ADU rules in North Chicago, IL — also called accessory dwelling unit regulations or granny flat ordinances — cover setbacks, owner-occupancy, parking, and permit requirements.
North Chicago permits limited accessory dwelling units within the Urban Redevelopment Overlay (URO) District. ADUs must be within a principal building of at least two stories and comply with ADA and IL Accessibility Code.
North Chicago Zoning Ordinance defines Limited Commercial Residence as one or two ground-floor accessory dwelling units on a single parcel within the URO District with B2 General Business underlying zoning. ADUs must be located wholly within a principal building of at least two stories. Units must fully comply with ADA and Illinois Accessibility Code. Bathrooms and kitchens must be directly accessible from open living space, not through a bedroom. Illinois HB 2373 (2024) encourages ADU development statewide.
Unpermitted ADUs face stop-work orders and removal or legalization requirements. Fines of $500–$2,000 apply for unpermitted construction. Properties with illegal ADUs may face title issues at sale.
North Chicago, IL
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Side-by-side rule comparisons with other cities in Lake County.
See how other cities in Lake County handle adu rules.
See how North Chicago's adu rules rules stack up against other locations.
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