UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

Under the Securities Exchange Act of 1934
(Amendment No. 1)*

Senior Housing Properties Trust
(Name of Issuer)

COMMON
(Title of Class of Securities)

81721M109
(CUSIP Number)

Date of Event which Requires Filing of this Statement

November 30, 2008

Check the appropriate box to designate the rule pursuant to which the Schedule
is filed:

[x] Rule 13d-1(b)
[ ] Rule 13d-1(c)
[ ] Rule 13d-1(d)

* The remainder of this cover page shall be filled out for a reporting person's initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in prior coverage.

The information required in the remainder of this cover page shall not be deemed to be "filed" for the purpose of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

SEC 1745 (12-02)

Schedule 13G (continued)

CUSIP No. 81721M109
--------------------------------------------------------------------------------
 1 NAME OF REPORTING PERSON
 S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

 Cohen & Steers, Inc. 14-1904657
--------------------------------------------------------------------------------
 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
 (a) [ ]
 (b) [x]
--------------------------------------------------------------------------------
 3 SEC USE ONLY


--------------------------------------------------------------------------------
 4 CITIZENSHIP OR PLACE OF ORGANIZATION

 Delaware
--------------------------------------------------------------------------------
 NUMBER OF 5 SOLE VOTING POWER
 SHARES 1,625,435
 BENEFICIALLY -------------------------------------------------------------
 OWNED BY 6 SHARED VOTING POWER
 EACH 0
 REPORTING -------------------------------------------------------------
 PERSON 7 SOLE DISPOSITIVE POWER
 WITH 1,625,435
 -------------------------------------------------------------
 8 SHARED DISPOSITIVE POWER
 0
--------------------------------------------------------------------------------
 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

 1,625,435
--------------------------------------------------------------------------------
 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*

 [ ]
--------------------------------------------------------------------------------
 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

 1.42%
--------------------------------------------------------------------------------
 12 TYPE OF REPORTING PERSON*

 HC, CO
--------------------------------------------------------------------------------
 *SEE INSTRUCTIONS BEFORE FILLING OUT



Schedule 13G (continued)

CUSIP No. 81721M109
--------------------------------------------------------------------------------
 1 NAME OF REPORTING PERSON
 S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

 Cohen & Steers Capital Management, Inc. 13-3353336
--------------------------------------------------------------------------------
 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
 (a) [ ]
 (b) [x]
--------------------------------------------------------------------------------
 3 SEC USE ONLY


--------------------------------------------------------------------------------
 4 CITIZENSHIP OR PLACE OF ORGANIZATION

 New York
--------------------------------------------------------------------------------
 NUMBER OF 5 SOLE VOTING POWER
 SHARES 1,625,435
 BENEFICIALLY -------------------------------------------------------------
 OWNED BY 6 SHARED VOTING POWER
 EACH 0
 REPORTING -------------------------------------------------------------
 PERSON 7 SOLE DISPOSITIVE POWER
 WITH 1,625,435
 -------------------------------------------------------------
 8 SHARED DISPOSITIVE POWER
 0
--------------------------------------------------------------------------------
 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

 1,625,435
--------------------------------------------------------------------------------
 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*

 [ ]
--------------------------------------------------------------------------------
 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

 1.42%
--------------------------------------------------------------------------------
 12 TYPE OF REPORTING PERSON*

 IA, CO
--------------------------------------------------------------------------------
 *SEE INSTRUCTIONS BEFORE FILLING OUT



Schedule 13G (continued)


Item 1.

 (a) Name of Issuer:
 Senior Housing Properties Trust

 (b) Address of Issuer's Principal Executive Offices:
 400 Center Street
 Newton, MA 02458
Item 2.

 (a) Name of Persons Filing:
 Cohen & Steers, Inc.
 Cohen & Steers Capital Management, Inc.
 (b) Address of Principal Business Office for Cohen & Steers, Inc.
 and Cohen & Steers Capital Management, Inc. is:
 280 Park Avenue
 10th Floor
 New York, NY 10017
 (c) Citizenship:
 Cohen & Steers, Inc: Delaware corporation
 Cohen & Steers Capital Management, Inc: New York corporation
 (d) Title of Class Securities:
 Commmon
 (e) CUSIP Number:
 81721M109


Item 3. If this statement is filed pursuant to Rule 13d-l(b), or
 13d-2(b), check whether the person filing is a

 (a) [ ] Broker or Dealer registered under Section 15 of the Act

 (b) [ ] Bank as defined in Section 3(a)(6) of the Act

 (c) [ ] Insurance Company as defined in section 3(a)(19) of
 the Act

 (d) [ ] Investment Company registered under Section 8 of the
 Investment Company Act

 (e) [x] An investment advisor in accordance with Section
 240.13d-1(b)(1)(ii)(E)

 (f) [ ] An employee benefit plan or endowment fund in accordance
 with 240.13d-1(b)(1)(ii)(F)

 (g) [x] A parent holding company or control person in accordance
 with Section 240.13d-l(b)(1)(ii)(G)

 (h) [ ] A savings association as defined in Section 3(b) of the
 Federal Deposit Insurance Act (12 U.S.C. 1813)

 (i) [ ] A church plan that is excluded from the definition of an
 investment company under section 3(c)(14) of the
 Investment Company Act of 1940 (15U.S.C. 80a-3)

 (j) [ ] Group, in accordance with Section 240.13d-1(b)(l)(ii)(J)



Item 4. OWNERSHIP:

 (a) Amount Beneficially Owned as of November 30, 2008:

 See row 9 on cover sheet

 (b) Percent of Class:

 See row 11 on cover sheet


 (c) Number of shares as to which such person has:
 (i) sole power to vote or direct the vote:
 See row 5 on cover sheet

 (ii) shared power to vote or direct the vote:
 See row 6 on cover sheet

 (iii) sole power to dispose or to direct
 the disposition of:
 See row 7 on cover sheet

 (iv) shared power to dispose or direct
 the disposition of:
 See row 8 on cover sheet


Item 5. OWNERSHIP OF 5% OR LESS OF A CLASS
 Yes

Item 6. OWNERSHIP OF MORE THAN 5% ON BEHALF OF ANOTHER PERSON
 N/A
Item 7. IDENTIFICATION AND CLASSIFICATION OF THE SUBSIDIARY WHICH
 ACQUIRED THE SECURITY BEING REPORTED ON BY THE PARENT
 HOLDING COMPANY

 Cohen & Steers, Inc holds a 100% interest in Cohen & Steers Capital
 Management, Inc., an investment advisor registerd under Section 203
 of the Investment Advisers Act.

Item 8. IDENTIFICATION AND CLASSIFICATION OF MEMBERS OF THE GROUP

 Cohen & Steers, Inc holds a 100% interest in Cohen & Steers Capital
 Management, Inc., an investment advisor registerd under Section 203
 of the Investment Advisers Act.

Item 9 NOTICE OF DISSOLUTION OF GROUP:
 Not Applicable



Item 10 Certification

 By signing below I certify that, to the best of my knowledge and
belief,the securities referred to above were acquired and are held in the
ordinary course of business and were not acquired and are not held for the
purpose of or with the effect of changing or influencing the control of
the issuer of the securities and were not acquired and are not held in
connection with or as a participant in any transaction having that purpose
or effect.


Signature


 After reasonable inquiry and to the best of my knowledge and belief,
I certify that the information set forth in this statement is true,
complete and correct.

Date: December 10, 2008


/s/Lisa Phelan
---------------------------------------------------
Signature


Lisa Phelan, Senior Vice President, Chief Compliance Officer
Cohen & Steers, Inc.
Cohen & Steers Capital Management, Inc.
---------------------------------------------------
Name and Title



 JOINT FILING AGREEMENT

 In accordance with Rule 13d-1(k) promulgated under the Securities Exchange
Act of 1934, as amended, the undersigned hereby agree to the joint filing with
all other Reporting Persons (as such term is defined in the Schedule 13G
referred to below) on behalf of each of them of a Statement on Schedule 13G
including amendments thereto) with respect to the common shares of Senior
Housing Properties Trust,and that this Agreement may be included as an
Exhibit to such joint filing. This Agreement may be executed in any number of
counterparts, all of which together shall constitute one and the same
instrument.

 IN WITNESS WHEREOF, the undersigned hereby execute this Agreement as of
December 10, 2008.

 COHEN & STEERS, INC.

 /s/Lisa Phelan
 By:-----------------------------------------
 Name: Lisa Phelan
 Title: Senior Vice President
 Chief Compliance Officer



 COHEN & STEERS CAPITAL MANAGEMENT, INC.

 /s/Lisa Phelan
 By:----------------------------------------
 Name: Lisa Phelan
 Title: Senior Vice President
 Chief Compliance Officer

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