Siskiyou County · Building on your lot
Building on your lot in Siskiyou County
Siskiyou County's code applies only in unincorporated areas of the county. There it sets height and setback limits for accessory structures by district, limits home businesses and reviews rooftop solar administratively.
Key points
- Accessory height: Accessory structures are limited to 20 feet in Res districts and on R-R lots under 1 acre; 30 feet on larger R-R lots.
- Accessory setbacks: Accessory structures need 5-foot side yards, except on the rear half of Res lots, where the setback from interior lines is 1 foot.
- Home businesses: Home businesses may use at most 25% of the home's square footage, including storage, with no employees and an administrative use permit.
- Rooftop solar: Siskiyou County issues rooftop solar permits administratively when a complete application meets the approved checklist and standard plan.
- Bees: Keeping Africanized honey bees is not allowed in unincorporated Siskiyou County.
Each rule below is marked Siskiyou County code or CA state law and links to the section it comes from (checked October 2026). General information, not legal advice.
Siskiyou County's code applies in the unincorporated areas of the county. Cities in Siskiyou County have their own codes and their own pages.
Sheds, garages and other accessory structures
Siskiyou County code Accessory structures are limited to 20 feet in Res districts and on R-R lots under 1 acre; 30 feet on larger R-R lots. Accessory structures need 5-foot side yards, except on the rear half of Res lots, where the setback from interior lines is 1 foot.
All 15 Siskiyou County rules on sheds, garages and other accessory structures, with the code text →
Running a business from home
Siskiyou County code Home businesses may use at most 25% of the home's square footage, including storage, with no employees and an administrative use permit.
All 5 Siskiyou County rules on running a business from home, with the code text →
Solar panels and EV chargers
| EV charger permit |
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|---|---|
| Solar permit process |
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Pets, chickens and bees
| Bees |
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|---|
Family child care homes
| Zoning | A small or large family child care home is a residential use and a use by right under all local ordinances, including zoning |
|---|---|
| Business license or fee | A city or county may not charge a business license, fee or tax to run a family child care home |
| Local rules | Local limits on height, setbacks, lot size, health and safety must be the same as for every other home in the same zone |
| Small home | Up to eight children, counting the provider's own children under 10 who live there |
| Large home | 7 to 14 children, counting the provider's own children under 10 who live there |
Signs on homes
Siskiyou County code Political signs up to 32 square feet; remove within 15 days after the election. Temporary political, real estate, garage sale, yard sale and similar signs are allowed without a sign permit.
All 7 Siskiyou County rules on signs on homes, with the code text →
Other Siskiyou County rules on this
Siskiyou County's code also has these chapters. We have not summarized their values on this page yet; read them in the library.
- Accessory buildings on sites less than one acre (§ 10-6.1512)
- Building in a flood hazard area (Title 10, Ch. 10)
Who this affects
Frequently asked questions
Do I need a permit for solar panels or an EV charger in Siskiyou County?
Siskiyou County issues rooftop solar permits administratively when a complete application meets the approved checklist and standard plan.
Can I keep chickens or bees at my home in Siskiyou County?
Keeping Africanized honey bees is not allowed in unincorporated Siskiyou County.
Can I run a family child care home in Siskiyou County?
California law sets this for every city, including Siskiyou County: Zoning: A small or large family child care home is a residential use and a use by right under all local ordinances, including zoning (Health & Safety Code § 1597.45(a)); Business license or fee: A city or county may not charge a business license, fee or tax to run a family child care home (Health & Safety Code § 1597.45(b)); Local rules: Local limits on height, setbacks, lot size, health and safety must be the same as for every other home in the same zone (Health & Safety Code § 1597.45(e)); Small home: Up to eight children, counting the provider's own children under 10 who live there (Health & Safety Code § 1596.78(c)); Large home: 7 to 14 children, counting the provider's own children under 10 who live there (Health & Safety Code § 1596.78(b)).
General information, not legal advice.
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