Consent of Independent Auditors We consent to the incorporation by reference in the Registration Statement (Form S-3 No. 333-45557) 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 April 30, 1998 Sonterra at Foothill Ranch for the year ended December 31, 1997 Combined Statement of Revenue and Certain April 30, 1998 Expenses of the Lincoln Property Company Probable Properties for the year ended December 31, 1997 Statement of Revenue and Certain Expenses of May 1, 1998 The Emerson Place Apartments for the year ended December 31, 1997 Combined Statement of Revenue and Certain May 1, 1998 Expenses of The Magnum Probable Properties for the year ended December 31, 1997 Combined Statement of Revenue and Certain May 29, 1998 Expenses of the Frederick Probable Properties for the year ended December 31, 1997 Statement of Revenue and Certain Expenses of June 2, 1998 Harbor Pointe for the year ended December 31, 1997 Statement of Revenue and Certain Expenses of June 4, 1998 The Fairfield for the year ended December 31, 1997 Combined Statement of Revenue and Certain June 4, 1998 Expenses of the Lakes at Vinings Apartments and Martins Landing Apartments Probable Properties for the year ended December 31, 1997 FINANCIAL STATEMENTS DATE OF AUDITORS' REPORT - -------------------------------------------------------------------------------- Statement of Revenue and Certain Expenses of June 9, 1998 the Northridge Apartments for the year ended December 31, 1997 Combined Statement of Revenue and Certain June 10, 1998 Expenses of TCRS Properties for the year ended December 31, 1997 Statement of Revenue and Certain Expenses of June 11, 1998 the Portside Towers Apartments for the year ended December 31, 1997 Statement of Revenue and Certain Expenses of June 11, 1998 The Coconut Palm Club Apartments for the year ended December 31, 1997 Combined Statement of Revenue and Certain June 18, 1998 Expenses of The Focus Group Properties for the year ended December 31, 1997 ERNST & YOUNG LLP Chicago, Illinois July 9, 1998