51 ISLAND DR, Key Biscayne, FL 33149

51 ISLAND DR, Key Biscayne, FL 33149 is a 6-bedroom, 4.5-bathroom residential - single family : 1 unit built in 1989 with 4,790 square feet of living space on a 15,000 square foot lot. The property is currently owned by DEEP ISLAND 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 2023-12-12 for $5,150,000. There are 5 recorded sales for this property. The 2025 assessed value is $4,791,450 with a market value of $4,791,450.

This breaks down to $3,705,000 for the land and $1,086,450 for the building. The assessed value increased 10% from $4,372,911 in 2024. 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. 51 ISLAND 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 2019 to 2023, with 5 recorded transactions in the public record. The current assessed value represents 93% of the most recent sale price. Based on the most recent sale, this property traded at $1075 per square foot — a key metric for comparing value across Key Biscayne's real estate market..