In December 2025, Key Biscayne, FL homes were selling for an average price of $2,759,719, Key Biscayne, FL homes on average sell after 103 days on the market compared to 94 days last year. There were 201 homes sold in Key Biscayne, FL for December 2025, compared to 233 last year.
The average list price of condos/co-ops in Key Biscayne, FL, was $2,328,189 in December 2025, compared to $1,861,919 in December 2024.
Key Biscayne, FL Market Trend for Lots/Land
Average List Price
The average list price of lots/land in Key Biscayne, FL, was $0 in December 2025, compared to $0 in December 2024.
Key Biscayne, FL Market Trend for Commercial
Average List Price
The average list price of commercial in Key Biscayne, FL, was $1,199,000 in December 2025, compared to $990,836 in December 2024.
Key Biscayne, FL Housing Market Analysis
The average list price in Key Biscayne, FL is $4,755,074. The average list price in Key Biscayne, FL went up 24.71% from 2024 to 2025. Key Biscayne, FL home resale inventories is 164, which increased 100.00% since 2024. The average list price per square foot in Key Biscayne, FL is $1,493. 2024 it was $1,252.
