Structural peer review included
Alteration or repair at 646 N Michigan Ave, Chicago
Chicago Department of Buildings permit 101081096: issued May 18, 2026 for alteration or repair work at 646 N Michigan Ave. Self-cert 2019 CBRC: structural peer review included. Alteration to existing 5th floor occupiable roof guardrail. Scope to include removal of existing guardrail to install new guardrail /windscreen system. No change of occupancy. 1A construction, b-business.
- Permit number
- 101081096
- Issued
- Type of work
- Alteration or repair
- Status
- Issued
- Reported cost
- $487,240
- 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 646 N Michigan Ave, and what's permitted nearby
Chicago Department of Buildings updated its data Oct 2, 2026. We checked it Oct 2, 20:49 UTC. Official data.
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