# Alteration or repair permit 101084299 at 4310 N Keystone Ave, Chicago

Chicago Department of Buildings permit 101084299: issued Aug 10, 2026 for alteration or repair work at 4310 N Keystone Ave. Self cert. RES. - 2019 CBRC - Partial lower level: alterations to existing multi unit apartment building to provide one conversion per attached plans. Existing and planned occupancy R-2 residential; construction type iii-a; czo 17-17-0102-b household. No exterior work.

- Permit number: 101084299
- Issued: Aug 10, 2026
- Type of work: Alteration or repair (city: Permit - renovation/alteration)
- Status: Issued (city: Active)
- Reported cost: $25,000
- ZIP code: 60641 (derived from location)
- All permits at this address: https://nearbypermits.com/chicago/address/4310-n-keystone-ave/

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Source: Chicago Department of Buildings permit data (https://data.cityofchicago.org/d/ydr8-5enu). Checked 2026-10-05 21:33 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

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Every permit at 4310 N Keystone Ave: https://nearbypermits.com/chicago/address/4310-n-keystone-ave/