490 S MASHTA DR, Key Biscayne, FL 33149

490 S MASHTA DR, Key Biscayne, FL 33149 is a 5-bedroom, 4.5-bathroom residential - single family : 1 unit built in 1991 with 6,369 square feet of living space on a 16,271 square foot lot. The property is currently owned by SOUTH MASHTA REV TR ALBERTO IGNACIO POLEO, recorded as of 2026-04-19. The mailing address differs from the property address, suggesting this may be an investment property or rental.

The most recent sale was on 2009-12-07 for $6,150,000, when EVELIO ESTRELLA sold to MASHTA REVOCABLE TRUST. The property sold for $1,250,000 less than the prior sale of $7,400,000 on 2008-02-01. There are 3 recorded sales for this property.

The 2025 assessed value is $6,760,859 with a market value of $11,609,868. This breaks down to $10,088,020 for the land and $1,521,848 for the building. The assessed value increased 3% from $6,570,320 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. 490 S 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 2001 to 2009, with 3 recorded transactions in the public record. The current assessed value represents 110% of the most recent sale price.

Based on the most recent sale, this property traded at $966 per square foot — a key metric for comparing value across Key Biscayne's real estate market..