# Alteration or repair permit 101081181 at 400 S La Salle St, Chicago

Chicago Department of Buildings permit 101081181: issued Jul 6, 2026 for alteration or repair work at 400 S La Salle St. Dds 2019 CBRC: phase 2 of 3: infrastructure upgrades. Convert 7 story office building to a data center. Reinforcement of existing floors. Architectural plans provided for reference. Electrical work limited to electrical distribution from comed vault to upper floors. Mechanical, plumbing and fire protection work to be permitted under phase 3. Equipment to be permitted under phase 3. Phase 1 demolition only work permitted under 101083036. IA Construction; b-business consultant reviewer: v3 companies of IL.

- Permit number: 101081181
- Issued: Jul 6, 2026
- Type of work: Alteration or repair (city: Permit - renovation/alteration)
- Status: Other (city: Phased permitting)
- Reported cost: $51,100,000
- ZIP code: 60605 (derived from location)
- All permits at this address: https://nearbypermits.com/chicago/address/400-s-la-salle-st/

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Source: Chicago Department of Buildings permit data (https://data.cityofchicago.org/d/ydr8-5enu). Checked 2026-10-06 16:21 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

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Every permit at 400 S La Salle St: https://nearbypermits.com/chicago/address/400-s-la-salle-st/