FEMA flood zone rules in Thousand Oaks, CA — also called floodplain regulations or special flood hazard area (SFHA) rules — determine flood insurance requirements and elevation standards for new construction.
Portions of Thousand Oaks are in FEMA-mapped flood zones. The Conejo Creek and other waterways have associated 100-year floodplain areas. Properties in Special Flood Hazard Areas (SFHA) may require flood insurance and elevating new construction. Contact Public Works at (805) 449-2400.
Thousand Oaks has FEMA-designated flood zones along Arroyo Conejo and its tributaries. Properties in Special Flood Hazard Areas (zones A and AE) are subject to floodplain management regulations under TOMC and the National Flood Insurance Program (NFIP). Construction in flood zones requires elevation certificates and may need to be elevated above the Base Flood Elevation (BFE). Flood insurance is required by federally-backed mortgage lenders for properties in SFHA zones. The city participates in the Community Rating System (CRS) which may qualify residents for flood insurance discounts.
Building in a flood zone without proper permits and elevation compliance: building code violation with stop-work orders. Filling or altering floodways without FEMA approval violates federal law. Non-compliant structures may not be eligible for flood insurance or federal disaster assistance. Fines for floodplain violations range from $500-$10,000 per violation.
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Side-by-side rule comparisons with other cities in Ventura County.
See how other cities in Ventura County handle flood zones.
See how Thousand Oaks's flood zones rules stack up against other locations.
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