# Alteration or repair permit B200507793 at 3900 N Janssen Ave, Chicago

Chicago Department of Buildings permit B200507793: issued Sep 10, 2026 for alteration or repair work at 3900 N Janssen Ave. Scope: nonstructural interior preparatory demolition of non-load bearing partitions and m.e. P. Systems for 22 d.u. With demo drawings and all other work to be performed on 101086107. Locations: 22 residential unit(s), 0 non-residential unit(s), 1 interior common areas, grade level, 1st, 2nd, and 3rd floors..

- Permit number: B200507793
- Issued: Sep 10, 2026
- Type of work: Alteration or repair (city: Nonstructural Interior Work, PERMIT – EXPRESS PERMIT PROGRAM)
- Status: Issued (city: Active)
- Reported cost: $125,000
- ZIP code: 60613 (derived from location)
- All permits at this address: https://nearbypermits.com/chicago/address/3900-n-janssen-ave/

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Source: Chicago Department of Buildings permit data (https://data.cityofchicago.org/d/ydr8-5enu). Checked 2026-10-05 15:32 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

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Every permit at 3900 N Janssen Ave: https://nearbypermits.com/chicago/address/3900-n-janssen-ave/