Dark Sky Rules: Concord vs Walnut Creek
How do dark sky rules rules compare between Concord, CA and Walnut Creek, CA?
Concord and Walnut Creek have similar restriction levels.
Concord, CA
Contra Costa County
Concord does not have a formal dark-sky ordinance but CMC Title 18 requires exterior lighting to be shielded, downcast, and not spill onto neighboring properties. New development must submit a photometric plan demonstrating zero foot-candle spillover at property lines.
View full Concord rules →Walnut Creek, CA
Contra Costa County
Walnut Creek regulates outdoor lighting through its zoning code to minimize light pollution and glare on neighboring properties. While not a formal Dark Sky community, the city requires shielded fixtures for commercial properties and limits lighting intensity and hours.
View full Walnut Creek rules →Key Facts Comparison
| Fact | Concord | Walnut Creek |
|---|---|---|
| - | - |
Highlighted rows indicate differences between cities.
Concord FAQ
Can I install floodlights on my Concord home?
Yes, but they must be aimed downward, shielded, and not cast light onto neighboring properties. Motion-activation is encouraged to minimize dusk-to-dawn operation.
Does Concord regulate LED color temperature?
For new commercial and multifamily projects near residential areas, lighting should not exceed 3000K. Residential light choices are not strictly regulated but shielding rules apply.
What about stadium lights at schools?
Sports and field lighting must comply with curfew requirements (off within 1 hour of event end) and include shielding to minimize spillover to neighboring residential uses.
Walnut Creek FAQ
Compare other topics
See how Concord and Walnut Creek compare on other ordinance categories.
Want to add a third city?
Use our full comparison tool to compare up to three cities.
Open Comparison Tool