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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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 gV96T2GekvAhDc5BKfQFIw==

<SEC-DOCUMENT>0001033984-10-000004.txt : 20100212
<SEC-HEADER>0001033984-10-000004.hdr.sgml : 20100212
<ACCEPTANCE-DATETIME>20100212101749
ACCESSION NUMBER:		0001033984-10-000004
CONFORMED SUBMISSION TYPE:	SC 13G/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20100212
DATE AS OF CHANGE:		20100212

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Extra Space Storage Inc.
		CENTRAL INDEX KEY:			0001289490
		STANDARD INDUSTRIAL CLASSIFICATION:	REAL ESTATE INVESTMENT TRUSTS [6798]
		IRS NUMBER:				201076777
		STATE OF INCORPORATION:			MD
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-80029
		FILM NUMBER:		10595090

	BUSINESS ADDRESS:	
		STREET 1:		2795 COTTONWOOD PARKWAY, SUITE 400
		CITY:			SALT LAKE CITY
		STATE:			UT
		ZIP:			84121
		BUSINESS PHONE:		801-562-5556

	MAIL ADDRESS:	
		STREET 1:		2795 COTTONWOOD PARKWAY, SUITE 400
		CITY:			SALT LAKE CITY
		STATE:			UT
		ZIP:			84121

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ING CLARION REAL ESTATE SECURITIES LLC
		CENTRAL INDEX KEY:			0001033984
		STANDARD INDUSTRIAL CLASSIFICATION:	UNKNOWN SIC - 0000 [0000]
		IRS NUMBER:				232802869
		STATE OF INCORPORATION:			PA
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A

	BUSINESS ADDRESS:	
		STREET 1:		201 KING OF PRUSSIA RD
		STREET 2:		SUITE 600
		CITY:			RADNOR
		STATE:			PA
		ZIP:			19087
		BUSINESS PHONE:		6109952500

	MAIL ADDRESS:	
		STREET 1:		201 KING OF PRUSSIA ROAD
		STREET 2:		SUITE 600
		CITY:			RADNOR
		STATE:			PA
		ZIP:			19087

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ING CLARION REAL ESTATE SECURITIES/N L.P.
		DATE OF NAME CHANGE:	20050812

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	CLARION CRA SECURITIES
		DATE OF NAME CHANGE:	20000811

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	CRA REAL ESTATE SECURITIES LP/PA
		DATE OF NAME CHANGE:	19980227
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G/A
<SEQUENCE>1
<FILENAME>extraspace123109.txt
<DESCRIPTION>13G AMENDMENT 123109
<TEXT>
APP. E4				REGULATION OF INVESTMENT ADVISORS

CUSIP No. 30225T102				Page___1__of__3___Pages

________________________________________________________________________

1.  NAME OF REPORTING PERSON
     S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
		 ING Clarion Real Estate Securities, LLC			232802869
2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

(a)____
(b)____
3. SEC USE ONLY

4. CITIZENSHIP OR PLACE OF ORGANIZATION
201 King of Prussia Rd, Suite 600, Radnor, PA  19087


NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH


5. SOLE VOTING POWER
        2,865,370 shares, sole voting power

6. SHARED VOTING POWER
2,200 shares, shared voting power

7. SOLE DISPOSITIVE POWER
7,177,146 shares, sole dispositive power

8. SHARED DISPOSITIVE POWER
No shares under shared dispositive power

9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
7,177,146 shares

10.  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*

11.  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
8.30%

12.  TYPE OF REPORTING PERSON*
IA














SCHEDULE 13G						APP. E4

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



				SCHEDULE 13G

			Under the Securities Exchange Act of 1934
			           (Amendment)*
			   	Extra Space Storage Inc.
				(Name of Issuer)
				Ordinary Shares
			          (Title of Class of Securities)
				   30225T102
				(Cusip Number)




Sec 1745 (6-88)



					E4-1


Items
Item 1
(a) Extra Space Storage Inc.
(b) 2795 Cottonwood Parkway, Suite 400, Salt Lake City, UT  84121

Item 2
(a) ING Clarion Real Estate Securities, LLC
(b) 201 King of Prussia Rd, Suite 600, Radnor, PA  19087
(c) Organized in the State of Delaware
(d) Ordinary Shares
(e) 30225T102

Item 3
(a) Investment Adviser registered under section 203 of the
      Investment Advisers Act of 1940

Item 4
(a)  7,177,146 shares
(b)  8.30%
(c)
   (i.)		2,865,370 shares, sole voting power
   (ii.)		2,200 shares, shared voting power
   (iii.)	7,177,146 shares, sole dispositive power
   (iv.)	No shares, shared dispositive power

Item 5
N/A

Item 6
N/A

Item 7
N/A

Item 8
N/A

Item 9
N/A

Item 10
Robert S Tull, Chief Compliance Officer

</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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