A free SpecWindow project list. Records checked Oct 26, 2026; they can change after that date.
Wisconsin data center projects in government records, 2026
4 data center projects found in Wisconsin records dated April 26 to October 26, 2026: Wisconsin DNR air permit records for Port Washington and Mount Pleasant, and city plan commission records in Wisconsin Rapids and Milwaukee. 1 gives a generator count, in an issued air permit. Every project links to its government record.
The DNR air permit notice table and the PSC of Wisconsin docket system could not be read automatically, Beaver Dam city records block automated access, Mount Pleasant's agenda center showed nothing after March 2026, and most counties were not checked, so this is a sample of projects, not a complete list.
DC Rapids LLC data center, 950 Fourth Ave. N. (former papermill property)
Wisconsin Rapids, Wood County, Wisconsin
- Record
- City public hearing notice for a conditional use permit and site plan review, posted Aug 28, 2026. wirapids.gov
- Applicant as named
- DC Rapids LLC
- Stage
- Denied or withdrawn: the Planning Commission voted 7 to 0 on Sep 16, 2026 to recommend denial of the conditional use permit (the city's Papermill Redevelopment page says "The Planning Commission denied the application"; vote reported by WSAU), and the Common Council voted to deny it on Oct 20, 2026 (reported by WSAW on Fox 11).
- Equipment stated
- None stated in the records we opened.
Former Midtown Center Walmart, 5825 West Hope Avenue (data processing and computational research facility proposed with self storage)
Milwaukee, Milwaukee County, Wisconsin
- Record
- City Plan Commission minutes, Jul 20, 2026, files 260029 and 260030, after a public hearing on Jun 29, 2026 (agenda). city.milwaukee.gov
- Applicant as named
- Trent Overhue, AFS (named as applicant in the Plan Commission minutes); AFS Milwaukee LLC per BizTimes
- Stage
- Denied or withdrawn: the Plan Commission held the files on Jun 29, 2026 (minutes); the applicant's Jul 1, 2026 revised narrative removed the data processing, computer services and computational research facility use, and on Jul 20, 2026 the commission approved a substitute limited to self storage.
- Equipment stated
- None stated in the records we opened.
Microsoft Mount Pleasant Data Centers, 4800 90th Street
Mount Pleasant, Racine County, Wisconsin
- Record
- Air permit tracking record, Wisconsin DNR: construction permit 25-MIN-113 and operation permit revision 25230249A-F05 decided Jun 12, 2026; operation permit 25230249A-F06 application received Aug 18, 2026 and construction permit application 26-MIN-096 received Oct 23, 2026. apps.dnr.wi.gov
- Applicant as named
- Microsoft Mount Pleasant Data Centers
- Stage
- Operating site, expansion: permits 25-MIN-113 and 25230249A-F05 show as Active with a Jun 12, 2026 decision; two newer applications show as Requested. On Oct 14, 2026 the village Plan Commission approved an amended site plan with seven data center buildings and two substations (reported by WPR).
- Equipment stated
- Permitted: the DNR public notice for 25-MIN-113 covers modification of emergency generators and fire pumps and construction of four fire pumps; generator count and rating not stated. Two substations reported by WPR in the amended site plan.
Vantage WI-1 (Lighthouse campus), Port Washington
Port Washington, Ozaukee County, Wisconsin
- Record
- Air permits issued by the Wisconsin DNR, construction permit 25-MIN-094 and operation permit 24618528A-F01, Jun 12, 2026. dnr.wisconsin.gov
- Applicant as named
- Vantage Data Centers (DNR project page); facility listed as Vantage WI-1 in the DNR permit tracking record
- Stage
- Under construction: the DNR page says the campus is being constructed on 672 acres; air permits issued Jun 12, 2026 after a comment period from Mar 3 to Apr 14, 2026. A related ATC interconnection project is before the PSC (docket 137-CE-221, not readable).
- Equipment stated
- Permitted: 45 diesel fired emergency generators under construction permit 25-MIN-094 (DNR project page; the DNR permit tracking record says up to 45 diesel emergency generators); rating not stated.
Want a current report for Wisconsin or another state? A State Project Scan is a PDF report and Excel spreadsheet of the data center projects found in one state's government records from the last six months, with equipment reported as the underlying record states it: applicant as named, location, stage, next public dates, the buying window and a suggested next research step. Every row links to its government record.
Order a state report, $490See a sample (PDF)One time, no subscription, delivered by email within 5 business days. Questions? Email [email protected].