    <SEC-DOCUMENT>0001075415-17-000025-index.html : 20171109
    <SEC-HEADER>0001075415-17-000025.hdr.sgml : 20171109
    <ACCEPTANCE-DATETIME>20171109080820
    ACCESSION NUMBER:		0001075415-17-000025
    CONFORMED SUBMISSION TYPE:	8-K
    PUBLIC DOCUMENT COUNT:		45
    CONFORMED PERIOD OF REPORT:	20171109
    ITEM INFORMATION:		Results of Operations and Financial Condition
    ITEM INFORMATION:		Financial Statements and Exhibits
    FILED AS OF DATE:		20171109
    DATE AS OF CHANGE:		20171109

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			SENIOR HOUSING PROPERTIES TRUST
    		CENTRAL INDEX KEY:			0001075415
    		STANDARD INDUSTRIAL CLASSIFICATION:	REAL ESTATE INVESTMENT TRUSTS [6798]
    		IRS NUMBER:				043445278
    		STATE OF INCORPORATION:			MD
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		8-K
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-15319
    		FILM NUMBER:		171188339

    	BUSINESS ADDRESS:
    		STREET 1:		C/O THE RMR GROUP
    		STREET 2:		TWO NEWTON PL., 255 WASH. ST., STE. 300
    		CITY:			NEWTON
    		STATE:			MA
    		ZIP:			02458
    		BUSINESS PHONE:		(617) 796-8350

    	MAIL ADDRESS:
    		STREET 1:		C/O THE RMR GROUP
    		STREET 2:		TWO NEWTON PL., 255 WASH. ST., STE. 300
    		CITY:			NEWTON
    		STATE:			MA
    		ZIP:			02458
    </SEC-HEADER>
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