- 6 bd
- 3 ba
- 2,856 sqft

The average Key Biscayne, FL home value is $1,725,646, up 7.7% over the past year. (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: $1,725,646
1-Year Value Change: +7.7%
(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 Key Biscayne, FL is $1,725,646 as of September 2026. This represents a 1.2% increase compared to last month and a 7.7% increase year-over-year.
Home values in Key Biscayne, FL have increased by 1.2% month-over-month and 7.7% year-over-year.
The median home value in Key Biscayne, FL ($1,725,646) compares to: Miami-Dade County ($523,240), Florida ($375,361), and the U.S. national median ($366,157).