Dark Sky Rules: Moorpark vs Simi Valley

Does Moorpark have dark sky lighting rules?

Yes. Chapter 17.30 regulates outdoor lighting to protect astronomical resources and prevent nuisance impacts. Light fixtures must be properly shielded and not create trespass onto neighboring properties.

Do I need a lighting plan for new construction in Moorpark?

Yes. New development projects must include photometric plans demonstrating compliance with Chapter 17.30, showing light levels, fixture locations, and shielding to prevent light trespass.

Can my neighbor's lights shine into my yard in Moorpark?

No. Chapter 17.30 requires outdoor lighting to be properly aimed and shielded to prevent light trespass onto adjacent properties. File a complaint with Code Compliance at (805) 517-6232 if affected.

Are there limits on outdoor lighting in Simi Valley?

Yes, exterior lighting must be shielded and directed downward. Light may not trespass onto neighboring properties above 0.5 foot-candles at the property line.

Can my neighbor's security light shine into my yard?

No, security lights must be shielded and directed to avoid illuminating neighboring properties. File a complaint with Code Enforcement at (805) 583-6238 if lights trespass.

What type of outdoor lights are recommended?

Full cutoff, downward-directed fixtures are recommended. LED and warm-color temperature lights minimize glare and sky glow. Avoid unshielded flood lights and mercury vapor fixtures.