750 S MASHTA DR, Key Biscayne, FL 33149

750 S MASHTA DR, Key Biscayne, FL 33149 is a 5-bedroom, 6.5-bathroom residential - single family : 1 unit built in 1994 with 5,967 square feet of living space on a 11,280 square foot lot. The property is currently owned by GUARDALAVACA LLC, recorded as of 2026-03-29. The owner appears to be owner-occupied based on the mailing address matching the property address.

The most recent sale was on 2021-12-21 for $10,900,000, when MARYVADIMAR LLC sold to GUARDALAVACA LLC. The property has appreciated $4,300,000 (65%) since the prior sale of $6,600,000 on 2020-04-29. There are 3 recorded sales for this property.

The 2025 assessed value is $10,441,031 with a market value of $10,441,031. This breaks down to $6,993,600 for the land and $3,447,431 for the building. The assessed value increased 5% from $9,916,197 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 $5,283,127 recorded against this property. 750 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 2015 to 2021, with 3 recorded transactions in the public record. The current assessed value represents 96% of the most recent sale price.

Based on the most recent sale, this property traded at $1827 per square foot — a key metric for comparing value across Key Biscayne's real estate market..