Light Trespass: Martinez vs Pittsburg

Martinez regulates exterior residential lighting to prevent glare, light trespass, and excessive illumination onto neighboring properties. Exterior fixtures should be shielded and directed downward; overly bright security lighting or unshielded floodlights that spill onto adjacent lots may constitute a nuisance subject to code enforcement.

Pittsburg prohibits light spillover and glare onto neighboring properties under Municipal Code Title 18. Outdoor fixtures must be shielded to contain light within the originating property. Measurable light trespass is enforced as a nuisance, with foot-candle limits at property lines typically 0.5 fc or less for residential zones.