Interior alterations and new MEP systems for a change of use from mercantile to A-2 private event space
Alteration or repair at 400 N Michigan Ave, Chicago
Chicago Department of Buildings permit 101077511: issued Jan 16, 2026 for alteration or repair work at 400 N Michigan Ave. Self-cert 2019 CBRC: interior alterations and new MEP systems for a change of use from mercantile to A-2 private event space. Includes approved acar for plumbing fixtures. (Occupancy A-2 / construction type 1b).
- Permit number
- 101077511
- Issued
- Type of work
- Alteration or repair
- Status
- Finished
- Reported cost
- $2,000
- ZIP code
- 60611 (from the permit's location)
- City's category
- Permit - renovation/alteration
- City's status
- Complete
- Source
- Chicago Department of Buildings permit data (this record)
Type of work and status are our own standard labels, so permits compare across cities. The city's wording is in the "City's category" and "City's status" rows. We show costs under $100 as not listed, because filers often enter $0 or $1 when the city doesn't require a cost.
All permits at 400 N Michigan Ave, and what's permitted nearby
Chicago Department of Buildings updated its data Oct 3, 2026. We checked it Oct 5, 14:33 UTC. Official data.
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