Light Trespass: Des Plaines vs Evanston
How do light trespass rules compare between Des Plaines, IL and Evanston, IL?
Des Plaines and Evanston 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 →Evanston, IL
Cook County
Light trespass from outdoor lighting in unincorporated Cook County is addressed through general nuisance provisions and zoning standards. Lights that unreasonably disturb neighbors may result in enforcement action.
View full Evanston rules →Key Facts Comparison
| Fact | Des Plaines | Evanston |
|---|---|---|
| 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 | - |
| Standard | - | Nuisance-based |
| Residential | - | Direct light downward |
| Commercial | - | Zoning standards apply |
| Fine | - | $100–$1,000 per offense |
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.
Evanston FAQ
What can I do about a neighbor's lights shining on my property?
File a complaint with Cook County Building and Zoning for light nuisance. The county can enforce under general nuisance provisions with fines of $100 to $1,000.
Are there specific light trespass measurements?
Cook County uses a nuisance-based standard rather than specific lux measurements. Zoning standards for commercial properties include spillover requirements.
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