Westchester County Assessor

Find Westchester County New York assessor, assessment, auditor's, and appraiser's office, revenue commissions, GIS, and tax equalization departments. Assessors provide information on property and land tax assessment, property listings, values, valuations, property search, and records.


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


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

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

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

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

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

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

Peekskill Assessor 840 Main Street Peekskill NY 10566 914-734-4190

Pelham Town Assessor 34 Fifth Avenue Pelham NY 10803 914-738-1642

Pleasantville Assessor 80 Wheeler Avenue Pleasantville NY 10570 914-769-1500

Rye Assessor 1051 Boston Post Road Rye NY 10580 914-967-7565

Rye Brook Assessor 10 Pearl Street Port Chester NY 10573 914-939-3566

Scarsdale Village Assessor 1001 Post Road Scarsdale NY 10583 914-722-1110

Somers Assessor 337 U.s. 202 Heritage Hills NY 10589 914-277-3504

Yonkers Assessor 87 Nepperhan Avenue Yonkers NY 10701 914-377-6200

What if I disagree with an assessment?

Most jurisdictions have an appeal process for contesting an assessment. While the specific rules vary from one locality to the next, the process typically involves a hearing before an assessment appeal board. Taxpayers who have concerns about their assessment should visit their local Assessor's Office or its website to learn about the appeal process and what information is required in order to appeal a property tax assessment.

How does my assessment affect the taxes I owe?

The formula used to calculate property taxes varies by location. Your assessment is one part of your property tax calculation. Your property tax payment is calculated by multiplying your property's assessed value, or in some cases half of the assessed value, by the tax rate for your location.

What is the difference between assessed value and market value?

Market value is the likely selling price of a property based on current market conditions. In some jurisdictions, the Assessor calculates an assessed value by applying a factor, for example 70%, to the market value. The assessed value is then used to calculate the taxes for that property.