Dark Sky Rules: Lancaster vs Santa Monica
How do dark sky rules rules compare between Lancaster, CA and Santa Monica, CA?
Lancaster and Santa Monica have similar restriction levels.
Lancaster, CA
Los Angeles County
Lancaster regulates outdoor lighting to reduce light pollution and glare. Fully shielded fixtures required for new installations. Lighting must be directed downward and not trespass onto neighboring properties.
View full Lancaster rules →Santa Monica, CA
Los Angeles County
Santa Monica regulates outdoor lighting under SMMC §9.21.080. While not a standalone dark sky ordinance, the city addresses light pollution through zoning standards. CALGreen Code §5.106.8 also applies to new commercial development.
View full Santa Monica rules →Key Facts Comparison
| Fact | Lancaster | Santa Monica |
|---|---|---|
| Fixtures | Fully shielded required | - |
| Direction | Downward only | - |
| Color Temp | 3000K or below preferred | - |
| Topic | Dark Sky Rules | - |
| Code | - | SMMC §9.21.080 |
| Dark Sky Ordinance | - | No standalone ordinance |
| CALGreen | - | §5.106.8 light pollution standards |
| New Development | - | Shielding and CCT limits apply |
Highlighted rows indicate differences between cities.
Lancaster FAQ
What does fully shielded mean?
The fixture must direct all light downward with no light emitted above the horizontal plane. This prevents glare and sky glow while still providing ground illumination.
Can my neighbor's lights shine into my yard?
Most codes prohibit light trespass onto neighboring properties. Contact Lancaster code enforcement if outdoor lights from adjacent properties create a nuisance.
Santa Monica FAQ
What does fully shielded mean?
The fixture must direct all light downward with no light emitted above the horizontal plane. This prevents glare and sky glow while still providing ground illumination.
Can my neighbor's lights shine into my yard?
Most codes prohibit light trespass onto neighboring properties. Contact Santa Monica code enforcement if outdoor lights from adjacent properties create a nuisance.
Compare other topics
See how Lancaster and Santa Monica compare on other ordinance categories.
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