Santa Monica, CA Environmental Rules: Flood Zones (2026)
FEMA flood zone rules in Santa Monica, CA, also called floodplain regulations or special flood hazard area (SFHA) rules, determine flood insurance requirements and elevation standards for new construction.
Key Facts
- Permit required
- Floodplain development permit before any construction in a special flood hazard area
- Flood zone basis
- FEMA Flood Insurance Rate Maps (FIRMs) for Los Angeles County
- Residential floor requirement
- Lowest floor must be at or above base flood elevation (BFE)
- Penalty
- Misdemeanor for violations
- Floodplain administrator
- City Engineer or designee
- Appeal timeline
- 15 days from permit action to appeal to Director of Public Works
Summary
Any development or construction within Santa Monica's designated special flood hazard areas requires a floodplain development permit before work begins. Violations constitute a misdemeanor.
§ 7.68.130. Floodplain development permit. No person shall develop or erect any structures, including manufactured homes, within any special flood hazard area without first obtaining a floodplain development permit. Application for a development permit shall be made on forms furnished by the City. The applicant shall provide the following minimum information:
(a) Plans in duplicate, drawn to scale, showing:
(1) Location, dimensions, and elevation of the area in question, existing or proposed structures, storage of materials and equipment and their location;
(2) Proposed locations of water supply, sanitary sewer and other utilities;
(3) Grading information showing existing and proposed contours, any proposed fill, and drainage facilities;
(4) Location of the regulatory floodway when applicable;
(5) Base flood elevation information as specified in Sections 7.68.060 or 7.68.120(c);
(6) Proposed elevation in relation to mean sea level, of the lowest floor (including basement) of all structures; and
(7) Proposed elevation in relation to mean sea level to which any nonresidential structure will be floodproofed, as required in Section 7.68.150(c)(2) of this Chapter.
Full Breakdown
The City adopts FEMA's Flood Insurance Rate Maps for Los Angeles County to identify special flood hazard areas. A floodplain development permit application must include scaled plans showing elevations, utility locations, grading details, base flood elevation data, and the proposed lowest floor elevation relative to mean sea level. All new and substantially improved residential structures must have their lowest floors at or above base flood elevation. The City Engineer serves as Floodplain Administrator.
Violations & Fines
Violations of the floodplain regulations, including building without a permit or failing to meet construction standards, constitute a misdemeanor under § 7.68.070. Variances from the base flood elevation requirement will result in significantly higher flood insurance premiums: up to $25 per $100 of coverage.
Frequently Asked Questions
Do I need a permit to add a deck or room addition in a flood zone?
How do I find out if my property is in a flood zone?
What happens if my renovation cost equals 50% or more of the building's market value?
Sources & Official References
Other rules in Santa Monica
California rules heatmap·Compare Santa Monica to another location·View the California environmental rules overview
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Flood Zones in Nearby Cities
How other cities in Los Angeles County handle flood zones.