Compare ADU zoning rules across 2 Illinois cities. Average ADU score: 7.0/10.
| City | Max Size | Setbacks | Permit Fees | Build Cost | 1BR Rent | Score |
|---|---|---|---|---|---|---|
| Chicago | Detached coach houses governed by bulk/setback standards rather than a flat sq-ft cap (limited to 60% of the required rear setback area); Confirm buildable size with Chicago Dept. of Housing for your lot | Detached ADU must sit within the rear 50% of the lot; Confirm with Chicago Dept. of Housing | $2,800-$4,500 | $150,000-$300,000 | $1,450-$1,950/mo | 7/10 |
| Evanston | 1,000 sq ft | 12 feet | $2,500-$4,000 | $140,000-$280,000 | $1,500-$2,000/mo | 7/10 |
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