The Assessor's PRE-REVAL records can be found online at:
The Assessor's maps can be found online at:

Property Records (Field Cards), 2020 Grand List*:
*IMPORTANT: the records accessed by the above link are as of the October 1, 2020 Grand List with values based on the 2016 Revaluation. They are NOT a reflection of data collected or values changed as a result of the 2021 Revaluation, which is not yet finalized. The Revaluation property records and proposed new assessments can only be viewed through the following link:

GIS Maps:
DISCLAIMER: The Assessor's Maps are not survey maps, nor are they plots plans. They are not intended for use in any formal capacity. The Assessor's Map is a generalization showing the approximate dimension and location of a property in relationship to those other properties that border it.
Town hall is open to masked visitors, and the Assessor's office is operating during normal business hours. Staff may be working in the field or remotely, so it is important for callers to leave messages. Walk-ins are welcome, but appointments are encouraged due to the nature of our work.

We are accessible best by email ), and by phone 860-663-1765 Ext. 209. 

2021 Revaluation

Update 12/02/2021

The state-mandated Revaluation is nearing completion. On December 2, 2021, eQuality Valuation Services mailed a Notice of Assessment Change to every owner of real property in the Town of Killingworth. Please read said notice carefully (see sample here). Assessments reflect 70% of the fair market value as of October 1, 2021. The new mill rate will not be established until the budgetary process has been completed in May or June of 2022, so it is not possible to estimate the July 2022 tax bill at this time.

Property record cards accessed through the town website will continue to reflect the previous data and values (2020 Grand List) until the Revaluation is formally implemented at the end of January 2022. The proposed new values can only be viewed through the website provided by the Revaluation company:

What is Next?

Informal Hearings. Property owners who feel their new assessments do not reflect 70% of the fair market value, or who simply have questions or concerns, are encouraged to have their new assessments reviewed though an informal hearing with a representative of eQuality. These hearings will run 12/06-12/17, are by appointment only, and can be scheduled online at or by calling 888-457-1543. The Assessor's Office is not able to schedule appointments. Supportive documentation may be uploaded via the online form, or you may drop it off at the Town Hall within 7 days of your scheduled hearing.

Formal Hearings: Board of Assessment Appeals. Any property owners who feel aggrieved by the assessment process, even after having conducted an informal hearing with eQuality, may file an appeal with the Board of Assessment Appeals (BAA), which is expected to meet in March of 2022. To have a hearing before the BAA, property owners must submit a fully-completed written application on or before February 22, 2022.


The purpose of a revaluation is not to raise revenue; it is to establish equity by redistributing the tax burden based on the current value of the property. It is important to understand that taxes are ultimately driven by municipal spending, not by your assessment. Stay involved and informed by attending the Town meetings that will set the mill rate, which will determine the taxes you must pay.


Michael Bekech and Shauna Ham
Assessor and Assistant Assessor, Town of Killingworth


SEPTEMBER 30, 2021
            * Honorable discharge filing to Town Clerk

OCTOBER 1, 2021

           *100 % Totally Disabled Exemption application

           *Additional Veterans Tax Relief Application
                        Income limit range is $37,600 single to $45,800 married (must include Social Security). 
                       A biennial application is required.    

           *Blind exemption application

           *Ambulatory Converted Vehicles application

           *PA 490 Forest Report by a Connecticut Certified Forester

OCTOBER 31, 2021

           * Exemption Application for Farm Machinery (M28) AND 2019 Schedule F form                        

NOVEMBER 1, 2021

           * Filing of Personal Property Declaration

           * Filing of Lessee’s Report

           * Application for Manufacturing Machinery & Equipment Exemption

           * Application for Commercial Vehicle Exemption (Form M-65 and M-65MV)

DECEMBER 31, 2021

            * Application for exemption of (1) motor vehicle for those currently serving in the US Armed Forces
            * Application to classify property under PA 490 Farm, Forest, or Open Space

If you have any questions, please do not hesitate to contact the Assessor's office by phone at (860)663-1765 Ext 506 or by email
The Assessor’s primary objective is to make sure that the property tax burden is distributed fairly among Killingworth property owners. The office assesses all taxable property located within the town according to state law and under state oversight. The assessor is also responsible for reviewing and approving various forms of property tax relief and exemptions, such as senior tax relief and veterans’ exemptions.

The assessor produces the annual Grand List, a record of all taxable and tax-exempt property in Killingworth. Under state law, the Grand List must be submitted by the end of January for all property ownership on October 1 of the previous year.
Frequently Asked Questions
Q. What is an assessment?
A. An assessment is the value placed on property appearing in the Grand List—the list of all taxable and tax-exempt property in the town. To determine the tax liability for a particular property, the property assessment is multiplied by the town’s mill rate. In Connecticut, an assessment is equal to 70 percent of the fair market value as established by the municipal assessor. For motor vehicles and business personal property, this assessment is recalculated annually as of October 1st. Real estate assessments are established during the town-wide revaluations, which are performed on a schedule established by state law.

Q. What is the fair market value, and who determines it?
A. Fair market value is a legal term defined by the courts and state statute as the purchase price that a property would bring on the open market, given prudent, knowledgeable, and willing buyers and sellers. Fair market value is the standard by which the fairness of all assessments is judged.

Buyers and sellers determine the fair market value of real estate. The appraiser or assessor analyzes real estate transactions that occur within a community and determines the factors that led to the final sale prices. These analyses are then used to estimate the market values of all properties in a community. Some of the typical factors used by an appraiser in estimating market values include location, condition, age, size, and quality of improvements.

Q. What guidelines must the assessor follow?
A. The assessor follows:
  • Connecticut General Statutes (primary Title 12)
  • relevant case law (which assists in interpreting these statutes)
  • regulations and administrative pronouncements from the State of Connecticut Office of Policy & Management, Intergovernmental Policy Division.
Q. How is the tax rate established?
A. The tax rate, or mill rate, is set annually by the elected Board of Finance members once the town’s budget has been approved in Town Meeting and the Regional School District 17 budget has been approved in a referendum. In simplest terms, the mill rate is the town’s levy—the amount of money the town needs to generate through the property tax in order to provide town and school district services—divided by the taxable grand list. In recent years, the education budget has accounted for about 80 percent of all tax dollars.

Q. How can I determine if my assessment is fair?
A. To judge the fairness of your assessment, two questions should be asked. First, does the assessment represent 70 percent of the probable selling price as of the revaluation date of October 1, 2016.

Second, is my assessment similar to that of comparable properties in town as of October 1, 2016. The assessor's office maintains information that will help you answer these questions, including a list of properties that have sold in town and the assessments of all properties in town.

Town of Killingworth
323 Route 81, Killingworth, CT 06419
Contact by Email