Light Trespass: Concord vs Martinez
How do light trespass rules compare between Concord, CA and Martinez, CA?
Concord and Martinez have similar restriction levels.
Concord, CA
Contra Costa County
Concord prohibits light trespass onto neighboring properties under CMC nuisance provisions and the Development Code's outdoor lighting standards. Exterior lighting must be shielded so zero foot-candles reach adjacent residential property lines.
View full Concord rules →Martinez, CA
Contra Costa County
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.
View full Martinez rules →Key Facts Comparison
| Fact | Concord | Martinez |
|---|---|---|
| - | - |
Highlighted rows indicate differences between cities.
Concord FAQ
My neighbor's floodlight shines into my bedroom. What can I do?
Start with a friendly conversation. If unresolved, file a Code Enforcement complaint with the City of Concord. The fixture must be shielded or aimed to eliminate property-line spillover.
Can businesses leave lights on all night?
Parking-lot and sign lighting must comply with curfew requirements in residential-adjacent zones. Security lighting is permitted but must be shielded and downcast.
Are motion sensors required?
Not required, but Concord's Development Code encourages motion-activation and timer controls to minimize dusk-to-dawn light pollution.
Martinez FAQ
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