Light Trespass: Folsom vs Isleton
How do light trespass rules compare between Folsom, CA and Isleton, CA?
Folsom and Isleton have similar restriction levels.
Folsom, CA
Sacramento County
Folsom prohibits outdoor lighting that causes direct glare or excessive illumination onto adjacent properties. Light trespass is enforced as a nuisance under FMC Title 8 and zoning code lighting standards.
View full Folsom rules →Isleton, CA
Sacramento County
In unincorporated Sacramento County, Zoning Code lighting standards require multifamily, commercial, and parking-area fixtures to be fully shielded and directed downward and away from neighbors so that 'no light fixture directly illuminates an area outside of the site' (Sec. 5.4.3, 5.9.4.G). There is no fixture mandate for single-family homes.
View full Isleton rules →Key Facts Comparison
| Fact | Folsom | Isleton |
|---|---|---|
| Standard | ~0.5 fc at residential line | - |
| Fixtures | Shield lamp source | - |
| Process | Code complaint | - |
| Code | FMC Title 8 / Title 17 | - |
| First step | Talk to neighbor | - |
| Off-site illumination | - | No fixture may directly illuminate an area outside the site |
| Shielding | - | Full shielding/recessed; full cut-off (IESNA) for new fixtures |
| Light source visibility | - | Not visible from residential properties (regulated uses) |
| Existing businesses | - | Parking-area standard applies retroactively (Sec. 5.9.4.G) |
| Single-family homes | - | No fixture mandate; handled as nuisance |
| Code section | - | Zoning Code Sec. 5.4.3, 5.9.4.G |
Highlighted rows indicate differences between cities.
Folsom FAQ
My neighbor's security light shines in my bedroom. What can I do?
First talk to the neighbor. If unresolved, file a Folsom code complaint. Code Enforcement will inspect and can require the owner to shield or redirect the fixture under FMC lighting standards.
Who enforces this in Folsom?
Folsom code enforcement at (916) 355-7285 handles most complaints.
Isleton FAQ
What can I do about a neighboring apartment or business shining light onto my property?
Sections 5.4.3 and 5.9.4.G require multifamily and commercial/parking lighting to be fully shielded and aimed so no fixture illuminates off-site. You can report spillover to Sacramento County Code Enforcement; for parking areas the standard even applies to existing businesses.
Does the code limit light trespass from a single-family home?
There is no specific fixture requirement for single-family homes. Glare or spillover from a neighbor's residential lighting is generally addressed as a nuisance through code enforcement rather than a dedicated lighting standard.
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