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 Auditor's Report -------------------- -------------------------- Combined Statement of Revenue and Certain August 15, 1997 Expenses of the Ameritech Pension Trust Probable Properties for the year ended December 31, 1996 Combined Statement of Revenue and Certain September 5, 1997 Expenses of Paces on the Green and Paces Station for the year ended December 31, 1996 Ernst & Young LLP Chicago, Illinois September 18, 1997