Light Trespass: Des Plaines vs Oak Lawn
How do light trespass rules compare between Des Plaines, IL and Oak Lawn, IL?
Des Plaines and Oak Lawn 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 Lawn, IL
Cook County
Light trespass, where outdoor lighting from one property creates unwanted illumination on neighboring properties, is addressed through Oak Lawn's zoning and nuisance codes. Residents can request Code Enforcement investigation of persistent light trespass from neighboring properties.
View full Oak Lawn rules →Key Facts Comparison
| Fact | Des Plaines | Oak Lawn |
|---|---|---|
| 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 | - |
| Regulated | - | Yes, under nuisance |
| Resolution | - | Often voluntary |
| Investigation | - | Code Enforcement |
| Fixes | - | Shields, reaiming, replacement |
| Fines | - | $75-200 continued |
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 Lawn FAQ
What is light trespass?
Light trespass is unwanted light from one property shining onto another, such as a neighbor's floodlight illuminating your bedroom window or yard.
What should I do about my neighbor's bright lights?
Speak with the neighbor first; most issues are resolved by reaiming or shielding fixtures. If that fails, contact Oak Lawn Code Enforcement to investigate.
Are security lights exempt?
No. Security lighting must still be aimed onto the owner's property and not trespass onto neighbors. Motion-activated fixtures that illuminate briefly are a good compromise between security and neighbor impact.
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