Before You Build in Fontana, CA: Permit & Rule Checklist (2026)

Retaining walls in Fontana require a building permit once they retain more than 4 feet of soil measured from the bottom of the footing, or at any height if they support a surcharge. Structural plans, drainage design, and geotechnical review are often required.

California Health and Safety Code Section 115920 and the California Building Code require a 60-inch minimum pool barrier with self-closing, self-latching gates, plus at least one additional drowning-prevention feature. Fontana enforces these standards through the building permit and final inspection for any new pool.

Fontana requires a building permit for masonry or solid fences over 42 inches and open fencing over 48 inches. Permits are issued through Building and Safety, with Planning review when zoning or setback questions arise.

Fontana caps side and rear yard fences at 6 feet and front yard fences at roughly 36 to 42 inches. Building permits are required for solid walls over 42 inches and for open fencing over 48 inches. Taller decorative or security fences need Planning approval.

California Civil Code Section 841, the Good Neighbor Fence Act, controls shared boundary fences in Fontana. Adjoining neighbors share costs equally unless one party can show unequal benefit, and 30 days written notice is required before construction.

Hot tubs and spas in Fontana require electrical permits and must meet California Pool Safety Act standards. Locking safety covers meeting ASTM F 1346 can replace perimeter fencing.

California H&S Code 115922 requires residential pools to have an enclosure at least 60 inches tall with self-closing, self-latching gates. Fontana enforces state barrier standards plus CBC code.

Fontana requires building, plumbing, and electrical permits for all in-ground and above-ground pools and spas over 24 inches deep. Permits ensure code-compliant construction and safety.

Above-ground pools in Fontana follow the same permit and safety rules as in-ground pools when water depth exceeds 18 to 24 inches. Ladders must be removable or lockable.

Fontana residential pools must comply with the California Pool Safety Act which requires at least two drowning prevention safety features such as fence, alarm, cover, or self-closing doors.

Fontana permits ADUs and JADUs under California Gov Code 65852.2. Ministerial approval within 60 days, no replacement parking for garage conversions, and detached ADUs up to 1,200 sq ft.

Fontana allows garage conversions with a building permit. ADU conversions under Gov Code 65852.2 need no replacement parking, while non-ADU conversions may require two off-street spaces.

Fontana carports require a building permit with engineered wind and seismic plans. They need 5-foot side/rear setbacks, 20-foot front setback, and cannot be fully enclosed without becoming a garage.

Stationary tiny homes in Fontana permit as ADUs under Gov Code 65852.2 up to 1,200 sq ft. Tiny houses on wheels are treated as RVs and cannot be permanent residences outside an RV park.

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.

Fontana allows residential fire pits under the California Fire Code, but pits must be 10 feet from structures and SCAQMD Rule 445 limits wood burning on winter no-burn days.

Open burning of leaves, yard waste, and trash is banned in Fontana under SCAQMD Rule 444. Only small recreational campfires, grills, and gas fires are allowed, subject to Rule 445 no-burn days.

Fontana has no general heritage-tree law, so homeowners may remove trees on private property without a permit. Parkway and city-owned trees need Public Works approval before removal.

Private trees in Fontana are the owners responsibility, but parkway trees belong to the city and need a Public Works permit. Maintain 14 feet over streets and 8 feet over sidewalks.

Fontana Water Company bans irrigation between 9 a.m. and 6 p.m. and any runoff onto streets. AB 1572 ends non-functional turf irrigation at commercial and HOA sites by 2027.