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 had a revaluation “update” for the Grand List of 2005. This involved adjusting real estate values through market analysis. A full physical revaluation is scheduled for 2010. The Assessors’ Office has been preparing for it by reviewing, photographing, and inspecting properties that have either sold, or have applications for building permits. Sales verification letters and copies of field cards are sent to the owner for review after the update has been made. The use of GPS, listing information and market analysis assist in the update.
Information on all properties including details of the structure, land value, and assessment, are available by logging on to (Direct link here:

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 2007 mill rate was set at 20.94 mills. The 2008 Grand List was signed and filed on January 31, 2009. The mill rate will be set in the spring of 2009 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