299 HARBOR DR, Key Biscayne, FL 33149

299 HARBOR DR, Key Biscayne, FL 33149 is a 4-bedroom, 3-bathroom residential - single family : 1 unit built in 1967 with 4,383 square feet of living space on a 7,500 square foot lot. The property is currently owned by SUSANA STEFANO MARIA FLORENCIA SMITH, recorded as of 2026-04-19. The owner appears to be owner-occupied based on the mailing address matching the property address.

The most recent sale was on 2019-06-24 for $2,800,000, when RICARDO C DE LA SERNA sold to SUSANA STEFANO. The property has appreciated $1,600,000 (133%) since the prior sale of $1,200,000 on 2008-12-15. There are 3 recorded sales for this property.

The 2025 assessed value is $3,165,364 with a market value of $3,165,364. This breaks down to $1,950,000 for the land and $1,215,364 for the building. The assessed value increased 10% from $2,888,815 in 2024.

This property is located in FEMA Flood Zone AE, a Special Flood Hazard Area with a 1% annual chance of flooding (100-year floodplain). Flood insurance is typically required by lenders for properties in this zone. The median household income in this area is $250,001, and the median home value is $2,000,001.

The population density is 3,407 people per square mile. 299 HARBOR DR, Key Biscayne, FL 33149 is located in Key Biscayne, Florida. Property records, tax assessments, sales history, and ownership information for this Key Biscayne property are sourced from miami_dade County public records.

The complete ownership history of this property spans from 1996 to 2019, with 3 recorded transactions in the public record. The current assessed value represents 113% of the most recent sale price. Based on the most recent sale, this property traded at $639 per square foot — a key metric for comparing value across Key Biscayne's real estate market..