Data center · Loudoun County, Virginia, United States
Microsoft Leesburg Building 1
Microsoft Leesburg Building 1 is a data center in Loudoun County, Virginia, United States, with a 14,450 m² building, operated by Microsoft.
Facts
Every value links to its source, and to the source's own record where it has one. Licences and last-checked dates are per row.
| Fact | Value | Source |
|---|---|---|
| Location | Loudoun County, Virginia | OpenStreetMap data centers · record · ODbL 1.0 · checked 24 Oct 2026 Virginia DEQ issued data center air permits · Public records · checked 24 Oct 2026 |
| Address | 19515 Compass Creek Parkway, Leesburg, VA 20175 | OpenStreetMap data centers · record · ODbL 1.0 · checked 24 Oct 2026 Virginia DEQ issued data center air permits · record · Public records · checked 24 Oct 2026 |
| Permit date | 7 Mar 2025 (permit 74220-4, Article 6 - mNSR) | Virginia DEQ issued data center air permits · record · Public records · checked 24 Oct 2026 |
| Operator | Microsoft | OpenStreetMap data centers · record · ODbL 1.0 · checked 24 Oct 2026 Virginia DEQ issued data center air permits · record · Public records · checked 24 Oct 2026 |
| Building footprint | 14,450 m² (building) | OpenStreetMap data centers · record · ODbL 1.0 · checked 24 Oct 2026 |
| Coordinates | 39.0748, -77.5641 | OpenStreetMap data centers · record · ODbL 1.0 · checked 24 Oct 2026 |
Research on this data center and its operator.Who owns it up to the parent company, its power supply, grid connection and planning status, and an introduction to the operator.
Request researchAlso recorded as
2 sources record Microsoft Leesburg Building 1; this page joins their facts, each with its own source. Links to any of the records lead here. How records are matched.
| Name in the source | Identifier | Source | Matched on |
|---|---|---|---|
| Microsoft Leesburg Building 1 | asset:osm:way-886330269 | OpenStreetMap data centers | — |
| Microsoft Corp - Leesburg Data Center (IAD01-02-03-04-05) | asset:va-deq:74220 | Virginia DEQ issued data center air permits | Same street address and operator |
How its operator compares
Microsoft owns 66 of the 1,336 data centers in the United States in our data with a named owner; 2 owners have more. Counts cover the data centers in our data that name an owner, holder or operator; an asset with several owners counts for each.
| Operator in United States | Rank | Data centers | Share |
|---|---|---|---|
| Amazon Web Services | 1st | 149 | 11% |
| Digital Realty | 2nd | 87 | 6.5% |
| Microsoft | 3rd | 66 | 4.9% |
| Amazon Data Services Inc. | 4th | 60 | 4.5% |
| 5th | 58 | 4.3% |
Timeline
Dated facts about this data center from its sources, oldest first.
- Air permit to build issued (minor new source review), no. 74220-4
- Microsoft on record as operator
Nearby
Within 50 km of this data center: 3 mines and 2 power plants (1 operating, 812 MW), measured from the coordinates in the facts above.
| Name | Kind | Size | Status | Distance |
|---|---|---|---|---|
| Potomac Energy Center, LLC | Power plant | 812 MW | Operating | 2.5 km |
| Dulles Solar and Storage | Power plant | 150 MW | Under construction | 15 km |
| Chantilly Crushed Stone Incorporated | Mine | — | Operating | 18 km |
| Amrize Millville Quarry | Mine | — | Operating | 31 km |
| Winchester Plant | Mine | — | Operating | 49 km |
Operator and place
More from Microsoft
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- Microsoft Project Osmium190 MW
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- Microsoft-Nebius New Jersey50 MW
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Other data centers in Virginia
Data on this page
- Source: U.S. Energy Information Administration (Sep 2026). EIA-860 / 860M / 923, Public domain.
- Epoch AI. Epoch AI data centers, CC BY 4.0.
- MSHA Mines Data Set. MSHA Mines Data Set, Public domain.
- © OpenStreetMap contributors. OpenStreetMap data centers, ODbL 1.0.
- Texas Comptroller qualifying data centers. Texas Comptroller qualifying data centers, Public domain.
- Virginia DEQ issued data center air permits. Virginia DEQ issued data center air permits, Public records.