Grayslake is moving forward with potentially one of the largest single development projects in Lake County’s history, with a multi-billion-dollar data center campus that, if fully built out, would bring more than 10 million square feet of data center space to the village.

The massive project could bring thousands of jobs, new tax revenue, and millions of dollars in developer fees to Grayslake, but it also sits within a growing conversation around data centers in the Great Lakes region, as concerns over their water and energy usage increase.

Known as T5 @ Chicago IV, current plans show the campus comprised of 18 data center buildings, although T5 Data Centers CEO Pete Marin indicated there could be up to 20 buildings. The first buildings could be going up as soon as 2027, and full build-o

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