In October 2026, the median home sale price in Key Biscayne, FL was $1,690,000, with homes selling in an average of 113 days — slower than the 95-day average last year, suggesting buyers have more negotiating room. A total of 230 homes sold in this period, up from 219 last year — a sign of an active market.
The median list price of condos/co-ops in Key Biscayne, FL, was $1,587,450 in October 2026, compared to $1,310,000 in October 2025.
Key Biscayne, FL Market Trend for Lots/Land
Median List Price
The median list price of lots/land in Key Biscayne, FL, was $0 in October 2026, compared to $0 in October 2025.
Key Biscayne, FL Market Trend for Commercial
Median List Price
The median list price of commercial in Key Biscayne, FL, was $1,450,000 in October 2026, compared to $724,500 in October 2025.
Key Biscayne, FL Housing Market Analysis
There are currently 148 homes listed for sale in Key Biscayne, FL, an increase of 60.87% compared to 2025. With inventory tight relative to sales volume, sellers are in a strong position. The median asking price is $5,889,706 (up 73.80% year-over-year), and the average price per square foot is $1,158 compared to $1,024 in 2025. Properties spend an average of 135 days on the market before going under contract.
