Interior and exterior alterations to an existing 35 story office building
Alteration or repair at 321 N Clark St, Chicago
Chicago Department of Buildings permit 100741052: issued Apr 30, 2018 for alteration or repair work at 321 N Clark St. Interior and exterior alterations to an existing 35 story office building. Work to include lobby, ll1 and ll2, elevator modernization, new mezzanine, new communicating stair, curtain wall modifications, new entrance canopy and plaza repairs as per plans. Structural peer review.
- Permit number
- 100741052
- Issued
- Type of work
- Alteration or repair
- Status
- Finished
- Reported cost
- $23,000,000
- ZIP code
- 60654 (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 321 N Clark St, and what's permitted nearby
Chicago Department of Buildings updated its data Oct 7, 2026. We checked it Oct 9, 03:45 UTC. See the city's official records.
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