Data Center Campus
CyrusOne: Yorkville Technology Campus
CyrusOne's 228-acre Yorkville Technology Campus (CHI11) at Eldamain and Faxon roads in Yorkville, Illinois, with eight planned single-story data centers and an on-site substation fed from ComEd's Plano substation. Site work began in 2026, with buildout planned over 10 to 20 years.
Campus at a Glance
CyrusOne is developing the Yorkville Technology Campus, which it calls CHI11, through its subsidiary C1 Yorkville LLC. The site sits at the northeast corner of Eldamain and Faxon roads, west of Beecher Road and north of the BNSF railroad, in the City of Yorkville (Bristol Township, Kendall County).
- Land: CyrusOne bought about 228 acres from Yorkville Nexus LLC in July 2024. Yorkville annexed the land in 2005 and zoned it M-2. In December 2025 CyrusOne bought about 127 more acres east of Beecher Road for utility improvements.
- Plan: Yorkville approved nine two-story buildings in July 2024. A February 2026 amendment halved the substation and dropped one building. In July 2026 the city approved eight single-story buildings totaling about 1.85 million sq ft.
- Power: ComEd serves the campus with two 345 kV lines from its adjacent Plano substation to a CyrusOne-owned substation with eight transformers. A second customer substation is planned for the land east of Beecher Road if needed.
- Cooling and water: Air-cooled, closed-loop chillers. The city capped campus water use at 40,000 gallons per day.
- Milestones: Site grading and substation work began in spring 2026. The final plat goes to the City Council in November 2026.
Buildings
Sites on this Campus
| Site | Operator | Status | Operational | Building Size | Built |
|---|---|---|---|---|---|
| CyrusOne: Yorkville 1 | CyrusOne |
Planned
|
— | — | 2028 |
| CyrusOne: Yorkville 2 | CyrusOne |
Planned
|
— | — | 2029 |
| CyrusOne: Yorkville 3 | CyrusOne |
Planned
|
— | — | 2030 |
| CyrusOne: Yorkville 4 | CyrusOne |
Planned
|
— | — | 2031 |
| CyrusOne: Yorkville 5 | CyrusOne |
Planned
|
— | — | 2032 |
| CyrusOne: Yorkville 6 | CyrusOne |
Planned
|
— | — | 2033 |
| CyrusOne: Yorkville 7 | CyrusOne |
Planned
|
— | — | 2035 |
| CyrusOne: Yorkville 8 | CyrusOne |
Prospective Expansion
|
— | — | 2036 |
| CyrusOne: Yorkville 9 | CyrusOne |
Withdrawn
|
— | — | 2037 |
Map and Nearby Locations
CyrusOne: Yorkville Technology Campus Power Growth Over Time
Campus Photos
Developer
CyrusOne is a data center owner, operator, and developer that manages more than 50 facilities, with its footprint concentrated in the U.S. and Europe. The company is based in Dallas and was taken private in March 2022 by funds managed by KKR and Global Infrastructure Partners in a transaction valued at approximately 15 billion dollars including debt.
Its portfolio centers on hyperscale and enterprise colocation across multi-building campuses. CyrusOne has also pursued international growth initiatives alongside its core North American and European markets.
CyrusOne History:
- March 2022: Taken private by funds managed by KKR and Global Infrastructure Partners in an approximately 15 billion dollar all-cash transaction including debt.
- July 2015: Acquired Cervalis, adding four data centers and two disaster recovery sites in the New York metro.
- July 2014: Acquired Cervalis
- January 2013: Completed initial public offering on NASDAQ as a carve-out of Cincinnati Bell’s data center business.
- June 2010: Cincinnati Bell acquired CyrusOne for approximately 525 million dollars.
- 2000: Founded by David Ferdman.