901 HARBOR DR, Key Biscayne, FL 33149

901 HARBOR DR, Key Biscayne, FL 33149 is a 7-bedroom, 8.5-bathroom residential - single family : 1 unit built in 2023 with 7,585 square feet of living space on a 15,237 square foot lot. The property is currently owned by VALMAT MANAGEMENT LLC, recorded as of 2026-03-29. The mailing address differs from the property address, suggesting this may be an investment property or rental.

The most recent sale was on 2023-06-16 for $17,500,000. There are 4 recorded sales for this property. The 2025 assessed value is $11,165,791 with a market value of $11,165,791.

This breaks down to $7,237,575 for the land and $3,928,216 for the building. The assessed value increased 8% from $10,375,765 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.

901 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 2011 to 2023, with 4 recorded transactions in the public record.

The current assessed value represents 64% of the most recent sale price. This low ratio may suggest the property is under-assessed relative to market value, common after recent improvements or a competitive purchase. Based on the most recent sale, this property traded at $2307 per square foot — a key metric for comparing value across Key Biscayne's real estate market..