<SEC-DOCUMENT>0001104659-17-056390-index.html : 20170911
<SEC-HEADER>0001104659-17-056390.hdr.sgml : 20170911
<ACCEPTANCE-DATETIME>20170911060431
ACCESSION NUMBER:		0001104659-17-056390
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		15
CONFORMED PERIOD OF REPORT:	20170911
ITEM INFORMATION:		Regulation FD Disclosure
ITEM INFORMATION:		Financial Statements and Exhibits
FILED AS OF DATE:		20170911
DATE AS OF CHANGE:		20170911

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Equity Commonwealth
		CENTRAL INDEX KEY:			0000803649
		STANDARD INDUSTRIAL CLASSIFICATION:	REAL ESTATE INVESTMENT TRUSTS [6798]
		IRS NUMBER:				046558834
		STATE OF INCORPORATION:			MD
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		8-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-09317
		FILM NUMBER:		171077850

	BUSINESS ADDRESS:	
		STREET 1:		TWO NORTH RIVERSIDE PLAZA
		STREET 2:		SUITE 2100
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60606
		BUSINESS PHONE:		312.646.2800

	MAIL ADDRESS:	
		STREET 1:		TWO NORTH RIVERSIDE PLAZA
		STREET 2:		SUITE 2100
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60606

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	CommonWealth REIT
		DATE OF NAME CHANGE:	20100702

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	HRPT PROPERTIES TRUST
		DATE OF NAME CHANGE:	19980701

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	HEALTH & RETIREMENT PROPERTIES TRUST
		DATE OF NAME CHANGE:	19940811
</SEC-HEADER>
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<TYPE>8-K
<SEQUENCE>1
<FILENAME>a17-21546_18k.htm
<DESCRIPTION>8-K
<TEXT>
Document 1 - file: a17-21546_18k.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>2
<FILENAME>a17-21546_1ex99d1.htm
<DESCRIPTION>EX-99.1
<TEXT>
Document 2 - file: a17-21546_1ex99d1.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>g215461mmi001.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 3 - file: g215461mmi001.gif

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<DOCUMENT>
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<SEQUENCE>4
<FILENAME>g215461mmi002.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 4 - file: g215461mmi002.gif

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<SEQUENCE>5
<FILENAME>g215461mmi003.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 5 - file: g215461mmi003.gif

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<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>g215461mmi004.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 6 - file: g215461mmi004.gif

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<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>7
<FILENAME>g215461mmi005.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 7 - file: g215461mmi005.gif

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<TYPE>GRAPHIC
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<FILENAME>g215461mmi006.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 8 - file: g215461mmi006.gif

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<SEQUENCE>9
<FILENAME>g215461mmi007.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 9 - file: g215461mmi007.gif

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<SEQUENCE>10
<FILENAME>g215461mmi008.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 10 - file: g215461mmi008.gif

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<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>11
<FILENAME>g215461mmi009.gif
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<TEXT>
Document 11 - file: g215461mmi009.gif

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<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>12
<FILENAME>g215461mmi010.gif
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<TEXT>
Document 12 - file: g215461mmi010.gif

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>13
<FILENAME>g215461mmi011.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 13 - file: g215461mmi011.gif

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>14
<FILENAME>g215461mmi012.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 14 - file: g215461mmi012.gif

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>15
<FILENAME>g215461mmi013.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 15 - file: g215461mmi013.gif

</DOCUMENT>
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