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

Shared fences between neighbors in Irvine are subject to California Civil Code Section 841 (Good Neighbor Fence Act) for cost-sharing and the Irvine Zoning Ordinance for height and material requirements.

Irvine limits residential fences to a maximum of 7 feet in side and rear yards and 2.5 feet in front setback areas under the Irvine Zoning Ordinance. Fences over 7 feet in required setback areas need Administrative Relief approval.

Fences not over 7 feet high (excluding pool barriers) are exempt from building permits in Irvine, but must still comply with Zoning Ordinance height and material restrictions. Fences over 7 feet require Administrative Relief and a building permit.

Irvine requires pool protection fences for all residential pools and spas under IMC Section 5-9-304 and the California Swimming Pool Safety Act. Fences must be maintained in good condition with self-closing, self-latching gates.

Retaining walls in Irvine not exceeding 4 feet in height from footing to top are exempt from building permits unless supporting a surcharge. Taller walls require engineering plans and a building permit.

Swimming pool construction in Irvine requires building, electrical, and plumbing permits. Plans must show pool location, setbacks, barrier systems, and equipment. Inspections are conducted at multiple construction stages.

Irvine requires all residential pools and spas to have protection fences per IMC Section 5-9-304 and the California Swimming Pool Safety Act. Gates must be self-closing and self-latching with latch mechanisms at least 5 feet above grade.

Hot tubs and spas in Irvine require building and electrical permits. They must comply with IMC Section 5-9-304 pool protection fence requirements and the California Swimming Pool Safety Act if holding 18 inches or more of water.

Prefabricated above-ground pools under 24 inches deep and under 5,000 gallons are generally exempt from building permits in Irvine. Larger above-ground pools require permits and must comply with pool barrier and safety requirements.

Irvine enforces comprehensive pool safety under IMC Section 5-9-304 and the California Swimming Pool Safety Act. All pools require protection fences, anti-entrapment devices, GFCI protection, and at least two safety features from the state-mandated list.

Irvine regulates accessory dwelling units under its Zoning Ordinance consistent with California Government Code Section 65852.2. ADUs are approved ministerially through a building permit on single-family lots, with detached units up to 1,200 square feet permitted by right.

Garage conversions to ADUs in Irvine are permitted by right under California Government Code Section 65852.2 with no replacement parking required. Non-ADU conversions must maintain the required off-street parking for the zoning district.

Carports in Irvine are regulated as accessory structures under the Irvine Zoning Ordinance. A building permit is required for carport construction. Carports must comply with setback, height, and lot coverage requirements for the applicable zoning district.

Storage sheds in Irvine not exceeding 120 square feet in floor area are generally exempt from building permits under the California Building Code. Larger sheds require a building permit and must comply with Irvine Zoning Ordinance setback and coverage requirements.

Tiny homes in Irvine are regulated through the ADU framework per California Government Code Section 65852.2. Tiny homes on permanent foundations meeting CBC standards qualify as ADUs. Tiny homes on wheels cannot serve as permanent residences.

Gas fire pits and fireplaces are allowed in Irvine with Building Department approval under OCFA standards. Wood-burning devices face strict setback requirements and are banned in wildfire risk areas and fire hazard severity zones. Building permits are required for installation.

Open burning is prohibited in Irvine under IMC Title 4, Division 4 and SCAQMD Rule 444. Recreational fires in approved fire pits are permitted with conditions. All outdoor fires are prohibited during SCAQMD no-burn days and hazardous weather.

Irvine enforces water conservation restrictions consistent with state regulations and the Irvine Ranch Water District. Outdoor irrigation is prohibited between 9 AM and 5 PM. Watering within 48 hours of measurable rainfall is not permitted.

Irvine regulates tree removal under IMC Title 5, Division 7, Chapter 4 (Urban Forest). Street trees and trees in public rights-of-way require city authorization for removal. Private property tree removal generally does not require a permit unless subject to development conditions.

Tree trimming on public property in Irvine requires authorization from Public Works under IMC Title 5, Division 7. Private property tree trimming is generally unrestricted. Property owners must maintain trees to prevent obstruction of public rights-of-way.