<SEC-DOCUMENT>0001209191-22-047357.txt : 20220824
<SEC-HEADER>0001209191-22-047357.hdr.sgml : 20220824
<ACCEPTANCE-DATETIME>20220824165422
ACCESSION NUMBER:		0001209191-22-047357
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20220822
FILED AS OF DATE:		20220824
DATE AS OF CHANGE:		20220824

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Sumner Crystal
		CENTRAL INDEX KEY:			0001870987

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-40599
		FILM NUMBER:		221192118

	MAIL ADDRESS:	
		STREET 1:		415 KEARNY STREET
		CITY:			SAN FRANCISCO
		STATE:			CA
		ZIP:			94108

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Blend Labs, Inc.
		CENTRAL INDEX KEY:			0001855747
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-COMPUTER PROGRAMMING, DATA PROCESSING, ETC. [7370]
		IRS NUMBER:				455211045
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		415 KEARNY ST.
		CITY:			SAN FRANCISCO
		STATE:			CA
		ZIP:			94108
		BUSINESS PHONE:		(650) 550-4810

	MAIL ADDRESS:	
		STREET 1:		415 KEARNY ST.
		CITY:			SAN FRANCISCO
		STATE:			CA
		ZIP:			94108
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc4.xml
<DESCRIPTION>FORM 4 SUBMISSION
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2022-08-22</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001855747</issuerCik>
        <issuerName>Blend Labs, Inc.</issuerName>
        <issuerTradingSymbol>BLND</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001870987</rptOwnerCik>
            <rptOwnerName>Sumner Crystal</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>415 KEARNY ST.</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>SAN FRANCISCO</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>94108</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Head of Legal, Compliance,Risk</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Class A Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2022-08-22</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>20266</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>2.9085</value>
                    <footnoteId id="F2"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>634483</value>
                    <footnoteId id="F3"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Shares sold to cover tax obligations in connection with the vesting of Restricted Stock Units (&quot;RSUs&quot;).</footnote>
        <footnote id="F2">This sale price represents the weighted average sale price of the shares sold ranging from $2.795 to $2.985 per share. Upon request by the Commission staff, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price within the range set forth in this Form 4.</footnote>
        <footnote id="F3">Certain of these shares are represented by previously reported RSUs.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Crystal Sumner</signatureName>
        <signatureDate>2022-08-24</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
