SDC Belmont Innovation Campus Data Center

Under Construction

Profile scope: Campus
Address: 19570 Hyperspace Lane, Ashburn, VA
Owner: Belmont Holdings I, LLC · Loudoun Prop 1, LLC · Loudoun Prop 2, LLC

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SDC Belmont Innovation Campus Data Center

Under Construction

Profile scope: Campus
Address: 19570 Hyperspace Lane, Ashburn, VA
Owner: Belmont Holdings I, LLC · Loudoun Prop 1, LLC · Loudoun Prop 2, LLC

Belmont Innovation Campus is a data center campus on about 111 acres off Belmont Ridge Road in Ashburn, Loudoun County, Virginia. The county Board of Supervisors approved up to 1.3 million square feet of data center use in April 2024. Core and shell construction of Building 3 was permitted in January 2026, and an industry event described the campus as taking shape in September 2026. Dominion Energy is expected to serve the load. The sources reviewed do not give a megawatt capacity for the approved campus.

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Overview

Campus power: Not disclosed; No exact-site MW figure in cited sources.
Status: Under Construction; Under Construction
IT floor area: Not disclosed; Campus

Project scope: Approved for 1.3 million square feet of data center uses on a 111-acre site
Power and grid: No exact-site power capacity has been disclosed. Reported utility context: Dominion Energy Inc.
Cooling and environment: Asset-specific cooling design and water demand are not disclosed.

Buildings 3 and 4

County engineering plan approved for the first two buildings

Buildings 1, 2 and 5

Three further data center buildings in county plan review

Power and grid

Utility: Dominion Energy Inc
ISO / RTO: PJM
Substation: Campus substation under site plan EPLAN-2023-0056; a site plan amendment revises grading and access road
Backup generation: Air permit covers emergency diesel engine generator sets GEN-1 through GEN-192

Facility and development

Construction: Approved for 1.3 million square feet of data center uses on a 111-acre site
Air permits: Virginia DEQ stationary source permit to construct and operate emergency generator sets, approved 9/28/2026
Permits and dockets: Loudoun County Board of Supervisors approval of LEGI-2023-0048, Belmont Innovation Campus · Engineering plan EPLAN-2024-0061, Buildings 3 and 4, revised to increase the number of emergency generators · Campus substation site plan EPLAN-2023-0056

Grid record: Dominion Energy Inc · PJM · Campus substation under site plan EPLAN-2023-0056; a site plan amendment revises grading and access road
Regulatory record: Loudoun County Board of Supervisors approval of LEGI-2023-0048, Belmont Innovation Campus · Engineering plan EPLAN-2024-0061, Buildings 3 and 4, revised to increase the number of emergency generators · Campus substation site plan EPLAN-2023-0056