Office of the Assessor


Donna M. Sempey, Assessor
Andrea Woliver, Assessor Clerk
Melinda Kronfeld, Assessor Clerk
54 East Main Street
Clinton, CT 06413
Phone: (860) 669-9269
Email: (Assessor)


Monday, Tuesday, & Wednesday: 9:00am to 4:00pm
Thursday: 9:00am to 7:00pm
Friday: 9:00am to 12:00pm

Welcome to the Web Page of the Office of the Assessor

Connecticut Assessors are bound by state statute to perform various duties, which include determining property values for taxation purposes, and reviewing and approving various forms of property tax relief.

Property Values

Property Values include not only real estate, but personal property as well. Equity in real estate is maintained through a revaluation, which occurs every five years. The majority of Personal property consists of furniture, fixtures, equipment, computers, and manufacturing equipment declared by commercial and industrial entities, although other items, such as horses, and unregistered motor vehicles need be declared as well. Motor vehicles are valued through the use of the N.A.D.A. valuation guides, as mandated by state statutes.

Property Tax Relief

Property tax relief may include Elderly programs, Motor Vehicle exemptions, Farm and Forest land, Tax Exempt organizations, and Veteran’s exemptions. Please refer to the web page for more information on these programs.


The Town of Clinton has contracted with Tyler Technologies, Inc. to assist the Assessor with the State-Mandated revaluation for October 1, 2015. Unlike the previous revaluation in 2010, inspections will be limited to properties that have sold since October, 2013 to July, 2015 and those with outstanding building permits.

The purpose of a revaluation, which is done in each Connecticut town and city every five years, is to maintain equity. The market is continually changing and every property is not impacted equally. Fair market value is affected by a number of factors including property type (residential, commercial, industrial), location, individual property desirability and market supply and demand.

The goal is to estimate the current, fair market value of every property as of the assessment date, which is October 1, 2015. The assessment reflects 70% of this fair market value. Once the assessments have been determined, a notice will be mailed to you indicating the previous assessment, which was based on the fair market value from 2010, and the new assessment, updated to reflect changes that have occurred in the real estate market in the past five years. New assessments will be reflected in the July 2016 tax bills.

Grand List

The Grand List generates the greatest amount of revenue to the town through the collection of tax. Other sources of income to the town include various grants, building permit fees, copies, the filing of documents, and Park and Rec. activity enrollments, to name a few. The dollar amount of these various sources, plus the revenue generated by the total net grand list, vs. the total town budget is calculated to create the mill rate. A thorough analysis of all the town expenditures and revenues is made by the Board of Selectmen and the Board of Finance before it is scheduled for a town meeting. The taxpayers of Clinton play a large role in this process, as we vote in the budget, thus setting the mill rate. The 2013 mill rate was set at 26.27 mills. The 2014 Grand List was signed and filed on January 31, 2015. The mill rate will be set in the spring of 2015 once the budgetary process has been completed. Grand List information is available below.
Still have questions? For more information on any of the categories listed above, please feel free to contact the Assessors’ office Monday through Friday, between 9:00am and 4:00pm at (860) 669-9269.
Thank you for your interest in my department, and I welcome you to our town.
Donna M. Sempey
Town of Clinton
January 2010