CONSENT OF INDEPENDENT AUDITORS We consent to the incorporation by reference in the Registration Statement (Form S-3 No. 333-12213) of ERP Operating Limited Partnership and in the related Prospectus of our reports indicated below with respect to the financial statements indicated below included in this Current Report of ERP Operating Limited Partnership on Form 8-K. Financial Statements Date of Auditors Report -------------------- ----------------------- Statement of Revenue and Certain Expenses of Harborview for the year ended December 31, 1996 May 16, 1997 Statement of Revenue and Certain Expenses of Trails at Dominion for the year ended December 31, 1996 May 6, 1997 Statement of Revenue and Certain Expenses of Rincon for the year ended December 31, 1996 May 7, 1997 Statement of Revenue and Certain Expenses of Waterford at the Lakes for the year ended December 31, 1996 May 12, 1997 Statement of Revenue and Certain Expenses of Lincoln Harbour for the year ended December 31, 1996 May 16, 1997 Combined Statement of Revenue and Certain Expenses of Knights Castle and Club at the Green for the year ended December 31, 1996 May 9, 1997 Combined Statement of Revenue and Certain Expenses of the Zell/Merrill Properties for the three years in the period ended December 31, 1996 March 25, 1997 Ernst & Young LLP Chicago, Illinois May 27, 1997 43