Hydronic piping extension/reconfiguration
Mechanical (HVAC) at 343 S Dearborn St, Chicago
Chicago Department of Buildings permit B200445011: issued Oct 23, 2025 for mechanical (hvac) work at 343 S Dearborn St. Hydronic piping extension/reconfiguration, repair/replacement affecting 1 systems : 2 chiller(york, ylaa0200hj46xfb, roof). Electrical work under this permit = yes. Locations: 2 residential unit(s), 0 non-residential unit(s), 1 interior common areas, exterior work, on roof.
- Permit number
- B200445011
- Issued
- Type of work
- Mechanical (HVAC)
- Status
- Issued
- Reported cost
- $680,545
- ZIP code
- 60604 (from the permit's location)
- City's category
- Mechanical work, permit – express permit program
- 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 343 S Dearborn St, and what's permitted nearby
Chicago Department of Buildings updated its data Oct 13, 2026. We checked it Oct 13, 20:35 UTC. See the city's official records.
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