1040 Mariner Dr, Key Biscayne, FL 33149
1040 Mariner Dr, Key Biscayne, FL 33149: 4,069 sq ft living area, 0.32 acre lot, built 1971, single family, county just value $7,285,463 (tax roll). Miami-Dade County record: parcel map.
- Parcel ID: fl-23-2452050110140
- County: Miami-Dade County, FL
- Land use: Single family
- Lot size: 0.32 acres (14,070 sq ft)
- Living area: 4,069 sq ft
- Year built: 1971
- County just value (tax roll) — not a market value: $7,285,463
- County assessed value (tax roll): $7,285,463
- 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.