515 ALLENDALE RD, Key Biscayne, FL 33149

515 ALLENDALE RD, Key Biscayne, FL 33149 is a 4-bedroom, 3-bathroom residential - single family : 1 unit built in 1950 with 2,742 square feet of living space on a 7,622 square foot lot. The property is currently owned by ERWIN GONZALEZ MARY DE CASTRO FODEN, 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 2009-09-14 for $875,000, when CARMEN A DEL CORRAL sold to ERWIN GONZALEZ &W. The property has appreciated $527,000 (151%) since the prior sale of $348,000 on 1990-07-01. There are 3 recorded sales for this property.

The 2025 assessed value is $1,322,620 with a market value of $2,353,937. This breaks down to $1,981,720 for the land and $372,217 for the building. The assessed value increased 3% from $1,285,345 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. 515 ALLENDALE RD, 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 1977 to 2009, with 3 recorded transactions in the public record. The current assessed value represents 151% 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 $319 per square foot — a key metric for comparing value across Key Biscayne's real estate market..