# Alteration or repair permit 100775514 at 3121 W Byron St, Chicago

Chicago Department of Buildings permit 100775514: issued Oct 25, 2018 for alteration or repair work at 3121 W Byron St. Cps school - no change in work. General interior remodeling of an existing classroom and toilet room. The work includes finishes, doors and frames, mechanical, electrical, plumbing, and other related work as indicated.

- Permit number: 100775514
- Issued: Oct 25, 2018
- Type of work: Alteration or repair (city: Permit - renovation/alteration)
- Status: Finished (city: Complete)
- Reported cost: $70,623
- ZIP code: 60618 (derived from location)
- All permits at this address: https://nearbypermits.com/chicago/address/3121-w-byron-st/

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Source: Chicago Department of Buildings permit data (https://data.cityofchicago.org/d/ydr8-5enu). Checked 2026-10-12 10:01 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

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Every permit at 3121 W Byron St: https://nearbypermits.com/chicago/address/3121-w-byron-st/