430 GRAND BAY DR 505, Key Biscayne, FL 33149

430 GRAND BAY DR 505, Key Biscayne, FL 33149 is a 3-bedroom, 3.5-bathroom residential - total value : condominium - residential built in 1999 with 2,930 square feet of living space. The property is currently owned by GRAND BAY 505 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 2023-11-09 for $3,750,000. There are 4 recorded sales for this property. The 2025 assessed value is $2,501,875 with a market value of $2,501,875.

The assessed value decreased 4% from $2,611,833 in 2024. 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 $170,682, and the median home value is $1,539,500. The population density is 16,591 people per square mile. 430 GRAND BAY DR 505, 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 2012 to 2023, with 4 recorded transactions in the public record. The current assessed value represents 67% of the most recent sale price.

This low ratio may suggest the property is under-assessed relative to market value, common after recent improvements or a competitive purchase. Based on the most recent sale, this property traded at $1280 per square foot — a key metric for comparing value across Key Biscayne's real estate market..