Welcome


Welcome to the Haddam, CT Online Assessment Database.



The Town of Haddam, CT completed the state mandated revaluation project for the 10/1/2015 Grand List.  This database contains assessments for each real property parcel in the Town of Haddam.  The Assessment represents 70% of the Market Value as of the last revaluation, which was effective for the October 1, 2015 Grand List.


Please feel free to contact the Assessor's Office if you find a discrepancy in the data for your individual property, or have any questions.  Taxes are calculated by multiplying the current mill rate by the assessment.  Mill rates are set in the Spring every year by the Town.


Assessments remain the same for each of the five years following a revaluation and a new Grand List is filed every January after the values have been finalized.  The data contained on this website is current and the values reflected for the current year may be different than the prior year's value if  any changes have been made to the property record card.  These changes can be caused by, but are not limited to,  addition of new construction, property renovation, building permits, property corrections and/ or land changes that have been made to the property in our office records. 


The next scheduled Revaluation is set for October 1, 2020.


Please feel free to contact the Assessor's Office if you have any questions. 



Jennifer L. Gauthier, Assessor                Tammy Anderson, Assistant Assessor

(860) 345-8531, x 213                                 (860) 345-8531, x226

assessor@haddam.org                             assessasst@haddam.org