Remove existing river rock ballast on the main roof at the green roof areas & lower to the ground for
Roofing at 446 E Ontario St, Chicago
Chicago Department of Buildings permit 100347608: issued Jun 4, 2010 for roofing work at 446 E Ontario St. Remove existing river rock ballast on the main roof at the green roof areas & lower to the ground for disposal off site. Remove existing deteriorated polystyrene insulation & dispose of off site. Install new layer of extruded polystyrene insulattion & drainage composite mat in the designated area. Install live roof fully mature green roof modules- same as existing roof; subject to field inspections.
- Permit number
- 100347608
- Issued
- Type of work
- Roofing
- Status
- Issued
- Reported cost
- $76,429
- ZIP code
- 60611 (from the permit's location)
- City's category
- Permit - easy permit process
- City's status
- Not listed
- 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 446 E Ontario St, and what's permitted nearby
Chicago Department of Buildings updated its data Oct 5, 2026. We checked it Oct 6, 05:13 UTC. See the city's official records.
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