Light Trespass: Concord vs Richmond
How do light trespass rules compare between Concord, CA and Richmond, CA?
Concord and Richmond 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 →Richmond, CA
Contra Costa County
Richmond prohibits light glare and spillover that creates a nuisance to neighboring properties, typically limiting illumination at residential property lines to 0.5 foot-candles measured at ground level.
View full Richmond rules →Key Facts Comparison
| Fact | Concord | Richmond |
|---|---|---|
| - | - |
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.
Richmond FAQ
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