New London County Assessor

Find New London County Connecticut 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.


Colchester Assessor 127 Norwich Avenue Colchester CT 06415 860-537-7205


Franklin Assessor 7 Meeting House Hill Road Franklin CT 06254 860-642-6475

Groton Assessor 45 Fort Hill Road Groton CT 06340 860-441-6660

Lebanon Assessor 579 Exeter Road Lebanon CT 06249 860-642-6141

Lyme Assessor 480 Hamburg Road Old Lyme CT 06371 860-434-8092

New London Assessor 181 State Street New London CT 06320 860-447-5216

New London County Assessor's Office 15 Masonic Street New London CT 06320 860-437-6317

Norwich Assessor 100 Broadway Norwich CT 06360 860-823-3723

Waterford Assessor 15 Rope Ferry Road Waterford CT 06385 860-444-5820

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.