11 data center projects in Unincorporated Loudoun County
Who decides here: the Loudoun County Board of Supervisors decides on zoning for land outside city and town limits.
In Unincorporated Loudoun County
Amazon Bridgefield Tech Center (former GW Virginia campus, Ashburn)
Loudoun County, Loudoun County
122 acres Β· for Amazon Web Services
π July 28, 2026: Amazon filed a first plan for four data center buildings (805,092 square feet).
ProposedB.F. Saul data centers on Shaw Road (Sterling)
Loudoun County, Loudoun County
37.24 acres
π Sept 2026: Loudoun Planning Commission voted against the rezoning.
ProposedCochran Tech data center (Cochran Mill Road, near Leesburg)
Loudoun County, Loudoun County
π May 5, 2026: Board voted 6-1-1 to reconsider and send the plan back to the Planning Commission.
ProposedPrologis Concorde Industrial Park data center conversion (Sterling)
Loudoun County, Loudoun County
17 acres
π Feb 11, 2026: Board of Supervisors held its review of the rezoning.
Approved, not built yetCross Mill Center data center (near Leesburg Executive Airport)
Loudoun County, Loudoun County
22 acres
π July 15, 2025: Board of Supervisors approved the rezoning 5-4.
Approved, not built yetGreenlin Park data center campus (Dulles Greenway, south of Leesburg)
Loudoun County, Loudoun County
83 acres
π Feb 19, 2025: Board of Supervisors approved the rezoning.
ProposedQuantum Park data centers (Ashburn)
Loudoun County, Loudoun County
40 acres
π April 15, 2026: Supervisors moved the plan to a May 19 vote; several said they would vote no.
Approved, not built yetBelmont Innovation Campus (Belmont Ridge Road)
Loudoun County, Loudoun County
112 acres
π April 10, 2024: Board approved a 1.3 million-square-foot version, 6-3.
ProposedActive Infrastructure campus on Evergreen Mills Road
Loudoun County, Loudoun County
325 acres
π July 23, 2026: Planning Commission held a hearing and voted against the rezoning.
ProposedSTACK Infrastructure 144 MW Loudoun campus
Loudoun County, Loudoun County
π Feb 11, 2025: STACK announced the 144 MW campus.
Reported in the news, not confirmed yet
Being builtEdgeCore AS01 and AS02 data centers (Sterling)
Loudoun County, Loudoun County
π April 2026: EdgeCore secured $1.5 billion in loans to build AS01 and AS02.
Reported in the news, not confirmed yet
Nearby (within 15 miles)
Oaklawn data center (Land Bay A, Leesburg)
Leesburg, Loudoun County
26.4 acres
π July 2025: Developer sued the town over the denial.
Proposedabout 5 miles awayLeesburg Gateway data center plan (Peterson Companies)
Leesburg, Loudoun County
107 acres
π Jan 26, 2026: Town Council cancelled its public hearing at the developer's request.
Local votes and rules
π Other
Supervisors voted unanimously to ask staff for a legal analysis of ending the 2025 grandfathering rule, due at the October 6, 2026 board meeting. Until the board acts, the rule stays in effect.
βΈοΈ Pause on new data centers
Supervisors voted 7-1 to pause new data center applications for 12 months while the county rewrites its data center rules. The county attorney had warned that true moratoria are rarely allowed in Virginia.
πΊοΈ Zoning change
Supervisors voted 7-2 to end by-right data centers. New data centers now need a 'special exception', with public hearings before the planning commission and the board.
π Other
On the same night, supervisors voted 5-4 to 'grandfather' data center applications already in review, so they can still be approved by staff without a public hearing. In September 2026, 17 such applications (about 11 million square feet) were still in review.
β Approved
Supervisors voted 5-4 to rezone 83 acres south of Leesburg along the Dulles Greenway for JK Land Holdings' Greenlin Park: up to 1.4 million square feet of data centers with a 55-foot height limit, noise limits and a 300-megawatt power cap for five years.
What you can do
- Get told first.
We'll email you if anything changes in Unincorporated Loudoun County. - Go to county meetings.
Anyone can speak. Big projects usually need a public hearing. - Ask questions in writing.
Use our checklist.
π Get told first
β‘ Your electric company
Depending on where you live in Unincorporated Loudoun County: Virginia Electric & Power Co. (company) or Northern Virginia Electric Co-op (co-op (owned by its members)).
Big data centers need a lot of power. Who pays for new power lines depends on state rules. See the rules in Virginia.
π Open tasks here
- Will this plan need a public hearing or a Board of Supervisors vote?
- How much power and water would the four buildings need?
- Will new power lines or a substation be needed?
- When will the Board of Supervisors vote?
- Where would the separate substation the company wants be built?
- Who is the developer?
- When will the plan return to the Planning Commission and the board?
- Did the Board of Supervisors approve or deny the rezoning?
- Who will use the data center?
- How much power will it need, and from which substation?
- Who will use the data center?
- Has construction started?
- What did supervisors decide on May 19, 2026?
- Who will use the campus, and has construction started?
- Will the Board of Supervisors vote on it, or will the developer withdraw?
- Exactly where is the campus?
- Has construction started?
- Who are the tenants?