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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 2020 grand list is: 33.22


View GIS maps  Real Estate Information  GIS Data Distribution Request Form  GIS Data Distribution Fee Schedule


Information, applications and forms

Tax Credits and Benefits
Farm Exemptions
Business Personal Property
Income & Expense Form
Remove Motor Vehicle Instructions


Contact Us

VACANT, Assessor
Office: (860) 693-7842

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


Location: Canton Town Hall, P.O. Box 168, 4 Market Street, Collinsville, CT 06022


Assessor's Hall office hours: None at this time