# Alteration or repair permit 100803247 at 4134 N Keystone Ave, Chicago

Chicago Department of Buildings permit 100803247: issued Feb 6, 2019 for alteration or repair work at 4134 N Keystone Ave. Install new columns and footings and replace existing wood rear stair and enclosure per plans in a A-2 residential building.

- Permit number: 100803247
- Issued: Feb 6, 2019
- Type of work: Alteration or repair (city: Permit - renovation/alteration)
- Status: Finished (city: Complete)
- Reported cost: $23,400
- ZIP code: 60641 (derived from location)
- All permits at this address: https://nearbypermits.com/chicago/address/4134-n-keystone-ave/

---
Source: Chicago Department of Buildings permit data (https://data.cityofchicago.org/d/ydr8-5enu). Checked 2026-10-13 00:56 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

This site provides applications using data that has been modified for use from its original source, www.cityofchicago.org, the official website of the City of Chicago. The City of Chicago makes no claims as to the content, accuracy, timeliness, or completeness of any of the data provided at this site. The data provided at this site is subject to change at any time. It is understood that the data provided at this site is being used at one’s own risk.

Every permit at 4134 N Keystone Ave: https://nearbypermits.com/chicago/address/4134-n-keystone-ave/