500 W Mashta Dr, Key Biscayne, FL 33149
500 W Mashta Dr, Key Biscayne, FL 33149: 7,970 sq ft living area, 0.48 acre lot, built 1999, single family, county just value $11,984,960 (tax roll). Miami-Dade County record: parcel map.
- Parcel ID: fl-23-2452050170080
- County: Miami-Dade County, FL
- Land use: Single family
- Lot size: 0.48 acres (20,865 sq ft)
- Living area: 7,970 sq ft
- Year built: 1999
- County just value (tax roll) — not a market value: $11,984,960
- County assessed value (tax roll): $8,123,646
- 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.