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Colusa County · Building on your lot

Sheds, garages and other accessory structures in Colusa County

Any structure, accessory ones included, is limited to 30 ft in the R-R, R-1 and R-2 zones. Accessory structures need a 5 ft rear setback, and detached accessory buildings must be at least 5 feet from any building.

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Key points

  • Building height: Any structure, accessory ones included, is limited to 30 ft in the R-R, R-1 and R-2 zones.
  • Accessory setbacks: Accessory structures need a 5 ft rear setback, and detached accessory buildings must be at least 5 feet from any building.

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

What Colusa County's code says

Colusa County code What Colusa County's code adds
Maximum height
  • Structures may be 30 ft high at most.
    Applies: The limit applies to every structure in the R-R, R-1 and R-2 zones; the table sets no separate accessory height.
    § 44-2.30.20 · code text
    | Maximum Structure Height | Maximum Structure Height | 30 ft | 30 ft | 30 ft | 40 ft | 40 ft |
Side and rear setback
  • Accessory structures must be at least 5 ft from the rear line and the front-half interior side line.
    Applies: Applies in residential zones; a detached accessory building must also be 5 ft from any building.
    § 44-2.30.20 · code text
    | Minimum Setbacks Accessory Structure [1] | Rear | 5 ft | 5 ft | 5 ft | 5 ft | 5 ft |
  • Accessory structures must be at least 3 ft from the interior side line.
    Applies: Applies in residential zones, in the rear half of the lot.
    § 44-2.30.20 · code text
    | Minimum Setbacks Accessory Structure [1] | Interior Side | 5 ft [2] 3 ft [3] | 5 ft [2] 3 ft [3] | 5 ft [2] 3 ft [3] | 5 ft [2] 3 ft [3] | 5 ft [2] 3 ft [3] |
Distance from the house
  • At least 5 feet from any building.
    Applies: Detached accessory buildings.
    § 44-2.30.20 · code text
    Detached accessory buildings must be 5 feet from any building.

Who this affects

HomeownersContractorsDesigners

Frequently asked questions

How big can a shed or accessory building be in Colusa County?

Any structure, accessory ones included, is limited to 30 ft in the R-R, R-1 and R-2 zones. Accessory structures need a 5 ft rear setback, and detached accessory buildings must be at least 5 feet from any building.

General information, not legal advice.

Ask about a specific Colusa County property

Ask GoCodebook how Colusa County's sheds, garages and other accessory structures rules apply to your situation and get an answer that cites the section.

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