The Microsoft EKI Campus

Granger ground, Mishawaka services; state as of November 2026

The boundary, printed first: The largest development in Mishawaka's orbit does not stand in Mishawaka. Microsoft's EKI Campus — some 929 acres of the former St. Joe Farm at Bittersweet and Cleveland Roads, addressed by the state permit record at 12501 Cleveland Road, Granger — stands on unincorporated county ground northeast of the city, in the place this record treats as its own later build. Trade accounts that speak loosely of Microsoft's "939 acres in Mishawaka" print the area's name for the county's ground; the county's own record puts the site in Granger, and this section follows the county. What is Mishawaka's, and documented, is the servicing: the City of Mishawaka will provide the campus's water and sewer under its agreement with the county, with Microsoft paying for the extensions and upgrades — spoken of at up to $60 million in utility improvements, all at the company's cost — and the mayor of Mishawaka claims the project for his city's future in his own addresses, at claim strength: roughly 300 jobs and billions in investment, in his 2025 telling.

Its November 2026 state: The campus is planned for six data-center buildings among several hundred acres of green zone, and its documented state at this section's closing is permits and ground preparation, not buildings: as of the county's update of 17 February 2026 no general contractor had been selected; on 2 November 2026 the St. Joseph County Drainage Board approved the project's temporary groundwater dewatering plan — up to 200,000 gallons an hour into Willow Creek and Juday Creek, from three wells working in turn between mid-December 2026 and early April 2027; and the Indiana Department of Environmental Management's draft air permit for the campus — a new-source construction and operating permit, FESOP No. F 141-50527-00655 — stands open for public comment from 26 October to 25 November 2026. The project is the fastest mover in this section: its next documented states all fall within weeks of the closing date below.

Sources:

1. Indiana Department of Environmental Management — public notice for Microsoft EKI Campus, 12501 Cleveland Road, Granger (the 30-day comment period, 26 October–25 November 2026; FESOP No. F 141-50527-00655).
2. South Bend Tribune, 20 February 2026 — the county's project update of 17 February 2026 (the 929-acre site bought June 2024 and the 40 acres added 2025; no abatements sought; no general contractor selected; Mishawaka water and sewer by agreement; utility improvements spoken of at up to $60 million, company-paid; 250–300 acres of conservation ground).
3. St. Joseph County Drainage Board, 2 November 2026, as reported 3 November 2026 — the dewatering approval (200,000 gallons an hour; three wells in turn, mid-December 2026 to early April 2027; six data-center buildings planned).
4. City of Mishawaka — the mayor's State of the City address, April 2025 (the campus spoken of as a potential site purchased by Microsoft; roughly 300 jobs and billions in investment, as the mayor's claims).