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Shasta County · Building on your lot

Sheds, garages and other accessory structures in Shasta County

With a legal residence, all accessory structures may total 2,500 sq ft, with listed exclusions; without one, 1,000 sq ft.

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Key points

  • Accessory size: With a legal residence, all accessory structures may total 2,500 sq ft, with listed exclusions; without one, 1,000 sq ft.

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

What Shasta County's code says

Shasta County code What Shasta County's code adds
Size or lot coverage
  • All accessory structures together can be at most 2,500 square feet, unless an administrative permit is approved.
    Applies: With a legal home. Not counting 600 square feet of attached garage, or up to 2 detached structures under 120 square feet each.
    § 17.88.140 · code text
    On property with a legally established residence, the combined total floor area of all such accessory structures, attached and detached, does not exceed two thousand five hundred square feet excluding six hundred square feet of garage space when attached to and part of the residence, and excluding up to two legal detached structures less than one hundred twenty square feet of floor area each, unless an administrative permit is first approved.
  • All accessory structures together can be at most 1,000 square feet.
    Applies: On property with no legal home, counting structures under 120 square feet.
    § 17.88.140 · code text
    The combined total floor area of all accessory structures, including structures less than one hundred twenty square feet, shall not exceed one thousand square feet.
  • May be more than 1,000 square feet, up to the 2,500-square-foot limit and its permit rules.
    Applies: When a legal home is built at the same time and all home permits are approved.
    § 17.88.140 · code text
    If a legal residence will be constructed concurrently on the property and all required permits for the residence have been approved, the combined total floor area of all accessory structures may exceed one thousand square feet, subject to the permitting requirements and size limitations of subsection B.2.a of this section

Who this affects

HomeownersContractorsDesigners

Frequently asked questions

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

With a legal residence, all accessory structures may total 2,500 sq ft, with listed exclusions; without one, 1,000 sq ft.

General information, not legal advice.

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Shasta County Municipal Code — full text