Northern Virginia

Northern Virginia hosts over 5 GW of operational data-centre capacity, the largest concentration on earth. In late April and early May 2026, all three major DC counties simultaneously tightened their approval environments: Loudoun stripped by-right zoning status; Fairfax added 200-foot residential setbacks, design controls, and noise studies; and the Virginia Court of Appeals overturned Prince William County's fast-tracked 2,000-acre rezoning. Compass Datacenters withdrew its Prince William project. The tightening continued into July: Prince William's Board of Supervisors voted 8-0 to deny the Dulles South Innovation Center, a 1,940-acre, 43-million-square-foot campus, the county's second mega-campus rejection of 2026 after Digital Gateway, this time decided directly by the Board rather than the courts. The region's near-term approval pipeline remains the world's most uncertain despite hosting the world's most operational capacity.

The cluster grew around Loudoun County's data-centre corridor, driven by proximity to mid-Atlantic internet exchange points, Dominion Energy's transmission infrastructure, and historically permissive zoning. Good Jobs First estimates more than $1 billion annually in foregone local tax revenue from data-centre incentive programmes in Virginia. The cluster's growth was accelerated by those abatements; their political sustainability is now in question.

The structural advantage for incumbents is expected to widen. Operators already connected to Dominion territory with approved capacity are strongly positioned. New entrants face a consent environment that has effectively converged with more restrictive processes elsewhere, and now two mega-campus denials in Prince William alone within a year. Capital with site-selection flexibility is being routed to the Nordic countries, West Texas, and Aragon, where the consent-grid-cost combination is currently more favourable.