FEMA flood zone rules in Hayward, CA — also called floodplain regulations or special flood hazard area (SFHA) rules — determine flood insurance requirements and elevation standards for new construction.
Hayward participates in the National Flood Insurance Program with FEMA-mapped Special Flood Hazard Areas along San Lorenzo and Alameda Creeks and Bay shoreline. New construction in SFHAs must elevate above BFE.
Flood zone regulations in Hayward are administered under the Hayward Municipal Code Chapter 9 Flood Damage Prevention ordinance and FEMA Flood Insurance Rate Maps (FIRMs). Portions of Hayward including areas along San Lorenzo Creek, Sulphur Creek, Ward Creek, and the San Francisco Bay shoreline are mapped as Special Flood Hazard Areas (SFHA) in AE, AO, and VE zones. New construction and substantial improvements (repairs or additions valued at 50% or more of the structure) in SFHAs must have the lowest floor elevated to or above the Base Flood Elevation (BFE), typically plus 1-foot freeboard. Basements below BFE are generally prohibited in A zones. Flood insurance through the NFIP is required for federally backed mortgages in SFHAs. Elevation Certificates prepared by a licensed surveyor are required for new construction permits in flood zones.
Contact your local code enforcement office for specific penalty information.
Hayward, CA
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