Yes, you can build in Chicago. The city has a complex zoning code with 12 residential and 5 business district types. Chicago is expanding its ADU pilot program citywide and promoting transit-oriented density. Coach houses (a traditional Chicago ADU type) have specific regulations. Permit processing is managed by the Department of Buildings.
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ADU Status
Expanding — ADU pilot program going citywide
Common Zones
RS-1 through RS-3, RT, RM, B, C, M
Permit Timeline
4-12 weeks
Key Constraint
Aldermanic prerogative, historic districts
142 factors. 20+ government sources. Buildability Score in 20 seconds.
Score My Chicago Property FreeZoning rules in Chicago vary by address. Enter your specific property for accurate results. Always verify with the Chicago planning department before making decisions.