Light Trespass: Antioch vs San Ramon

Antioch regulates glare and light spillover onto adjacent properties under AMC Title 9 development standards and nuisance provisions. Light trespass exceeding 0.1-0.5 footcandles at residential property lines may be cited.

San Ramon Development Code limits light glare and spillover from private lighting onto neighboring properties and public rights-of-way. Typical standards require illumination at property lines not to exceed 0.5–1.0 foot-candles for residential-adjacent properties, with full-cutoff fixtures required to prevent direct view of light sources from off-site. Violations are handled through code enforcement and may also give rise to civil nuisance claims. Security lighting is allowed but must be shielded and ideally motion-activated.