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

The City of Orange regulates fence heights under OMC Title 17 (Zoning). Front yard fences are limited to 3.5 feet, side and rear yard fences to 6 feet, with 8-foot fences allowed where property abuts a major arterial street or commercial zone.

Shared boundary fences in Orange are governed by California Civil Code Section 841, which generally requires adjoining property owners to share equally in the costs of maintaining a boundary fence. The city's zoning code in OMC Title 17 sets height and material standards.

Most residential fences in Orange do not require a building permit if they comply with height limits under OMC Title 17. Fences over 6 feet, retaining walls over 4 feet, or fences with structural components may require permits from the Building Division.

Pool barriers in Orange must be at least 5 feet high with self-closing, self-latching gates per California Building Code Section 3109 and Orange County Ordinance 19-006. A secondary pool barrier is also required.

Retaining walls in Orange exceeding 4 feet in height require a building permit and engineered plans under OMC Title 15 and the California Building Code. All retaining walls must comply with zoning setback requirements.

Above-ground pools in Orange are subject to the same barrier and safety requirements as in-ground pools under California Building Code Section 3109. Pools capable of holding 24 inches or more of water require safety barriers and may require a building permit.

Pools and spas in Orange must be enclosed by a fence or wall at least 5 feet high with self-closing, self-latching gates per California Building Code Section 3109 and Orange County Ordinance 19-006. A secondary barrier is also mandatory.

Hot tubs and spas in Orange are subject to the same barrier and safety requirements as swimming pools under California Building Code Section 3109. A building permit is generally required for permanent spa installation.

Swimming pool construction in Orange requires a building permit from the Community Development Department. Plans must show barrier compliance, drainage, setbacks, and structural engineering per the California Building Code.

Pool safety in Orange is governed by the California Swimming Pool Safety Act (H&S Code §115920-115929), CBC Section 3109, and OC Ordinance 19-006. Requirements include barriers, drain covers, and secondary safety features to prevent drowning.

The City of Orange regulates accessory dwelling units under OMC Chapter 17.29, consistent with California Government Code Section 65852.2. Detached ADUs up to 850 sq ft (one bedroom) or 1,000 sq ft (two+ bedrooms) are permitted on single-family lots via ministerial building permit.

Garage conversions in Orange are permitted under the ADU framework in OMC Chapter 17.29, consistent with California state ADU law. Converting an existing garage to an ADU is exempt from replacement parking requirements and standard setback requirements.

Carports in Orange are regulated as accessory structures under OMC Title 17 (Zoning). Attached carports must maintain the same setbacks as the primary structure. A building permit is required for all carport construction.

Sheds and accessory structures in Orange are regulated under OMC Title 17 residential district standards. Small detached structures under 120 square feet typically do not require a building permit but must comply with zoning setbacks and height limits.

Tiny homes in Orange are regulated through the ADU framework under OMC Chapter 17.29 and California Government Code Section 65852.2. Tiny homes on permanent foundations meeting building code qualify as ADUs. Tiny homes on wheels are not permitted as permanent residences.

Orange allows gas-fueled fire pits with Building Division approval. Wood-burning fire pits must be at least 15 feet from combustible structures and have spark arrestors. SCAQMD Check Before You Burn restrictions apply.

Open burning is prohibited within the City of Orange under the California Fire Code and South Coast Air Quality Management District Rule 444. Gas-fueled fire features approved by the Building Division are allowed. Wood-burning fires are restricted.

The City of Orange prohibits landscape irrigation between 9:00 AM and 5:00 PM and limits watering to 15 minutes per station per day under the city's water conservation ordinance. Additional restrictions may apply during drought conditions.

The City of Orange regulates tree removal through OMC Chapter 12.32 (Tree Preservation) and Chapter 12.28 (Street Trees). Removing trees from undeveloped or public interest property requires a permit. Historical trees receive special protection.

Tree trimming in Orange is regulated under OMC Chapter 12.28 for street trees and general property maintenance provisions for private property. Trimming street trees requires a permit from Public Works.