421 3RD St, Key Colony Beach, FL 33051
421 3RD St, Key Colony Beach, FL 33051: 0.15 acre lot, vacant residential, county just value $682,678 (tax roll). Monroe County record: parcel map.
- Parcel ID: fl-54-0466 33 00072830000000
- County: Monroe County, FL
- Land use: Vacant residential
- Lot size: 0.15 acres (6,704 sq ft)
- County just value (tax roll) — not a market value: $682,678
- County assessed value (tax roll): $682,678
- 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.