Light Trespass: Des Plaines vs Oak Park
How do light trespass rules compare between Des Plaines, IL and Oak Park, IL?
Des Plaines and Oak Park have similar restriction levels.
Des Plaines, IL
Cook County
Des Plaines's zoning code limits light trespass onto adjacent residential properties. Commercial fixtures must be shielded and the illumination at residential property lines is typically capped at 0.1 to 0.5 foot-candles. Excessive residential security lighting that shines into a neighbor's home may be subject to nuisance enforcement.
View full Des Plaines rules →Oak Park, IL
Cook County
Oak Park prohibits outdoor lighting that creates glare or light trespass onto adjacent residential properties. Property owners must shield and direct lighting fixtures to confine illumination to their own property. Code Enforcement handles complaints about intrusive lighting from neighbors or commercial properties.
View full Oak Park rules →Key Facts Comparison
| Fact | Des Plaines | Oak Park |
|---|---|---|
| Residential Line | 0.1 fc typical | - |
| Non-Res Line | 0.5 fc typical | - |
| Shielding | Full cutoff required | - |
| Residential Limit | Nuisance standard | - |
| Enforcement | (847) 391-5300 | - |
| Light Trespass | - | Prohibited across property lines |
| Security Lighting | - | Must be aimed to avoid neighbors |
| Commercial Standard | - | Max foot-candles at residential boundary |
| Motion Sensors | - | Allowed but must be aimed properly |
| Code Enforcement | - | (708) 358-5440 |
Highlighted rows indicate differences between cities.
Des Plaines FAQ
What is light trespass?
Light trespass is unwanted illumination spilling from one property onto another. Des Plaines limits commercial lighting to low levels at residential property lines and addresses egregious residential cases as nuisance.
My neighbor's floodlight shines into my bedroom — what can I do?
Try a friendly conversation first. If unresolved, contact Des Plaines Code Enforcement at (847) 391-5300; persistent significant light trespass may be addressed under nuisance provisions.
Are motion sensor lights better?
Yes. Motion sensor lights with short timers reduce light trespass and energy use compared to dusk-to-dawn floodlights, while still providing security benefits.
Oak Park FAQ
My neighbor's light shines into my bedroom — what can I do?
File a complaint with Code Enforcement at (708) 358-5440. Oak Park requires outdoor lighting to be shielded and directed to avoid illuminating adjacent properties. The village can require the neighbor to adjust or replace the fixture.
Are there limits on commercial lighting near homes?
Yes. Commercial property lighting must not exceed specified foot-candle levels at the property line abutting residential zones. Parking lots require full cutoff fixtures approved during site plan review.
Can I have motion-activated security lights?
Yes. Motion-activated security lights are permitted but must be properly aimed to illuminate only your property and avoid triggering from activity on adjacent properties.
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