Cupertino, CA Environmental Rules: Flood Zones (2026)
FEMA flood zone rules in Cupertino, 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
- before any construction/development in flood hazard areas
- Floodplain Administrator
- City Engineer (§ 16.52.020)
- Governing FIS
- Santa Clara County study dated May 18, 2009
- Appeal body
- Planning Commission (§ 16.52.030)
- Violation
- misdemeanor under § 16.52.013
Summary
A development permit is required before any construction, grading, or placement of manufactured homes within Cupertino's mapped areas of special flood hazard. Municipal Code § 16.52.022 requires engineered plans showing elevations, floodway location, and utility layouts, reviewed by the City Engineer acting as Floodplain Administrator.
16.52.022 Development Permit. A development permit shall be obtained before any construction or other development, including placement of prefabricated buildings and manufactured homes, within any area of special flood hazard established in 16.52.012. Application for a development permit shall be made on forms furnished by the City of Cupertino. The applicant shall provide the following minimum information: Plans, drawn to scale, showing: Location, dimensions, and elevation of the area in question, existing or proposed structures, storage of materials and equipment and their location; Proposed locations of water supply, sanitary sewer, storm drainage and other utilities; Grading information showing existing and proposed contours, any proposed fill, and drainage facilities; Location of the regulatory floodway when applicable;
Full Breakdown
012). 022 requires a development permit before any construction or other development, including prefabricated buildings and manufactured homes, in those mapped areas. Applicants must submit scaled plans showing the location, dimensions, and elevation of existing or proposed structures, the location of water, sewer, storm drainage, and other utilities, grading and drainage information, the location of any regulatory floodway, base flood elevation data, and the proposed elevation of the lowest floor. Nonresidential projects must also show the proposed floodproofing elevation and provide a registered civil engineer's or architect's certification that floodproofing criteria are met.
020, reviews every permit to confirm site safety, confirm other state and federal permits are obtained, and confirm the project will not raise the base flood elevation more than one foot anywhere in the county. The Floodplain Administrator also requires a recorded non-conversion agreement before allowing enclosed space below the base flood elevation, so it cannot later be finished as habitable space without complying with the floodplain ordinance then in effect. 030, and unresolved appeals move to the City Council.
Violations & Fines
Constructing, locating, extending, converting, or altering a structure or land without complying with Chapter 16.52, including without the required development permit, is a misdemeanor under § 16.52.013. The city may also pursue any other lawful remedial action to stop or correct the violation, and § 1.12.020's separate-offense rule applies each day the noncompliant condition continues.
Frequently Asked Questions
Do I need a permit to build in a Cupertino flood zone?
Who reviews flood zone development permits in Cupertino?
What information does a Cupertino flood permit application need?
What happens if I build in a flood zone without a permit?
Sources & Official References
Other rules in Cupertino
California rules heatmap·Compare Cupertino to another location·View the California environmental rules overview
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Flood Zones in Nearby Cities
How other cities in Santa Clara County handle flood zones.