Assessor's Office


The Assessor’s Office is responsible for distributing the tax burden among all taxpayers within the Town of Haddam pursuant to Section 12 of the Connecticut General Statutes.

Hours:  Monday, Tuesday and Wednesday from 8:30 a.m. to 4:00 p.m.

              Thursday from 8:30 a.m. to 6:00 p.m.

               Friday from 8:30 a.m. to 12:00 noon


Our office is responsible for the annual preparation of the Grand List. The Grand List is a compilation of all taxable property within the town limits – including motor vehicles, personal property and real estate. 

Real Estate

Our records are updated from deeds and documents recorded with the Town Clerk, updates from the Building and Land Use Departments and other state, regional and local entities. We update the Tax Maps annually, in conjunction with the completion of the Grand List. 

Properties that have building permits that have not yet been closed out by the Assessor’s Office are visited annually with the property record being updated with new information. Additionally, any properties that are changed or updated without permits are also visited and updates made to the assessment records. Haddam had 4,292 real estate accounts on the 2018 Grand List.

Motor Vehicles

The Assessor’s Office receives and updates motor vehicle records from the Connecticut Department of Motor Vehicles. We are supplied lists from the DMV twice per year and are responsible for valuing and maintaining accurate listings of vehicles within Haddam – including adding and removing motor vehicles from out-of-state or other jurisdictions, deleting motor vehicles that were sold or traded-in and adding any new vehicles that were registered after October 1st. The Town of Haddam reports 10,185 vehicles on our 2018 Grand List. 

Personal Property

The Assessor’s Office maintains personal property records for all businesses and personal property accounts in town and this includes the annual processing of Personal Property Declarations. We are responsible for maintaining accurate records for businesses moving into, and out of, Haddam and recording the accurate personal property listing of these businesses.  This also includes taxpayers who have unregistered motor vehicles, or vehicles registered out-of-state whose principal domicile is here in Haddam. The 2018 Grand List  contains 763 Personal Property accounts.  Personal property accounts are added as they are discovered. 

Exemptions and Special Programs

In addition to maintaining the Grand List, the Assessor’s Office maintains records for a multitude of state and local exemption programs – from initial eligibility and application to the annual maintenance of these records. Some of these include exemptions for Blind, Veteran’s, Active Military, Elderly, Manufacturing, Solar, and Farm and Forest, among others. In conjunction with maintaining these programs in Haddam, we are responsible to report on these programs to various state and local authorities throughout the year. 

If you have questions, or would like any additional information, please do not hesitate to contact us. 


Staff Contacts

Name Title Phone
Tammy Anderson Assessor, CCMA I (860) 345-8531 Ext: 226
Deborah Copp Assistant Assessor CCMA I (860) 345-8531 Ext 213