    <SEC-DOCUMENT>0001075415-18-000030-index.html : 20180807
    <SEC-HEADER>0001075415-18-000030.hdr.sgml : 20180807
    <ACCEPTANCE-DATETIME>20180807081337
    ACCESSION NUMBER:		0001075415-18-000030
    CONFORMED SUBMISSION TYPE:	8-K
    PUBLIC DOCUMENT COUNT:		46
    CONFORMED PERIOD OF REPORT:	20180807
    ITEM INFORMATION:		Results of Operations and Financial Condition
    ITEM INFORMATION:		Financial Statements and Exhibits
    FILED AS OF DATE:		20180807
    DATE AS OF CHANGE:		20180807

    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:		18996361

    	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>
    <DOCUMENT>
    <TYPE>8-K
    <SEQUENCE>1
    <FILENAME>snh_063018x8-k.htm
    <DESCRIPTION>8-K
    <TEXT>
    Document 1 - file: snh_063018x8-k.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.1
    <SEQUENCE>2
    <FILENAME>a991_snhx063018xearningsre.htm
    <DESCRIPTION>EXHIBIT 99.1
    <TEXT>
    Document 2 - file: a991_snhx063018xearningsre.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.2
    <SEQUENCE>3
    <FILENAME>snh063018supplemen835.htm
    <DESCRIPTION>EXHIBIT 99.2
    <TEXT>
    Document 3 - file: snh063018supplemen835.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>4
    <FILENAME>snh063018supplemen835001.jpg
    <TEXT>
    Document 4 - file: snh063018supplemen835001.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>5
    <FILENAME>snh063018supplemen835002.jpg
    <TEXT>
    Document 5 - file: snh063018supplemen835002.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>6
    <FILENAME>snh063018supplemen835003.jpg
    <TEXT>
    Document 6 - file: snh063018supplemen835003.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>7
    <FILENAME>snh063018supplemen835004.jpg
    <TEXT>
    Document 7 - file: snh063018supplemen835004.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>8
    <FILENAME>snh063018supplemen835005.jpg
    <TEXT>
    Document 8 - file: snh063018supplemen835005.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>9
    <FILENAME>snh063018supplemen835006.jpg
    <TEXT>
    Document 9 - file: snh063018supplemen835006.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>10
    <FILENAME>snh063018supplemen835007.jpg
    <TEXT>
    Document 10 - file: snh063018supplemen835007.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>11
    <FILENAME>snh063018supplemen835008.jpg
    <TEXT>
    Document 11 - file: snh063018supplemen835008.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>12
    <FILENAME>snh063018supplemen835009.jpg
    <TEXT>
    Document 12 - file: snh063018supplemen835009.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>13
    <FILENAME>snh063018supplemen835010.jpg
    <TEXT>
    Document 13 - file: snh063018supplemen835010.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>14
    <FILENAME>snh063018supplemen835011.jpg
    <TEXT>
    Document 14 - file: snh063018supplemen835011.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>15
    <FILENAME>snh063018supplemen835012.jpg
    <TEXT>
    Document 15 - file: snh063018supplemen835012.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>16
    <FILENAME>snh063018supplemen835013.jpg
    <TEXT>
    Document 16 - file: snh063018supplemen835013.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>17
    <FILENAME>snh063018supplemen835014.jpg
    <TEXT>
    Document 17 - file: snh063018supplemen835014.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>18
    <FILENAME>snh063018supplemen835015.jpg
    <TEXT>
    Document 18 - file: snh063018supplemen835015.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>19
    <FILENAME>snh063018supplemen835016.jpg
    <TEXT>
    Document 19 - file: snh063018supplemen835016.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>20
    <FILENAME>snh063018supplemen835017.jpg
    <TEXT>
    Document 20 - file: snh063018supplemen835017.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>21
    <FILENAME>snh063018supplemen835018.jpg
    <TEXT>
    Document 21 - file: snh063018supplemen835018.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>22
    <FILENAME>snh063018supplemen835019.jpg
    <TEXT>
    Document 22 - file: snh063018supplemen835019.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>23
    <FILENAME>snh063018supplemen835020.jpg
    <TEXT>
    Document 23 - file: snh063018supplemen835020.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>24
    <FILENAME>snh063018supplemen835021.jpg
    <TEXT>
    Document 24 - file: snh063018supplemen835021.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>25
    <FILENAME>snh063018supplemen835022.jpg
    <TEXT>
    Document 25 - file: snh063018supplemen835022.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>26
    <FILENAME>snh063018supplemen835023.jpg
    <TEXT>
    Document 26 - file: snh063018supplemen835023.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>27
    <FILENAME>snh063018supplemen835024.jpg
    <TEXT>
    Document 27 - file: snh063018supplemen835024.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>28
    <FILENAME>snh063018supplemen835025.jpg
    <TEXT>
    Document 28 - file: snh063018supplemen835025.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>29
    <FILENAME>snh063018supplemen835026.jpg
    <TEXT>
    Document 29 - file: snh063018supplemen835026.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>30
    <FILENAME>snh063018supplemen835027.jpg
    <TEXT>
    Document 30 - file: snh063018supplemen835027.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>31
    <FILENAME>snh063018supplemen835028.jpg
    <TEXT>
    Document 31 - file: snh063018supplemen835028.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>32
    <FILENAME>snh063018supplemen835029.jpg
    <TEXT>
    Document 32 - file: snh063018supplemen835029.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>33
    <FILENAME>snh063018supplemen835030.jpg
    <TEXT>
    Document 33 - file: snh063018supplemen835030.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>34
    <FILENAME>snh063018supplemen835031.jpg
    <TEXT>
    Document 34 - file: snh063018supplemen835031.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>35
    <FILENAME>snh063018supplemen835032.jpg
    <TEXT>
    Document 35 - file: snh063018supplemen835032.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>36
    <FILENAME>snh063018supplemen835033.jpg
    <TEXT>
    Document 36 - file: snh063018supplemen835033.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>37
    <FILENAME>snh063018supplemen835034.jpg
    <TEXT>
    Document 37 - file: snh063018supplemen835034.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>38
    <FILENAME>snh063018supplemen835035.jpg
    <TEXT>
    Document 38 - file: snh063018supplemen835035.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>39
    <FILENAME>snh063018supplemen835036.jpg
    <TEXT>
    Document 39 - file: snh063018supplemen835036.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>40
    <FILENAME>snh063018supplemen835037.jpg
    <TEXT>
    Document 40 - file: snh063018supplemen835037.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>41
    <FILENAME>snh063018supplemen835038.jpg
    <TEXT>
    Document 41 - file: snh063018supplemen835038.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>42
    <FILENAME>snh063018supplemen835039.jpg
    <TEXT>
    Document 42 - file: snh063018supplemen835039.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>43
    <FILENAME>snh063018supplemen835040.jpg
    <TEXT>
    Document 43 - file: snh063018supplemen835040.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>44
    <FILENAME>snh063018supplemen835041.jpg
    <TEXT>
    Document 44 - file: snh063018supplemen835041.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>45
    <FILENAME>snhfooterlogoa01.jpg
    <TEXT>
    Document 45 - file: snhfooterlogoa01.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>46
    <FILENAME>snhlog2.gif
    <TEXT>
    Document 46 - file: snhlog2.gif

    </DOCUMENT>
    </SEC-DOCUMENT>