San Bernardino County Code Ch. 83.06 limits fences to 3.5 feet in front yards and 6 feet in side and rear yards. Corner sight triangles limit height to 3 feet within 25 feet of intersections.
San Bernardino County Development Code Chapter 83.06 (Fences, Walls, and Screening) establishes maximum fence heights based on zone and location. In residential zones, fences within the required front yard setback are limited to 3.5 feet, while side and rear yard fences may be up to 6 feet. Fences over 6 feet require a building permit and may be allowed up to 8 feet in commercial and industrial zones. Agricultural zones (AG, RC, RL) allow perimeter fencing up to 8 feet for livestock containment. On corner lots, a clear sight triangle must be maintained, typically restricting fence and vegetation height to 3 feet within 25 feet of the street intersection to preserve visibility. Barbed wire and razor wire are prohibited in residential zones but allowed in agricultural, commercial, and industrial zones above 6 feet. Electrified fencing is generally prohibited in residential areas. All fences must be placed within the property line unless both adjoining owners consent.
Fences exceeding allowed heights, blocking sight triangles, or using prohibited materials can be cited. Administrative citations start at 100 dollars for first violations and escalate to 500 dollars for repeat offenses. Property owners may be required to lower or remove non-compliant fencing.
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