520 N MASHTA DR, Key Biscayne, FL 33149

520 N MASHTA DR, Key Biscayne, FL 33149 is a 3-bedroom, 3-bathroom residential - single family : 1 unit built in 1963 with 2,766 square feet of living space on a 10,000 square foot lot. The property is currently owned by ANDRES DE CORRAL MARGARITA DE CORRAL, 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 2003-06-01 for $1,060,000. The property has appreciated $575,000 (119%) since the prior sale of $485,000 on 1991-04-01. There are 3 recorded sales for this property.

The 2025 assessed value is $1,695,952 with a market value of $3,484,959. This breaks down to $3,100,000 for the land and $384,959 for the building. The assessed value increased 3% from $1,648,156 in 2024.

The property has the following tax exemptions: homestead. 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 $1,023,827 recorded against this property.

520 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 1987 to 2003, with 3 recorded transactions in the public record.

The current assessed value represents 160% of the most recent sale price. This high ratio could indicate the property was purchased below market value — a potential sign of a distressed sale or off-market deal. Based on the most recent sale, this property traded at $383 per square foot — a key metric for comparing value across Key Biscayne's real estate market..