250 KNOLLWOOD DR, Key Biscayne, FL 33149

250 KNOLLWOOD DR, Key Biscayne, FL 33149 is a 5-bedroom, 5-bathroom residential - single family : 1 unit built in 1966 with 4,726 square feet of living space on a 16,100 square foot lot. The property is currently owned by FERNANDO H MERCENARI MARTHA ELENA IBARGUENGOYTIA, 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 2012-04-23 for $800,000, when FERNANDO H MERCENARI sold to FERNANDO H MERCENARI. The property sold for $2,700,000 less than the prior sale of $3,500,000 on 2009-10-26. There are 3 recorded sales for this property.

The 2025 assessed value is $5,009,077 with a market value of $8,673,414. This breaks down to $7,647,500 for the land and $1,025,914 for the building. The assessed value increased 3% from $4,867,908 in 2024.

The property has the following tax exemptions: homestead. 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.

250 KNOLLWOOD 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 2009 to 2012, with 3 recorded transactions in the public record.

The current assessed value represents 626% 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 $169 per square foot — a key metric for comparing value across Key Biscayne's real estate market..