Fullerton, CA Fence Regulations: Permit Requirements (2026)

Fullerton follows the California Building Code as adopted in Municipal Code Chapter 15.10 for fence permit requirements. Under CBC Section 105.2, fences that do not exceed 7 feet in height generally do not require a building permit. However, Fullerton's zoning code (Chapter 15.50) imposes height limits (42 inches front, 6 feet side/rear) that must be met regardless of building permit exemptions. Retaining walls not exceeding 4 feet in height measured from the bottom of the footing to the top of the wall are typically exempt from building permits, but retaining walls over 4 feet require a building permit with engineered plans. Any fence or wall that requires a variance or exceeds zoning height limits requires approval from the Community Development Department. Fences in or near the public right-of-way or within easements may require an encroachment permit. Pool barrier fencing must meet specific safety requirements under Chapter 31 of the California Building Code and typically requires a separate pool barrier permit and inspection. When a fence is part of a larger construction project, it is reviewed as part of that project's building permit. The Planning Division reviews fence materials and design in certain zones or for properties with specific conditions of approval. While many residential fences may be exempt from a building permit, they must always comply with the zoning code and setback requirements.