Assessor

The primary duty of the Assessor's Office is to discover, list and value all real estate, motor vehicles and personal property located within the Town of Thomaston. The product of that activity is called the 'Grand List'. The Assessment of property to compile the grand list is governed by state law. Property is assessed in each town as of the October 1st assessment date. All property is assessed at 70% of its value. The total of the assessments of all taxable property makes up the Gross Grand List.

The Assessor's Office grants a variety of exemptions as provided by state law and local ordinances. The total, after the exemptions are deducted, makes up the Net Taxable Grand List. It is this figure that is the base for the Town’s property tax revenue. The Net Taxable Grand List may be changed further by the actions of the Board of Assessment Appeals. When the Board of Assessment Appeals has completed its duties, the remaining list is the final Net Taxable Grand List.

Each municipality in Connecticut is mandated by the State to revaluate property every five years. The Town of Thomaston underwent a revaluation for October 1, 2021. The next revaluation will be for October 1, 2026 Grand List. PURSUANT TO PUBLIC ACT22-74 THE NEXT REVALUATION IS NOW SCHEDULED FOR OCTOBER 1, 2025

THE MILL RATE FOR 2022 GRAND LIST IS 33.63 FOR REAL ESTATE AND PERSONAL PROPERTY AND 32.46 FOR MOTOR VEHICLE.

• Assessor's Real Property Database  
• Thomaston GIS Maps (GIS MAPPING IS MEANT TO BE A GUIDE ONLY AND DOES NOT
• TAKE THE PLACE OF AN A-2 SURVEY) OWNERS UPDATED THROUGH MAY, 2023
  

• Index for New Tax maps
  Choose a Map map1 map2 map3 map4 map5 map6 map7 map8 map9 map10 map11 map12 map13 map14 map15 map16 map17 map18 map19 map20 map21 map22 map23 map24 map25 map26 map27 map28 map29 map30 map31 map32 map33 map35 map36 map37 map38 map39 map40 map 41 map43 map44 map45 map46 map47 map48 map49 map51 map52 map53 map54 map55 map56 map58 map59 map60 map61 map62 map63 map64 map65 map66 map67 map68 map69 map70 map71 map72 map74 map76 map77 map78 Index Map

  Listing files in 'Maps'

  *Times are adjusted to the local time of the organization (GMT -5)

• Enterprise Zone Property List
• Real Estate
  
• Motor Vehicles
• Personal Property DUE ON OR BEFORE NOVEMBER 1ST.
• Exemptions
  
• Board of Assessment Appeals 
• Assessment/Exemption Forms
• Income and Expense Forms  
  
• I & E Schedule A & B
  
• 2023 Personal Property Declarations 
  
• PA 490