CyrusOne's Illinois development sits at the north-west corner of Thayer and Clark roads in Talkington Township, Sangamon County, roughly 14 miles south-west of Springfield and 80 miles north of St Louis; the Waverly name comes from the nearest town, which straddles the Sangamon-Morgan line. The scheme covers 280 acres and six buildings of 250,000 sq ft each, a $500 million commitment reaching 600 MW at full build-out, cooled by a closed-loop air system and sited near Swift Current Energy's Double Black Diamond solar farm. Sangamon County's zoning board cleared it in November 2025 and the county board followed that December, with a further county board approval in April 2026. Construction is due to start in 2026 and the first phase to come into service in 2027. Nothing is built yet, and CyrusOne has published no building names for the campus - its Illinois estate today is the Aurora trio and CHI5 at Lombard.
What is planned at Thayer and Clark roads in Sangamon County?
Six data centre buildings of 250,000 sq ft each on 280 acres, a $500 million project reaching 600 MW at full build-out.
What stage has the CyrusOne Waverly project reached?
Approved and pre-construction. The Sangamon County zoning board cleared it in November 2025, the county board in December 2025, and a further county board approval followed in April 2026.
When is the first capacity expected at the Talkington Township campus?
Construction is due to begin in 2026, with phase one targeted at 2027.
Which county is the Waverly campus in?
Sangamon County, Illinois. The town of Waverly nearby straddles the Sangamon-Morgan county line, which is what invites a Morgan County reading.
How will the Illinois campus be cooled?
By a closed-loop air system. The site also adjoins Swift Current Energy's Double Black Diamond solar farm.
Other Colocation Data Centers in Talkington Township, IL, US