Chicago, IL Outdoor Lighting: Light Trespass & Shielding (2026)
Key Facts
- Standard
- Directed downward, shielded from neighbors
- Citation
- Zoning Ordinance § 17-9-0117-G.3
- Applies to
- Industrial, waste, warehousing & freight uses
- Also covers
- Gas stations, parking garages, POS district
- Enforced by
- Zoning Administrator; Dept. of Buildings
Summary
Chicago's zoning code requires outdoor lighting at gas stations, industrial and waste-related sites, and multi-level parking garages to be directed downward and shielded so it doesn't spill onto neighboring properties.
All lighting must be directed downward and shielded to prevent illumination of adjoining properties.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: 2026 S-74: Current through Council Journal of June 17, 2026).
Full Breakdown
Chicago has no single 'light pollution' ordinance; instead the Zoning Ordinance bakes shielding requirements into specific use standards. Under Section 17-9-0117-G.3, waste-related uses, recycling facilities, intensive manufacturing, warehousing, wholesaling, freight terminals, container storage, and outdoor raw-material storage must direct all lighting downward and shield it from adjoining properties as part of mandatory site plan review under Section 17-13-0800. Nearly identical language governs gas stations (17-9-0109-E), multi-level parking garages (17-11-0206-D), and the Parks and Open Space district (17-6-0204-C), all aimed at keeping glare off neighboring residential land.
Violations & Fines
Unshielded lighting at a covered use violates the Zoning Ordinance (§17-16-0200); the Zoning Administrator can deny, condition, or revoke permits, issue a stop-work order, or seek injunctive relief and fines under Chapter 17-16.
Frequently Asked Questions
Does Chicago have a citywide light pollution law?
What happens if outdoor lighting isn't shielded?
Sources & Official References
Other rules in Chicago
Compare Chicago to another location·View the Illinois outdoor lighting overview
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Light Trespass & Shielding in Nearby Cities
How other cities in Cook County handle light trespass & shielding.