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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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 6KQ4NDBIVzu5BvA74ew1iw==

<SEC-DOCUMENT>0001181431-04-048241.txt : 20041020
<SEC-HEADER>0001181431-04-048241.hdr.sgml : 20041020
<ACCEPTANCE-DATETIME>20041020182651
ACCESSION NUMBER:		0001181431-04-048241
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20041020
FILED AS OF DATE:		20041020
DATE AS OF CHANGE:		20041020

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Sunstone Hotel Investors, Inc.
		CENTRAL INDEX KEY:			0001295810
		STANDARD INDUSTRIAL CLASSIFICATION:	HOTELS & MOTELS [7011]
		IRS NUMBER:				201296886
		STATE OF INCORPORATION:			MD
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		903 CALLE AMANECER, SUITE 100
		CITY:			SAN CLEMENTE
		STATE:			CA
		ZIP:			92673
		BUSINESS PHONE:		949-369-4000

	MAIL ADDRESS:	
		STREET 1:		903 CALLE AMANECER, SUITE 100
		CITY:			SAN CLEMENTE
		STATE:			CA
		ZIP:			92673

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			ALTER ROBERT A
		CENTRAL INDEX KEY:			0001083436

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-32319
		FILM NUMBER:		041088269

	BUSINESS ADDRESS:	
		STREET 1:		SUNSTONE HOTEL INVESTORS INC
		STREET 2:		903 CALLE AMANECER
		CITY:			SAN CLEMENTE
		STATE:			CA
		ZIP:			92673-6212
		BUSINESS PHONE:		9493694309

	MAIL ADDRESS:	
		STREET 1:		SUNSTONE HOTEL INVESTORS INC
		STREET 2:		903 CALLE AMANECER
		CITY:			SAN CLAMENTINE
		STATE:			CA
		ZIP:			92673-6212
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>rrd55189.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2004-10-20</periodOfReport>

    <noSecuritiesOwned>1</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001295810</issuerCik>
        <issuerName>Sunstone Hotel Investors, Inc.</issuerName>
        <issuerTradingSymbol>SHO</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001083436</rptOwnerCik>
            <rptOwnerName>ALTER ROBERT A</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>903 CALLE AMANECER</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 100</rptOwnerStreet2>
            <rptOwnerCity>SAN CLEMENTE</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>92673</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chief Executive Officer</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <ownerSignature>
        <signatureName>Robert A. Alter</signatureName>
        <signatureDate>2004-10-20</signatureDate>
    </ownerSignature>
</ownershipDocument>

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