• Loudoun supervisors voted 7-1-1 to draft a 12-month pause on legislative data-centre and substation applications
  • The proposal targets applications requiring board action while existing and grandfathered development follows separate approval paths

The fact

Loudoun County's Board of Supervisors voted 7-1-1 on 15 September to direct staff to draft a resolution pausing consideration of certain legislative data-centre and substation applications for up to 12 months. Supervisor Kristen Umstattd voted against the motion and Caleb Kershner abstained. The board is expected to consider the resolution at its 20 October business meeting.

County Attorney Leo Rogers advised that a blanket data-centre moratorium is not permitted under Virginia law. Loudoun's own guidance says rezoning and special-exception applications must be considered individually. The proposed pause therefore focuses on legislative applications requiring board action rather than stopping all data-centre development. Loudoun eliminated by-right approval for new data centres in 2025, although qualifying older applications remain covered by a grandfathering resolution.

The assessment

The pause divides Loudoun's development pipeline by approval stage. A project that still needs rezoning or a special exception can be held at the legislative stage while the county rewrites its rules. A project that is already entitled, under construction or proceeding through an eligible grandfathered administrative route is in a different position.

That distinction matters because Loudoun already has far more capacity in development than the pause itself can stop. As of March, the county counted 233 data-centre buildings built or under construction and another 35.7 million square feet of approved data-centre use not yet built.

For BTW readers, this is not a countywide stop to data-centre construction. It changes the timetable for projects that still depend on a Board of Supervisors decision, while leaving much of the existing construction and approved pipeline outside the immediate reach of the pause.

What to watch

Watch the 20 October vote for the final scope, exemptions and effective date. The larger consequence will come from Loudoun's Phase 2 rules on setbacks, noise and substations. Those standards will determine what future applications must change before they can move through the legislative process again.