390 ATLANTIC RD, Key Biscayne, FL 33149

390 ATLANTIC RD, Key Biscayne, FL 33149 is a 5-bedroom, 4-bathroom residential - single family : 1 unit built in 1996 with 3,712 square feet of living space on a 12,000 square foot lot. The property is currently owned by KEITH AUSTIN MCQUILLEN ASHLEY CHLOE SHNAPIER, 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 2021-05-28 for $3,615,000, when CARLOS B DESCHAPELLES &W ELENA sold to KEITH AUSTIN MCQUILLEN . The property has appreciated $3,191,000 (753%) since the prior sale of $424,000 on 1994-10-01. There are 3 recorded sales for this property.

The 2025 assessed value is $3,455,760 with a market value of $4,365,684. This breaks down to $3,360,000 for the land and $1,005,684 for the building. The assessed value increased 3% from $3,358,368 in 2024.

The property has the following tax exemptions: homestead. The median household income in this area is $170,682, and the median home value is $1,539,500. The population density is 16,591 people per square mile.

There are active mortgage liens totaling $1,992,590 recorded against this property. 390 ATLANTIC 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 1992 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 $974 per square foot — a key metric for comparing value across Key Biscayne's real estate market..