420 Harbor Dr, Key Biscayne, FL 33149
420 Harbor Dr, Key Biscayne, FL 33149: 11,014 sq ft living area, 0.54 acre lot, built 2015, single family, county just value $19,190,951 (tax roll). Miami-Dade County record: parcel map.
- Parcel ID: fl-23-2442320070070
- County: Miami-Dade County, FL
- Land use: Single family
- Lot size: 0.54 acres (23,652 sq ft)
- Living area: 11,014 sq ft
- Year built: 2015
- County just value (tax roll) — not a market value: $19,190,951
- County assessed value (tax roll): $19,190,951
- FEMA flood zone: Not on file yet
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Source: Florida county property appraiser public records and FEMA NFHL; data refreshed Jun 25, 2026. Values are county tax-roll figures, not appraisals.