- 4 bd
- 2 ba
- 2,138 sqft

The average Williamsville, NY home value is $417,142, up 4.4% over the past year, and homes go to pending in around 11 days. (Updated on )
Zillow Home Value Index (ZHVI), built from the ground up by measuring monthly changes in property level Zestimates, captures both the level and home values across a wide variety of geographies and housing types.
Typical Home Values: $417,142
1-Year Value Change: +4.4%
(Data through September 30, 2026)
Zillow is more than a place to browse homes. It’s a place to connect with a local agent, explore financing solutions, schedule home tours, understand your buying and selling power, and more.
The median home value in Williamsville, NY is $417,142 as of September 2026. This represents a 0.1% increase compared to last month and a 4.5% increase year-over-year.
Home values in Williamsville, NY have increased by 0.1% month-over-month and 4.5% year-over-year.
The median home value in Williamsville, NY ($417,142) compares to: Erie County ($295,625), New York ($524,942), and the U.S. national median ($366,157).