SIGNALDATAInsights. For the People. Preview
Data center campus · Bilter Road at Interstate 88, Aurora, DuPage County, Illinois

CyrusOne Bilter Road campus (Aurora)

Under construction as of Oct. 2024

A two-building CyrusOne expansion on a roughly 32-acre parcel on Bilter Road across I-88 from its existing Aurora campus, under construction since late 2024. Also known as: CHI9.

Cite← Illinois data centers
Adams CountyAlexander CountyBond CountyBoone CountyBrown CountyBureau CountyCalhoun CountyCarroll CountyCass CountyChampaign CountyChristian CountyClark CountyClay CountyClinton CountyColes CountyCook CountyCrawford CountyCumberland CountyDe Witt CountyDeKalb CountyDouglas CountyDuPage CountyEdgar CountyEdwards CountyEffingham CountyFayette CountyFord CountyFranklin CountyFulton CountyGallatin CountyGreene CountyGrundy CountyHamilton CountyHancock CountyHardin CountyHenderson CountyHenry CountyIroquois CountyJackson CountyJasper CountyJefferson CountyJersey CountyJo Daviess CountyJohnson CountyKane CountyKankakee CountyKendall CountyKnox CountyLake CountyLaSalle CountyLawrence CountyLee CountyLivingston CountyLogan CountyMacon CountyMacoupin CountyMadison CountyMarion CountyMarshall CountyMason CountyMassac CountyMcDonough CountyMcHenry CountyMcLean CountyMenard CountyMercer CountyMonroe CountyMontgomery CountyMorgan CountyMoultrie CountyOgle CountyPeoria CountyPerry CountyPiatt CountyPike CountyPope CountyPulaski CountyPutnam CountyRandolph CountyRichland CountyRock Island CountySaline CountySangamon CountySchuyler CountyScott CountyShelby CountySt. Clair CountyStark CountyStephenson CountyTazewell CountyUnion CountyVermilion CountyWabash CountyWarren CountyWashington CountyWayne CountyWhite CountyWhiteside CountyWill CountyWilliamson CountyWinnebago CountyWoodford CountyCyrusOne Bilter Road campus (Aurora) · Under construction
PowerNot statedNot reported in the records found
Floor area561,000sq ft
Site32acres

Who is behind it

ProjectCyrusOne Bilter Road campus (Aurora)Also: CHI9
Developer and teamCyrusOne
End userNot found in the recordsNot yet named in any record or credited report we have found.

The record, newest first

  1. Construction began on the Bilter Road buildings, according to Data Center Dynamics. (Data Center Dynamics, May 21, 2025)

  2. Plans filed with Aurora showed two buildings of about 411,000 and 150,000 square feet on 32 acres in the Butterfield planned development, plus telecom towers. (Connect CRE, June 4, 2024)

  3. CyrusOne was negotiating with Aurora over a 30-acre Bilter Road parcel where data centers had been barred; the city sought to recover up to $11 million it had spent on a nearby highway interchange, plus hotel revenue it would forgo. (Bisnow, Jan. 30, 2024)

Conflicts and open questions

  • No MW figure in any opened source; site is under 100 acres. Kept as a confirmed campus under construction.
  • Connect CRE and Data Center Dynamics place the parcel in Kendall County, which does not reach the I-88 corridor. Bisnow puts the site directly across I-88 from the existing Diehl Road campus; the Census geocoder places that stretch of Bilter Road in DuPage County (Bilter Road west of roughly the 2500 block is in Kane County). County set to DuPage; confirm against the parcel record.
  • Treating the CyrusOne 'CHI9' Aurora listing and the DCEO 'Aurora III' entity as this site is likely but not confirmed by a record.
  • Coordinates approximate, Bilter Road north of I-88 in Aurora.

The full record

Evidence
News reports; primary records not yet obtained
Size class
Under 50 MW (outside main scope; kept for completeness)
Map position approximate, from the reported address or area. Updated Oct. 17, 2026.