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Assessor & GIS

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Assessor & GIS Information

The Assessor's Office is responsible for the administration of the State's tax exemption programs for the elderly, blind, disabled; as well as the preparation of the Town's annual Grand List, a complete listing of all properties in town, ownership, and assessed value as of October 1st each year.

This information is then used by the Board of Finance to help determine the mill rate and in preparing tax bills. The three categories which make up the Grand List are real estate, personal property, and motor vehicles.

The mill rate for the 2022 grand list is:
35.37 for real estate and personal property
32.46 for motor vehicles

REMINDER: Residential Data Mailers will be mailed to all property owners the week of July 17, 2023.  Please complete and return to the Assessor's office even if there are no changes to your property data.

2023 Revaluation Project
New! On-line Personal Property Filing 2023 Grand List
View GIS maps  Real Estate Information 


Information, applications and forms

Tax Credits and Benefits
Farm Exemptions
Board of Assessment Appeals


Business Personal Property
Income & Expense Form
Remove Motor Vehicle Instructions
GIS Data Distribution Request Form
GIS Data Distribution Fee Schedule


Contact Us

Paige Walton, Assessor
Office: (860) 693-7842

Lee Marcella, Assessment Technician
Office: (860) 693-7842

Mailing Address: Canton Town Hall, P.O. Box 168, Collinsville, CT 06022

Location: Canton Town Hall, 4 Market Street, Collinsville, CT 06019


Assessor's office hours: 
Mon, Tues, Thurs 8:15am-4:30pm
Wed 8:15am-6:45pm
Fri 8:15am-noon

(Lunch is taken Mon-Thurs 12pm-1pm)