This is a source-attributed discovery row. It can help you find a place and its citations; it is not a DataCenterData finding that the facility is distinct or currently operating.
Facility snapshot
- Operator as published
- CloudHQ
- Address and locality
- Mount Prospect · Cook County · Illinois
- Lifecycle status
- reported under construction
- Facility type
- data center
- Reported capacity
- Not stated
- Source freshness
- 10 September 2026
- Location precision
- approximate
- Source confidence
- confirmed
- Stable directory ID
dcd-dir-000258
What the source record says
$2.5B, ~1.5 million sq ft across three two-story hyperscale buildings (each >80 MW) on a 49.7-acre site; ComEd grid partnership. Update: the village board approved a revised plan (~Oct 2025) consolidating the original three two-story buildings into two three-story buildings plus a second electrical substation, superseding the building-count description above; confirmed delivery targets are the first building in 2027 and the second by end of 2030. As of July 2026, CloudHQ was mid-permitting the revised design (~3,700 drawing sheets, 1,500+ pages of structural calcs); the village hired outside firm HR Green to review it. Construction is active, with cranes on the fenced 50-acre site as of January 2026. Public-reception check (2026-09-10): Could not get past a paywall/block for the Daily Herald's Mount Prospect coverage or the original CloudHQ groundbreaking press release (both 403'd). Notable circumstantial signal: the Village of Mount Prospect maintains its own dedicated 'Community Information and Fact Check Portal' page specifically for this project (URL found via search, itself 403'd on fetch), which typically indicates the village has been fielding enough resident questions/concerns to warrant an official FAQ/rebuttal page -- but I could not retrieve its actual content, so I am not asserting a status from an inference I couldn't verify. Also found (via search, not independently fetched) reporting that Illinois data-center opposition broadly 'escalates' statewide and that the village sought outside help on Biometric Information Privacy Act (BIPA)-related permitting questions, neither of which I could confirm as specific to community opposition at this site. Reporting 'unknown' rather than guessing.
Any MW value is reproduced as source-reported context. Its measurement boundary is not established consistently enough for comparison. Unknown is not zero.
Status history supplied by the source
- 2022-08 · reported under construction
Groundbreaking with ComEd on hyperscale campus
- 2025-10 · reported under construction
Village board approved a revised plan consolidating the original three two-story buildings into two three-story buildings plus a second electrical substation. First building targeted for 2027, second for end of 2030.
- 2026-07 · reported under construction
Mid-permitting the revised design (~3,700 drawing sheets, 1,500+ pages of structural calcs); village hired outside firm HR Green to review it. Cranes active on the fenced 50-acre site as of January 2026.
Sources and attribution
- CloudHQ breaks ground on 1.5 million sq ft campus in Mount Prospect, Illinois · DatacenterDynamics
- CloudHQ Breaks Ground on $2.5 Billion Chicago Data Center Campus · Data Center Frontier
- ComEd joins with CloudHQ to build $2.5B data center in northern Illinois · Daily Energy Insider
- Mount Prospect data center developer prepared to donate $3 million for recreation, street upgrades · Daily Herald
- Mount Prospect hires outside firm to handle data center permitting · Daily Herald
Adapted from Compute Atlas by Edward Kubiak, edition 1.33.0, under CC BY 4.0. Upstream ID cloudhq-mount-prospect-ord-il. Filtered to data-center records in the 50 U.S. states; selected fields normalized for search and display; DataCenterData directory IDs added.
This does not mean the row is wrong. It means DataCenterData has not promoted it through the independent evidence workflow.