Moorpark, CA Environmental Rules: Flood Elevation Requirements (2026)
Key Facts
- Freeboard
- 2 ft above base flood elevation
- AO zones
- FIRM depth number, or 2 ft minimum
- Certification
- licensed engineer or surveyor
- Governing section
- § 15.24.160(C)
Summary
New and substantially improved residential structures in Moorpark's flood zones must have the lowest floor at least two feet above the base flood elevation, certified by a licensed engineer or surveyor.
Residential construction, new or substantial improvement shall have the lowest floor, including basement:
a. In an AO zone, elevated above the highest adjacent grade to a height equal to or exceeding the depth number specified in feet on the FIRM, or elevated at least two feet above the highest adjacent grade if no depth number is specified. In AO zones without velocity the lowest floor shall be elevated above the highest adjacent grade to a height exceeding the depth number specified in feet on the FIRM by at least two feet, or elevated at least four feet above the highest adjacent grade if no depth number is specified.
b. In an A zone, elevated to at least two feet above the base flood elevation; said base flood elevation shall be determined by one of the methods in Section 15.24.140(B) of this chapter.
c. In all other zones, elevated to at least two feet above the base flood elevation. Upon the completion of the structure, the elevation of the lowest floor including basement shall be certified by a registered professional engineer or surveyor, and verified by the building official to be properly elevated. Such certification and verification shall be provided to the floodplain administrator.
2. Nonresidential construction new or substantial improvement shall either be elevated to conform with Section 15.24.160(C)(1) or together with attendant utility and sanitary facilities:
a.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: rev 4978490; v10 updated 2026-07-01).
Full Breakdown
Moorpark's construction-standards section sets a two-foot freeboard above the FEMA base flood elevation for residential lowest floors in A zones and all other special flood hazard zones (AO zones instead use the FIRM depth number, or two feet if none is listed). Nonresidential construction may elevate to the same standard or floodproof instead. Completion requires certification of the finished lowest-floor elevation by a registered professional engineer or surveyor, verified by the building official and kept on file with the floodplain administrator.
Violations & Fines
Occupying or completing construction without the required certified elevation documentation is presumed a violation of Chapter 15.24 and can block final approval; unpermitted noncompliant construction is a misdemeanor under § 15.24.080.
Frequently Asked Questions
How high above the base flood elevation must new construction be in Moorpark?
Who certifies the elevation?
Sources & Official References
Other rules in Moorpark
California rules heatmap·Compare Moorpark to another location·View the California environmental rules overview
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Flood Elevation Requirements in Nearby Cities
How other cities in Ventura County handle flood elevation requirements.