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    CONFORMED SUBMISSION TYPE:	DEF 14A
    PUBLIC DOCUMENT COUNT:		24
    CONFORMED PERIOD OF REPORT:	20170518
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    DATE AS OF CHANGE:		20170228
    EFFECTIVENESS DATE:		20170228

    FILER:

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

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    		SEC ACT:		1934 Act
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    		STREET 2:		TWO NEWTON PL., 255 WASH. ST., STE. 300
    		CITY:			NEWTON
    		STATE:			MA
    		ZIP:			02458
    		BUSINESS PHONE:		(617) 796-8350

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    		STREET 2:		TWO NEWTON PL., 255 WASH. ST., STE. 300
    		CITY:			NEWTON
    		STATE:			MA
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