How Property Assessment Works Across Connecticut's 169 Towns

Connecticut assesses property at the town level. The state abolished county government in 1960, so the eight counties are now mostly geographic labels. Each of the 169 towns and cities runs its own assessor's office. That office decides what your home, car or business equipment is worth for tax purposes.

State law sets the ground rules. Title 12 of the Connecticut General Statutes covers taxation. The Office of Policy and Management (OPM) issues guidance to towns and runs the certification program for municipal assessors. Your assessor works within those rules but answers to the town, not to a county or state boss.

Three rules explain most of what appears on an assessment notice. Property is valued as of October 1 each year, and that value goes onto the town's grand list. Taxable property is assessed at 70 percent of fair market value, so a home worth $400,000 carries an assessment of $280,000. Towns must also revalue real estate at least every five years, and some run a statistical update partway through the cycle.

The assessor and the tax collector are separate offices. The assessor sets the value and keeps the property record cards. The tax collector sends bills and takes payment. If you want to dispute a value, start with the assessor. If you have a question about a due date or interest charge, go to the collector.

Your tax equals the assessed value multiplied by the mill rate, divided by 1,000. One mill is $1 of tax for every $1,000 of assessed value. The town sets the mill rate after it adopts a budget. Two towns with identical home values can therefore send very different bills.

Motor vehicles are assessed too, and they are taxed by the town where the car is registered. Vehicles registered after October 1 can be taxed through a supplemental list, which produces a separate bill later in the year. If you move within Connecticut, update your DMV address so the right town bills you.

Assessor Offices in Fairfield, Hartford and New Haven Counties

The three most populous counties carry the largest share of Connecticut's grand list, and their offices handle the heaviest workloads. In Fairfield County, the Fairfield Town Assessor works from 611 Old Post Road (203-256-3110). Bridgeport's office is at 45 Lyon Terrace (203-576-7241). Danbury's city assessor is at 155 Deer Hill Avenue (203-797-4556), and Darien's office is at 2 Renshaw Road (203-656-7310).

Values along the Gold Coast run high, so even a small percentage change at revaluation can move a tax bill by hundreds of dollars. Before you accept a new assessment in Darien or Fairfield, pull your property record card. Check the square footage, the bedroom and bathroom counts, and the lot size. Simple data errors like these are quick to correct when you catch them early.

In Hartford County, the listings include Bristol (111 North Main Street, 860-584-6250), Berlin (240 Kensington Road, 860-828-7105), Bloomfield (800 Bloomfield Avenue, 860-769-3530) and East Hartford (740 Main Street, 860-291-7260). The East Windsor Assessor is at 11 Rye Street in the village of Broad Brook (860-623-8878). That is why a search for Broad Brook leads to the East Windsor office rather than a separate town.

In New Haven County, our database includes Branford (1019 Main Street, 203-488-2039) and Derby (1 Elizabeth Street, 203-736-1455). It also lists an office named the New Haven County Assessor's Office at 165 Church Street (203-946-4800). Counties have no assessing authority in Connecticut, so call first and confirm which town's parcels that office handles before you make the trip.

Small-Town Assessors in Litchfield, Windham and Tolland Counties

Rural Connecticut works differently from the coast. Some small towns have a part-time assessor, or one who also covers a neighboring town, and counter hours may be limited to a few days a week. Call ahead instead of driving to town hall on a guess.

Litchfield County has 13 listings in our database. They include the Litchfield County Assessor's Office at 74 West Street in Litchfield (860-567-7559) and the Bridgewater Assessor at 44 Main Street South (860-355-9379). Bridgewater is a small town, so staffing is lean and an appointment can save you a second visit. The same advice applies in the hill towns around it.

The northeast corner is covered by Windham County, where the Brooklyn Assessor is at 4 Wolf Den Road (860-774-5611) and the Chaplin Assessor is at 495 Phoenixville Road (860-455-9333). In Tolland County, Andover (17 School Road, 860-228-9423) and Columbia (323 Connecticut 87, 860-228-9555) are next-door neighbors. If you own land in both towns, you will deal with two separate offices and two separate bills.

Middle Connecticut and the shoreline sit between the extremes. In Middlesex County, you will find Cromwell (41 West Street, 860-632-3442), Deep River (174 Main Street, 860-526-6029) and East Hampton (20 East High Street, 860-267-2510). Burlington (200 Spielman Highway, 860-673-3901) and East Granby (9 Center Street, 860-653-2852) are in the Hartford area and are also good examples of smaller offices that reward a phone call first.

What to Bring to a Connecticut Assessor and When to Go

Timing matters in Connecticut. The assessment year follows a predictable pattern, and a missed deadline can cost you money.

Bring the basics to any visit: photo ID, your property address and a recent tax bill or deed. If you are claiming a veterans exemption, record your discharge papers with the town clerk first, then ask the assessor to apply the exemption. For an appeal, bring evidence. A recent appraisal, sales of similar homes nearby and dated photographs of defects all carry more weight than a general complaint about taxes.

Ask for your property record card before you decide to appeal. It shows exactly what the town believes about your property, from finished basement space to the age of the roof. Many assessors will talk through the numbers informally, and a short, polite conversation often settles a mistake without a hearing.

Property assessor offices in Connecticut operate under state property tax statutes that specify how properties must be valued, how often reappraisals occur, and what exemptions are available to qualifying homeowners. The state department of revenue or taxation typically provides oversight and technical guidance to county assessors to ensure consistent valuation practices statewide.

Assessor locations are available in 89 cities across Connecticut. They are spread across 8 counties.

Cities with the highest concentration include Fairfield, Litchfield, New Haven, where high real estate activity and complex commercial properties create greater demand for assessor services and property valuation resources.

Property owners in Connecticut should verify that their primary residence homestead exemption is active and confirm the annual appeal deadline with their local assessor office, as missing the deadline means waiting until the following tax year to contest a valuation.

Assessor by Counties

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Many county assessor offices in Connecticut now offer online property search tools where homeowners can view their assessed value, recent sales history, and exemption status without visiting the office. If you have questions about a recent reassessment notice, calling or emailing the assessor's office is often the fastest way to get a response before filing a formal appeal.

Browse Assessor by county across Connecticut to find the nearest location.

Finding Your Parcel and Records in Connecticut Towns

Every Connecticut parcel has a record card at the assessor's office. The card lists the owner, lot size, building details, recent sales and the current assessed value. Many towns also post their records in an online database, which you can usually search by owner name or street address. If your town does not, counter staff can print the card for you, sometimes for a small copying fee.

Deeds and mortgages sit at a different counter. The town clerk keeps the land records, and the assessor uses them only to track sales and ownership changes. When you buy a house, the new deed reaches the assessor through the clerk. Mailing address changes are a different matter, so tell both the assessor and the tax collector.

Coastal and eastern Connecticut follow the same statutes with a different rhythm. In New London County, the New London Assessor at 181 State Street (860-447-5216) serves a busy port city, while Colchester's office at 127 Norwich Avenue works at a smaller scale. Wherever you live, bring your parcel address, a photo ID and any notice you received from the town.

Connecticut Assessor FAQs

You deal with your town. Connecticut abolished county government in 1960, and property assessment has been a municipal job ever since. Each of the 169 towns and cities has its own assessor, and that office values every parcel inside its borders. Some listings in our database carry a county name, such as the Litchfield County Assessor's Office at 74 West Street in Litchfield, but the county label is a geographic grouping. Before you visit, call the listed number and confirm that the office handles your parcel. If your address is in a village such as Broad Brook, remember the village is part of a larger town, in that case East Windsor.

Start with fair market value as of the October 1 assessment date. Connecticut assesses taxable property at 70 percent of that value. Then multiply the assessed value by the town's mill rate and divide by 1,000. A home valued at $300,000 would carry an assessment of $210,000. At a mill rate of 30, the tax would be $6,300 for the year. The assessor controls the first step, while the town budget drives the mill rate. If you think your bill is too high, check the value first, because that is the part an assessor or appeals board can change.

Appeals to the town's Board of Assessment Appeals must be filed on or before February 20 for the grand list year in question. Use the form your assessor's office provides, and attach evidence such as a recent appraisal, comparable sales or photographs showing condition problems. The board generally holds hearings in March and issues a written decision. If you still disagree, state law lets you take the case to Superior Court, typically within two months of the board's decision. After a revaluation, many assessors also hold informal review sessions first, so ask whether your town offers one before the formal deadline passes.

In most cases, yes. Business owners declare taxable personal property, such as machinery, furniture, computers and tools, with the local assessor each year. The filing window runs from October 1 to November 1. A late or missing declaration can bring a 25 percent penalty added to the assessment. Keep a depreciation schedule and purchase records, because the assessor may ask for backup. If you opened, moved or closed a business during the year, tell the assessor in the town where the equipment sits. Some exemptions and incentives exist for certain equipment, so ask your town what applies before you file.

Cars are taxed by the town where they are registered, so your DMV registration address matters. The assessor values each vehicle with a published pricing guide as of October 1. Vehicles registered after that date can appear on a supplemental list, which produces a separate bill later. If the value looks wrong, start with the assessor, since many errors involve the trim level or a vehicle you already sold. Formal appeals on motor vehicles go to the Board of Assessment Appeals, which usually meets in September. Bring your registration, the bill, and proof of sale or plate surrender if you no longer own the car.

Several programs exist, and the rules come from state law. Veterans who served during qualifying periods may claim an exemption after recording their discharge papers with the town clerk and then asking the assessor to apply it. Elderly and permanently disabled homeowners may qualify for a state-backed tax relief program with income limits that are adjusted over time. The application window is usually in spring, and the assessor's office takes the paperwork. Bring proof of age or disability, income documents and ownership details. Because limits and amounts change, call your town's assessor for current numbers instead of relying on an old figure.