540 W Mashta Dr, Key Biscayne, FL 33149
540 W Mashta Dr, Key Biscayne, FL 33149: 2,029 sq ft living area, 0.44 acre lot, built 1982, single family, county just value $9,316,826 (tax roll). Miami-Dade County record: parcel map.
- Parcel ID: fl-23-2452050170100
- County: Miami-Dade County, FL
- Land use: Single family
- Lot size: 0.44 acres (18,997 sq ft)
- Living area: 2,029 sq ft
- Year built: 1982
- County just value (tax roll) — not a market value: $9,316,826
- County assessed value (tax roll): $1,530,841
- 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.