David Dietsch, CCMA II

Catherine Norton, Assessor Clerk

Hours: Tuesday and Thursday from 12:00 to 1:00, Wednesdays, and by appointment

Address:  562 Colebrook Road, Colebrook, CT 06021

Mailing Address:  P.O. Box 5, Colebrook, CT 06021

Phone: (860) 379-3359  ext. 206         


The Assessor’s Office is responsible for discovering, valuing, and updating all taxable property including real estate, motor vehicles and personal property in the Town of Colebrook. After the Grand List of taxable property is finalized in January, the budget process begins, finishing with the establishing of a mill rate. The mill rate for the 2022 Grand List is 33.2 for real estate and personal property. The mill rate for motor vehicles, which is currently capped by Connecticut General Statute, is 32.46.

No longer own your motor vehicle?  Please click here to find out what is required to obtain a tax credit (if applicable).

*You can now change your motor vehicle address online through DMV*

This service is not available for companies or leased vehicles. Please follow this link to the DMV change of address form:

The Assessor’s Office also administers many tax relief and exemption programs.  Please click here for Tax Relief Programs offered by the Town of Colebrook and the State of Connecticut.  If you would like more information on these programs, please feel free to call 860-379-3359 x206 or email

Tax Relief Programs