# Alteration or repair permit 100270665 at 343 S Dearborn St, Chicago

Chicago Department of Buildings permit 100270665: issued Jan 20, 2009 for alteration or repair work at 343 S Dearborn St. Interior alterations of existing 2nd floor toilet rooms and interior alterations of two existing office suites 201 and 203 including electrical, no HVAC, as per plans. Conditional permit subject to audit and field inspection.

- Permit number: 100270665
- Issued: Jan 20, 2009
- Type of work: Alteration or repair (city: Permit - renovation/alteration)
- Status: Finished (city: Complete)
- Reported cost: $100,000
- ZIP code: 60604 (derived from location)
- All permits at this address: https://nearbypermits.com/chicago/address/343-s-dearborn-st/

---
Source: Chicago Department of Buildings permit data (https://data.cityofchicago.org/d/ydr8-5enu). Checked 2026-10-14 11:56 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 343 S Dearborn St: https://nearbypermits.com/chicago/address/343-s-dearborn-st/