Tenant improvements in existing office building for a single office tenant on floors 20¿23
Alteration or repair at 401 N Michigan Ave, Chicago
Chicago Department of Buildings permit 101081881: issued Apr 28, 2026 for alteration or repair work at 401 N Michigan Ave. Self-cert 2019 CBRC: tenant improvements in existing office building for a single office tenant on floors 20¿23. Work includes new non-structural partitions, finishes, lighting, millwork, furniture, ventilation, and electrical as per plans. (Occupancy group B; type 1a construction).
- Permit number
- 101081881
- Issued
- Type of work
- Alteration or repair
- Status
- Issued
- Reported cost
- $900,000
- ZIP code
- 60611 (from the permit's location)
- City's category
- Permit - renovation/alteration
- City's status
- Active
- 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 401 N Michigan Ave, and what's permitted nearby
Chicago Department of Buildings updated its data Oct 5, 2026. We checked it Oct 6, 00:09 UTC. See the city's official records.
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