T5 Chicago IV (CHI IV)

T5 Data Centers is associated with this data-center project now reported under construction in Grayslake, IL.

IllinoisFacility location

Power1,200 MW

Operator / developerT5 Data Centers

Site / phase400 acres

UtilityComEd

Hotlist signal history

1 reviewed change

Sep 1, 2026 · permittingT5 Chicago IV clears its first construction permit

Grayslake issued the initial building permit on September 1 for the first structure at the T5 Chicago IV campus. Site work for the first approximately 800,000-square-foot building can begin while a separate lawsuit challenging the earlier approvals remains pending.

T5 Chicago IV (CHI IV)

Hotlist signal history

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