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

    <schemaVersion>X0303</schemaVersion>

    <documentType>5</documentType>

    <periodOfReport>2009-10-31</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <form3HoldingsReported>0</form3HoldingsReported>

    <form4TransactionsReported>0</form4TransactionsReported>

    <issuer>
        <issuerCik>0001029800</issuerCik>
        <issuerName>URSTADT BIDDLE PROPERTIES INC</issuerName>
        <issuerTradingSymbol>UBA</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001439436</rptOwnerCik>
            <rptOwnerName>Bannon Kevin j</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>62 CROTON AVENUE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>MOUNT KISCO</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10549</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Class A Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2008-10-28</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>5</transactionFormType>
                <transactionCode>G</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>500</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>20600</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See Footnote</value>
                    <footnoteId id="F3"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">On October 28, 2008 the Katherine E. Bannon 2001 Revocable Trust dated 10/22/01 for the benefit of Katherine E. Bannon, Mr. Bannon's daughter (the &quot;KEB Trust&quot;), of which Mr. Bannon is co-trustee, distributed 500 shares of Class A Common Stock to the beneficiary of the trust.</footnote>
        <footnote id="F2">This figure includes 900 restricted shares of Class A Common Stock issued pursuant to the Issuer's Amended and Restated Restricted Stock Award Plan.</footnote>
        <footnote id="F3">The Reporting Person is the direct beneficial owner of 15,900 shares of Class A Common Stock.  Additionally, he is the indirect beneficial owner of 4,700 shares of Class A Common Stock, of which 1,700 shares are held in the name of the Kevin J. Bannon IRA for the benefit of Kevin J. Bannon, 1,000 shares are owned by the KEB Trust, 1,000 shares are owned by the Michael E. Bannon 2000 Revocable Trust dated 8/17/00, for the benefit of Michael E. Bannon, Mr. Bannon's son, and 1,000 shares are owned by the Trust under the will of Nathan B. Epstein for the benefit of Susan E. Bannon, Mr. Bannon's wife, et al.  Mr. Bannon is co-trustee of each of the above-mentioned trusts.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Kevin J. Bannon by Thomas D. Myers as Attorney-in-Fact</signatureName>
        <signatureDate>2009-12-15</signatureDate>
    </ownerSignature>
</ownershipDocument>
