Berkshire County Assessor

Find Berkshire County Massachusetts 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.


Adams Town Assessor 8 Park Street Adams MA 01220 413-743-8350


Becket Assessor 557 Main Street Becket MA 01223 413-623-5724

Cheshire Assessor 80 Church Street Cheshire MA 01225 413-743-1690

Clarksburg Town Assessor 111 River Road Clarksburg MA 01247 413-663-8255

Lanesboro Assessor 83 N Main St Hancock MA 01237 413-442-8622

Monterey Assessor 435 Main Road Monterey MA 01245 413-528-1443

New Marlborough Assessor 1259 Norfolk Road New Marlborough MA 01259 413-229-8926

North Adams Assessor 10 Main Street North Adams MA 01247 413-662-3012

Rickmond Town Assessor 1529 State Rd Richmond MA 01254 413-698-2525

Sandisfield Assessor 66 Sandisfield Road Sandisfield MA 01255 413-258-4701

Stockbridge Assessor 6 Main Street Dalton MA 01226 413-298-3509

West Stockbridge Assessor 9 Main Street West Stockbridge MA 01266 413-232-0303

Williamstown Assessor 31 North Street Williamstown MA 01267 413-458-9343

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.