Belmont Innovation Campus, Ashburn
approved CampusOperated by Belmont Holdings I, LLC
The Loudoun County Board of Supervisors voted on April 10, 2024 to approve the Belmont Innovation Campus application, converting the 111-acre site southwest of Route 7 off Belmont Ridge Road to allow 1.3 million square feet of data center use with committed environmental protections and design standards. Virginia DEQ subsequently issued Belmont Holdings I, LLC an air permit (Registration No. 74321) on January 28, 2026 covering 96 emergency diesel gen-sets rated 3,500 ekW each (48 Caterpillar C175-20 and 48 Cummins QSK95-G9 units), all with selective catalytic reduction.
Land use jurisdiction: Loudoun County
Measurements on record
Permitting path
Approvals on record for 2 of 11 path steps; latest: DEQ air permit (generators) (2026-01-28).
Virginia's sequence runs through county land-use case records to DEQ air permits; rezonings and special use permits are the public record spine, and DEQ publishes the data-center air permit register.
| Date | Step | Authority | Instrument | Status |
|---|---|---|---|---|
| 2024-04-10 | Special use permit / site plan | Loudoun County | Board of Supervisors approval of the Belmont Innovation Campus land use application, April 10, 2024
Board of Supervisors approval of the Belmont Innovation Campus land use application, April 10, 2024 (original) |
on record |
| 2026-01-28 | DEQ air permit (generators) | Virginia Department of Environmental Quality | Article 6 minor NSR permit to construct and operate, Registration No. 74321
Article 6 minor NSR permit to construct and operate, Registration No. 74321 (original) |
on record |
| Site control (deed or lease) | not yet requested | |||
| Rezoning applies where the site's zoning does not already allow the use |
Loudoun County | not yet requested | ||
| Natural gas service applies where the facility uses natural gas |
not yet requested | |||
| Utility interconnection (PJM queue) | not yet requested | |||
| Sewer service commitment | not yet requested | |||
| Water service commitment | not yet requested | |||
| Building permit | Loudoun County | not yet requested | ||
| Stormwater (VSMP permit) applies where land disturbance passes permit thresholds |
Virginia Department of Environmental Quality | not yet requested | ||
| Public agreements and incentives applies where negotiated with the host jurisdiction |
Loudoun County | not yet requested | ||
| Go-live | not yet live |
Steps without a record are shown as not yet requested or not on record: absence of a record here is a records gap, not a finding about the facility. An authority shown for an empty step is the body that would issue it. Some authorities are shown before any record exists, from mapped utility service areas or, for sewer service, from municipal limits; these carry a marker naming the basis.
Site control comes first in every path: a proponent must hold a deed, lease, or purchase option on every parcel of the site before it can apply. Parcel and ownership records have not yet been pulled for this facility.
About this path and the law behind each step: the law on record for this jurisdiction
Location and sources
Ashburn, Loudoun County, Virginia
Every record links to its source: public records, press reporting, and openly licensed datasets including Epoch AI, Wikidata, and US EPA. Full sourcing and per-source licensing: methodology · sources.