<SEC-DOCUMENT>0001209191-21-063767.txt : 20211109
<SEC-HEADER>0001209191-21-063767.hdr.sgml : 20211109
<ACCEPTANCE-DATETIME>20211109202613
ACCESSION NUMBER:		0001209191-21-063767
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20211105
FILED AS OF DATE:		20211109
DATE AS OF CHANGE:		20211109

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Andersen Heidi
		CENTRAL INDEX KEY:			0001886424

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-40246
		FILM NUMBER:		211393957

	MAIL ADDRESS:	
		STREET 1:		C/O NEXTDOOR HOLDINGS, INC.
		STREET 2:		420 TAYLOR STREET
		CITY:			SAN FRANCISCO
		STATE:			CA
		ZIP:			94012

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Nextdoor Holdings, Inc.
		CENTRAL INDEX KEY:			0001846069
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-COMPUTER PROGRAMMING, DATA PROCESSING, ETC. [7370]
		IRS NUMBER:				861776836
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		420 TAYLOR STREET
		CITY:			SAN FRANCISCO
		STATE:			CA
		ZIP:			94012
		BUSINESS PHONE:		415-344-0333

	MAIL ADDRESS:	
		STREET 1:		420 TAYLOR STREET
		CITY:			SAN FRANCISCO
		STATE:			CA
		ZIP:			94012

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Khosla Ventures Acquisition Co. II
		DATE OF NAME CHANGE:	20210212
</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>2021-11-05</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001846069</issuerCik>
        <issuerName>Nextdoor Holdings, Inc.</issuerName>
        <issuerTradingSymbol>KIND</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001886424</rptOwnerCik>
            <rptOwnerName>Andersen Heidi</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O NEXTDOOR HOLDINGS, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>420 TAYLOR STREET</rptOwnerStreet2>
            <rptOwnerCity>SAN FRANCISCO</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>94102</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Head of Revenue</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Stock Option (Right to Buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>2.37</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2021-11-05</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>1478306</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F2"/>
            </exerciseDate>
            <expirationDate>
                <value>2030-07-29</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Class B Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>1478306</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1478306</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Represents shares of Class B Common Stock of the Company received pursuant to a business combination (the &quot;Business Combination&quot;) which was effectuated in accordance with the terms of an Agreement and Plan of Merger dated as of July 6, 2021, entered into by and among:  (i) Khosla Ventures Acquisition Co. II (the &quot;Issuer&quot;), a Delaware corporation; (ii) Lorelei Merger Sub Inc., a Delaware corporation and a wholly-owned subsidiary of the Issuer; and (iii) Nextdoor, Inc. (&quot;Original Nextdoor&quot;), a Delaware corporation.  As a result of the Business Combination, Original Nextdoor became a wholly owned subsidiary of the Issuer and the Issuer was renamed &quot;Nextdoor Holdings, Inc.&quot;  Upon completion of the Business Combination, the reporting person's shares of the stock of Original Nextdoor were exchanged for shares of Class B Common Stock of the Issuer based on an exchange ratio of approximately 3.1057 to 1.</footnote>
        <footnote id="F2">461,970 of the total shares underlying the option vest on the grant date.  The remainder will vest in equal installments on the thirteenth (13th) of each month thereafter through July 13, 2024, subject to the reporting person's continued service to the Issuer on each vesting date.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Sophia Contreras Schwartz, as Attorney-in-Fact for Reporting Person</signatureName>
        <signatureDate>2021-11-09</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
