ADU rules in North Chicago, IL β also called accessory dwelling unit regulations or granny flat ordinances β 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 $500β$2,000 apply for unpermitted construction. Properties with illegal ADUs may face title issues at sale.
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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.
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