Flood Zones: Castaic vs Santa Clarita
How do flood zones rules compare between Castaic, CA and Santa Clarita, CA?
Castaic and Santa Clarita have similar restriction levels.
Castaic, CA
Los Angeles County
LA County Code Title 11, Chapter 11.60 establishes floodway regulations for unincorporated areas. Development within FEMA flood zones requires compliance with NFIP standards. The County Flood Zone Determination website maps all flood hazard areas.
View full Castaic rules →Santa Clarita, CA
Los Angeles County
Santa Clarita has significant FEMA-mapped flood zones, particularly along the Santa Clara River and its tributaries. Development in flood hazard areas is heavily restricted under SCMC Title 15. Buildings, fences, and fill are prohibited in flood zones except as specifically authorized.
View full Santa Clarita rules →Key Facts Comparison
| Fact | Castaic | Santa Clarita |
|---|---|---|
| Code | Title 11, Ch. 11.60 | - |
| Elevation Req. | 1 ft above BFE | - |
| NFIP Participant | Yes | - |
| Flood Lookup | pw.lacounty.gov/floodzone | - |
| Insurance | Required in SFHA | - |
| Code Section | - | SCMC Title 15 |
| Flood Areas | - | Santa Clara River and tributaries |
| NFIP | - | Participating community |
| Restrictions | - | Buildings, fences, fill all restricted |
| ADUs | - | Must comply with flood zone rules |
Highlighted rows indicate differences between cities.
Castaic FAQ
How do I check if my property is in a flood zone in LA County?
Use the LA County Public Works Flood Zone Determination website at pw.lacounty.gov/floodzone. Enter your address to see FEMA flood zones and county floodway maps.
Do I need flood insurance in unincorporated LA County?
If your property is in a FEMA Special Flood Hazard Area (Zone A, AE, etc.), flood insurance is required for federally backed mortgages. LA County's CRS participation may provide premium discounts.
Santa Clarita FAQ
Is my Santa Clarita property in a flood zone?
Check FEMA's Flood Map Service Center or contact Santa Clarita's planning department. Properties near the Santa Clara River and tributary washes are most likely in flood hazard areas.
Can I build a fence in a Santa Clarita flood zone?
Fences in flood hazard areas require permits and must comply with SCMC Title 15 floodplain regulations. Standard fence permit exemptions do not apply in flood zones.
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