<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2017-02-27</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001579471</issuerCik>
        <issuerName>Colony Starwood Homes</issuerName>
        <issuerTradingSymbol>SFR</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001076343</rptOwnerCik>
            <rptOwnerName>BARRACK THOMAS JR</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>515 SOUTH FLOWER</rptOwnerStreet1>
            <rptOwnerStreet2>44TH FLOOR</rptOwnerStreet2>
            <rptOwnerCity>LOS ANGELES</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>90071</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Shares, par value $0.01 per share</value>
            </securityTitle>
            <transactionDate>
                <value>2017-02-27</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>J</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>159220</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.00</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>7819448</value>
                    <footnoteId id="F1"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By controlled entities</value>
                    <footnoteId id="F2"/>
                    <footnoteId id="F3"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">On February 27, 2017, Colony AH Member, LLC distributed 149,077 Common Shares, par value $0.01 per share, of the Issuer (the &quot;Shares&quot;) to certain of its indirect members in order to satisfy certain redemption requests made by such members and also to satisfy certain contractual obligations of a member entered into prior to the Reporting Person becoming a Section 16 reporting person. On February 27, 2017, CCCAH Management Partners, LLC distributed 10,143 Shares to certain of its members in order to satisfy certain redemption requests made by such members.</footnote>
        <footnote id="F2">Mr. Barrack is the direct or indirect control person of the general partner or the managing member, as the case may be, of each of Colony Distressed Credit Fund II, L.P., ColCo Strategic Partners, L.P., Colony Capital CAH, L.P., Colony AH Member, LLC, and CCCAH Management Partners, LLC. Following such transfers set forth above: (i) Colony Distressed Credit Fund II, L.P. beneficially owned 2,951,315 Shares, (ii) ColCo Strategic Partners, L.P. beneficially owned 2,673,215 Shares, (iii) Colony Capital CAH, L.P. beneficially owned 53,464 Shares, (iv) Colony AH Member, LLC beneficially owned 2,051,291 Shares, and (v) CCCAH Management Partners, LLC beneficially owned 90,163 Shares.</footnote>
        <footnote id="F3">The Reporting Person disclaims beneficial ownership of the Shares reported herein except to the extent of his pecuniary interest in such securities.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Thomas J. Barrack, Jr.</signatureName>
        <signatureDate>2017-02-27</signatureDate>
    </ownerSignature>
</ownershipDocument>
