Today's Date:

Assessor's Office

Diana M. Couture, Assessor

Dominick Lucenti, Assessor in Training

Claire Berube, Assessor's Secretary/Clerk


815 Riverside Drive

P. O. Box 899

North Grosvenordale, CT 06255

Phone: (860) 923-2259 


Fax: (860) 923-3152

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  • Monday - 9:00 am to 4:00 pm
  • Tuesday - 9:00 am to 4:00 pm
  • Wednesday - 9:00 am to 4:00 pm
  • Thursday - 9:00 am to 6:00 pm
  • Friday - 9:00 am to 2:00 pm
  • Saturday - closed
  • Sunday - closed




To effectively discover, value and list all taxable property within the Town annually to include real estate, personal property & motor vehicle assessments.


Establish assessed values for all real property in the Town
Document & verify transfers of real property
Process veteran exemptions
Process home owner credits for the elderly & disabled
Process renter rebates for the elderly & disabled
Oversee the revaluation process
Maintain a record of sales for comparables
Maintain tax maps through GIS
Make property cards accessible to the public
Discover and value personal property
Value motor vehicles received as unpriced from DMV
Process adjustments to motor vehicles sold, totaled or moved out of state

See our Forms and Documentation section for many downloadable / printable
forms related to the above services.  To have a tax bill for a motor vehicle adjusted,
please see the Assessor's Forms and Document page to see what is needed.



All persons liable to pay taxes are hereby notified to declare all tangible personal property owned by them for three months or more as of October 1, 2017. Each local assessor will mail forms to all property owners previously on record. 
Please go to - forms and documents - if you do not receive one.
 Failure to receive a form does not preclude you from filing your declaration with the town in which you conduct your business. Otherwise CGS Sec. 87-245 provides that the assessor apply a 25% PENALTY for failure to file by November 1, 2017.
NOTE: A declaration for real property or Connecticut registered motor vehicles is not necessary. Taxable personal property includes office equipment, machinery, farming tools, machinery, tools, horses, and unregistered motor vehicles and camp trailers. Registered camp trailers are taxable in the town where they are housed.  All furniture, fixtures, machinery, and equipment used in any business must be declared.
Horses must be declared and are eligible for an exemption up to $1,000 if it is applied for on time.
FARMERS must file exemption forms on or before November 1, 2017.  The notarized statement on the application must be completed.
MANUFACTURING MACHINERY AND EQUIPMENT installed in a manufacturing facility and used in the manufacturing process may be allowed exemption, if certain guidelines are met and the necessary forms are completed by November 1, 2017. 
NEW COMMERCIAL TRUCKS with a gross vehicle rating in excess of 26,000 lbs. should be reviewed with the Assessor's office for tax exemption eligibility.  Application must be completed and filed with the assessor by November 1, 2017 on a form prescribed by the Secretary of the Office of Policy and Management. 
LAND CLASSIFICATION:  Persons seeking to apply under Farm, Forest or Open Space for the first time must file between September 1, 2017 and October 31, 2017.  Persons who have previously applied need not reapply. Person seeking to apply for Forest PA490 must do so by October 1st and must submit a qualified forester's report. 
TAX EXEMPT QUADRENNIALS ARE DUE under State Statute 12-87(7) Every 4 years tax exempt organizations must file an M-3 Tax Exempt form with the Assessor.  An M-4 form is available to file for properties acquired after October 1st of any tax year. Forms are available at


If a motor vehicle tax bill needs to be adjusted, you will need to provide one of the following proofs:

  1. Plate receipt from DMV
  2. Copy of the bill of sale
  3. Transfer of title form
  4. Junkyard receipt
  5. Out of state registration if you moved
  6. A copy of the purchase agreement if the vehicle was traded at a dealership only if new plates were issued

If the vehicle was stolen, please provide a statement from the insurance company showing it was stolen and not recovered as well as a plate receipt from DMV showing the registration has been cancelled.

Thompson Parcel Map

This map contains all Town parcels including ownership and have map themes that can be turned on and off which help identify natural and man-made features.  Aerial photography and links to Google maps also provided.  This map application can also be used to create an abutters list for land use applications.

Thompson Parcel Map (GIS Mapping)



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815 Riverside Drive
No. Grosvenordale, CT 06255

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