# New building permit 101078888 at 4427 S Union Ave, Chicago

Chicago Department of Buildings permit 101078888: issued Mar 19, 2026 for new building work at 4427 S Union Ave. Spr 2019 CBC: new two story single family home and detached 2 car garage as per per plans (construction type 3a, occupancy type r-5). Certified plan corrections. New house certificate issued april 10, 2026 for property to be recognized as 4425 S union ave.

- Permit number: 101078888
- Issued: Mar 19, 2026
- Type of work: New building (city: Permit - new construction)
- Status: Issued (city: Active)
- Reported cost: $300,000
- ZIP code: 60609 (derived from location)
- All permits at this address: https://nearbypermits.com/chicago/address/4427-s-union-ave/

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Source: Chicago Department of Buildings permit data (https://data.cityofchicago.org/d/ydr8-5enu). Checked 2026-10-14 07:37 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

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Every permit at 4427 S Union Ave: https://nearbypermits.com/chicago/address/4427-s-union-ave/