FEMA flood zone rules in Palm Beach County, FL — also called floodplain regulations or special flood hazard area (SFHA) rules — determine flood insurance requirements and elevation standards for new construction.
Palm Beach County has extensive coastal AE and VE flood zones requiring elevation above Base Flood Elevation (BFE). Inland AE zones near canals and Lake Okeechobee. Flood insurance mandatory for federally backed mortgages in SFHAs.
FEMA FIRM maps (effective October 5, 2017) classify PBC properties into Special Flood Hazard Areas (SFHAs). VE zones (coastal velocity, wave action) along Atlantic beaches require pile or column foundations and breakaway walls below BFE. AE zones (1 percent annual chance flood) require lowest finished floor at or above BFE plus 1-foot freeboard per PBC ordinance. X zones (minimal hazard) carry no federal flood insurance mandate. Substantial improvement (50 percent of structure value) triggers full flood compliance for older non-conforming homes. PBC participates in FEMA Community Rating System (CRS Class 5) providing 25 percent NFIP premium discount.
Building below BFE: must elevate or demolish. Substantial improvement non-compliance: NFIP insurance loss. Fill in floodway: $1,000 to $25,000 plus restoration.
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See how Palm Beach County's flood zones rules stack up against other locations.
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