Bristol County Assessor Office

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


Berkley Assessor 1 North Main Street Berkley MA 02779 508-822-7955


Dartmouth Assessor 400 Slocum Road Dartmouth MA 02747 508-999-0709

Mansfield Town Assessor 6 Park Row Mansfield MA 02048 508-261-7350

Norton Assessor 70 East Main Street Norton MA 02766 508-285-0270

Raynham Town Assessor 558 South Main Street Raynham MA 02767 508-828-4527

Rehoboth Assessor 148 Peck Street Rehoboth MA 02769 508-252-3352

Seekonk Town Assessor 100 Peck Street Seekonk MA 02771 508-336-2980

Taunton Assessor 15 Summer Street Taunton MA 02780 508-821-1011

About Assessor Offices

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.