T5 Grayslake data center campus (about 472 acres)
under construction Grayslake, Lake County, Illinois
DeveloperT5 Data Centers
UtilityComEd
Capacityunknown
Investmentunknown
Latest
2026-09-01
Village issued the first building permit while a lawsuit seeks to block it
Notes: Build-out over 7 to 10 years.
Sources: Lake McHenry Scanner · Village of Grayslake