Chicago Byte Exchange (400 S. LaSalle)
Chicago, Cook County, IL
Construction is under way on Chicago Byte Exchange (400 S. LaSalle) in Chicago, IL. The project is sized at 33 MW. Legacy Investing (with GI Partners) is converting the former Cboe Global Markets HQ, a 385,000 sq ft, six-story office building at 400 S. LaSalle St in the Loop, into a 33MW data center called Chicago Byte Exchange. Acquisition from Prime Group/Capri Investment closed Nov 2025 for $40M; over 20MW of critical load targeted ready for service by early 2027.
- 33 MWPlanned capacity
Project status
- Announced
- Permitting
- Under construction
- Operational
Recorded changes
Nothing recorded yet. Follow this project to hear when something changes.
Community sentiment
Should this project be built?
What’s next
Election Day is in 11 days.
Latest news
Nothing written about this data center yet. The latest from Cook County, IL:
Records and documentation
Illinois state legislation
- ICC Docket Nos. 25-0677/25-0679 (Consolidated) - ComEd Large Demand Project Applicant/Customer (LDPAC) TariffComEd tariff creating a formal "Large Demand Project Applicant/Customer" class for data centers/large loads ≥50MW, approved March 2026 with graduated security deposits ($1M for 50-200MW, +$500k per additional 100MW). Cites 75+ pending large-load interconnection requests totaling 28,000+MW, exceeding ComEd's all-time system peak.Download
- Project Vector Annexation and Development AgreementAnnexation and development agreement setting terms for the 'Project Vector' data center development in DeKalb, Illinois.Download
- HB2756 - Data Center Cost-Shifting Protection ActProtects ratepayers from cost-shifting caused by data centers.Download
- SB2181 - Illinois Data Center Energy and Water Reporting ActRequires all data centers to annually report energy and water consumption beginning January 1, 2026.Download
- SB58 - Sales and Use Tax Law exemption for certified data center facilitiesCreates sales/use tax exemptions for certified data center facilities.Download
- SB57 - Large-Load Data CentersRegulates large-load data centers.Download
- HB2026 - Data center industrial zoning ordinance review requirementRequires localities to review and amend zoning ordinances for data centers under industrial zoning rules.Download
- HB1301 - Limits data center electricity cost risk and imposes moratoriumLimits costs/risks associated with data center electricity use and imposes a moratorium.Download
- Data Center Zoning OrdinanceLogan County, Illinois zoning ordinance for data centers, approved by the board June 1, 2026.Download
- SB4206 - LOC GOVT-DATA CENTERDescription comingDownload
- HB5755 - MUNI CD-DATA CENTER REFERENDUMDescription comingDownload
- SB4016 - HYPERSCALE DATA CENTERSDescription comingDownload
- SB3761 - DATA CENTERS-VARIOUSDescription comingDownload
- SB0094 - DATA CENTERS-FOREIGN OWNERSHIPDescription comingDownload
- SB3830 - DATA CENTERS-VARIOUSDescription comingDownload
- SB3578 - DATA CENTERS-FOREIGN OWNERSHIPDescription comingDownload
- HB5513 - HYPERSCALE DATA CENTERSDescription comingDownload
- SB4203 - DCEO-DATA CENTERSDescription comingDownload
Site details
- Operator
- Not announced
- County
- Cook County, IL
- Capacity
- 33 MW
- Address
- Chicago, IL
- Stage
- Under construction
Size: not on file
Map
Photos
One-year ban on new data center construction in Chicago proposedNBC 5 Chicago
Mayor Brandon Johnson proposes Chicago data center moratoriumChicago Tribune
An $8 billion Treasury break helped Meta’s tax rate hit 2%. Senators want data center tax answersFortune
The states with the fewest and most data centers, rankedBusiness Insider
Finns Are Seething After Google Illegally Toppled 250,000 Trees for a Data CenterMother Jones
Google offer to pay others to help data center powerArkansas Online
This bill would make data centers pay their own way for powerSalt Lake City Deseret News
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