Westport 2025 Property Revaluation Just Released

Westport's 2025 revaluation is out, and a higher assessment does not automatically mean a higher tax bill. Here is how to read yours and what to do next. 

Westport's 2025 revaluation raised residential assessments by roughly 61% versus the 2020 revaluation. Notices are going out to all property owners now, reflecting market conditions as of October 1, 2025. Here is what your number means and when it is worth appealing. 

A Sharp Rise in Residential Values 

According to confirmed reports from the Town of Westport, residential property assessments have increased by an average of approximately 61% compared to the previous revaluation in 2020. Westport CT 

This dramatic rise reflects strong demand and sustained appreciation in Westport’s real estate market over the past five years. While each property’s new value will vary, this average gives homeowners a clear sense of how the local market has evolved. Westport CT 

What Your New Notice Means 

The figure on your revaluation notice represents your assessed value, which is 70% of your home’s estimated fair market value as of the valuation date. Westport CT

 It’s important to understand:

1. A higher assessment does not automatically mean a higher tax bill.
2. The Town’s mill rate will be reset in Spring 2026 once the updated Grand List (total townwide values) is certified and the Town budget is finalized. Westport CT 

In many cases, the mill rate drops proportionally to accommodate increases across the majority of assessments - but changes in individual tax bills will depend on how each property’s increase compares to the overall average and the final budget. Westport CT 

Next Steps for Homeowners 

Review Your Notice Carefully: 

When you receive your assessment, compare it with your expectations and recent neighborhood sales. 

Request an Informal Review (December 2025):

If your property details seem inaccurate or your assessment feels out of line with the market, you can schedule an informal review with a representative from Vision Government Solutions through late December. Westport Journal 

Formal Appeal (February 1–20, 2026):

 Should further adjustment be needed, formal appeals to the Board of Assessment Appeals are accepting applications in early February. Westport Journal 

Mill Rate & Tax Bills (Spring-Summer 2026):

 The Board of Finance will set the new mill rate based on the updated Grand List this coming Spring. Your first tax bill under the new valuation will be due in Summer 2026. Westport CT 

What This Means for Westport 

Westport’s market - particularly for single-family homes - has remained exceptionally resilient, and the revaluation results highlight that strength. A 61% average increase underscores the town’s desirability and the continued premium value of Westport living. Westport CT 

That said, revaluation is designed to ensure fairness and equity - not to raise revenue - by aligning assessed values with current market conditions across the entire community. Westport CT

For the seller side of this, see what your home is actually worth. For the buyer side, my Fairfield County buyer’s guide walks through the full cost of a purchase.

If you’re considering buying or selling in Fairfield County, I’m here to help. With over 15 years of experience and a deep understanding of the local market, I can provide the guidance and strategy you need to make your next move a confident one. Reach out anytime—I’d love to connect!

— Shoshana Snyder, Homes by Shoshana