San Ramon, CA Fence Regulations: Neighbor Fence Rules (2026)

Hedges and dense vegetation used as visual barriers in San Ramon are treated similarly to fences for land use regulation purposes. 5 feet (42 inches) in height within the required front yard setback to preserve neighborhood openness and driver visibility. Corner lot sight triangles apply: within 15 feet of intersections measured along each street frontage, hedge and fence height is limited to 3 feet to preserve intersection visibility. 4 (spite fence statute, which courts have extended to vegetation). Hedges that encroach onto a neighbor's property may be trimmed by the neighbor back to the property line under common law self-help rules, but the trimmer must not damage or kill the hedge, doing so can create liability.

California Civil Code §714 (Solar Rights Act) preserves existing solar access, a hedge that significantly shades a neighbor's installed solar system may be required to be maintained at a height that preserves solar function. Heritage tree rules in San Ramon may protect mature oaks and other designated species even if used as hedging, removal or significant pruning of protected trees requires a permit. HOA CC&Rs in Dougherty Valley, Canyon Lakes, and master-planned communities frequently set maximum hedge heights and required setbacks, often stricter than city rules.

Enforcement: city Code Enforcement handles front yard sight-line violations and corner lot triangles; disputes over shared hedges or overgrowth onto neighboring property are civil matters. Fire-fuel considerations: under California PRC §4291 (defensible space), hedges within 30 feet of structures in fire hazard areas (San Ramon's western hill edge abutting Las Trampas Wilderness) may require management. Landscape overgrowth creating a public nuisance under Health & Safety Code §14875 can trigger abatement orders.