455 WARREN LN, Key Biscayne, FL 33149

455 WARREN LN, Key Biscayne, FL 33149 is a 3-bedroom, 2-bathroom residential - single family : 1 unit built in 1951 with 2,182 square feet of living space on a 7,633 square foot lot. The property is currently owned by SANTIAGO MAS DANIELLE MARI MAS, 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 2020-12-16 for $1,800,000, when EDGARDO ARMANDO sold to SANTIAGO MAS. The property has appreciated $160,000 (10%) since the prior sale of $1,640,000 on 2013-09-30. There are 3 recorded sales for this property.

The 2025 assessed value is $1,439,929 with a market value of $2,304,048. This breaks down to $1,984,580 for the land and $319,468 for the building. The assessed value increased 3% from $1,399,348 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 $1,397,543 recorded against this property.

455 WARREN LN, 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 2005 to 2020, with 3 recorded transactions in the public record.

The current assessed value represents 80% of the most recent sale price. Based on the most recent sale, this property traded at $825 per square foot — a key metric for comparing value across Key Biscayne's real estate market..