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            <link:roleType roleURI="http://www.alx-inc.com/role/RegoParkIIApartmentTower" id="alx_ELRID_RegoParkIIApartmentTower">
                <link:definition>010450 - Disclosure - Rego Park II Apartment Tower</link:definition>
                <link:usedOn>link:presentationLink</link:usedOn>
                <link:usedOn>link:calculationLink</link:usedOn>
                <link:usedOn>link:definitionLink</link:usedOn>
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            <link:roleType roleURI="http://www.alx-inc.com/role/RecentlyIssuedAccountingLiterature" id="alx_ELRID_RecentlyIssuedAccountingLiterature">
                <link:definition>010200 - Disclosure - Recently Issued Accounting Literature</link:definition>
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                <link:usedOn>link:calculationLink</link:usedOn>
                <link:usedOn>link:definitionLink</link:usedOn>
            </link:roleType>
            <link:roleType roleURI="http://www.alx-inc.com/role/SignificantTenantsDetails" id="alx_ELRID_SignificantTenantsDetails">
                <link:definition>040550 - Disclosure - Significant Tenants (Details)</link:definition>
                <link:usedOn>link:presentationLink</link:usedOn>
                <link:usedOn>link:calculationLink</link:usedOn>
                <link:usedOn>link:definitionLink</link:usedOn>
            </link:roleType>
            <link:roleType roleURI="http://www.alx-inc.com/role/BasisOfPresentationDetails" id="alx_ELRID_BasisOfPresentationDetails">
                <link:definition>040150 - Disclosure - Basis of Presentation (Details)</link:definition>
                <link:usedOn>link:presentationLink</link:usedOn>
                <link:usedOn>link:calculationLink</link:usedOn>
                <link:usedOn>link:definitionLink</link:usedOn>
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            <link:roleType roleURI="http://www.alx-inc.com/role/DisclosureSignificantAccountingPolicyDetails1" id="alx_ELRID_SignificantAccountingPolicyDetails1">
                <link:definition>040250 - Disclosure - Significant Accounting Policy (Details 1)</link:definition>
                <link:usedOn>link:presentationLink</link:usedOn>
                <link:usedOn>link:calculationLink</link:usedOn>
                <link:usedOn>link:definitionLink</link:usedOn>
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    <element name="FederalGovernmentResponsibility" id="alx_FederalGovernmentResponsibility" type="num:percentItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="instant" />
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</schema>
