Cyrusone Sterling Ix/X/Xi
43290 OLD OX ROAD
Parcel boundary
Recorded as in service.
- Status
- Operating
- Owner
- CyrusOne
- Capacity
- not stated
- Location known to
- Parcel boundary
- County
- Loudoun County
- State
- Virginia
- Electric utility
- Not identified
- Grid operator
- PJM
Location and nearby
Cyrusone Sterling Ix/X/Xi is on record as operating in Loudoun County, Virginia. 398 other campuses are on record within 25 miles, 153 of them within 5 miles. The nearest is 0.32 mi away.
Nearest of each kind: Operating 0.41 mi Under construction 1.5 mi Permitted 1.3 mi Proposed 0.32 mi
Nearest campuses on record
- 0.32 mi
Loudoun County VA GIS: pipeline (proposed) data center areas #26
Proposed · Loudoun County, VA
- 0.40 mi
Proposed · Loudoun County, VA
- 0.41 mi
Operating · Loudoun County, VA
- 0.42 mi
Proposed · Loudoun County, VA
- 0.52 mi
Operating · Loudoun County, VA
- 0.75 mi
Digital Realty Northern Virginia IAD44
Operating · Loudoun County, VA
What is on record
Owner
CyrusOne Strong
The chain
-
permittee name as filed with EPA
CYRUSONE STERLING IX/X/XI
EPA ECHO Exporter, all facilities (weekly refresh) · Sep 6, 2026
Filed by: CYRUSONE STERLING IX
- Address on file
- 43290 OLD OX ROAD
- Capacity
- not stated
- Building area
- 691,656 sq ft
- Diesel generators
- Air permit on record VA0000005110774173
- Water
- Not collected. State water withdrawal permits are not in this build.
- Electric utility
- More than one utility serves this county, and no filing we hold names which one
- Also recorded as
- C1 NORTHERN VIRGINIA - STERLING IX LLC · CYRUSONE · CYRUSONE STERLING IX/X/XI · CyrusOne · CyrusOne LLC · CyrusOne NVA10 and 10 more
Buildings and phases
9 distinct buildings, parcels or permits make up this campus.
| Name or address | Status | Permit | Area | Date |
|---|---|---|---|---|
| Dulles Trade Center II | Operating | not stated | not stated | Sep 8, 2026 |
| Cyrusone | Operating | B90254180100,B10462030100,BLDC-2025-012490 | 691,656 sq ft | Sep 8, 2026 |
| Data center at 43290 OLD OX RD | Operating | B90254180100 | 305,156 sq ft | Nov 19, 2020 |
| Data center at 43304 OLD OX RD | Under construction | BLDC-2025-012490 | 161,000 sq ft | Jul 7, 2025 |
| Data center at 43294 OLD OX RD | Operating | B10462030100 | 225,500 sq ft | Dec 27, 2021 |
| Data center at 43290 OLD OX RD | Permitted | not stated | not stated | Aug 16, 2024 |
| Unnamed data center (way/1544104138) | Operating | not stated | not stated | Jul 24, 2026 |
| CyrusOne Sterling IX | Operating | not stated | not stated | Dec 20, 2024 |
| Data Center - 2020 BP (5.74 Acres) | Operating | not stated | not stated | Sep 8, 2026 |
How the status changed
- Operating Nov 19, 2020
Loudoun County VA GIS: existing and permitted data center buildings: BUILT
Loudoun County VA GIS: existing and permitted data center buildings
- Operating Dec 27, 2021
Loudoun County VA GIS: existing and permitted data center buildings: BUILT
Loudoun County VA GIS: existing and permitted data center buildings
- Permitted Aug 16, 2024 inferred
Northern Virginia Regional Commission: data centers: Existing or Permitted
- Operating Dec 20, 2024 inferred
osm footprint
Overpass data_center query, tile conus-e1 bbox 24.0,-85.0,50.0,-75.0
- Under construction Jul 7, 2025
Loudoun County VA GIS: existing and permitted data center buildings: UNDER CONSTRUCTION
Loudoun County VA GIS: existing and permitted data center buildings
- Operating Jun 18, 2026 inferred
DCE status 'operating'
- Operating Jul 24, 2026 inferred
osm footprint
Overpass data_center query, tile conus-e1 bbox 24.0,-85.0,50.0,-75.0
- Operating Sep 8, 2026 inferred
Loudoun County VA GIS: parcels in data center land use (by-right): Data Center
Loudoun County VA GIS: parcels in data center land use (by-right)
- Operating Sep 8, 2026
Loudoun County VA GIS: existing data center parcels: BUILT/UNDER CONSTRUCTION Existing
- Operating Sep 8, 2026 inferred
Loudoun County VA GIS: data center building outlines: Data Centers Building Outlines_08-14-2024/Existing Data Cent
- Operating Sep 8, 2026 inferred
Cleanview status 'Operating'
Cleanview state pages: facility markers (id, name, coordinates, status, MW, county)
- Proposed Sep 8, 2026 inferred
Cleanview status 'Planned'
Cleanview state pages: facility markers (id, name, coordinates, status, MW, county)
- Permitted Sep 6, 2026
epa air permit active
About this data
Evidence
Primary record
A government filing, a federal permit, an assessor parcel or the operator’s own page.
Location known to
Parcel boundary
Matched to an assessor parcel, so the boundary is the parcel.
Independent sources
5
assessor parcel, directory, federal permit, government record, osm footprint. Directories count once between them, because they copy each other.
Spotted something wrong? Tell us and we will fix it.
Where this comes from
14 source records back this page. Each row is a document we retrieved and kept, so a claim can be checked against the original.
| Document | Role | Row | Date |
|---|---|---|---|
| Loudoun County VA GIS: parcels in data center land use (by-right) US-VA-Loudoun | Primary | OBJECTID=2021 | Sep 8, 2026 retrieved by us |
| Loudoun County VA GIS: existing data center parcels US-VA-Loudoun | Primary | OBJECTID=36 | Sep 8, 2026 retrieved by us |
| EPA ECHO Exporter, all facilities (weekly refresh) US | Primary | REGISTRY_ID=110070683710 | Sep 6, 2026 last changed on the server |
| Loudoun County VA GIS: existing and permitted data center buildings US-VA-Loudoun | Primary | OBJECTID=116 | Sep 8, 2026 retrieved by us |
| Loudoun County VA GIS: existing and permitted data center buildings US-VA-Loudoun | Primary | OBJECTID=218 | Sep 8, 2026 retrieved by us |
| Loudoun County VA GIS: existing and permitted data center buildings US-VA-Loudoun | Primary | OBJECTID=224 | Sep 8, 2026 retrieved by us |
| Northern Virginia Regional Commission: data centers US-VA | Primary | OBJECTID=210 | Sep 8, 2026 retrieved by us |
| Overpass data_center query, tile conus-e1 bbox 24.0,-85.0,50.0,-75.0 US | Primary | osm=way/1544104138 | Jul 24, 2026 stated in the file |
| Overpass data_center query, tile conus-e1 bbox 24.0,-85.0,50.0,-75.0 US | Primary | osm=way/990537858 | Dec 20, 2024 stated in the file |
| Loudoun County VA GIS: data center building outlines US-VA-Loudoun | Primary | OBJECTID=124 | Sep 8, 2026 retrieved by us |
| Cleanview state pages: facility markers (id, name, coordinates, status, MW, county) US | Primary | id=2654 | Sep 8, 2026 retrieved by us |
| Cleanview state pages: facility markers (id, name, coordinates, status, MW, county) US | Primary | id=2655 | Sep 8, 2026 retrieved by us |
| dce tracker export (© DataCentersExposed contributors, datacentersexposed.com, ODbL 1.0. Contains data © OpenStreetMap contributors.) US | Primary | slug=cyrusone-sterling-ix-osmway-990537858 | Jun 18, 2026 last changed on the server |
| Virginia statewide parcels (VGIN) (point queries) US-VA assessor parcel 124369522000, owner of record None, match pin_on_facility | Corroborating | query=38.95866,-77.50508 | Sep 9, 2026 retrieved by us |
Cleanview (cleanview.co) © DataCentersExposed contributors, datacentersexposed.com, ODbL 1.0. Contains data © OpenStreetMap contributors.
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