Light Trespass: Oakley vs Pittsburg
How do light trespass rules compare between Oakley, CA and Pittsburg, CA?
Oakley and Pittsburg have similar restriction levels.
Oakley, CA
Contra Costa County
Oakley encourages dark-sky-friendly lighting practices consistent with California Title 24 and regional dark-sky initiatives. Upward-directed lighting and excessive illumination are discouraged. Commercial signage lighting is restricted after business hours, and new development is reviewed for compliance with sky-glow reduction principles.
View full Oakley rules →Pittsburg, CA
Contra Costa County
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.
View full Pittsburg rules →Key Facts Comparison
| Fact | Oakley | Pittsburg |
|---|---|---|
| Fact | Full-cutoff fixtures and downward throw required | - |
| - | - |
Highlighted rows indicate differences between cities.
Oakley FAQ
Can I point a spotlight up at my house?
Upward-directed lighting is discouraged. Narrowly shielded architectural accent lighting may be permitted if properly aimed and low-lumen.
Must commercial signs turn off at night?
Yes, typically within one hour of close of business. Internally illuminated signs and externally lit signs are both affected.
Is light pollution legally a nuisance?
Unreasonable light trespass from a neighboring property can constitute a private nuisance under Civil Code §3479, in addition to any code violation.
Pittsburg FAQ
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