If you’re a homeowner in Fairfield County, you may have already received - or will soon receive - official notice from your town regarding an upcoming property revaluation. These mailings are part of a routine five-year process, but they often leave homeowners with questions:
What is this?
What am I supposed to do with it?
And will it affect my taxes?
Here’s what you need to know.
Why Revaluations Happen
In Connecticut, every town is required by law to conduct a property revaluation at least once every five years. The goal is fairness: ensuring that each home is assessed at its current market value so that the local tax burden is distributed proportionately.
It’s not about raising revenue.
It’s about updating values to reflect the market today - not five years ago.
Towns Affected in 2025
Several of the communities we serve are in the middle of this process now:
These updated assessments will be based on your home’s estimated market value as of October 1, 2025, and will impact tax bills beginning in July 2026.
Other towns - like Weston, Wilton, Ridgefield, New Canaan, and Darien - recently completed their revaluations and are not affected in this cycle.
What to Expect (and When)
STEP 1: Review Your Property Data Mailer
Timing: Spring through Summer 2025
If you haven’t already, you’ll likely receive a property information form in the mail. This document lists key features of your home - things like square footage, bedroom and bathroom count, finished spaces, and more.
This is not a bill or a valuation. It’s the foundational data that will be used to calculate your updated assessment.
Action:
This is your first opportunity to ensure the town is working with accurate, up-to-date information.
STEP 2: Market Analysis and Inspections
After data collection, the town (or its third-party vendor) will complete a thorough review of recent sales and market trends. Some properties may be selected for field inspections or aerial imagery review - especially if permits have been pulled or data is missing.
STEP 3: Receive Your New Assessment
Timing: November–December 2025
You’ll receive a notice in the mail listing your new assessed value - typically calculated at 70% of your home’s market value as of October 1, 2025, in accordance with Connecticut law.
STEP 4: Appeal Window
Informal Hearings: Typically held shortly after notices are mailed
Formal Appeal Deadline: February 20, 2026 (for most towns)
If the new value seems inaccurate or misaligned with current market conditions, you have options.
Start with an informal hearing - a chance to ask questions or submit supporting information.
If needed, file a formal appeal with your town’s Board of Assessment Appeals by the February deadline.
STEP 5: Updated Tax Bills
Timing: July 2026
Your new assessment will appear on your 2026–2027 property tax bill, along with an updated mill rate - the rate towns use to calculate individual property taxes.
Will My Taxes Go Up?
Not necessarily.
Revaluations don’t change how much a town collects overall - they change how that total is divided.
In either case, most towns will adjust the mill rate to balance the budget based on new values.
Our Perspective
This process can feel opaque, especially if it’s your first time receiving one of these notices. But it’s also an opportunity to engage - starting with a simple review of your property information.
If you’d like help understanding how your home’s assessed value compares to recent sales in your neighborhood, or whether an appeal might make sense, we’re always happy to offer guidance.
We know the homes. We know the market. And we’re here to be a resource.
FAQs About the 2025 Property Revaluation in Fairfield County CT
What is the 2025 property revaluation in Connecticut?
It’s a scheduled update of assessed home values required by state law. In 2025, towns across Fairfield County-including Fairfield, Westport, and Greenwich-are revaluing properties to reflect current market conditions. These new figures will be used to calculate tax bills starting in July 2026.
Will my Fairfield CT property tax assessment increase this year?
That depends on how your home’s market value compares to others in your area. If your property appreciated more than the townwide average, you may see a higher assessment. If it appreciated less, your assessed value (and potentially your taxes) may go down.
How does the Westport CT home assessment affect my tax bill?
Your Westport home’s updated assessed value will be used, alongside the town’s adjusted mill rate, to determine your July 2026 property taxes. Even if your assessment increases, your tax bill may not rise proportionately because the mill rate typically shifts to balance total revenue.
What are my options if I disagree with my new assessment?
Homeowners have the right to question or challenge their updated valuation. You can request an informal hearing to review your case, and if needed, file a formal appeal. If you’re unsure how to appeal property taxes in Connecticut, start by checking your town’s appeal deadline, typically February 20, 2026.
How do Greenwich CT real estate taxes fit into this revaluation?
Like other towns revaluing in 2025, Greenwich will use updated assessments to calculate real estate taxes for the 2026–2027 fiscal year. Homeowners should review their property data carefully, correct any errors, and evaluate how their new value compares to similar homes in the market.
What should I do when I receive the revaluation mailer?
Before assessments are issued, you’ll receive a property data mailer. This is your chance to confirm or correct the details the town has on file: square footage, bedroom count, finished spaces, and more. It directly impacts how your home will be valued in the revaluation process.
Photo credit: Thane Grauel
355 Riverside Avenue Westport, CT 06880
355 Riverside Avenue Westport, CT 06880