Shed Rules: Fontana vs Rialto
How do shed rules rules compare between Fontana, CA and Rialto, CA?
Fontana has fewer restrictions than Rialto.
Fontana, CA
San Bernardino County
In Fontana, sheds under 120 sq ft, 1 story, and 12 ft tall need no building permit per the CRC. Zoning setbacks still apply, and larger sheds or any utilities trigger a permit.
View full Fontana rules →Rialto, CA
San Bernardino County
Detached accessory structures including sheds are regulated under Rialto Municipal Code Title 18 (Zoning), Chapter 18.06 (Zone Regulations). Sheds 120 square feet or smaller are exempt from a building permit under the California Building Code (CBC) as adopted by Rialto Municipal Code Title 15, but still must comply with zoning setbacks, height, and lot-coverage rules.
View full Rialto rules →Key Facts Comparison
| Fact | Fontana | Rialto |
|---|---|---|
| Permit exemption | Under 120 sq ft, 1 story, 12 ft height, no utilities | - |
| Zoning setbacks | Typically 3 to 5 feet side and rear yard | - |
| Coverage limit | Accessory structures often capped near 30 percent rear yard | - |
| Utilities trigger permit | Electrical, plumbing, or HVAC requires building permit | - |
| Front-yard ban | Sheds generally not allowed in front-yard setback | - |
| Permit threshold | - | 120 sf or less exempt under CBC §105.2 (Title 15 adoption) |
| Setbacks | - | Per zoning district in RMC Ch. 18.06 |
| Enforcement | - | Rialto Community Compliance |
| Airport overlay | - | Height limits near Rialto Municipal Airport |
Highlighted rows indicate differences between cities.
Fontana FAQ
Do I need a permit for a 10 by 10 shed in Fontana?
A 10 by 10 shed is 100 square feet - under the 120 square foot CRC exemption, so no building permit is needed as long as there is no power or plumbing.
How close to my fence can I put a shed?
Fontana zoning typically requires at least 3 to 5 feet from side and rear property lines, even for permit-exempt sheds.
Can I run an outlet to my shed?
Adding electrical service requires a permit from Fontana Building and Safety and a licensed electrician for any hardwired circuits.
Rialto FAQ
Do I need a permit for a small backyard shed in Rialto?
No building permit is needed for a detached shed 120 sf or smaller, but you still must meet RMC Chapter 18.06 setbacks and lot-coverage rules. Anything larger or any shed with electrical/plumbing needs a permit from Building & Safety.
Can my shed sit on the property line?
No. Rialto Municipal Code Chapter 18.06 sets minimum side and rear yard setbacks by zoning district. Check your zone before placing a shed.
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