Shed Rules: Petaluma vs Rohnert Park
How do shed rules rules compare between Petaluma, CA and Rohnert Park, CA?
Petaluma has fewer restrictions than Rohnert Park.
Petaluma, CA
Sonoma County
Per California Building Code Section 105.2 (adopted in Sonoma County Code Chapter 7), one-story detached storage sheds with a floor area of 120 square feet or less are exempt from a building permit, but zoning setbacks and the Permit Sonoma accessory structure rules still apply.
View full Petaluma rules →Rohnert Park, CA
Sonoma County
Rohnert Park's Zoning Code Title 17 (Chapters 17.06 and 17.10) regulates accessory structures including sheds. One-story detached accessory structures (tool/storage sheds, playhouses) up to 120 sq ft are exempt from a building permit per the California Building Code, but must still comply with the underlying residential zoning district's setback and height standards. The Development Services Department reviews larger sheds and any structure with electrical or plumbing.
View full Rohnert Park rules →Key Facts Comparison
| Fact | Petaluma | Rohnert Park |
|---|---|---|
| Permit-Exempt Size | ≤ 120 sq ft | ≤120 sq ft, one story |
| Max Accessory Structure Size | 3,000 sq ft | - |
| Max Height | Two stories | - |
| Storage Building Electrical | ≤ 40 amp sub-panel | - |
| Code Reference | Chapter 7; Policy 1-4-6 | RPMC Title 17 (Ch. 17.06, 17.10) |
| Typical Side/Rear Setback | - | 5 ft (verify zone) |
| Contact | - | Planning 707-588-2231 |
Highlighted rows indicate differences between cities.
Petaluma FAQ
Do I need a permit for a small garden shed?
No building permit is required if the shed is one story, has no more than 120 square feet of floor area, and has no electrical, plumbing, or mechanical work. Zoning setbacks still apply regardless of size.
What's the largest shed I can build on a residential lot?
Sonoma County's accessory-structure definition caps detached residential accessory structures at 3,000 square feet and two stories. Larger structures generally require classification as something other than residential accessory.
Can I run electricity to my shed?
A storage building classified as Group U may have no more than a 40-amp electrical sub-panel and no waste plumbing per Permit Sonoma Policy 1-4-6. Any electrical work itself requires an electrical permit.
Rohnert Park FAQ
Do I need a permit for a shed in Rohnert Park?
Not for a one-story tool/storage shed up to 120 sq ft with no electrical or plumbing (California Building Code exemption). Larger sheds or any with utilities require a building permit. The shed must still meet the zoning district's setbacks.
Where can I put a shed on my Rohnert Park property?
Accessory structures must be in the rear or interior side yard, subordinate to the main house. Verify your specific setbacks with Rohnert Park Development Services at 707-588-2231 — typical residential zones require 5 ft from interior property lines.
Compare other topics
See how Petaluma and Rohnert Park compare on other ordinance categories.
Want to add a third city?
Use our full comparison tool to compare up to three cities.
Open Comparison Tool