Westchester County GIS Property Maps

Search for Westchester County NY GIS maps and property maps. Property maps show property and parcel boundaries, municipal boundaries, and zoning boundaries, and GIS maps show floodplains, air traffic patterns, and soil composition.


Westchester County Assessors determine the value of properties and parcels in order to assess property taxes in Westchester County, NY. The Assessor's Office maintains current data on every parcel in the district, which includes Westchester County GIS maps, tax maps, and property maps. These maps show property lines, structures, addresses, and the value of properties in the Assessor's jurisdiction. Tax Assessor's Offices provide online access to property maps.

Bedford Assessor Bedford Hills NY 321 Bedford Road 10507 914-666-5149

Cortlandt Assessor Cortlandt NY 1 Heady Street 10567 914-734-1040

Harrison Town Assessor Harrison NY 1 Heineman Place 10528 914-670-3040

Lewisboro Town Assessors South Salem NY 99 Elmwood Road 10590 914-763-5592

Mount Vernon Assessor Mount Vernon NY 1 Roosevelt Square North 10550 914-665-2325

North Salem Town Assessor North Salem NY 270 Titicus Road 10560 914-669-5214

Ossining Assessor Ossining NY 16 Croton Avenue 10562 914-762-8274


Westchester County Building Departments develop and enforce building codes to ensure the construction of safe buildings in Westchester County, NY. The Building Department maintains records on design plans for construction and renovation projects, which can include Westchester County GIS maps and zoning maps. These maps show property lines, current structures on the parcel, and modifications to any structures, including new buildings. Many Building Depts provide online databases to access GIS databases, maps and related property information.

Ardsley Building Department Ardsley NY 507 Ashford Avenue 10502 914-693-6961

Armonk Building Department Armonk NY 17 Bedford Road 10504 914-273-8625

Bedford Planning Department Bedford Hills NY 425 Cherry Street 10507 914-666-4434

Bedford Zoning Bedford Hills NY 425 Cherry Street 10507 914-666-4585

Bronxville Building Department Bronxville NY 200 Pondfield Road 10708 914-337-7338

Croton On Hudson Permits Croton-on-Hudson NY 1 Van Wyck St 10520 914-271-4781

Eastchester Building Department Eastchester NY 40 Mill Road 10709 914-771-3317

Greenburgh Building Department White Plains NY 177 Hillside Avenue 10607 914-993-1575

Harrison Zoning Harrison NY 1 Heineman Place 10528 914-670-3075

Hastings-On-Hudson Village Zoning Hastings-on-Hudson NY 7 Maple Avenue 10706 914-478-3402

Lewisboro Building Department South Salem NY 99 Elmwood Road 10590 914-763-3060

Lewisboro Planning Department South Salem NY 99 Elmwood Road 10590 914-763-5592

Lewisboro Town Zoning South Salem NY 99 Elmwood Road 10590 914-763-3822

Mamaroneck Building Department Mamaroneck NY 169 Mount Pleasant Avenue 10543 914-777-7731

Mt Vernon Zoning Mount Vernon NY 1 Roosevelt Square North 10550 914-665-2393

New Rochelle City Permits New Rochelle NY 515 North Avenue 10801 914-654-2140

New Rochelle Zoning New Rochelle NY 515 North Avenue 10801 914-654-2033

North Castle Building Department Armonk NY 17 Bedford Road 10504 914-273-3714

North Salem Planning Department North Salem NY 270 Titicus Road 10560 914-669-5661

North Salem Zoning North Salem NY 270 Titicus Road 10560 914-669-5952


Westchester County Clerks file documents and preserve municipal records in order to maintain an archive in Westchester County, NY. The Clerk's Office contains a number of documents on property, including GIS maps and property maps that show property lines, registered lands, and, in some cases, property tax assessments. Westchester County GIS maps may also include information on soil composition, floodplains, air traffic, and more. Many County Clerk Offices provide online databases to access GIS and property maps.

Bedford Town Clerk Bedford Hills NY 321 Bedford Road 10507 914-666-4534

Briarcliff Manor Village Clerk Briarcliff Manor NY 1111 Pleasantville Road 10510 914-941-4802

Cortland Town Clerk Cortlandt NY 1 Heady Street 10567 914-734-1020

Dobbs Ferry Village Clerk Dobbs Ferry NY 112 Main Street 10522 914-693-6161

Eastchester Town Clerk Eastchester NY 40 Mill Road 10709 914-771-3351

Greenburgh Town Clerk White Plains NY 320 Tarrytown Road 10607 914-993-1500

Harrison Clerk Harrison NY 1 Heineman Place 10528 914-670-3010

Hastings-On-Hudson Village Clerk Hastings-on-Hudson NY 7 Maple Avenue 10706 914-478-3400

Larchmont Village Clerk Larchmont NY 120 Larchmont Avenue 10538 914-834-6230

Lewisboro Town Clerk South Salem NY 11 Main St 10590 914-763-3511

Mt Pleasant Town Clerk Valhalla NY 1 Town Hall Plaza 10595 914-769-1766

Mt Vernon City Clerk Mount Vernon NY 1 Roosevelt Square North 10550 914-665-2348


Westchester County Town Halls or City Halls are the chief administrative offices that run a town or city in Westchester County, NY. The Town or City Hall maintains property records related to the locality, including Westchester County GIS maps. These maps show Westchester County property lines, municipal boundaries, zoning boundaries, and property value assessments. GIS maps of Westchester County may also include information on soil composition, floodplains, air traffic, and more. Many Town and City Halls provide online databases to access GIS and property maps.

Cortlandt Manor Town Hall Cortlandt NY 1 Heady Street 10567 914-734-1046

Greenburgh Town Hall White Plains NY 177 Hillside Avenue 10607 914-993-1546

Harrison Town Hall Harrison NY 1 Heineman Place 10528 914-670-3005

Irvington Town Hall Irvington NY 85 Main Street 10533 914-591-6602

Mt Vernon City Hall Mount Vernon NY 1 Roosevelt Square North 10550 914-665-2300

New Castle Town Hall Chappaqua NY 200 South Greeley Avenue 10514 914-238-4771

New Rochelle City Hall New Rochelle NY 515 North Avenue 10801 914-654-2000

North Castle Town Hall Armonk NY 15 Bedford Road 10504 914-273-3321

North Salem Town Hall North Salem NY 266 Titicus Road 10560 914-669-5577


Westchester County Treasurers and Tax Collectors are responsible for the collection of property tax revenue in Westchester County, NY. The Office of the Treasurer and Tax Collector maintains current data on every parcel in the district, which includes property maps complete with Westchester County GIS data. These maps show property lines, structures, addresses, and the value of properties in the Treasurer and Tax Collector's Westchester County assessment roll. Many Treasurers and Tax Collectors provide online databases to access GIS and property maps, as well as related property information.

Larchmont Treasurer Larchmont NY 5 Winthrop Avenue 10538 914-834-7375

Mamaroneck Treasurer Mamaroneck NY 123 Mamaroneck Avenue 10543 914-777-7722