340 12TH St, Key Colony Beach, FL 33051
340 12TH St, Key Colony Beach, FL 33051: 2,847 sq ft living area, 0.30 acre lot, built 1965, single family, county just value $1,540,743 (tax roll). Monroe County record: parcel map.
- Parcel ID: fl-54-0566 33 00077590000000
- County: Monroe County, FL
- Land use: Single family
- Lot size: 0.30 acres (12,880 sq ft)
- Living area: 2,847 sq ft
- Year built: 1965
- County just value (tax roll) — not a market value: $1,540,743
- County assessed value (tax roll): $1,239,865
- 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.