# 400 South LaSalle office-to-data-center conversion (Phases 1–3)

400 South LaSalle office-to-data-center conversion (Phases 1–3) is a data center development record in Illinois.

Canonical: https://eloragrid.ai/land-grid/data-centres/united-states/illinois/400-south-lasalle-office-to-data-center-conversion-phases-13-6c915d4380307b296130
Status: planning_approved
Operator: Unknown
Evidence reviewed: 2026-11-09

## Electrical work and project likelihood

Probability not assessed. Planning stage is not a calibrated probability.

## Sources

- [City of Chicago, Department of Buildings](https://data.cityofchicago.org/resource/ydr8-5enu.json?$select=id,permit_,permit_status,permit_type,review_type,application_start_date,issue_date,processing_time,street_number,street_direction,street_name,work_description,reported_cost,pin_list,community_area,ward,xcoordinate,ycoordinate,latitude,longitude,contact_1_type,contact_1_name&$where=permit_%20in%20(%27101083036%27,%27101081181%27,%27101084518%27,%27101080339%27)&$order=issue_date) — Status observation for the listed project or phase. Status reported as of: 2026-09-16.
- [Data Center Atlas](https://datacatalog.cookcountyil.gov/resource/nj4t-kc8j.json?$select=pin,pin10,year,class,lon,lat,x_3435,y_3435,township_name,chicago_community_area_name,cook_municipality_name&$where=pin=%2717162420170000%27&$order=year%20DESC&$limit=5) — Site or campus locator, as attributed in the source.
- [Data Center Atlas](https://kiankyars.github.io/datacenter-atlas/downloads/latest/projects.csv) — 

Elora editorial summaries; linked sources and geographic data retain their respective rights. No blanket third-party licence is granted.

Nearby infrastructure does not establish an electrical connection, available capacity or an open tender.