400 S Mashta Dr, Key Biscayne, FL 33149
400 S Mashta Dr, Key Biscayne, FL 33149: 9,619 sq ft living area, 0.83 acre lot, built 2003, single family, county just value $21,808,007 (tax roll). Miami-Dade County record: parcel map.
- Parcel ID: fl-23-2452050170150
- County: Miami-Dade County, FL
- Land use: Single family
- Lot size: 0.83 acres (36,355 sq ft)
- Living area: 9,619 sq ft
- Year built: 2003
- County just value (tax roll) — not a market value: $21,808,007
- County assessed value (tax roll): $21,808,007
- FEMA flood zone: Not on file yet
Full property report · Open in interactive map
Source: Florida county property appraiser public records and FEMA NFHL; data refreshed Jun 25, 2026. Values are county tax-roll figures, not appraisals.