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Building in a flood zone in Roseville

Roseville's own rules on building in a flood zone, with the code text for every value.

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Each rule below links to the section of the Roseville Municipal Code it was read from, with the code text one click away (checked October 2026). General information, not legal advice.

What Roseville's code says

Roseville code What Roseville's code adds
Floodplain permit
  • A development permit is needed before any construction or development in a special flood hazard or flood-erosion hazard area.
    § 9.80.120 · code text
    A development permit shall be obtained before any construction or other development begins within any area of special flood hazard or areas of flood-related erosion hazard.
Building in a floodway
  • No fill, new building, substantial improvement or other new development unless an engineer certifies no rise in flood levels.
    Applies: Areas designated as floodways.
    § 9.80.210 · code text
    Prohibit encroachments, including fill, new construction, substantial improvement, and other new development unless certification by a registered professional engineer that the encroachments shall not result in any increase in flood levels during the occurrence of the base flood discharge.
Height of the lowest floor
  • The lowest floor, including a basement, must be at least 2 feet above the base flood elevation (BFE).
    Applies: New or substantially improved homes.
    § 9.80.160 · code text
    Residential construction, either new or substantial improvement, shall have the lowest floor, including basement, elevated at least two feet above the base flood elevation (BFE).

Who this affects

HomeownersContractorsDesigners

Frequently asked questions

What are the rules for building in a Roseville flood zone?

Roseville's code: A development permit is needed before any construction or development in a special flood hazard or flood-erosion hazard area. (§ 9.80.120); The lowest floor, including a basement, must be at least 2 feet above the base flood elevation (BFE). (New or substantially improved homes.) (§ 9.80.160).

General information, not legal advice.

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Ask GoCodebook how Roseville's building in a flood zone rules apply to your situation and get an answer that cites the section.

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