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 BacklashBackground
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.