# Mechanical (HVAC) permit 100694029 at 20 E Delaware Pl, Chicago

Chicago Department of Buildings permit 100694029: issued Mar 7, 2017 for mechanical (hvac) work at 20 E Delaware Pl. Revision to permit # 100684304 to change the ventilation & refrigeration contractor of record to heatmasters mechanical, inc.

- Permit number: 100694029
- Issued: Mar 7, 2017
- Type of work: Mechanical (HVAC) (city: Permit - easy permit process)
- Status: Issued (city: not listed)
- Reported cost: Not listed
- ZIP code: 60611 (derived from location)
- All permits at this address: https://nearbypermits.com/chicago/address/20-e-delaware-pl/

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Source: Chicago Department of Buildings permit data (https://data.cityofchicago.org/d/ydr8-5enu). Checked 2026-10-04 14:33 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

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