    <SEC-DOCUMENT>0001193125-23-105106-index.html : 20230418
    <SEC-HEADER>0001193125-23-105106.hdr.sgml : 20230418
    <ACCEPTANCE-DATETIME>20230418170139
    ACCESSION NUMBER:		0001193125-23-105106
    CONFORMED SUBMISSION TYPE:	ARS
    PUBLIC DOCUMENT COUNT:		1
    CONFORMED PERIOD OF REPORT:	20221231
    FILED AS OF DATE:		20230418
    DATE AS OF CHANGE:		20230418
    EFFECTIVENESS DATE:		20230418

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			EQUITY RESIDENTIAL
    		CENTRAL INDEX KEY:			0000906107
    		STANDARD INDUSTRIAL CLASSIFICATION:	REAL ESTATE INVESTMENT TRUSTS [6798]
    		IRS NUMBER:				363877868
    		STATE OF INCORPORATION:			MD
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		ARS
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-12252
    		FILM NUMBER:		23827595

    	BUSINESS ADDRESS:
    		STREET 1:		EQUITY RESIDENTIAL
    		STREET 2:		TWO NORTH RIVERSIDE PLAZA, SUITE 400
    		CITY:			CHICAGO
    		STATE:			IL
    		ZIP:			60606
    		BUSINESS PHONE:		3129281178

    	MAIL ADDRESS:
    		STREET 1:		TWO NORTH RIVERSIDE PLAZA
    		STREET 2:		SUITE 400
    		CITY:			CHICAGO
    		STATE:			IL
    		ZIP:			60606

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	EQUITY RESIDENTIAL PROPERTIES TRUST
    		DATE OF NAME CHANGE:	19930524

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			ERP OPERATING LTD PARTNERSHIP
    		CENTRAL INDEX KEY:			0000931182
    		STANDARD INDUSTRIAL CLASSIFICATION:	REAL ESTATE INVESTMENT TRUSTS [6798]
    		IRS NUMBER:				363894853
    		STATE OF INCORPORATION:			MD
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		ARS
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	000-24920
    		FILM NUMBER:		23827596

    	BUSINESS ADDRESS:
    		STREET 1:		TWO N RIVERSIDE PLZ
    		STREET 2:		STE 400
    		CITY:			CHICAGO
    		STATE:			IL
    		ZIP:			60606
    		BUSINESS PHONE:		3124741300

    	MAIL ADDRESS:
    		STREET 1:		TWO N RIVERSIDE PLAZA
    		STREET 2:		SUITE 450
    		CITY:			CHICAGO
    		STATE:			IL
    		ZIP:			60606
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>ARS
    <SEQUENCE>1
    <FILENAME>d367748dars.pdf
    <DESCRIPTION>ARS
    <TEXT>
    Document 1 - file: d367748dars.pdf

    </DOCUMENT>
    </SEC-DOCUMENT>