Operating Partnership since the date of acquisition.

Terms of Purchase

Rincon was purchased from an unaffiliated third party for approximately $20.9
million.

WATERFORD AT THE LAKES APARTMENTS, KENT, WASHINGTON

On February 28, 1997, the Operating Partnership acquired a multifamily property
located in Kent, Washington ("Waterford at the Lakes"). Waterford at the Lakes
was approximately 97% occupied as of May 1, 1997. The property consists of 344
units in 35 two and three story residential buildings on approximately 18 acres.
Amenities include a clubhouse, two swimming pools, indoor/outdoor spa, tanning
salon, daycare center, playground, fitness room and washer/dryers in each unit.
The property was constructed in 1990. Property management services are being
provided by the Operating Partnership since the date of acquisition.

Terms of Purchase

Waterford at the Lakes was purchased from an unaffiliated third party for
approximately $18.9 million.

JUNIPERS OF YARMOUTH APARTMENTS, YARMOUTH, MAINE

On March 17, 1997, the Operating Partnership acquired a multifamily property
located in Yarmouth, Maine ("Junipers of Yarmouth"). Junipers of Yarmouth was
approximately 99% occupied as of May 1, 1997. The property consists of 225 units
in 13 two, three and four story residential buildings and one office/clubhouse
on approximately nine acres. Amenities include a clubhouse, leasing office,
swimming pool and fitness center. The property was constructed in 1970. Property
management services are being provided by the Operating Partnership since the
date of acquisition.

Terms of Purchase

Junipers of Yarmouth was purchased from an unaffiliated third party for
approximately $9.2 million.

                                       4

 
LINCOLN HARBOUR APARTMENTS, FT. LAUDERDALE, FLORIDA

On March 20, 1997, the Operating Partnership acquired a multifamily property
located in Ft. Lauderdale, Florida ("Lincoln Harbour"). Lincoln Harbour was
approximately 95% occupied as of May 1, 1997. The property consists of 324 units
in 15 three story residential buildings on approximately 14 acres. Amenities
include a clubhouse, swimming pool, fitness center, basketball court, two indoor
racquetball courts and boat dockage. The property was constructed in 1989.
Property management services are being provided by the Operating Partnership
since the date of acquisition.

Terms of Purchase

Lincoln Harbour was purchased from an unaffiliated third party for approximately
$22 million, which included the assumption of mortgage indebtedness of $10
million.

SEDONA RIDGE APARTMENTS, PHOENIX, ARIZONA

On March 24, 1997, the Operating Partnership acquired a multifamily property
located in Phoenix, Arizona ("Sedona Ridge"). Sedona Ridge was approximately 94%
occupied as of May 1, 1997. The property consists of 250 units in 16 two story
residential buildings on approximately 17 acres. Amenities include two swimming
pools, two whirlpools, indoor racquetball/walleyball court, car service center,
tennis court, basketball court and sand volleyball court. The property was
constructed in 1988. Property management services are being provided by the
Operating Partnership.

Terms of Purchase

Sedona Ridge was purchased from an affiliate of the Operating Partnership,
Zell/Merrill Lynch Real Estate Opportunity Partners Limited Partnership
("Zell/Merrill I"), for approximately $15.2 million.

KNIGHT'S CASTLE APARTMENTS, WILSONVILLE, OREGON

On March 28, 1997, the Operating Partnership acquired a multifamily property
located in Wilsonville, Oregon ("Knight's Castle"). Knight's Castle was
approximately 93% occupied as of May 1, 1997. The property consists of 296 units
in 21 two and three story residential buildings on approximately 22 acres.
Amenities include a clubhouse, fitness center, outdoor pool, whirlpool spa,
built-in closet organizer, patio/balconies, microwaves, dishwashers, free basic
cable, washer/dryers and reserved covered parking. The property was constructed
in 1991. Property management services are being provided by the Operating
Partnership since the date of acquisition.

Terms of Purchase

Knight's Castle was purchased from an unaffiliated third party for $15 million.

                                       5

 
CLUB AT THE GREEN APARTMENTS, BEAVERTON, OREGON

On March 28, 1997, the Operating Partnership acquired a multifamily property
located in Beaverton, Oregon ("Club at the Green").  Club at the Green was
approximately 93% occupied as of May 1, 1997.  The property consists of 254
units in 14 two and three story residential buildings on approximately 15 acres.
Amenities include a clubhouse, indoor swimming pool, sauna, jacuzzi, weight
room, playground, washer/dryers in all units and wood burning fireplaces.  The
property was constructed in 1991.  Property management services are being
provided by the Operating Partnership since the date of acquisition.

Terms of Purchase

Club at the Green was purchased from an unaffiliated third party for
approximately $14.7 million.

COUNTRY GABLES APARTMENTS, BEAVERTON, OREGON

On April 4, 1997, the Operating Partnership acquired a multifamily property
located in Beaverton, Oregon ("Country Gables").  Country Gables was
approximately 95% occupied as of May 1, 1997.  The property consists of 288
units in 26 residential buildings on approximately 15 acres.  Amenities include
a clubhouse, indoor and outdoor swimming pools, spa, sauna, racquetball court,
fitness facility, washer/dryers, vaulted ceilings in select units and wood
burning fireplaces.  The property was constructed in 1991.  Property management
services are being provided by the Operating Partnership.

Terms of Purchase

Country Gables was purchased from an affiliate of the Operating Partnership,
Zell/Merrill Lynch Real Estate Opportunity Partners Limited Partnership II
("Zell/Merrill II") for $17.0 million, which included the assumption of mortgage
indebtedness of approximately $8.6 million.

INDIGO SPRINGS APARTMENTS, KENT, WASHINGTON

On April 4, 1997, the Operating Partnership acquired a multifamily property
located in Kent, Washington ("Indigo Springs").  Indigo Springs was
approximately 99% occupied as of May 1, 1997.  The property consists of 278
units in 25 two and three story residential buildings and one clubhouse on
approximately 24 acres.  Amenities include a swimming pool, fitness room,
computer room, clubhouse, washer/dryers and fireplaces.  The property was
constructed in 1991.  Property management services are being provided by the
Operating Partnership.

Terms of Purchase

Indigo Springs was purchased from Zell/Merrill II for $12.7 million, which
included the assumption of mortgage indebtedness of approximately $8.2 million.

                                       6


 
WATERMARK SQUARE APARTMENTS, PORTLAND, OREGON

On April 4, 1997, the Operating Partnership acquired a multifamily property
located in Portland, Oregon ("Watermark Square"). Watermark Square was
approximately 95% occupied as of May 1, 1997.  The property consists of 390
units in 21 garden-style residential buildings and two recreational buildings on
approximately 12 acres.  Amenities include two fitness centers, two indoor
pools, spa, sauna, wood-burning fireplaces, private decks or patios and full-
size washer/dryers in each unit.  The property was constructed in 1990.
Property management services are being provided by the Operating Partnership.

Terms of Purchase

Watermark Square was purchased from Zell/Merrill II for $15.8 million, which
included the assumption of mortgage indebtedness of approximately $8.7 million.

SUMMIT CHASE APARTMENTS, CORAL SPRINGS, FLORIDA

On April 29, 1997, the Operating Partnership acquired a multifamily property
located in Coral Springs, Florida ("Summit Chase").  Summit Chase was
approximately 94% occupied as of May 20, 1997.  The property consists of 140
units in 10 two story garden style residential buildings on approximately nine
acres.  Amenities include a leasing/management office, swimming pool, jacuzzi
and tennis court.  The property was constructed in 1985.  Property management
services are being provided by the Operating Partnership since the date of
acquisition.

Terms of Purchase

Summit Chase was purchased from an unaffiliated third party for approximately
$5.5 million.

WILLOW BROOK APARTMENTS, DURHAM, NORTH CAROLINA

On May 13, 1997, the Operating Partnership acquired a multifamily property
located in Durham, North Carolina ("Willow Brook").  Willow Brook was
approximately 96% occupied as of May 20, 1997.  The property consists of 176
units in 13 two story and two three story residential buildings on approximately
21 acres.  Amenities include a clubhouse, swimming pool, tennis courts,
basketball courts, sand volleyball courts, fireplaces and in-unit washer/dryers.
The property was constructed in 1986.  Property management services are being
provided by the Operating Partnership since the date of acquisition.

Terms of Purchase

Willow Brook was purchased from an unaffiliated third party for approximately
$8.5 million.

                                       7



 
THE WILLOWS APARTMENTS, KNOXVILLE, TENNESSEE

On May 15, 1997, the Operating Partnership acquired a multifamily property
located in Knoxville, Tennessee ("The Willows").  The Willows was approximately
96% occupied as of May 1, 1997.  The property consists of 250 units in 12 two
and three story residential buildings and one clubhouse on approximately 19
acres.  Amenities include a swimming pool, whirlpool, tennis court, car wash,
sport court, fitness room, clubhouse and laundry facilities.  The property was
constructed between 1987 and 1988.  Property management services are being
provided by the Operating Partnership.

Terms of Purchase

The Willows was purchased from Zell/Merrill I for $11 million, which included
the assumption of mortgage indebtedness of approximately $8.1 million.

DISPOSITION

On March 28, 1997, the Operating Partnership sold the Plantation Apartments, a
200-unit multifamily property located in Monroe, Louisiana, for a sales price of
$4.8 million to an unaffiliated third party.  For financial statement purposes,
the Operating Partnership recorded a gain of approximately $3.6 million.

                                       8


 
ITEM 5.  OTHER EVENTS

On April 28, 1997, the Operating Partnership made an $88 million investment in
six mortgage loans which are collateralized by five multifamily properties.

The Operating Partnership has entered into a letter of intent to purchase an
additional seven multifamily properties from Zell Merrill I (the "1997 Probable
Properties") for an aggregate purchase price of $90.7 million, which includes
$17.1 million in cash and the assumption of mortgage indebtedness of $73.6
million.   The Operating Partnership plans to fund the purchase of these
properties primarily from the Operating Partnership's working capital.  The
descriptions of  the 1997 Probable Properties are discussed below.

HIGHLINE OAKS APARTMENTS, DENVER, COLORADO

Highline Oaks Apartments ("Highline Oaks") is a multifamily property located in
Denver, Colorado.  The property consists of 220 units in 11 residential
buildings and one community building on approximately 10 acres.  Amenities
include a swimming pool, fitness room, jacuzzi, sport courts, clubhouse,
monitored alarm system, washer/dryers and fireplaces in each unit.  The property
was constructed in 1986.  The Operating Partnership currently provides property
management services for this property.

MOUNTAIN BROOK APARTMENTS, CHATTANOOGA, TENNESSEE

Mountain Brook Apartments ("Mountain Brook") is a multifamily property located
in Chattanooga, Tennessee.  The property consists of 280 units in 19 two and
three story garden style residential buildings on approximately 43 acres.
Amenities include a clubhouse, outdoor pool and Jacuzzi, sport court, car wash,
picnic areas with grills, laundry facilities, individual alarm systems,
washer/dryer hook-ups, mountain views and wood-burning fireplaces in select
units.  The property was constructed in 1987. The Operating Partnership
currently provides property management services for this property.

RIDGEMONT APARTMENTS, CHATTANOOGA, TENNESSEE

Ridgemont Apartments ("Ridgemont") is a multifamily property located in
Chattanooga, Tennessee.  The property consists of 226 units in 12 two and three
story garden style residential buildings and one clubhouse on approximately 21
acres.  Amenities include a swimming pool, whirlpool, fitness room, sauna,
clubhouse, tennis court, laundry facilities, washer/dryer hook-ups and wood
burning fireplaces.  The property was constructed in 1988.  The Operating
Partnership currently provides property management services for this property.

PRESTON BEND APARTMENTS, DALLAS, TEXAS

Preston Bend Apartments ("Preston Bend") is a multifamily property located in
Dallas, Texas.  The property consists of 255 units in 10 garden style
residential buildings and one community building on approximately nine acres.
Amenities include a swimming pool, spa, car wash area, clubhouse, fitness room,
tennis court, playground, sport court, in-unit washer/dryers and fireplaces in
select units.  The property was constructed in 1986.  The Operating Partnership
currently provides property management services for this property.

                                       9

 
SPINNAKER COVE APARTMENTS, NASHVILLE, TENNESSEE

Spinnaker Cove Apartments ("Spinnaker Cove") is a multifamily property located
in Nashville, Tennessee. The property consists of 278 units in 16 two and three
story garden style residential buildings and one clubhouse on approximately 21
acres.  Amenities include a clubhouse, fitness center, steam room, two
whirlpools, a two-level swimming pool with a fountain, two lighted tennis
courts, car wash, sand volleyball court, picnic area with grills and tables,
courtesy business center and fenced boat storage area.  The property was
constructed in 1986.  The Operating Partnership currently provides property
management services for this property.

WINDEMERE APARTMENTS, MESA, ARIZONA

Windemere Apartments ("Windemere") is a multifamily property located in Mesa,
Arizona.  The property consists of 224 units in 18 two story residential
buildings and one clubhouse on approximately 13 acres.  Amenities include a spa,
dry sauna, fitness facility, volleyball court, basketball court, playground,
clubhouse, car wash center, gas barbecue grills, two pools and two tennis
courts.  The property was constructed in 1986. The Operating Partnership
currently provides property management services for this property.

WYNDRIDGE II & III APARTMENTS, MEMPHIS, TENNESSEE

Wyndridge II & III Apartments ("Wyndridge II & III") is a multifamily property
located in Memphis, Tennessee. The property consists of 568 units in 27 two and
three story residential buildings and two clubhouses on approximately 59 acres.
Amenities include three swimming pools, three whirlpools, two lighted tennis
courts, a fitness center, playground, jogging path, barbecue areas, indoor
racquetball court, sand volleyball court, car wash area and laundry facilities.
The property was constructed in 1988. The Operating Partnership currently
provides property management services for this property.

                                       10



ITEM 7. FINANCIAL STATEMENTS AND EXHIBITS

     C. EXHIBITS

          24.1  Consent of Ernst & Young LLP

          No information is required under Items 1, 3, 4, and 6, and these 
          items have therefore been omitted.



                                      11





                       ERP OPERATING LIMITED PARTNERSHIP


                  PRO FORMA CONDENSED CONSOLIDATED STATEMENTS





                     Required under Item 7(b) of Form 8-K

                                      12

 
                       ERP OPERATING LIMITED PARTNERSHIP
             PRO FORMA CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

Capitalized terms not defined herein are used as defined in the Operating
Partnership's Annual Report on Form 10-K for the year ended December 31, 1996
and the Operating Partnership's Quarterly Report on Form 10-Q for the three
months ended March 31, 1997.

The following unaudited Pro Forma Condensed Consolidated Balance Sheet as of
March 31, 1997 and Statements of Operations for the three months ended March 31,
1997 and for the year ended December 31, 1996 have been presented as if the
March 1997 Common Share Offerings, the acquisition of 18 multifamily properties,
the probable acquisition of seven properties and the disposition of one
multifamily property had occurred on January 1, 1997 or January 1, 1996 (or
March 31, 1997 for balance sheet purposes). Twelve of the acquired properties
are included in the Operating Partnership's Historical Balance Sheet as of March
31, 1997 and six of the properties, which were acquired subsequent to March 31,
1997, are included on a Pro Forma basis as described in Note A of the Pro Forma
Condensed Consolidated Balance Sheet as of March 31, 1997.

The unaudited Pro Forma Condensed Consolidated Financial Statements are not
necessarily indicative of the results of future operations, nor the results of
historical operations, had all the transactions occurred as described above on
either January 1, 1996 or January 1, 1997.

The Pro Forma Condensed Consolidated Financial Statements should be read in
conjunction with the accompanying Notes to the Pro Forma Condensed Consolidated
Financial Statements, the Operating Partnership's Annual Report on Form 10-K for
the year ended December 31, 1996 and the Operating Partnership's Quarterly
Report on Form 10-Q for the three months ended March 31, 1997 and Statements of
Revenue and Certain Expenses for certain of the acquired properties and the 1997
Probable Properties (included elsewhere herein).

                                      13


                       ERP OPERATING LIMITED PARTNERSHIP
                PRO FORMA CONDENSED CONSOLIDATED BALANCE SHEET
                             AS OF MARCH 31, 1997
                                  (UNAUDITED)
                            (Amounts in thousands)



                                                          1997
                                                      Most Recent         1997
                                                        Acquired        Probable        Pro
                                         Historical  Properties (A)  Properties (B)    Forma
                                         ----------  --------------  --------------  ----------
                                                                         
ASSETS
Rental property, net                     $2,873,260     $ 70,914        $ 90,705     $3,034,879
Investment in mortgage notes, net            86,895          --              --          86,895
Cash and cash equivalents                    84,829      (37,262)        (17,142)        30,425
Rents receivable                              1,351          --              --           1,351
Deposits--restricted                          9,007          --              --           9,007
Escrows deposits--mortgage                   17,582          --              --          17,582
Deferred financing costs, net                14,425          --              --          14,425
Other assets                                 25,886          --              --          25,886
                                         ----------     --------        --------     ----------
    Total assets                         $3,113,235     $ 33,652        $ 73,563     $3,220,450
                                         ==========     ========        ========     ========== 
LIABILITIES AND PARTNERS' CAPITAL    
Liabilities:
Mortgage notes payable                   $  795,723     $ 33,652        $ 73,563     $  902,938
Line of credit                                  --           --              --             --
Notes, net                                  498,918          --              --         498,918
Accounts payable and accrued expenses        31,243          --              --          31,243
Accrued interest payable                     15,447          --              --          15,447
Due to affiliates                               656          --              --             656
Rents received in advance and other
 liabilities                                 18,904          --              --          18,904
Security deposits                            15,123          --              --          15,123
Distributions payable                        47,220          --              --          47,220
                                         ----------     --------        --------     ----------
    Total liabilities                     1,423,234       33,652          73,563      1,530,449
                                         ----------     --------        --------     ----------
Commitments and contingencies
  9 3/8 Series A Cumulative Redeemable
   Preference Units                         153,000          --              --         153,000
                                         ----------     --------        --------     ----------
  9 1/8 Series B Cumulative Redeemable
   Preference Units                         125,000          --              --         125,000
                                         ----------     --------        --------     ----------
  9 1/8 Series C Cumulative Redeemable
   Preference Units                         115,000          --              --         115,000
                                         ----------     --------        --------     ----------
Partners' Capital
  General Partner                         1,152,737          --              --       1,152,737
  Limited Partners                          144,264          --              --         144,264
                                         ----------     --------        --------     ----------
    Total partners' capital               1,297,001          --              --       1,297,001
                                         ----------     --------        --------     ----------
    Total liabilities and                     
     partners' capital                   $3,113,235     $ 33,652        $ 73,563     $3,220,450
                                         ==========     ========        ========     ========== 


(A) Reflects the most recent multifamily property acquisitions, which include
    Country Gables, Indigo Springs, Watermark Square, The Willows, Summit Chase
    and Willow Brook (acquired in April and May 1997) (collectively the "1997
    Most Recent Acquired Properties"). In connection with such acquisitions the
    amounts presented include the initial purchase price as well as subsequent
    closing costs incurred and capital improvements required as identified in
    the acquisition process and the assumption of $33.7 million of mortgage
    indebtedness secured by four of the 1997 Most Recent Acquired Properties.

(B) Reflects the probable acquisitions of Highline Oaks, Mountain Brook,
    Ridgemont, Preston Bend, Spinnaker Cove, Windemere, Wyndridge II and III
    (collectively the "1997 Probable Properties"). In connection with the 1997
    Probable Properties the amounts presented include the initial purchase price
    and the assumption of $73.6 million of mortgage indebtedness secured by the
    1997 Probable Properties.

                                      14



                       ERP OPERATING LIMITED PARTNERSHIP
           PRO FORMA CONDENSED CONSOLIDATED STATEMENT OF OPERATIONS
                   For the three months ended March 31, 1997
                                  (UNAUDITED)
                (Amounts in thousands except for OP Unit data)




                                                  1997            1997
                                               Previously     Most Recent         1997           1997
                                                Acquired        Acquired        Probable       Disposed                       Pro
                                 Historical  Properties (A)  Properties (B)  Properties (C)  Property (D)  Adjustments (E)   Forma
                                 ----------  --------------  --------------  --------------  ------------  ---------------  --------
                                                                                                       
REVENUES
Rental income                    $  134,235  $        4,645  $        2,890  $        3,696  $      (222)  $          --    $145,244
Fee and asset management              1,578             --              --              --           --               --       1,578
Interest income - investment 
  in mortgage notes                   3,683             --              --              --           --               --       3,683
Interest and other income             1,891             --              --              --           --            (1,094)       797
                                 ----------  --------------  --------------  --------------  ------------  ---------------  --------
    Total revenues                  141,387           4,645           2,890           3,696         (222)          (1,094)   151,302
                                 ----------  --------------  --------------  --------------  ------------  ---------------  --------

EXPENSES
Property and maintenance             32,334           1,225             935           1,186          (93)            (594)    34,993
Real estate taxes and insurance      13,911             517             292             265          (14)             --      14,971
Property management                   5,671             --              --              --           (12)             248      5,907
Fee and asset management                967             --              --              --           --               --         967
Depreciation                         28,877             --              --              --           (38)           2,756     31,595
Interest:
  Expense incurred                   23,293             --              --              --           --             2,232     25,525
  Amortization of deferred 
    financing costs                     603             --              --              --           --               --         603
General and administrative            2,975             --              --              --           --               --       2,975
                                 ----------  --------------  --------------  --------------  ------------  ---------------  --------
    Total expenses                  108,631           1,742           1,227           1,451         (157)           4,642    117,536
                                 ----------  --------------  --------------  --------------  ------------  ---------------  --------

Income before gain on
  disposition of properties          32,756  $        2,903  $        1,663  $        2,245  $       (65)  $       (5,736)    33,766
                                             ==============  ==============  ==============  ============  ===============
Gain on disposition of 
  properties                          3,632                                                                                      --
                                 ----------                                                                                 --------

Net income                       $   36,388                                                                                 $ 33,766
                                 ==========                                                                                 ========

ALLOCATION OF NET INCOME:
9 3/8 Series A Cumulative
  Redeemable Preference Units    $    3,586                                                                                 $  3,586
                                 ==========                                                                                 ========
9 1/8 Series B Cumulative
  Redeemable Preference Units    $    2,852                                                                                 $  2,852
                                 ==========                                                                                 ========
9 1/8 Series C Cumulative
  Redeemable Preference Units    $    2,623                                                                                 $  2,623
                                 ==========                                                                                 ========

General Partner                      23,901                                                                                   21,733
Limited Partners                      3,426                                                                                    2,972
                                 ----------                                                                                 --------
                                 $   27,327                                                                                 $ 24,705
                                 ==========                                                                                 ========
Net income per weighted average 
  OP Unit outstanding            $     0.46                                                                                 $   0.40
                                 ==========                                                                                 ========

Weighted average OP Units 
  outstanding                        59,269                                                                           (F)     61,061
                                 ==========                                                                                 ========
 


/(A)/ Reflects the results of operations for Town Center, Harborview, The
      Cardinal, Trails at Dominion, Dartmouth Woods, Rincon, Waterford at the
      Lakes, Junipers at Yarmouth, Lincoln Harbour, Sedona Ridge, Club at the
      Green and Knight's Castle (acquired from January through March 1997)
      (collectively, the "1997 Previously Acquired Properties"). The amounts
      presented represent the historical amounts for certain revenues and
      expenses for the periods from January 1, 1997 through the respective
      acquisition dates for each property.

/(B)/ Reflects the results of operations for the 1997 Most Recent Acquired
      Properties. The amounts presented for rental revenues, property and
      maintenance and real estate taxes and insurance are based on the revenues
      and certain expenses of the 1997 Most Recent Acquired Properties for the
      three months ended March 31, 1997.

/(C)/ Reflects the results of operations for the 1997 Probable Properties. The
      amounts presented for rental revenues, property and maintenance and real
      estate taxes and insurance are based on the revenues and certain expenses
      of the 1997 Probable Properties for the three months ended March 31, 1997.
     
                                      15

 
 

                                                                                    
(D) Reflects the elimination of the results of operations for the Plantation
    Apartments (the "1997 Disposed Property") for the period from January 1,
    1997 through the disposition date for the property.

(E) Reflects the following adjustments to the 1997 Previously Acquired                    
    Properties and the 1997 Most Recent Acquired Properties results of                  
    operations as follows:                                                              
                                                                                        
    Interest and other income:
      Reduction of interest income due to the use of working capital for
        property acquisitions.                                                          $(1,094)
                                                                                        =======

    Property and maintenance:
      The elimination of third-party management fees where the Operating
        Partnership is providing onsite property management services.                   $  (594)
                                                                                        =======
    Property management:
      Incremental cost associated with self management of the 1997 Most Recent
        Acquired Properties and the 1997 Probable Properties for the three
        months ended March 31, 1997 and the 1997 Previously Acquired Properties
        for the period from January 1, 1997 through the respective acquisition
        dates for each property.                                                        $   248
                                                                                        =======
    Depreciation:
      Reflects depreciation based on the expected total investment of $161.6
        million for the 1997 Most Recent Acquired Properties and the 1997
        Probable Properties and the expected total investment of $214.4
        million for the 1997 Previously Acquired Properties less 10% allocated
        to land and depreciated over a 30-year life for real property.
        Depreciation for the 1997 Previously Acquired Properties reflect amounts
        from January 1, 1997 through the respective acquisition dates for each
        property.                                                                       $ 2,756
                                                                                        =======
    Interest:
    Expense incurred:
      Interest on mortgage indebtedness for certain of the 1997 Previously
        Acquired Properties, the 1997 Most Recent Acquired Properties and the
        1997 Probable Properties (G).                                                   $ 2,232
                                                                                        =======        
(F) Pro Forma weighted average OP Units outstanding for the three months ended
    March 31, 1997 was 61.1 million, which includes 61.1 million OP Units
    outstanding as of March 31, 1997. The OP Units outstanding does not include
    any shares or OP Units issued in a private or public offering that have not
    been used or are not intended to be used for acquisitions or repayment of
    debt directly incurred in an acquisition.

(G) Detail of interest expense on mortgage indebtedness for certain of the 1997
    Previously Acquired Properties, the 1997 Most Recent Acquired Properties and
    the 1997 Probable Properties:
 

 
 
                                           Mortgage        Interest    Interest
                  Property               Indebtedness        Rate      Expense
                  --------               ------------      --------    --------
                                                              
           Harborview (1)                  $ 12,688          8.85%      $   62
           The Cardinal (1)                   7,532          8.63%          52
           Trails at Dominion (1)             9,100          8.78%          90
           Trails at Dominion (1)            10,391          9.00%         101
           Trails at Dominion (1)             6,698          7.70%          57
           Dartmouth Woods (1)                4,442          8.25%          55
           Lincoln Harbour (1)               10,000          6.68%         111
           Highline Oaks                      7,100          6.75%         120
           Preston Bend                       8,664          6.50%         141
           Spinnaker Cove                    14,205          4.45%         158
           Wyndridge II & III                24,990          4.25%         265
           Mountain Brook                     6,553          6.25%         102
           Ridgemont                          5,582          6.25%          87
           The Willows                        8,110          9.75%         198
           Country Gables                     8,648          7.71%         167
           Indigo Springs                     8,186          8.00%         164
           Watermark Square                   8,708          8.68%         189
           Windemere                          6,469          7.00%         113
                                           --------                     ------
           Totals                          $168,066                     $2,232
                                           ========                     ======
 

       (1) The amounts presented for these properties represent the historical
           amounts for the periods from January 1, 1997 through the respective
           acquisition dates for each property.

                                      16



                       ERP OPERATING LIMITED PARTNERSHIP
           PRO FORMA CONDENSED CONSOLIDATED STATEMENT OF OPERATIONS
                     For the year ended December 31, 1996
                                  (UNAUDITED)
                 (Amounts in thousands except for OP Unit data)






                                                           1997            1997           1997
                                                         Acquired        Probable       Disposed                       Pro
                                          Historical  Properties (A)  Properties (B)  Property (C)  Adjustments (D)   Forma
                                          ----------  --------------  --------------  ------------  ---------------  --------
                                                                                                   
REVENUES
Rental income                             $454,412        $40,638         $14,021        $(915)         $    --       $508,156
Fee and asset management                     6,749            --              --           --                --          6,749
Interest income - investment
  in mortgage notes                         12,819            --              --           --                --         12,819
Interest and other income                    4,405            --              --           --             (2,942)        1,463
                                          --------        -------         -------        -----          --------      --------
    Total revenues                         478,385         40,638          14,021         (915)           (2,942)      529,187
                                          --------        -------         -------        -----          --------      --------
EXPENSES
Property and maintenance                   127,172         10,723           6,014         (343)           (2,427)      141,139
Real estate taxes and insurance             44,128          4,841           1,112          (58)              --         50,023
Property management                         17,512            --              --           (47)            1,367        18,832
Fee and asset management                     3,837            --              --           --                --          3,837
Depreciation                                93,253            --              --          (156)           10,569       103,666
Interest:
  Expense incurred                          81,351            --              --           --             11,873        93,224
  Amortization of deferred
    financing costs                          4,242            --              --           --                --          4,242
General and administrative                   9,857            --              --           --                --          9,857
                                          --------        -------         -------        -----          --------      --------
    Total expenses                         381,352         15,564           7,126         (604)           21,382       424,820
                                          --------        -------         -------        -----          --------      --------

Income before gain on
  disposition of properties                 97,033        $25,074         $ 6,895        $(311)         $(24,324)      104,367
                                                          =======         =======        =====          ========
Gain on disposition of
  properties                                22,402                                                                         --
                                          --------                                                                    --------
Income before extraordinary
  item                                     119,435                                                                     104,367

Extraordinary item:
  Write-off of unamortized costs
  on refinanced debt                        (3,512)                                                                        --
                                          --------                                                                    --------
Net income                                $115,923                                                                    $104,367
                                          ========                                                                    ========

ALLOCATION OF NET INCOME:

  Redeemable Preference Interests         $    263                                                                    $     --
                                          ========                                                                    ========
9 3/8 Series A Cumulative
  Redeemable Preference Units             $ 14,345                                                                    $ 14,345
                                          ========                                                                    ========
9 1/8 Series B Cumulative
  Redeemable Preference Units             $ 11,406                                                                    $ 11,406
                                          ========                                                                    ========
9 1/8 Series C Cumulative
  Redeemable Preference Units             $  3,264                                                                    $  3,264
                                          ========                                                                    ========

General Partner                             72,609                                                                      63,009
Limited Partners                            14,036                                                                      12,343
                                          --------                                                                    --------
                                          $ 86,645                                                                    $ 75,352
                                          ========                                                                    ========
Net income per weighted average
  OP Unit outstanding                     $   1.70                                                                    $   1.42
                                          ========                                                                    ========

Weighted average OP Units
  outstanding                                51,108                                                                  (E) 53,029
                                           ========                                                                  ==========


(A) Reflects the results of operations of the 1997 Previously Acquired
    Properties and the 1997 Most Recent Acquired Properties (collectively the
    "1997 Acquired Properties"). The amounts presented for rental revenues,
    property and maintenance and real estate taxes and insurance are based on
    the revenues and certain expenses of the 1997 Acquired Properties for the
    year ended December 31, 1996.

(B) Reflects the results of operations of the 1997 Probable Properties. The
    amounts presented for rental revenues, property and maintenance and real
    estate taxes and insurance are based on the revenues and certain expenses of
    the 1997 Probable Properties for the year ended December 31, 1996. 
      
(C) Reflects the elimination of the results of operations for the 1997 Disposed 
    Property for the year ended December 31, 1996.

                                      17




 
(D)  Reflects the following adjustments:


                                                                     
     Interest and other income:
       Reduction of interest income due to the use of working 
        capital for property acquisitions                               $(2,942)
                                                                        =======
     Property and maintenance:
      The elimination of third-party management fees where the 
       Operating Partnership is providing onsite property management 
       services                                                         $(2,427)
                                                                        =======

     Property management:
       Incremental cost associated with self management of the 1997 
        Acquired Properties and the 1997 Probable Properties for the 
        year ended December 31, 1996                                    $ 1,367
                                                                        =======

     Depreciation:
       Reflects depreciation based on the expected total investment of 
        $376 million for the 1997 Acquired Properties and the 1997 
        Probable Properties less amounts allocated to land, generally 
        10%, and depreciated over a 30-year life for real property.     $10,569
                                                                        =======

     Interest:
     Expense incurred:
       Interest on mortgage indebtedness for certain of the 1997 
        Acquired Properties and the 1997 Probable Properties (F)        $11,873
                                                                        =======


(E)  Pro Forma weighted average OP Units outstanding for the year ended December
     31, 1996 was 53 million, which includes 51.1 million weighted average OP
     Units outstanding as of December 31, 1996 plus the issuance of 1.9 million
     Common Shares in connection with the March 1997 Common Share Offerings. The
     OP Units outstanding does not include any shares or OP Units issued in a
     private or public offering that have not been used or are not intended to
     be used for acquisitions or repayment of debt directly incurred in an
     acquisition.

(F)  Detail of interest expense on mortgage indebtedness for certain of the 1997
     Acquired Properties and the 1997 Probable Properties:



                                  Mortgage    Interest  Interest
                Property        Indebtedness    Rate     Expense
          ------------------    ------------  --------  --------
                                               
          Harborview              $ 12,688      8.85%    $ 1,123
          The Cardinal               7,532      8.63%        649
          Trails at Dominion         9,100      8.78%        799
          Trails at Dominion        10,391      9.00%        935
          Trails at Dominion         6,698      7.70%        516
          Dartmouth Woods            4,442      8.25%        366
          Lincoln Harbour           10,000      6.68%        668
          Highline Oaks              7,100      6.75%        479
          Preston Bend               8,664      6.50%        563
          Spinnaker Cove            14,205      4.45%        632
          Wyndridge II & III        24,990      4.25%      1,062
          Mountain Brook             6,553      6.25%        410
          Ridgemont                  5,582      6.25%        349
          The Willows                8,110      9.75%        791
          Country Gables             8,648      7.71%        667
          Indigo Springs             8,186      8.00%        655
          Watermark Square           8,708      8.68%        756
          Windemere                  6,469      7.00%        453
                                  --------               -------
          Totals                  $168,066               $11,873
                                  ========               =======


                                      18





                             STATEMENTS OF REVENUE
                             AND CERTAIN EXPENSES





                     Required under Item 7(a) of Form 8-K

                                      19

 
                        REPORT OF INDEPENDENT AUDITORS



The Partners of
ERP Operating Limited Partnership


We have audited the accompanying combined Statements of Revenue and Certain
Expenses of the Zell/Merrill Properties (the Properties) described in Note 2 for
each of the three years in the period ended December 31, 1996. These combined
Statements of Revenue and Certain Expenses are the responsibility of the
Properties' management. Our responsibility is to express an opinion on the
combined Statements of Revenue and Certain Expenses based on our audits.

We conducted our audits in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audits to obtain
reasonable assurance about whether the Statements of Revenue and Certain
Expenses are free of material misstatement. An audit includes examining, on a
test basis, evidence supporting the amounts and disclosures in the Statements of
Revenue and Certain Expenses. An audit also includes assessing the basis of
accounting used and significant estimates made by management, as well as
evaluating the overall presentation of the Statements of Revenue and Certain
Expenses. We believe that our audits provide a reasonable basis for our opinion.

The accompanying combined Statements of Revenue and Certain Expenses were
prepared for the purpose of complying with the rules and regulations of the
Securities and Exchange Commission for inclusion in ERP Operating Limited
Partnership's Current Report on Form 8-K as described in Note 1, and are not
intended to be a complete presentation of the Properties' revenue and expenses.

In our opinion, the combined Statements of Revenue and Certain Expenses referred
to above present fairly, in all material respects, the revenue and certain
expenses described in Note 1 for each of the three years in the period ended
December 31, 1996 in conformity with generally accepted accounting principles.

                                                    ERNST & YOUNG LLP

Chicago, Illinois
March 25, 1997

                                      20


                            ZELL/MERRILL PROPERTIES
                        COMBINED STATEMENTS OF REVENUE
                             AND CERTAIN EXPENSES
                            (amounts in thousands)



                                                  For the
                                             Three Months Ended       For the               For the               For the
                                               March 31, 1997        Year Ended            Year Ended            Year Ended
                                                (Unaudited)       December 31, 1996     December 31, 1995     December 31, 1994
                                             ------------------   -----------------     -----------------     -----------------
                                                                                                  
REVENUE
    Rental Income                                  $6,191              $25,212               $24,038               $23,198
                                                   ------              -------               -------               -------


CERTAIN EXPENSES
    Property operating and maintenance              1,744                6,899                 7,018                 6,782
    Real estate taxes and insurance                   516                2,100                 2,008                 2,242
    Management fees                                   310                1,269                 1,235                 1,119 
                                                   ------              -------               -------               -------
                                                    2,570               10,268                10,261                10,143
                                                   ------              -------               -------               -------

REVENUE IN EXCESS OF CERTAIN
     EXPENSES                                      $3,621              $14,944               $13,777               $13,055
                                                   ======              =======               =======               =======



                            See accompanying notes.

                                      21




                            ZELL/MERRILL PROPERTIES
                         NOTES TO COMBINED STATEMENTS
                        OF REVENUE AND CERTAIN EXPENSES

Note 1 - Summary of Significant Accounting Policies

     The accompanying combined statements of revenue and certain expenses for
     the three years ended December 31, 1996 and the three months ended March
     31, 1997 (unaudited) were prepared for purposes of complying with the rules
     and regulations of the Securities and Exchange Commission. The accompanying
     financial statements are not representative of the actual operations of the
     Zell/Merrill Properties for the periods presented as certain expenses,
     which may not be comparable to the expenses to be incurred by ERP Operating
     Limited Partnership and its subsidiaries (the "Operating Partnership") in
     the proposed future operations of the Zell/Merrill Properties, have been
     excluded. Expenses excluded consist of interest, depreciation and
     amortization, professional fees and other costs not directly related to the
     future operations of the Zell/Merrill Properties.

     In preparation of the Operating Partnership's Combined Statements of
     Revenue and Certain Expenses in conformity with generally accepted
     accounting principles, management makes estimates and assumptions that
     effect the reported amounts of revenues and expenses during the reporting
     period. Actual results could differ from these estimates.

     Rental income attributable to residential leases is recorded when due from
     tenants, generally on a straight line basis. Expenses are recognized in the
     period in which they are incurred.


Note 2 - Description of Properties

     The following properties are included in the combined statements of revenue
     and certain expenses:




                                                                Date       Number       Total
     Property Name         Location            Seller (A)     Acquired    of Units  Investment (B)
     -------------       ---------------    ---------------   --------    --------  --------------
                                                                     
     Sedona Ridge        Phoenix, AZ        Zell/Merrill I     3/24/97       250    $  15,200,000
     Country Gables      Beaverton, OR      Zell/Merrill II    4/4/97        288       17,000,000
     Indigo Springs      Kent, WA           Zell/Merrill II    4/4/97        278       12,700,000
     Watermark Square    Portland, OR       Zell/Merrill II    4/4/97        390       15,800,000
     The Willows         Knoxville, TN      Zell/Merrill I     5/15/97       250       11,000,000
     Highline Oaks       Denver, CO         Zell/Merrill I       (C)         220       10,700,000
     Mountain Brook      Chattanooga, TN    Zell/Merrill I       (C)         280        7,600,000
     Ridgemont           Chattanooga, TN    Zell/Merrill I       (C)         226        7,600,000
     Preston Bend        Dallas, TX         Zell/Merrill I       (C)         255       11,000,000
     Spinnaker Cove      Nashville, TN      Zell/Merrill I       (C)         278       14,205,000
     Windemere           Mesa, AZ           Zell/Merrill I       (C)         224        9,600,000
     Wyndridge II & III  Memphis, TN        Zell/Merrill I       (C)         568       30,000,000
                                                                          --------  --------------
                                                                           3,507    $ 162,405,000
                                                                          ========  ==============
 

Notes:

(A)  The Zell/Merrill Properties have been presented on a combined basis because
     all of the properties are commonly managed by the Operating Partnership and
     because the selling entities, Zell/Merrill Lynch Real Estate Opportunity
     Partners Limited Partnership ("Zell/Merrill I") and Zell/Merrill Lynch Real
     Estate Opportunity Partners Limited Partnership II ("Zell/Merrill II") are
     all ultimately controlled by Mr. Samuel Zell, Chairman of the Board of
     Equity Residential Properties Trust (the "Company"), the general partner of
     the Operating Partnership.

(B)  Includes initial purchase price.

(C)  The Operating Partnership has a commitment to acquire this property or has
     reached an agreement in principle and is in the final stages of documenting
     the acquisition of this property.

                                      22


 
Note 3 - Related Party Transactions

     During the years ended December 31, 1996 and 1995 and during the unaudited
     interim period from January 1, 1997 to March 31, 1997, the Zell/Merrill
     Properties were managed by the Operating Partnership. During the year ended
     December 31, 1994, all of the Zell/Merrill Properties, except for Country
     Gables, Indigo Springs and Watermark Square, were managed by the Operating
     Partnership. Of the management fees paid during 1994, approximately
     $827,000 were paid to the Operating Partnership. The management agreements
     provided for a fee based on a percentage of gross receipts, as defined by
     each of the Zell/Merrill Properties' individual management agreements.

     Insurance premiums of approximately $359,000, $249,000 and $268,000 for the
     years ended December 31, 1994, 1995 and 1996, respectively, were incurred
     from and coverage was provided by an affiliate of the Seller.

     The general partner of the entities that own the Zell/Merrill Properties
     are ultimately controlled by Mr. Samuel Zell, who is also Chairman of the
     Board of the Company.

                                      23


 
                        REPORT OF INDEPENDENT AUDITORS



The Partners of
ERP Operating Limited Partnership


We have audited the accompanying Statement of Revenue and Certain Expenses of
Harborview (the Property) for the year ended December 31, 1996. The Statement of
Revenue and Certain Expenses is the responsibility of the Property's management.
Our responsibility is to express an opinion on the Statement of Revenue and
Certain Expenses based on our audit.

We conducted our audit in accordance with generally accepted auditing standards.
Those standards require that we plan and perform the audit to obtain reasonable
assurance about whether the Statement of Revenue and Certain Expenses is free of
material misstatement. An audit includes examining, on a test basis, evidence
supporting the amounts and disclosures made in the Statement of Revenue and
Certain Expenses. An audit also includes assessing the basis of accounting used
and significant estimates made by management, as well as evaluating the overall
presentation of the Statement of Revenue and Certain Expenses. We believe that
our audit provides a reasonable basis for our opinion.

The accompanying Statement of Revenue and Certain Expenses was prepared for the
purpose of complying with the rules and regulations of the Securities and
Exchange Commission for inclusion in ERP Operating Limited Partnership's Current
Report on Form 8-K as described in Note 1, and is not intended to be a complete
presentation of the Property's revenue and expenses.

In our opinion, the Statement of Revenue and Certain Expenses referred to above
presents fairly, in all material respects, the revenue and certain expenses
described in Note 1 for the year ended December 31, 1996, in conformity with
generally accepted accounting principles.

                                       ERNST & YOUNG LLP

Chicago, Illinois
May 16, 1997

                                      24


                                  HARBORVIEW
                             STATEMENT OF REVENUE
                             AND CERTAIN EXPENSES
                            (amounts in thousands)




                                                         For the
                                                        Year Ended
                                                     December 31, 1996
                                                    ------------------
                                                 
REVENUE
   Rental Income                                           $2,325
                                                           ------

CERTAIN EXPENSES
   Property operating and maintenance                         440
   Real estate taxes and insurance                            199
   Management fees                                             74
                                                           ------
                                                              713
                                                           ------

REVENUE IN EXCESS OF CERTAIN
   EXPENSES                                                $1,612
                                                           ======

                           See accompanying notes.

                                      25


                                  HARBORVIEW
                             NOTES TO STATEMENT OF
                         REVENUE AND CERTAIN EXPENSES

Note 1 - Summary of Significant Accounting Policies

     The accompanying statement of revenue and certain expenses for the year
     ended December 31, 1996 was prepared for purposes of complying with the
     rules and regulations of the Securities and Exchange Commission. The
     accompanying financial statement is not representative of the actual
     operations of Harborview for the period presented as certain expenses,
     which may not be comparable to the expenses to be incurred by ERP Operating
     Limited Partnership and its subsidiaries (the "Operating Partnership") in
     the proposed future operations of Harborview, have been excluded. Expenses
     excluded consist of interest, depreciation and amortization, professional
     fees and other costs not directly related to the future operations of
     Harborview.

     In preparation of the Operating Partnership's Statement of Revenue and
     Certain Expenses in conformity with generally accepted accounting
     principles, management makes estimates and assumptions that effect the
     reported amounts of revenues and expenses during the reporting period.
     Actual results could differ from these estimates.

     Rental income attributable to residential leases is recorded when due from 
     tenants, generally on a straight line basis.

     Harborview had a management agreement with a management company
     unaffiliated with the Operating Partnership through the acquisition date to
     maintain and manage the operations of the apartment complex. Management
     fees were based on 4% of gross receipts. In 1996, all of the management
     fees were paid to an affiliate of the seller. Upon acquisition of
     Harborview by the Operating Partnership, such management contract was
     cancelled at which time the Operating Partnership began to manage
     Harborview.

Note 2 - Description of Property

     The following property is included in the statement of revenue and certain
     expenses:
 
 
                                            Date       Number       Total
       Property Name       Location       Acquired    of Units   Investment (A)
     ----------------   -------------     --------    --------   --------------
                                                      
        Harborview      San Pedro, CA     1/21/97        160       $19,115,000
 
Notes:

(A) Includes initial purchase price, closing costs, start up costs and amounts
    specified at date of purchase for future capital improvements.

                                      26

 
                         REPORT OF INDEPENDENT AUDITORS



The Partners of
ERP Operating Limited Partnership


We have audited the accompanying Statement of Revenue and Certain Expenses of
Trails at Dominion (the Property) for the year ended December 31, 1996. The
Statement of Revenue and Certain Expenses is the responsibility of the
Property's management. Our responsibility is to express an opinion on the
Statement of Revenue and Certain Expenses based on our audit.

We conducted our audit in accordance with generally accepted auditing standards.
Those standards require that we plan and perform the audit to obtain reasonable
assurance about whether the Statement of Revenue and Certain Expenses is free of
material misstatement. An audit includes examining, on a test basis, evidence
supporting the amounts and disclosures in the Statement of Revenue and Certain
Expenses. An audit also includes assessing the basis of accounting used and
significant estimates made by management, as well as evaluating the overall
presentation of the Statement of Revenue and Certain Expenses. We believe that
our audit provides a reasonable basis for our opinion.

The accompanying Statement of Revenue and Certain Expenses was prepared for the
purpose of complying with the rules and regulations of the Securities and
Exchange Commission for inclusion in ERP Operating Limited Partnership's Current
Report on Form 8-K as described in Note 1, and is not intended to be a complete
presentation of the Property's revenue and expenses.

In our opinion, the Statement of Revenue and Certain Expenses referred to above
presents fairly, in all material respects, the revenue and certain expenses
described in Note 1 for the year ended December 31, 1996, in conformity with
generally accepted accounting principles.

                                       ERNST & YOUNG LLP

Chicago, Illinois
May 6, 1997

                                      27

                              TRAILS AT DOMINION
                             STATEMENTS OF REVENUE
                             AND CERTAIN EXPENSES
                            (amounts in thousands)



                                                   For the Period
                                                 January 1, 1997 -             For the
                                                 February 12, 1997            Year Ended
                                                    (Unaudited)            December 31, 1996
                                                 -----------------         -----------------
                                                                    
REVENUE
   Rental Income                                        $988                     $6,537
                                                        ----                     ------

CERTAIN EXPENSES
   Property operating and maintenance                    225                      1,587
   Real estate taxes and insurance                       147                      1,273
   Management fees                                        37                        326
                                                        ----                     ------
                                                         409                      3,186
                                                        ----                     ------

REVENUE IN EXCESS OF CERTAIN
   EXPENSES                                             $579                     $3,351
                                                        ====                     ======


                            See accompanying notes.

                                      28


                              TRAILS AT DOMINION
                            NOTES TO STATEMENTS OF
                         REVENUE AND CERTAIN EXPENSES

Note 1 - Summary of Significant Accounting Policies

     The accompanying statements of revenue and certain expenses for the year
     ended December 31, 1996 and for the period January 1, 1997 through February
     12, 1997 (unaudited) were prepared for purposes of complying with the rules
     and regulations of the Securities and Exchange Commission. The accompanying
     financial statements are not representative of the actual operations of
     Trails at Dominion for the periods presented as certain expenses, which may
     not be comparable to the expenses to be incurred by ERP Operating Limited
     Partnership and its subsidiaries (the "Operating Partnership") in the
     proposed future operations of Trails at Dominion, have been excluded.
     Expenses excluded consist of interest, depreciation and amortization,
     professional fees and other costs not directly related to the future
     operations of Trails at Dominion.

     In preparation of the Operating Partnership's Statements of Revenue and
     Certain Expenses in conformity with generally accepted accounting
     principles, management makes estimates and assumptions that effect the
     reported amounts of revenues and expenses during the reporting period.
     Actual results could differ from these estimates.

     Rental income attributable to residential leases is recorded when due from
     tenants, generally on a straight line basis.

     Trails at Dominion had a management agreement with a management company
     unaffiliated with the Operating Partnership through the acquisition date to
     maintain and manage the operations of the apartment complex. Management
     fees were based on 5% of gross receipts. In 1996, all of the management
     fees were paid to an affiliate of the seller. Upon acquisition of Trails at
     Dominion by the Operating Partnership, such management contract was
     cancelled at which time the Operating Partnership began to manage Trails at
     Dominion.

Note 2 - Description of Property

     The following property is included in the statements of revenue and certain
     expenses:
 

                                           Date       Number          Total
       Property Name        Location     Acquired    of Units     Investment (A)
     ------------------    -----------   --------    --------     --------------
                                                       
     Trails at Dominion    Houston, TX    2/12/97       843         $38,750,000
 

Notes:

(A)  Includes initial purchase price, closing costs, start up costs and amounts
     specified at date of purchase for future capital improvements.

                                      29

 
                        REPORT OF INDEPENDENT AUDITORS



The Partners of
ERP Operating Limited Partnership


We have audited the accompanying Statement of Revenue and Certain Expenses of
Rincon (the Property) for the year ended December 31, 1996. The Statement of
Revenue and Certain Expenses is the responsibility of the Property's management.
Our responsibility is to express an opinion on the Statement of Revenue and
Certain Expenses based on our audit.

We conducted our audit in accordance with generally accepted auditing standards.
Those standards require that we plan and perform the audit to obtain reasonable
assurance about whether the Statement of Revenue and Certain Expenses is free of
material misstatement. An audit includes examining, on a test basis, evidence
supporting the amounts and disclosures in the Statement of Revenue and Certain
Expenses. An audit also includes assessing the basis of accounting used and
significant estimates made by management, as well as evaluating the overall
presentation of the Statement of Revenue and Certain Expenses. We believe that
our audit provides a reasonable basis for our opinion.

The accompanying Statement of Revenue and Certain Expenses was prepared for the
purpose of complying with the rules and regulations of the Securities and
Exchange Commission for inclusion in ERP Operating Limited Partnership's Current
Report on Form 8-K as described in Note 1, and is not intended to be a complete
presentation of the Property's revenue and expenses.

In our opinion, the Statement of Revenue and Certain Expenses referred to above
presents fairly, in all material respects, the revenue and certain expenses
described in Note 1 for the year ended December 31, 1996, in conformity with
generally accepted accounting principles.

                                       ERNST & YOUNG LLP

Chicago, Illinois
May 7, 1997

                                      30

                                    RINCON
                             STATEMENTS OF REVENUE
                             AND CERTAIN EXPENSES
                            (amounts in thousands)




                                               For the Period
                                             January 1, 1997 -             For the
                                             February 28, 1997            Year Ended
                                                (Unaudited)            December 31, 1996
                                             -----------------         -----------------
                                                                 
REVENUE
   Rental Income                                   $403                      $1,183
                                                   ----                      ------

CERTAIN EXPENSES
   Property operating and maintenance               112                         425
   Real estate taxes and insurance                   44                         123
   Management fees                                   25                          57
                                                   ----                      ------
                                                    181                         605
                                                   ----                      ------
REVENUE IN EXCESS OF CERTAIN
   EXPENSES                                        $222                      $  578
                                                   ====                      ======


                            See accompanying notes.

                                      31

                                    RINCON
                            NOTES TO STATEMENTS OF
                         REVENUE AND CERTAIN EXPENSES

Note 1 - Summary of Significant Accounting Policies

     The accompanying statements of revenue and certain expenses for the year
     ended December 31, 1996 and for the period January 1, 1997 through February
     28, 1997 (unaudited) were prepared for purposes of complying with the rules
     and regulations of the Securities and Exchange Commission. The accompanying
     financial statements are not representative of the actual operations of
     Rincon for the periods presented as certain expenses, which may not be
     comparable to the expenses to be incurred by ERP Operating Limited
     Partnership and its subsidiaries (the "Operating Partnership") in the
     proposed future operations of Rincon, have been excluded. Expenses excluded
     consist of interest, depreciation and amortization, professional fees and
     other costs not directly related to the future operations of Rincon.

     In preparation of the Operating Partnership's Statements of Revenue and
     Certain Expenses in conformity with generally accepted accounting
     principles, management makes estimates and assumptions that effect the
     reported amounts of revenues and expenses during the reporting period.
     Actual results could differ from these estimates.

     Rental income attributable to residential leases is recorded when due from 
     tenants, generally on a straight line basis.

     Rincon had a management agreement with a management company unaffiliated
     with the Operating Partnership through the acquisition date to maintain and
     manage the operations of the apartment complex. Management fees were based
     on 5% of gross receipts. In 1996, all of the management fees were paid to
     an affiliate of the seller. Upon acquisition of Rincon by the Operating
     Partnership, such management contract was cancelled at which time the
     Operating Partnership began to manage Rincon.

Note 2 - Description of Property

     The following property is included in the statements of revenue and certain
     expenses:
 
 
                                        Date        Number         Total
       Property Name     Location     Acquired     of Units    Investment (A)
     ----------------   -----------   --------     --------    --------------
                                                    
        Rincon          Houston, TX    2/28/97        288       $21,175,000
 

Notes:

(A)  Includes initial purchase price, closing costs, start up costs and amounts
     specified at date of purchase for future capital improvements.

Rincon consists of 8 buildings which were all under development during a portion
of 1996. As a result, the accompanying statement only reflects the certain
expenses of each building subsequent to the date each building was placed in
service. The last building was placed in service in September 1996.

                                      32

 
                        REPORT OF INDEPENDENT AUDITORS



The Partners of
ERP Operating Limited Partnership


We have audited the accompanying Statement of Revenue and Certain Expenses of
Waterford at the Lakes (the Property) for the year ended December 31, 1996. The
Statement of Revenue and Certain Expenses is the responsibility of the
Property's management. Our responsibility is to express an opinion on the
Statement of Revenue and Certain Expenses based on our audit.

We conducted our audit in accordance with generally accepted auditing standards.
Those standards require that we plan and perform the audit to obtain reasonable
assurance about whether the Statement of Revenue and Certain Expenses is free of
material misstatement. An audit includes examining, on a test basis, evidence
supporting the amounts and disclosures in the Statement of Revenue and Certain
Expenses. An audit also includes assessing the basis of accounting used and
significant estimates made by management, as well as evaluating the overall
presentation of the Statement of Revenue and Certain Expenses. We believe that
our audit provides a reasonable basis for our opinion.

The accompanying Statement of Revenue and Certain Expenses was prepared for the
purpose of complying with the rules and regulations of the Securities and
Exchange Commission for inclusion in ERP Operating Limited Partnership's Current
Report on Form 8-K as described in Note 1, and is not intended to be a complete
presentation of the Property's revenue and expenses.

In our opinion, the Statement of Revenue and Certain Expenses referred to above
presents fairly, in all material respects, the revenue and certain expenses
described in Note 1 for the year ended December 31, 1996, in conformity with
generally accepted accounting principles.

                                       ERNST & YOUNG LLP

Chicago, Illinois
May 12, 1997

                                      33

                            WATERFORD AT THE LAKES
                             STATEMENTS OF REVENUE
                             AND CERTAIN EXPENSES
                            (amounts in thousands)



                                               For the Period
                                             January 1, 1997 -             For the
                                             February 28, 1997            Year Ended
                                                (Unaudited)            December 31, 1996
                                             -----------------         -----------------
                                                                 
REVENUE
   Rental Income                                    $447                     $2,661
                                                    ----                     ------

CERTAIN EXPENSES
   Property operating and maintenance                173                        641
   Real estate taxes and insurance                    53                        268
   Management fees                                    22                        132
                                                    ----                     ------
                                                     248                      1,041
                                                    ----                     ------

REVENUE IN EXCESS OF CERTAIN
   EXPENSES                                         $199                     $1,620
                                                    ====                     ======
 
                            See accompanying notes.

                                      34



                            WATERFORD AT THE LAKES
                            NOTES TO STATEMENTS OF
                         REVENUE AND CERTAIN EXPENSES

Note 1 - Summary of Significant Accounting Policies

     The accompanying statements of revenue and certain expenses for the year
     ended December 31, 1996 and for the period January 1, 1997 through
     February 28, 1997 (unaudited) were prepared for purposes of complying with
     the rules and regulations of the Securities and Exchange Commission. The
     accompanying financial statements are not representative of the actual
     operations of Waterford at the Lakes for the periods presented as certain
     expenses, which may not be comparable to the expenses to be incurred by ERP
     Operating Limited Partnership and its subsidiaries (the "Operating
     Partnership") in the proposed future operations of Waterford at the Lakes,
     have been excluded. Expenses excluded consist of interest, depreciation and
     amortization, professional fees and other costs not directly related to the
     future operations of Waterford at the Lakes.

     In preparation of the Operating Partnership's Statements of Revenue and
     Certain Expenses in comformity with generally accepted accounting
     principles, management makes estimates and assumptions that effect the
     reported amounts of revenues and expenses during the reporting period.
     Actual results could differ from these estimates.

     Rental income attributable to residential leases is recorded when due from 
     tenants, generally on a straight line basis.

     Waterford at the Lakes had a management agreement with a management company
     unaffiliated with the Operating Partnership through the acquisition date to
     maintain and manage the operations of the apartment complex. Management
     fees were based on 5% of gross receipts. In 1996, all of the management
     fees were paid to an affiliate of the seller. Upon acquisition of Waterford
     at the Lakes by the Operating Partnership, such management contract was
     cancelled at which time the Operating Partnership began to manage Waterford
     at the Lakes.



Note 2 - Description of Property

     The following property is included in the statements of revenue and certain
expenses:





                                                      Date        Number        Total
         Property Name               Location       Acquired     of Units    Investment (A)
     ----------------------          --------       --------     --------    --------------
                                                                 
     Waterford at the Lakes          Kent, WA        2/28/97        344        $19,152,000



   Notes:

(A) Includes initial purchase price, closing costs, start up costs and amounts
    specified at date of purchase for future capital improvements.

                                      35


 
                        REPORT OF INDEPENDENT AUDITORS



The Partners of
ERP Operating Limited Partnership


We have audited the accompanying Statement of Revenue and Certain Expenses of
Lincoln Harbour (the Property) for the year ended December 31, 1996.  The
Statement of Revenue and Certain Expenses is the responsibility of the
Property's management.  Our responsibility is to express an opinion on the
Statement of Revenue and Certain Expenses based on our audit.

We conducted our audit in accordance with generally accepted auditing standards.
Those standards require that we plan and perform the audit to obtain reasonable
assurance about whether the Statement of Revenue and Certain Expenses is free of
material misstatement.  An audit includes examining, on a test basis, evidence
supporting the amounts and disclosures in the Statement of Revenue and Certain
Expenses. An audit also includes assessing the basis of accounting used and
significant estimates made by management, as well as evaluating the overall
presentation of the Statement of Revenue and Certain Expenses.  We believe that
our audit provides a reasonable basis for our opinion.

The accompanying Statement of Revenue and Certain Expenses was prepared for the
purpose of complying with the rules and regulations of the Securities and
Exchange Commission for inclusion in ERP Operating Limited Partnership's Current
Report on Form 8-K as described in Note 1, and is not intended to be a complete
presentation of the Property's revenue and expenses.

In our opinion, the Statement of Revenue and Certain Expenses referred to above
presents fairly, in all material respects, the revenue and certain expenses
described in Note 1 for the year ended December 31, 1996, in conformity with
generally accepted accounting principles.

                                                               ERNST & YOUNG LLP

Chicago, Illinois
May 16, 1997

                                       36


                                LINCOLN HARBOUR
                             STATEMENTS OF REVENUE
                             AND CERTAIN EXPENSES
                            (amounts in thousands)




                                         For the Period
                                        January 1, 1997 -        For the
                                         March 20, 1997        Year Ended
                                           (Unaudited)      December 31, 1996
                                        -----------------   -----------------
                                                      
REVENUE
    Rental Income                             $817               $3,062
                                              ----               ------


CERTAIN EXPENSES
    Property operating and maintenance         183                  871
    Real estate taxes and insurance            120                  447
    Management fees                             27                  114
                                              ----                -----
                                               330                1,432
                                              ----                -----

REVENUE IN EXCESS OF CERTAIN
  EXPENSES                                    $487               $1,630
                                              ====               ======




                            See accompanying notes.

                                      37


                                LINCOLN HARBOUR
                            NOTES TO STATEMENTS OF
                         REVENUE AND CERTAIN EXPENSES


Note 1 - Summary of Significant Accounting Policies

     The accompanying statements of revenue and certain expenses for the year
     ended December 31, 1996 and for the period January 1, 1997 through
     March 20, 1997 (unaudited) were prepared for purposes of complying with the
     rules and regulations of the Securities and Exchange Commission. The
     accompanying financial statements are not representative of the actual
     operations of Lincoln Harbour for the periods presented as certain
     expenses, which may not be comparable to the expenses to be incurred by ERP
     Operating Limited Partnership and its subsidiaries (the "Operating
     Partnership") in the proposed future operations of Lincoln Harbour, have
     been excluded. Expenses excluded consist of interest, depreciation and
     amortization, professional fees and other costs not directly related to the
     future operations of Lincoln Harbour.

     In preparation of the Operating Partnership's Statements of Revenue and
     Certain Expenses in conformity with generally accepted accounting
     principles, management makes estimates and assumptions that effect the
     reported amounts of revenues and expenses during the reporting period.
     Actual results could differ from these estimates.

     Rental income attributable to residential leases is recorded when due from 
     tenants, generally on a straight line basis.

     Lincoln Harbour had a management agreement with a management company
     unaffiliated with the Operating Partnership through the acquisition date to
     maintain and manage the operations of the apartment complex. Management
     fees were based on 3.75% of gross receipts. In 1996, all of the management
     fees were paid to an affiliate of the seller. Upon acquisition of Lincoln
     Harbour by the Operating Partnership, such management contract was
     cancelled at which time the Operating Partnership began to manage Lincoln
     Harbour.

Note 2 - Description of Property

     The following property is included in the statements of revenue and certain
     expenses:

 
 
                                                  Date         Number         Total
      Property Name          Location           Acquired      of Units    Investment (A)
      -------------          --------           --------      --------    --------------
                                                              
     Lincoln Harbour     Ft. Lauderdale,FL      3/20/97         324        $22,285,000
 

Notes:

(A)  Includes initial purchase price, closing costs, start up costs and amounts
     specified at date of purchase for future capital improvements.

                                      38

 
                         REPORT OF INDEPENDENT AUDITORS



The Partners of
ERP Operating Limited Partnership


We have audited the accompanying combined Statement of Revenue and Certain
Expenses of Club at the Green and Knights Castle (the Properties) for the year
ended December 31, 1996.  The combined Statement of Revenue and Certain Expenses
is the responsibility of the Properties' management.  Our responsibility is to
express an opinion on the combined Statement of Revenue and Certain Expenses
based on our audit.

We conducted our audit in accordance with generally accepted auditing standards.
Those standards require that we plan and perform the audit to obtain reasonable
assurance about whether the Statement of Revenue and Certain Expenses is free of
material misstatement.  An audit includes examining, on a test basis, evidence
supporting the amounts and disclosures made in the Statement of Revenue and
Certain Expenses. An audit also includes assessing the basis of accounting used
and significant estimates made by management, as well as evaluating the overall
presentation of the Statement of Revenue and Certain Expenses.  We believe that
our audit provides a reasonable basis for our opinion.

The accompanying combined Statement of Revenue and Certain Expenses was prepared
for the purpose of complying with the rules and regulations of the Securities
and Exchange Commission for inclusion in ERP Operating Limited Partnership's
Current Report on Form 8-K as described in Note 1, and is not intended to be a
complete presentation of the Properties' revenue and expenses.

In our opinion, the combined Statement of Revenue and Certain Expenses referred
to above presents fairly, in all material respects, the revenue and certain
expenses described in Note 1 for the year ended December 31, 1996, in conformity
with generally accepted accounting principles.

                                                               ERNST & YOUNG LLP

Chicago, Illinois
May 9, 1997

                                       39


                     CLUB AT THE GREEN AND KNIGHT'S CASTLE
                        COMBINED STATEMENTS OF REVENUE
                             AND CERTAIN EXPENSES
                            (amounts in thousands)




                                             For the
                                        Three Months Ended       For the
                                          March 31, 1997       Year Ended
                                           (Unaudited)      December 31, 1996
                                        ------------------  -----------------
                                                      
REVENUE
    Rental Income                             $1,033             $4,090
                                              ------             ------


CERTAIN EXPENSES
    Property operating and maintenance           251                960
    Real estate taxes and insurance              111                397
    Management fees                               36                142
                                              ------             ------
                                                 398              1,499
                                              ------             ------

REVENUE IN EXCESS OF CERTAIN
  EXPENSES                                      $635             $2,591
                                              ======             ======



                            See accompanying notes.

                                      40



                     CLUB AT THE GREEN AND KNIGHT'S CASTLE
                         NOTES TO COMBINED STATEMENTS
                        OF REVENUE AND CERTAIN EXPENSES

Note 1 - Summary of Significant Accounting Policies

     The accompanying combined statements of revenue and certain expenses for
     the year ended December 31, 1996 and the three months ended March 31, 1997
     (unaudited) were prepared for purposes of complying with the rules and
     regulations of the Securities and Exchange Commission. The accompanying
     financial statements are not representative of the actual operations of
     Club at the Green and Knight's Castle for the periods presented as certain
     expenses, which may not be comparable to the expenses to be incurred by 
     ERP Operating Limited Partnership and its subsidiaries (the "Operating
     Partnership") in the proposed future operations of Club at the Green and
     Knight's Castle, have been excluded. Expenses excluded consist of interest,
     depreciation and amortization, professional fees and other costs not
     directly related to the future operations of Club at the Green and Knight's
     Castle.

     In preparation of the Operating Partnership's Combined Statements of
     Revenue and Certain Expenses in conformity with generally accepted
     accounting principles, management makes estimates and assumptions that
     effect the reported amounts of revenues and expenses during the reporting
     period. Actual results could differ from these estimates.

     Rental income attributable to residential leases is recorded when due from 
     tenants, generally on a straight line basis.

     Club at the Green and Knight's Castle had a management agreement with a
     management company unaffiliated with the Operating Partnership through the
     acquisition dates to maintain and manage the operations of the apartment
     complexes. Management fees were based on 3.5% of gross receipts. In 1996,
     all of the management fees were paid to an affiliate of the seller. Upon
     acquisition of Club at the Green and Knight's Castle by the Operating
     Partnership, such management contract was cancelled at which time the
     Operating Partnership began to manage Club at the Green and Knight's 
     Castle.

Note 2 - Description of Properties

     The following properties are included in the combined statements of revenue
     and certain expenses:
 
 
                                             Date      Number        Total
       Property Name        Location        Acquired   of Units   Investment (A)
     -----------------    ---------------   --------   --------   --------------
                                                       
     Club at the Green    Beaverton, OR     3/28/97       254      $14,925,000
     Knight's Castle      Wilsonville, OR   3/28/97       296       16,027,000
                                                          ---      -----------
                                                          550      $30,952,000
                                                          ===      ===========
 

Notes:

(A)  Includes initial purchase price, closing costs, start up costs and amounts
     specified at date of purchase for future capital improvements.

                                      41

                                  SIGNATURES


Pursuant to the requirements of the Securities Exchange Act of 1934, the
Registrant has duly caused this report to be signed on its behalf by the
undersigned thereunto duly authorized.



                             ERP OPERATING LIMITED PARTNERSHIP
                             BY: EQUITY RESIDENTIAL PROPERTIES TRUST,
                                 ITS GENERAL PARTNER


     May 29, 1997            By: /s/ Michael J. McHugh
     ------------                -----------------------------------------------
        (Date)                       Michael J. McHugh
                                 Senior Vice President, Chief Accounting Officer
                                       and Treasurer

                                      42