-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 H6ipmY8QTPkxB7E6IEVznHOkmN6yENfNCrYZHbxT2NKRvdu5BAulTLv0QOIOw1o0
 mM1sBR6e1NtL2PZ7fHFI6A==

<SEC-DOCUMENT>0001019056-05-001358.txt : 20051230
<SEC-HEADER>0001019056-05-001358.hdr.sgml : 20051230
<ACCEPTANCE-DATETIME>20051230172843
ACCESSION NUMBER:		0001019056-05-001358
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20051228
FILED AS OF DATE:		20051230
DATE AS OF CHANGE:		20051230

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			COST PLUS INC/CA/
		CENTRAL INDEX KEY:			0000798955
		STANDARD INDUSTRIAL CLASSIFICATION:	RETAIL-HOME FURNITURE, FURNISHINGS & EQUIPMENT STORES [5700]
		IRS NUMBER:				941067973
		STATE OF INCORPORATION:			CA
		FISCAL YEAR END:			0130

	BUSINESS ADDRESS:	
		STREET 1:		200 FOURTH STREET OAKLAND
		STREET 2:		SEE ADDRESS LISTED ABOVE
		CITY:			OAKLAND
		STATE:			CA
		ZIP:			94607
		BUSINESS PHONE:		5108937300

	MAIL ADDRESS:	
		STREET 1:		200 FOURTH STREET OAKLAND
		STREET 2:		SEE ADDRESS LISTED ABOVE
		CITY:			OAKLAND
		STATE:			CA
		ZIP:			94607

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			GLENHILL CAPITAL LP
		CENTRAL INDEX KEY:			0001137373
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-14970
		FILM NUMBER:		051295308

	BUSINESS ADDRESS:	
		STREET 1:		598 MADISON AVENUE 12TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022
		BUSINESS PHONE:		646-432-0600

	MAIL ADDRESS:	
		STREET 1:		598 MADISON AVENUE 12TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			GLENHILL ADVISORS LLC
		CENTRAL INDEX KEY:			0001137521

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-14970
		FILM NUMBER:		051295310

	BUSINESS ADDRESS:	
		STREET 1:		598 MADISON AVE
		STREET 2:		12TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022
		BUSINESS PHONE:		646-432-0600

	MAIL ADDRESS:	
		STREET 1:		598 MADISON AVE
		STREET 2:		12TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022

	FORMER NAME:	
		FORMER CONFORMED NAME:	KREVLIN ADVISORS LLC
		DATE OF NAME CHANGE:	20010402

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			GLENHILL CAPITAL MANAGEMENT LLC
		CENTRAL INDEX KEY:			0001137522

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-14970
		FILM NUMBER:		051295309

	BUSINESS ADDRESS:	
		STREET 1:		598 MADISON AVE
		STREET 2:		12TH FL
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022
		BUSINESS PHONE:		6464320600

	MAIL ADDRESS:	
		STREET 1:		598 MADISON AVE
		STREET 2:		12TH FL
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022

	FORMER NAME:	
		FORMER CONFORMED NAME:	GJK CAPITAL MANAGEMENT LLC
		DATE OF NAME CHANGE:	20010402

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			KREVLIN GLENN J
		CENTRAL INDEX KEY:			0001159120

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-14970
		FILM NUMBER:		051295311

	BUSINESS ADDRESS:	
		STREET 1:		650 MADISON AVENUE
		STREET 2:		26TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022
		BUSINESS PHONE:		646-432-0600

	MAIL ADDRESS:	
		STREET 1:		598 MADISON AVENUE
		STREET 2:		12TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2005-12-28</periodOfReport>

    <issuer>
        <issuerCik>0000798955</issuerCik>
        <issuerName>COST PLUS INC/CA/</issuerName>
        <issuerTradingSymbol>CPWM</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001159120</rptOwnerCik>
            <rptOwnerName>KREVLIN GLENN J</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O GLENHILL CAPITAL MANAGEMENT LLC</rptOwnerStreet1>
            <rptOwnerStreet2>598 MADISON AVENUE, 12TH FLOOR</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK,</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10022</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001137521</rptOwnerCik>
            <rptOwnerName>GLENHILL ADVISORS LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O GLENHILL CAPITAL MANAGEMENT LLC</rptOwnerStreet1>
            <rptOwnerStreet2>598 MADISON AVENUE, 12TH FLOOR</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10022</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001137522</rptOwnerCik>
            <rptOwnerName>GLENHILL CAPITAL MANAGEMENT LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>598 MADISON AVENUE, 12TH FLOOR</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10022</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001137373</rptOwnerCik>
            <rptOwnerName>GLENHILL CAPITAL LP</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O GLENHILL CAPITAL MANAGEMENT LLC</rptOwnerStreet1>
            <rptOwnerStreet2>598 MADISON AVENUE, 12TH FLOOR</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10022</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2005-12-28</value>
            </transactionDate>
            <deemedExecutionDate>
                <value>2005-12-28</value>
            </deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>195000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>16.2356</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>3455395</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See Footnote</value>
                    <footnoteId id="F1"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2005-12-28</value>
            </transactionDate>
            <deemedExecutionDate>
                <value>2005-12-28</value>
            </deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>5000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>16.20</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>3460395</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See Footnote</value>
                    <footnoteId id="F1"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">The reporting person is the managing member of a limited liability company that has investment control and owns a minority interest in various private investment funds, including Glenhill Capital LP, Glenhill Capital Overseas Master Fund, L.P. and Glenhill Concentrated Long Master Fund LLC which own the reported securities.  The reporting person disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ GLENN J. KREVLIN</signatureName>
        <signatureDate>2005-12-30</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ GLENN J. KREVLIN, as managing member of Glenhill Advisors LLC</signatureName>
        <signatureDate>2005-12-30</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ GLENN J. KREVLIN, as managing member of Glenhill Advisors LLC, the managing member of Glenhill Capital Management LLC</signatureName>
        <signatureDate>2005-12-30</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ GLENN J. KREVLIN, as managing member of Glenhill Advisors LLC, the managing member of Glenhill Capital Management LLC, the general partner of Glenhill Capital LP</signatureName>
        <signatureDate>2005-12-30</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----