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

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2015-10-01</periodOfReport>

    <notSubjectToSection16>1</notSubjectToSection16>

    <issuer>
        <issuerCik>0000878560</issuerCik>
        <issuerName>CalAtlantic Group, Inc.</issuerName>
        <issuerTradingSymbol>SPF</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0000878560</rptOwnerCik>
            <rptOwnerName>CalAtlantic Group, Inc.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>3011 TOWNSGATE ROAD</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 200</rptOwnerStreet2>
            <rptOwnerCity>WESTLAKE VILLAGE</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>91361-3027</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, par value $1.00 per share</value>
            </securityTitle>
            <transactionDate>
                <value>2015-10-01</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>D</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>126400000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F1"/>
                    <footnoteId id="F2"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>0</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Successor by Merger</value>
                    <footnoteId id="F3"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Disposed of pursuant to the termination of the Voting Agreement, dated as of June 14, 2015, between The Ryland Group, Inc., a Maryland corporation (&quot;Ryland&quot;), and MP CA Homes LLC, a Delaware limited liability company (the &quot;Voting Agreement&quot;).  Concurrently with the execution of the Voting Agreement, Ryland and the Issuer entered into the Amended and Restated Agreement and Plan of Merger, pursuant to which Ryland will be merged with and into the Issuer (the &quot;Merger Agreement&quot;). Pursuant to the Merger Agreement, Ryland merged with and into Standard Pacific Corp., a Delaware corporation, with Standard Pacific Corp. continuing as the surviving corporation under the name CalAtlantic Group, Inc (the &quot;Merger&quot;).</footnote>
        <footnote id="F2">(Continued from Footnote 1) At the effective time of the Merger, the Voting Agreement terminated in accordance with its terms.  As a result of the termination of the Voting Agreement, Ryland ceased to be a beneficial owner of more than ten percent of the shares outstanding of common stock, par value $0.01 per share of Standard Pacific Corp.</footnote>
        <footnote id="F3">By CalAtlantic Group, Inc. (as successor by merger to The Ryland Group, Inc.).</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>CALATLANTIC GROUP, INC., (as successor by merger to The Ryland Group, Inc.), /s/ John P. Babel, Name: John P. Babel, Title: Executive Vice President, General Counsel and Secretary</signatureName>
        <signatureDate>2015-10-01</signatureDate>
    </ownerSignature>
</ownershipDocument>
