431 Island Dr, Key Biscayne, FL 33149
431 Island Dr, Key Biscayne, FL 33149: 12,298 sq ft living area, 1.01 acre lot, built 2017, single family, county just value $13,977,609 (tax roll). Miami-Dade County record: parcel map.
- Parcel ID: fl-23-2452050100310
- County: Miami-Dade County, FL
- Land use: Single family
- Lot size: 1.01 acres (43,812 sq ft)
- Living area: 12,298 sq ft
- Year built: 2017
- County just value (tax roll) — not a market value: $13,977,609
- County assessed value (tax roll): $9,262,695
- 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.