<SUBMISSION>
<ACCESSION-NUMBER>0000950138-05-000728
<TYPE>4
<PUBLIC-DOCUMENT-COUNT>1
<PERIOD>20050727
<FILING-DATE>20050729
<DATE-OF-FILING-DATE-CHANGE>20050729
<ISSUER>
<COMPANY-DATA>
<CONFORMED-NAME>BUILD A BEAR WORKSHOP INC
<CIK>0001113809
<ASSIGNED-SIC>5945
<IRS-NUMBER>431883836
<STATE-OF-INCORPORATION>DE
<FISCAL-YEAR-END>0101
</COMPANY-DATA>
<BUSINESS-ADDRESS>
<STREET1>1954 INNERBELT BUSINESS CENTRE DRIVE
<CITY>ST LOUIS
<STATE>MO
<ZIP>63114
<PHONE>314-423-8000
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>1954 INNERBELT BUSINESS CENTRE DRIVE
<CITY>ST LOUIS
<STATE>MO
<ZIP>63114
</MAIL-ADDRESS>
</ISSUER>
<REPORTING-OWNER>
<OWNER-DATA>
<CONFORMED-NAME>ERDOS BARRY
<CIK>0001083202
<ASSIGNED-SIC>5621
<STATE-OF-INCORPORATION>DE
<FISCAL-YEAR-END>0201
</OWNER-DATA>
<FILING-VALUES>
<FORM-TYPE>4
<ACT>34
<FILE-NUMBER>001-32320
<FILM-NUMBER>05983980
</FILING-VALUES>
<BUSINESS-ADDRESS>
<STREET1>142 WEST 57TH ST
<CITY>NEW YORK
<STATE>NY
<ZIP>10019
<PHONE>2125413300
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>C/O ANNTAYLOR STORES CORP
<STREET2>142 WEST 57TH STREET
<CITY>NEW YORK
<STATE>NY
<ZIP>10019
</MAIL-ADDRESS>
</REPORTING-OWNER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>form4_072905ex.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2005-07-27</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001113809</issuerCik>
        <issuerName>BUILD A BEAR WORKSHOP INC</issuerName>
        <issuerTradingSymbol>BBW</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001083202</rptOwnerCik>
            <rptOwnerName>ERDOS BARRY</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O BUILD-A-BEAR WORKSHOP, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>1954 INNERBELT BUSINESS CENTRE DRIVE</rptOwnerStreet2>
            <rptOwnerCity>ST. LOUIS</rptOwnerCity>
            <rptOwnerState>MO</rptOwnerState>
            <rptOwnerZipCode>63114</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Pres. &amp; Chief Operating Bear</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Employee Stock Option (right to buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>23.60</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2005-07-27</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>30000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F2"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <value>2006-07-26</value>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <value>2015-07-26</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>30000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>30000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">The options vest over four years in equal annual installments beginning one year after the date of grant.</footnote>
        <footnote id="F2">Price is not applicable to acquisitions resulting from grants of stock options.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Barry Erdos</signatureName>
        <signatureDate>2005-07-29</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SUBMISSION>
