Evanston, IL Accessory Structures: ADU Owner Occupancy (2026)
Key Facts
- Owner occupancy required?
- No
- Ownership rule
- Common ownership with main house
- Occupancy limit
- One family maximum
- Governing section
- Evanston City Code § 6-4-6-10(K)
Summary
Evanston does not require the property owner to live on-site to have an accessory dwelling unit, but the ADU must stay under common ownership with the main house and house no more than one family.
(K)Ownership and Occupancy: There is no requirement that the property owner reside on the property, however, an ADU shall remain under common ownership with the residential building. Occupancy of the ADU shall be limited to no more than one (1) family.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 21).
Full Breakdown
Evanston's zoning code lets homeowners rent out an accessory dwelling unit without living on the property themselves. Section 6-4-6-10(K) waives any owner-occupancy requirement for ADUs: a landlord doesn't have to reside in the primary home to lease out a coach house, basement unit, or backyard cottage. The tradeoff is that the ADU can't be split off and sold separately: it must remain under the same ownership as the principal residential building, and occupancy is capped at one family at a time, ruling out boarding-house use. This is a real, quotable local standard, not state boilerplate.
Violations & Fines
No fine is listed for occupancy alone, but occupying an ADU without common ownership or beyond the one-family limit is a zoning violation enforceable by the City's Building & Development Services Division.
Frequently Asked Questions
Does an Evanston homeowner have to live on-site to rent out an ADU?
Can an Evanston ADU be sold separately from the main house?
Sources & Official References
Other rules in Evanston
Compare Evanston to another location·View the Illinois accessory structures overview
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ADU Owner Occupancy in Nearby Cities
How other cities in Cook County handle adu owner occupancy.