FEMA flood zone rules in North Charleston, SC — also called floodplain regulations or special flood hazard area (SFHA) rules — determine flood insurance requirements and elevation standards for new construction.
North Charleston has significant flood-prone areas and participates in the National Flood Insurance Program (NFIP). Development in flood zones requires compliance with FEMA regulations and the city's flood damage prevention ordinance.
North Charleston participates in the NFIP and the Community Rating System (CRS), which provides flood insurance discounts. The city's Flood Damage Prevention Ordinance requires that new construction and substantial improvements in Special Flood Hazard Areas (SFHAs) be elevated above the Base Flood Elevation (BFE) plus freeboard. Flood zone determinations are based on FEMA Flood Insurance Rate Maps (FIRMs). A floodplain development permit is required for any work in an SFHA. Substantial damage assessments are conducted after storm events.
Building in flood zones without proper permits and elevation certificates results in fines, stop-work orders, and denial of flood insurance. Non-compliant structures may be required to be brought into compliance or removed.
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Side-by-side rule comparisons with other cities in Charleston County.
See how other cities in Charleston County handle flood zones.
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