Light Trespass: Altadena vs South Gate
How do light trespass rules compare between Altadena, CA and South Gate, CA?
Altadena and South Gate have similar restriction levels.
Altadena, CA
Los Angeles County
LA County Code Section 22.140.470 (Outdoor Lighting) requires all outdoor lighting to be shielded so that direct illumination does not cross the property line, with hard caps in residential zones.
View full Altadena rules →South Gate, CA
Los Angeles County
Light trespass in unincorporated LA County is regulated under the ROLD in rural areas: 0.5 foot-candles maximum on adjacent residential/open space parcels, 1.0 foot-candles on other zones. Urban unincorporated areas rely on general nuisance provisions for light trespass complaints.
View full South Gate rules →Key Facts Comparison
| Fact | Altadena | South Gate |
|---|---|---|
| Code Section | LA County 22.140.470 | - |
| Property Line Limit | 0.5 foot-candle (residential) | - |
| Fixture Type | Fully shielded / cutoff | - |
| Holiday Exemption | Nov 15 – Jan 15 | - |
| ROLD Residential | - | 0.5 foot-candles max at property line |
| ROLD Other | - | 1.0 foot-candles max |
| Urban Areas | - | General nuisance provisions |
| Best Practice | - | Lights off by 10 PM recommended |
Highlighted rows indicate differences between cities.
Altadena FAQ
Can my neighbor's floodlight shine into my Altadena yard?
No — LA County Code 22.140.470 caps property-line illumination at 0.5 foot-candle and requires shielded fixtures. File a complaint with Code Enforcement.
South Gate FAQ
Can I complain about my neighbor's bright lights in LA County?
Yes. If a neighbor's lights unreasonably interfere with your property use, file a complaint with code enforcement at (888) 756-2700. In ROLD areas, specific shielding requirements make enforcement easier. Outside ROLD, it's addressed as a general nuisance.
What is light trespass?
Light from one property that shines onto a neighboring property in a way that unreasonably interferes with the neighbor's use and enjoyment. Common sources include unshielded flood lights, security lights, and decorative lighting.
Can I take legal action over light trespass?
Yes. Beyond code enforcement, you can file a private nuisance lawsuit in civil court for persistent light trespass. Courts can order the offending lights removed or modified and award damages.
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