631 N MASHTA DR, Key Biscayne, FL 33149

631 N MASHTA DR, Key Biscayne, FL 33149 is a 4-bedroom, 3-bathroom residential - single family : 1 unit built in 1958 with 2,255 square feet of living space on a 15,000 square foot lot. The property is currently owned by FOR FUN 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 2022-03-09 for $8,500,000. There are 3 recorded sales for this property. The 2025 assessed value is $6,855,108 with a market value of $7,506,916.

This breaks down to $7,500,000 for the land and $6,916 for the building. The assessed value increased 10% from $6,231,917 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.

There are active mortgage liens totaling $4,784,275 recorded against this property. 631 N MASHTA 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 2017 to 2022, with 3 recorded transactions in the public record. The current assessed value represents 81% of the most recent sale price. Based on the most recent sale, this property traded at $3769 per square foot — a key metric for comparing value across Key Biscayne's real estate market..