528 WILLIAM St, Key West, FL 33040
528 WILLIAM St, Key West, FL 33040: 2,648 sq ft living area, 0.10 acre lot, built 1933, single family, county just value $2,974,489 (tax roll). Monroe County record: parcel map.
- Parcel ID: fl-54-0668 25 00008530000000
- County: Monroe County, FL
- Land use: Single family
- Lot size: 0.10 acres (4,455 sq ft)
- Living area: 2,648 sq ft
- Year built: 1933
- County just value (tax roll) — not a market value: $2,974,489
- County assessed value (tax roll): $2,974,489
- 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.