Dulles South Innovation Center
A proposed 1,940-acre, 43-million-square-foot data-centre campus in Prince William County's Gainesville district, denied by the Board of Supervisors on 7 July 2026.
Last refreshed: 15 July 2026 · Appears in 1 active topic
Timeline for Dulles South Innovation Center
Prince William denies a 43m sq ft campus
Data Centres: Boom and BacklashWhat is the Dulles South Innovation Center?
Why did Prince William County deny the Dulles South campus?
Who proposed the Dulles South Innovation Center?
Background
Prince William County's Board of Supervisors voted 8-0 on 7 July 2026 to deny the Dulles South Innovation Center, a proposed 1,940-acre, 43-million-square-foot data-centre campus in the Gainesville district.
The campus was put forward by developer Sanders Lage Assemblage I LLC on land near Dulles Airport, in a county that already hosts one of the world's densest concentrations of data centres. Supervisors rejected it on Comprehensive Plan and overlay grounds, citing conflicts with the county's own land-use rules for the area.
Supervisors also pointed to risk to the Occoquan watershed, which supplies drinking water to roughly 8 million people in Northern Virginia, as a reason to block the project. The unanimous denial marks one of the largest single hyperscale proposals defeated by a local government to date, and signals that even the region most associated with data-centre growth has limits.
