Data center profile · 9590 Hornbaker Road, Manassas, Prince William County, Virginia

STACK Infrastructure NVA02 (Manassas)

STACK's campus in Manassas, Virginia, partly in service, planned for up to 420 MW; expansion rezoning denied Sept. 2025, county now re-running it.

Partly operating. STACK reported a two-building first phase delivered by Oct. 2021; Epoch AI tracker estimates one building and 85 to 118 MW running as of Feb. 2026. The expansion parcels were denied Sept. 2025; the county's rezoning is initiated, not adopted.
420 MW
campus scale the company advertises
company says; not an IT-load or utility-filed figure
10 buildings
planned in the Dec. 2023 expansion release
seven were planned in Dec. 2022
125 acres
announced site in 2020
press later cites 200+ acres
OperatorSTACK Infrastructure (owned by Blue Owl Capital per June 2025 press)
CustomerNot named; company said the campus was fully leased as of May 2021 (press)
Planned IT capacity336 MW at full build-out (our estimate from the company's 420 MW campus power figure)
First building in serviceIn service since Aug. 2021 (about 85 MW of IT capacity live, estimated)
Next stepBoard vote to adopt the county's rezoning of the Nokesville Road parcels, including the three denied expansion lots (no date published)
Power

Power and the grid

Contracted, size not disclosed

Dedicated on-site substationPlanned
300 MW
substation capacity per company (Dec. 2022), not contracted load; press later cites two such substations Company · Oct. 2026
Proposed
Other sources, size not disclosed

Getting on the grid

Who supplies what, what it costs, and what is still not public.

  1. Jan. 22, 2020
    Substation planned from the start
    STACK's announcement plans an on-site dedicated substation for a campus above 250 MW. Company · Oct. 2021
  2. Dec. 13, 2022
    300 MW substation described
    After a 74-acre purchase the company says the site will include a 300 MW on-site substation fed by NOVEC. Company · Dec. 2022
  3. Dec. 7, 2023
    NOVEC named as supplier
    The company says the entire campus has committed NOVEC power through its on-site substations. Company · Dec. 2023
  4. Not set
    Contract terms not public
    Term, minimum billing and termination of the NOVEC service are not stated in any public document. Company · Dec. 2023
Permits

Permits checklist

2 denied · 1 pending · 2 granted · 1 checked, nothing on file

Approvals this campus needed or now needs, and what the records show.

Risks

What could slow it down

Money

Money on record

74 acres
bought in Dec. 2022
company says it adds 100 MW to a 250 MW campus; price not disclosed Company · Dec. 2022
25 acres
bought in May 2021
room for up to two 36 MW buildings (press); price not disclosed News report · May 2021

Not on record: Dec. 2023 expansion land from Youth For Tomorrow: undisclosed, adjacent nonprofit parcel, the later rezoning for the Bristow lots was denied Company · Dec. 2023; tax abatements or incentives: no county incentive agreement appears in the records Local government · Oct. 2026

Timeline

What happened, and what is due

SitePaper trailConstructionPowerPermitsMoneyLegalUpcoming
  1. Jan. 22, 2020
    Site STACK and Peterson Companies announce a 125-acre campus: more than 250 MW at full build, 72 MW first phase. Company · Jan. 2020
  2. Aug. 2021
    Power First building, 227,000 sq ft, inaugurated (press, citing the company). News report · Oct. 2021
  3. Oct. 26, 2021
    Power Two-building first phase reported delivered; second phase of 36 MW growing to 72 MW breaks ground. Company · Oct. 2021
  4. Dec. 13, 2022
    Site STACK buys 74 more acres and says the campus grows to 350 MW. Company · Dec. 2022
  5. Dec. 7, 2023
    Site A third land purchase from Youth For Tomorrow lifts the plan to ten buildings. Company · Dec. 2023
  6. Sept. 9, 2025
    Permits The Board of Supervisors rejects the Bristow Campus rezoning and special use permit, 4 to 2. News report · Sept. 2025
  7. June 9, 2026
    Permits Supervisors direct staff to prepare a county rezoning of the Nokesville Road parcels. Local government · Oct. 2026
  8. Sept. 1, 2026
    Permits The Board initiates the county rezoning of about 55 acres with no proffer conditions. Local government · Oct. 2026
  9. Oct. 6, 2026
    Permits Initiation is widened to add the three denied Bristow lots, about 58 acres (a packet action, not a recorded vote). Local government · Oct. 2026
  10. 2028
    Power Epoch AI's estimated full build-out date (estimate; no company target on record).
Construction activity

Building activity by quarter

Since July 2021: 35 building permits (28 issued or finished, 7 withdrawn or expired); the largest lists a $40M job value; 22 FAA filings (Jan. 2022 to Nov. 2025): tallest permanent stack 47 ft (filed Nov. 2025) and tallest crane 200 ft (March 2024). Job values are not added up: trade permits often repeat the whole project's value.

Building permits
FAA filings
’22
’23
’24
’25
Dot size: records in the quarter, largest = 20. Two-digit years mark each first quarter.
The buildings

Specs

10 buildings
planned as of Dec. 2023, up from seven in Dec. 2022 (company says)
Company · Dec. 2023
2.3 million sq ft
planned across 7+ buildings and 420 MW (press, citing the company)
News report · Sept. 2025
227,000 sq ft
first building, inaugurated Aug. 2021 (press, citing the company)
News report · Oct. 2021
Other data centers within 40 km (253)
This campus (footprint)
16 ac
IAD101 Manassas Data Center
48 ac
LC Campus United States - Northern VA
46 ac
8190 Bethlehem Data Center
42 ac
Bethlehem Technology Park DC18 Data Ce
41 ac
IAD100 Manassas Data Center
41 ac
Who is involved

Owners, partners and builders

Owners and developers
  • STACK Infrastructure: developer and operator
  • Blue Owl Capital: owner per June 2025 press, succeeding IPI Partners
  • Peterson Companies: land and entitlements partner (2020 announcement)
Power
  • Northern Virginia Electric Cooperative (NOVEC): serving utility
Decision-makers
  • Prince William County Board of County Supervisors: denied the expansion and initiated the county rezoning
Counterparties and opponents
  • Youth For Tomorrow: nonprofit that sold the Dec. 2023 expansion parcel
  • Coalition to Protect Prince William County: organized opposition
Builders on site
  • Holder Construction Group LLC: 7 building permits
  • Holder Construction: 4 building permits
  • Dynalectric Company: 2 building permits
  • Ecs Mid Atlantic LLC: 2 building permits
  • The Poole & Kent Corporation: 2 building permits
  • Mona Electric Group Inc: 1 building permit
  • and 3 more contractors in the permit and inspection records
Still unknown

Open questions

Where this comes from

139 records from 18 documents

Drawn from news reports, company statements, state agency records, public and commercial datasets, local government records and utility regulator dockets, each kept with its date and source. The bar shows documents by type.

News report 7Company 5State agency 3Dataset 2Local government 1Utility regulator 1
Evidence

Every quote behind this page

Grade key: A = the primary record itself (permit, filing, exhibit) · B = a dated official statement · C = news reporting. Map distances are our own measurements on OpenStreetMap and carry no grade. Allegations in lawsuits are marked as such in the quotes.

Power (18)
  • Name: STACK Infrastructure NVA02
    “NVA02 — Manassas — 420MW of scalability supporting the next generation of innovation.”
    Company · Oct. 2026 · grade B
  • Stated campus size: 420 MW
    “NVA02 — Manassas — 420MW of scalability supporting the next generation of innovation.”
    Company · Oct. 2026 · grade B
  • Utility service: not stated
    “The entire campus features committed power from Northern Virginia Electric Cooperative (NOVEC) leveraging the existing campus' planned onsite substations.”
    Company · Oct. 2026 · grade B
  • On-site generation: not stated
    “The site will also include a 300MW dedicated onsite substation, which will supply committed and scalable power from Northern Virginia Electric Cooperative (NOVEC)”
    Company · Oct. 2026 · grade B
  • PJM TEAC (Dominion supplemental, need DOM-2026-0025): NOVEC has requested a new 230 kV delivery point ('Mudel') for a split-use substation serving residential, commercial and 'a new data center complex' in Prince William
    “NOVEC has submitted a DP Request for a new substation (Mudel) for split-use service of residential, commercial, and a new data center complex in Prince William County, VA with a total expected capacity of 300 MW.”
    Utility regulator · June 2026 · grade B
  • Utility: Northern Virginia Electric Cooperative (NOVEC)
    “The entire campus features committed power from Northern Virginia Electric Cooperative (NOVEC) leveraging the existing campus' planned onsite substations.”
    Company · Dec. 2023 · grade B
  • Buildings planned: 7
    “The 1.8 million square foot campus is currently master planned for seven data centers, including its two newest additions that each provide 48MW of capacity.”
    Company · Dec. 2022 · grade B
  • Power plan: grid
    “The site will also include a 300MW dedicated onsite substation, which will supply committed and scalable power from Northern Virginia Electric Cooperative (NOVEC)”
    Company · Dec. 2022 · grade B
  • IT capacity: 72 MW
    “The 25-acre initial phase of the project will deliver 700,000 square feet, serving 72 MW of critical capacity beginning as early as the end of 2020.”
    Company · Oct. 2021 · grade B
  • Two-building first phase delivered; second phase (36 MW growing to 72 MW) breaks ground, due online starting Q4 2022
    “On the heels of the successful delivery of a two-building first phase, this groundbreaking represents both a continuation of STACK's investment in its Northern Virginia campus”
    Company · Oct. 2021 · grade B
  • Developer: STACK Infrastructure
    “The 125-acre, multi-phase development will eventually offer more than 250 MW of critical load for flexible build-to-suit facilities to serve large data center users”
    Company · Jan. 2020 · grade B
  • Site acres: 125 acres
    “The 125-acre, multi-phase development will eventually offer more than 250 MW of critical load for flexible build-to-suit facilities to serve large data center users”
    Company · Jan. 2020 · grade B
  • STACK and Peterson Companies announce the 125-acre Manassas campus: >250 MW of critical load at full build-out, 72 MW initial phase, four pad-ready sites inside the county data center overlay zone
    “The 125-acre, multi-phase development will eventually offer more than 250 MW of critical load for flexible build-to-suit facilities to serve large data center users”
    Company · Jan. 2020 · grade B
  • Interconnection status: Dominion Energy Virginia service (PJM); energized and in development; campus planned at 420 MW from two dedicated 300 MW on-site substations (company statements as reported); queue figure 336 MW i
    “the 200+-acre NVA02 campus will be home to at least seven data centers and provide 420MW across more than 2.3 million sq ft from two dedicated 300MW on-site substations”
    News report · Oct. 2026 · grade C
  • Epoch AI dataset estimates for this campus (NOT booked in any MW field): 487 MW planned facility power; 85 MW in the epoch mw current field while the same record's status text says '1 bldgs op, 118 MW'; estimated full bu
    “all buildings have begun construction”
    grade C
  • Site acres: 200 acres
    “the company has previously said the 200+-acre NVA02 campus will be home to at least seven data centers and provide 420MW across more than 2.3 million sq ft”
    News report · Sept. 2025 · grade C
  • Campus sq ft planned: 2300000 sq ft
    “the company has previously said the 200+-acre NVA02 campus will be home to at least seven data centers and provide 420MW across more than 2.3 million sq ft”
    News report · Sept. 2025 · grade C
  • Company statements describe the campus power architecture as dedicated on-site substations: one 300 MW substation (Dec 2022 release), later two dedicated 300 MW substations (company statements via DCD, Sep 2025). Substat
    “the company has previously said the 200+-acre NVA02 campus will be home to at least seven data centers and provide 420MW across more than 2.3 million sq ft”
    News report · Sept. 2025 · grade C
Money and contracts (14)
  • rezoning proffers: proffers, never took effect
    “The applications proposed a data center campus with a master zoning plan, proffers, and special use permit conditions.”
    Local government · Oct. 2026 · grade A
  • Tenants: not stated
    “The 125-acre, multi-phase development will eventually offer more than 250 MW of critical load for flexible build-to-suit facilities to serve large data center users”
    Company · Oct. 2026 · grade B
  • land purchase: scope
    “The acquisition, purchased from, and located adjacent to the property of Youth For Tomorrow, a nonprofit program serving at-risk youth in the community”
    Company · Dec. 2023 · grade B
  • land purchase: consideration / acreage, FINDING: not disclosed
    “The extension adds three new data centers, bringing the total to ten cutting-edge facilities across the campus.”
    Company · Dec. 2023 · grade B
  • electric service: scope, committed power, no public ESA
    “The entire campus features committed power from Northern Virginia Electric Cooperative (NOVEC) leveraging the existing campus' planned onsite substations.”
    Company · Dec. 2023 · grade B
  • electric service: term / minimum billing / termination, FINDING: not stated in any public document
    “The site will also include a 300MW dedicated onsite substation, which will supply committed and scalable power from Northern Virginia Electric Cooperative (NOVEC)”
    Company · Dec. 2023 · grade B
  • land purchase: scope
    “announced the purchase of 74 additional acres in the center of Prince William County. The recently acquired land will add 100MW to the now 250MW campus.”
    Company · Dec. 2022 · grade B
  • land purchase: consideration, FINDING: not disclosed
    “announced the purchase of 74 additional acres in the center of Prince William County. The recently acquired land will add 100MW to the now 250MW campus.”
    Company · Dec. 2022 · grade B
  • development partnership: scope
    “We are excited to partner with STACK to bring this 125-acre, 4 million plus square foot data center campus online”
    Company · Jan. 2020 · grade B
  • development partnership: termination / milestones / clawbacks, FINDING: not reviewable
    “today announced plans to develop a data center campus in Manassas, Virginia”
    Company · Jan. 2020 · grade B
  • No campus-specific incentive agreement (abatement, PILOT, grant) appears in the county record or company releases reviewed; the Hornbaker campus proceeded by right inside the overlay district and the only county financia
    “The applications proposed a data center campus with a master zoning plan, proffers, and special use permit conditions.”
    Local government · Oct. 2026 · grade C
  • Tenant status: fully leased as of May 2021 (company via press); tenant names never disclosed
    “The company has bought an additional 25 acres adjacent to its existing Prince William County campus, which is still in development and currently fully leased.”
    News report · May 2021 · grade C
  • land purchase: scope
    “The company has bought an additional 25 acres adjacent to its existing Prince William County campus, which is still in development and currently fully leased.”
    News report · May 2021 · grade C
  • land purchase: consideration, FINDING: not disclosed
    “The company said the land will make room for up to two 36MW facilities.”
    News report · May 2021 · grade C
Permits and government (72)
  • rezoning: denied
    “The Board denied both the rezoning and special use permit on September 9, 2025, by Resolution No. 25-472.”
    Local government · Oct. 2026 · grade A
  • special use permit: denied
    “The Bristow Campus site was outside the Data Center Opportunity Zone Overlay District and therefore required a special use permit for the proposed data-center use.”
    Local government · Oct. 2026 · grade A
  • zoning map amendment (county-initiated): initiated
    “the Board initiated the Zoning Map Amendment for properties listed in the directive on September 1, 2026, by adoption of Res. No. 26-522”
    Local government · Oct. 2026 · grade A
  • zoning map amendment (county-initiated): initiation amended to add parcels
    “amends the September 1, 2026, initiation of Zoning Map Amendment #DPA2027-00001, Nokesville Road (Resolution Number 26-522), to include GPINs 7595-62-7350, 7595-62-3728, and 7595-62-8547”
    Local government · Oct. 2026 · grade A
  • The campus's only growth path outside the overlay district was closed: the Board denied the Bristow Campus rezoning and SUP (Res. No. 25-472), cutting the announced 10-building plan back to the by-right Hornbaker footpri
    “The Board denied both the rezoning and special use permit on September 9, 2025, by Resolution No. 25-472.”
    Local government · Oct. 2026 · grade A
  • The county is now pursuing its own rezoning (DPA2027-00001) of the Nokesville Road parcels, including the three denied Bristow GPINs, from A-1 to PBD with NO proffer conditions, which if adopted would let data-center u
    “The Zoning Map Amendment initiated by the Board will not include voluntary proffer conditions, including a proffer restriction on uses otherwise permitted by right”
    Local government · Oct. 2026 · grade A
  • Prince William County Board of County Supervisors: Bristow Campus, Rezoning #REZ2022-00030 and Special Use Permit #SUP2022-00034
    “The Board denied both the rezoning and special use permit on September 9, 2025, by Resolution No. 25-472.”
    Local government · Oct. 2026 · grade A
  • Prince William County Board of County Supervisors: Direction to initiate a county zoning map amendment for the Nokesville Road properties (later DPA2027-00001)
    “on June 9, 2026, the Board adopted Resolution Number (Res. No.) 26-375 directing the County Executive to work with County staff”
    Local government · Oct. 2026 · grade A
  • Prince William County Board of County Supervisors: Initiation of Zoning Map Amendment #DPA2027-00001, Nokesville Road
    “the Board initiated the Zoning Map Amendment for properties listed in the directive on September 1, 2026, by adoption of Res. No. 26-522”
    Local government · Oct. 2026 · grade A
  • Prince William County Board of County Supervisors: Amend initiation of Zoning Map Amendment #DPA2027-00001 to add the three former Bristow Campus GPINs (~58.14 acres)
    “amends the September 1, 2026, initiation of Zoning Map Amendment #DPA2027-00001, Nokesville Road (Resolution Number 26-522), to include GPINs 7595-62-7350, 7595-62-3728, and 7595-62-8547”
    Local government · Oct. 2026 · grade A
  • FAA OE/AAA: Determined - No Hazard
    “Existing building development project located in Manassas VA. Replacing ASNs 2024-AEA-2974:2977-OE”
    FAA · Nov. 2025 · grade A
  • Expansion entitlement: Bristow Campus expansion (REZ2022-00030 / SUP2022-00034) DENIED Sep 9, 2025, Res. No. 25-472
    “The Board denied both the rezoning and special use permit on September 9, 2025, by Resolution No. 25-472.”
    Local government · Sept. 2025 · grade A
  • FAA OE/AAA: Determined - No Hazard
    “ASN 2024-AEA-5252-OE: P3-Building-NW, Building, 120 ft AGL, 350 ft AMSL, 38.74400278,-77.53890833, Determined - No Hazard, submitted 2024-05-13”
    FAA · May 2024 · grade A
  • FAA OE/AAA: Determined - No Hazard
    “ASN 2024-AEA-5253-OE: P3-Building-SW, Building, 120 ft AGL, 350 ft AMSL, 38.74277222,-77.53769444, Determined - No Hazard, submitted 2024-05-13”
    FAA · May 2024 · grade A
  • FAA OE/AAA: Determined - No Hazard
    “ASN 2024-AEA-5254-OE: P3-Building-SE, Building, 120 ft AGL, 350 ft AMSL, 38.74308611,-77.53703333, Determined - No Hazard, submitted 2024-05-13”
    FAA · May 2024 · grade A
  • FAA OE/AAA: Determined - No Hazard
    “ASN 2024-AEA-5255-OE: P3-Building-NE, Building, 120 ft AGL, 350 ft AMSL, 38.74436944,-77.5383, Determined - No Hazard, submitted 2024-05-13”
    FAA · May 2024 · grade A
  • FAA OE/AAA: Determined - No Hazard
    “ASN 2024-AEA-2962-OE: P3-Crane-NW, Crane, 200 ft AGL, 430 ft AMSL, 38.74402778,-77.53915556, Determined - No Hazard, submitted 2024-03-18”
    FAA · March 2024 · grade A
  • FAA OE/AAA: Determined - No Hazard
    “ASN 2024-AEA-2963-OE: P3-Crane-SW, Crane, 200 ft AGL, 430 ft AMSL, 38.742525,-77.53767222, Determined - No Hazard, submitted 2024-03-18”
    FAA · March 2024 · grade A
  • FAA OE/AAA: Determined - No Hazard
    “ASN 2024-AEA-2964-OE: P3-Crane-SE, Crane, 200 ft AGL, 430 ft AMSL, 38.74306111,-77.53678889, Determined - No Hazard, submitted 2024-03-18”
    FAA · March 2024 · grade A
  • FAA OE/AAA: Determined - No Hazard
    “ASN 2024-AEA-2965-OE: P3-Crane-NE, Crane, 200 ft AGL, 430 ft AMSL, 38.74456111,-77.53826944, Determined - No Hazard, submitted 2024-03-18”
    FAA · March 2024 · grade A
  • FAA OE/AAA: Determined - No Hazard
    “ASN 2024-AEA-2970-OE: P4-Crane-NW, Crane, 200 ft AGL, 488 ft AMSL, 38.74949444,-77.53745278, Determined - No Hazard, submitted 2024-03-18”
    FAA · March 2024 · grade A
  • FAA OE/AAA: Determined - No Hazard
    “ASN 2024-AEA-2971-OE: P4-Crane-SW, Crane, 200 ft AGL, 488 ft AMSL, 38.74725833,-77.53914722, Determined - No Hazard, submitted 2024-03-18”
    FAA · March 2024 · grade A
  • FAA OE/AAA: Determined - No Hazard
    “ASN 2024-AEA-2972-OE: P4-Crane-SE, Crane, 200 ft AGL, 488 ft AMSL, 38.74680556,-77.53817778, Determined - No Hazard, submitted 2024-03-18”
    FAA · March 2024 · grade A
  • FAA OE/AAA: Determined - No Hazard
    “ASN 2024-AEA-2973-OE: P4-Crane-NE, Crane, 200 ft AGL, 488 ft AMSL, 38.74904444,-77.53648056, Determined - No Hazard, submitted 2024-03-18”
    FAA · March 2024 · grade A
  • FAA OE/AAA: Reminder
    “ASN 2024-AEA-2974-OE: P4-Building-NW, Building, 43 ft AGL, 331 ft AMSL, 38.74930556,-77.53739167, Reminder, submitted 2024-03-18”
    FAA · March 2024 · grade A
  • FAA OE/AAA: Reminder
    “ASN 2024-AEA-2975-OE: P4-Building-SW, Building, 43 ft AGL, 331 ft AMSL, 38.74730556,-77.53890833, Reminder, submitted 2024-03-18”
    FAA · March 2024 · grade A
  • FAA OE/AAA: Reminder
    “ASN 2024-AEA-2976-OE: P4-Building-SE, Building, 43 ft AGL, 331 ft AMSL, 38.74699444,-77.53823889, Reminder, submitted 2024-03-18”
    FAA · March 2024 · grade A
  • FAA OE/AAA: Reminder
    “ASN 2024-AEA-2977-OE: P4-Building-NE, Building, 43 ft AGL, 331 ft AMSL, 38.74899444,-77.53672222, Reminder, submitted 2024-03-18”
    FAA · March 2024 · grade A
  • FAA OE/AAA: Determined - No Hazard
    “ASN 2022-AEA-1169-OE: A, Building, 35 ft AGL, 251 ft AMSL, 38.74539444,-77.53311111, Determined - No Hazard, submitted 2022-01-21”
    FAA · Jan. 2022 · grade A
  • FAA OE/AAA: Determined - No Hazard
    “ASN 2022-AEA-1170-OE: B, Building, 35 ft AGL, 251 ft AMSL, 38.74538889,-77.5329, Determined - No Hazard, submitted 2022-01-21”
    FAA · Jan. 2022 · grade A
  • FAA OE/AAA: Determined - No Hazard
    “ASN 2022-AEA-1171-OE: C, Building, 35 ft AGL, 251 ft AMSL, 38.744875,-77.53320556, Determined - No Hazard, submitted 2022-01-21”
    FAA · Jan. 2022 · grade A
  • FAA OE/AAA: Determined - No Hazard
    “ASN 2022-AEA-1172-OE: D, Building, 35 ft AGL, 251 ft AMSL, 38.74486667,-77.532925, Determined - No Hazard, submitted 2022-01-21”
    FAA · Jan. 2022 · grade A
  • Aliases: NVA02/03 (early phase styling, 2021); Bristow Campus (denied expansion application name)
    “The applications proposed a data center campus with a master zoning plan, proffers, and special use permit conditions.”
    Local government · Oct. 2026 · grade B
  • FAA OE/AAA: Determined - No Hazard
    “Hoisting Mechanical equipment to roof. Monday - Friday from 7:00 AM to 5:00 PM for 3 Months starting on 12-6-2025.”
    FAA · Oct. 2025 · grade B
  • building permit: Electrical commercial new structure: final
    “Permit number: ELE2023-01507 · Type: Electrical commercial new structure · Status: final · Job value: $475,000 · Effective date: April 7, 2025 · Business: PWC Department OF Development · Address: 9590 HORNBAKER RD · Description: Electrical work for rpp's and circuits for data halls 110/210 new ele created per s. F”
    Local building-permit records · April 2025 · grade B
  • building permit: Certificate of occupancy commercial tenant layout: issued
    “Permit number: OCC2025-00578 · Type: Certificate of occupancy commercial tenant layout · Status: issued · Job value: $1,000,000 · Effective date: Dec. 12, 2024 · Business: Holder Construction CO; Holder · Address: 9590 HORNBAKER RD · Description: Stack data center building 3 - nva02d alteration”
    Local building-permit records · Dec. 2024 · grade B
  • building permit: Building commercial tenant layout: final
    “Permit number: BLD2024-03350 · Type: Building commercial tenant layout · Status: final · Job value: $1,000,000 · Effective date: April 1, 2024 · Business: Holder Construction CO · Address: 9590 HORNBAKER RD · Description: Stack data center building 3 - nva02d alteration”
    Local building-permit records · April 2024 · grade B
  • building permit: Mechanical commercial tenant layout: final
    “Permit number: MEC2024-01210 · Type: Mechanical commercial tenant layout · Status: final · Job value: $25,000 · Effective date: March 26, 2024 · Business: THE Poole & Kent Corporation · Address: 9590 HORNBAKER RD · Description: Stack data center building 3 - nva02d alteration”
    Local building-permit records · March 2024 · grade B
  • building permit: Electrical commercial tenant layout: final
    “Permit number: ELE2024-03492 · Type: Electrical commercial tenant layout · Status: final · Job value: $175,000 · Effective date: March 6, 2024 · Business: Dynalectric DC · Address: 9590 HORNBAKER RD · Description: Stack data center building 3 - nva02d alteration”
    Local building-permit records · March 2024 · grade B
  • building permit: Plumbing commercial tenant layout: final
    “Permit number: PLB2024-01325 · Type: plumbing commercial tenant layout · Status: final · Job value: $10,000 · Effective date: March 1, 2024 · Business: THE Poole & Kent Corporation · Address: 9590 HORNBAKER RD · Description: Stack data center building 3 - nva02d alteration”
    Local building-permit records · March 2024 · grade B
  • building permit: Building commercial alteration/repair: revoked
    “Permit number: BLD2024-00954 · Type: Building commercial alteration/repair · Status: revoked · Effective date: Aug. 18, 2023 · Business: Holder Construction · Address: 9590 HORNBAKER RD · Description: Stack data center building 3 - nva02d alteration”
    Local building-permit records · Aug. 2023 · grade B
  • building permit: Building commercial accessory structure: final
    “Permit number: BLD2022-05871 · Type: Building commercial accessory structure · Status: final · Job value: $5,000 · Effective date: June 29, 2023 · Business: Holder Construction Group LLC · Address: 9590 HORNBAKER RD · Description: **targeted** concrete generator pad”
    Local building-permit records · June 2023 · grade B
  • building permit: Building commercial accessory structure: final
    “Permit number: BLD2022-05872 · Type: Building commercial accessory structure · Status: final · Job value: $5,000 · Effective date: June 29, 2023 · Business: Holder Construction Group LLC · Address: 9590 HORNBAKER RD · Description: *targeted* concrete transformer pad”
    Local building-permit records · June 2023 · grade B
  • building permit: Building commercial accessory structure: final
    “Permit number: BLD2022-05873 · Type: Building commercial accessory structure · Status: final · Job value: $2,500 · Effective date: June 29, 2023 · Business: Holder Construction Group LLC · Address: 9590 HORNBAKER RD · Description: *targeted* concrete switchgear pad”
    Local building-permit records · June 2023 · grade B
  • building permit: Building commercial accessory structure: final
    “Permit number: BLD2022-05874 · Type: Building commercial accessory structure · Status: final · Job value: $2,500 · Effective date: June 29, 2023 · Business: Holder Construction Group LLC · Address: 9590 HORNBAKER RD · Description: *targeted* concrete house generator pad”
    Local building-permit records · June 2023 · grade B
  • building permit: Building commercial accessory structure: final
    “Permit number: BLD2022-05875 · Type: Building commercial accessory structure · Status: final · Job value: $3,500 · Effective date: June 29, 2023 · Business: Holder Construction Group LLC · Address: 9590 HORNBAKER RD · Description: *targeted* concrete umvs pad”
    Local building-permit records · June 2023 · grade B
  • building permit: Building commercial accessory structure: final
    “Permit number: BLD2022-05876 · Type: Building commercial accessory structure · Status: final · Job value: $15,000 · Effective date: June 29, 2023 · Business: Holder Construction Group LLC · Address: 9590 HORNBAKER RD · Description: *targeted* frp screenwall”
    Local building-permit records · June 2023 · grade B
  • building permit: Building commercial accessory structure: final
    “Permit number: BLD2023-00537 · Type: Building commercial accessory structure · Status: final · Job value: $500,000 · Effective date: June 29, 2023 · Business: Holder Construction Group LLC · Address: 9590 HORNBAKER RD · Description: Site perimeter fencing/security gate”
    Local building-permit records · June 2023 · grade B
  • building permit: Building commercial new structure: final
    “Permit number: BLD2022-03590 · Type: Building commercial new structure · Status: final · Effective date: June 9, 2023 · Business: ECS MID Atlantic LLC; Holder C · Address: 9590 HORNBAKER RD · Description: **targeted**footing and foundation only”
    Local building-permit records · June 2023 · grade B
  • building permit: Certificate of occupancy commercial new structure: issued
    “Permit number: OCC2023-01032 · Type: Certificate of occupancy commercial new structure · Status: issued · Effective date: June 9, 2023 · Business: ECS MID Atlantic LLC; Holder C · Address: 9590 HORNBAKER RD · Description: **targeted** two story new structure building #3”
    Local building-permit records · June 2023 · grade B
  • building permit: Mechanical commercial new structure: final
    “Permit number: MEC2022-00327 · Type: Mechanical commercial new structure · Status: final · Effective date: June 2, 2023 · Business: PWC Department OF Development · Address: 9590 HORNBAKER RD · Description: **targeted** two story new structure building #3”
    Local building-permit records · June 2023 · grade B
  • building permit: Electrical commercial new structure: final
    “Permit number: ELE2023-00203 · Type: Electrical commercial new structure · Status: final · Job value: $618,517 · Effective date: May 25, 2023 · Business: Comnet Communications LLC; JIM · Address: 9590 HORNBAKER RD · Description: Gdb low voltage - voice and data”
    Local building-permit records · May 2023 · grade B
  • building permit: Electrical commercial new structure: final
    “Permit number: ELE2022-06217 · Type: Electrical commercial new structure · Status: final · Job value: $1,500,000 · Effective date: May 23, 2023 · Business: PWC Department OF Development · Address: 9590 HORNBAKER RD · Description: Gdb low voltage - data access control and av”
    Local building-permit records · May 2023 · grade B
  • building permit: Plumbing commercial new structure: final
    “Permit number: PLB2022-01610 · Type: plumbing commercial new structure · Status: final · Job value: $15,000 · Effective date: May 20, 2023 · Business: B&S Site Development INC; PWC · Address: 9590 HORNBAKER RD · Description: **targeted** site work only two story new structure building #3”
    Local building-permit records · May 2023 · grade B
  • building permit: Electrical commercial new structure: final
    “Permit number: ELE2023-01934 · Type: Electrical commercial new structure · Status: final · Job value: $74,000 · Effective date: May 19, 2023 · Business: JIM Riddle; Prince William Cou · Address: 9590 HORNBAKER RD · Description: Gdb **targeted** low voltage for HVAC controls”
    Local building-permit records · May 2023 · grade B
  • building permit: Electrical commercial new structure: final
    “Permit number: ELE2022-02455 · Type: Electrical commercial new structure · Status: final · Effective date: May 17, 2023 · Business: PWC Department OF Development · Address: 9590 HORNBAKER RD · Description: Adding low voltage for fire alarm & security - **targeted** two story new structure buildin”
    Local building-permit records · May 2023 · grade B
  • building permit: Fire protection: final
    “Permit number: FPP2022-00586 · Type: Fire protection - fire alarm · Status: final · Job value: $250,000 · Effective date: May 10, 2023 · Business: Dynalectric Company · Address: 9590 HORNBAKER RD · Description: **targeted** new construction data center”
    Local building-permit records · May 2023 · grade B
  • building permit: Fire protection: final
    “Permit number: FPP2022-00622 · Type: Fire protection - sprinkler · Status: final · Job value: $1,095,950 · Effective date: May 10, 2023 · Business: Bfpe International INC · Address: 9590 HORNBAKER RD · Description: **targeted** bfpe is provide a complete sprinkler system for stack - nva04”
    Local building-permit records · May 2023 · grade B
  • building permit: Fire protection: final
    “Permit number: FPP2022-00667 · Type: Fire protection - underground fire line · Status: final · Job value: $16,000 · Effective date: May 10, 2023 · Business: B&S Site Development · Address: 9590 HORNBAKER RD · Description: **targeted** two 8 underground fire lines from street to inside the building. Needs to be lin”
    Local building-permit records · May 2023 · grade B
  • building permit: Mechanical commercial new structure: final
    “Permit number: MEC2022-02970 · Type: Mechanical commercial new structure · Status: final · Job value: $505,697 · Effective date: April 25, 2023 · Business: JIM Riddle; Otis Elevator Comp · Address: 9590 HORNBAKER RD · Description: Elevator”
    Local building-permit records · April 2023 · grade B
  • building permit: Mechanical commercial new structure: final
    “Permit number: MEC2023-01144 · Type: Mechanical commercial new structure · Status: final · Job value: $40,000,000 · Effective date: April 25, 2023 · Business: Otis Elevator Company · Address: 9590 HORNBAKER RD · Description: **targeted** elevator 2 - install 1 new elevator - 5000 lbs @200fpm”
    Local building-permit records · April 2023 · grade B
  • building permit: Plumbing commercial new structure: final
    “Permit number: PLB2022-00345 · Type: plumbing commercial new structure · Status: final · Effective date: Jan. 7, 2023 · Business: Holder Construction; PWC Depar · Address: 9590 HORNBAKER RD · Description: **targeted** interior plumbing two story new structure building #3”
    Local building-permit records · Jan. 2023 · grade B
  • building permit: Fire protection: final
    “Permit number: FPP2022-00646 · Type: Fire protection - underground fire line · Status: final · Job value: $1,500 · Effective date: Oct. 21, 2022 · Business: JIM Riddle; PWC Department OF · Address: 9590 HORNBAKER RD · Description: **targeted** two story new structure building #3”
    Local building-permit records · Oct. 2022 · grade B
  • building permit: Electrical commercial new structure: revoked
    “Permit number: ELE2023-01395 · Type: Electrical commercial new structure · Status: revoked · Job value: $475,000 · Effective date: Sept. 8, 2022 · Business: Mona Electric Group INC · Address: 9590 HORNBAKER RD · Description: **targeted** install rpp sub panels and circuit whips”
    Local building-permit records · Sept. 2022 · grade B
  • building permit: Electrical commercial alteration/repair: revoked
    “Permit number: ELE2023-01168 · Type: Electrical commercial alteration/repair · Status: revoked · Job value: $475,000 · Effective date: Aug. 26, 2022 · Address: 9590 HORNBAKER RD · Description: Install rpp sub panels and circuit whips”
    Local building-permit records · Aug. 2022 · grade B
  • building permit: Electrical commercial alteration/repair: revoked
    “Permit number: ELE2022-06599 · Type: Electrical commercial alteration/repair · Status: revoked · Job value: $618,516 · Effective date: June 27, 2022 · Business: Comnet Communications · Address: 9590 HORNBAKER RD · Description: **must email application*low-voltage installation of antennas for cellular service”
    Local building-permit records · June 2022 · grade B
  • building permit: Fire protection: withdrawn
    “Permit number: FPP2022-00636 · Type: Fire protection - underground fire line · Status: withdrawn · Job value: $1,500 · Effective date: March 28, 2022 · Address: 9590 HORNBAKER RD · Description: Underground fire main from less than 10 feet from the building to sprinkler system flange inside the building.”
    Local building-permit records · March 2022 · grade B
  • building permit: Electrical commercial new structure: revoked
    “Permit number: ELE2022-02994 · Type: Electrical commercial new structure · Status: revoked · Effective date: Dec. 21, 2021 · Business: Dynalectric Company; SI NVA 04 · Address: 9590 HORNBAKER RD · Description: ****voided because the work was done on ele2022-02455 -jl***please upload a completed ele”
    Local building-permit records · Dec. 2021 · grade B
  • building permit: Building commercial shell building: revoked
    “Permit number: BLD2022-00517 · Type: Building commercial shell building · Status: revoked · Job value: $40,000,000 · Effective date: July 26, 2021 · Business: Plan Intake · Address: 9590 HORNBAKER RD · Description: **see bld2022-00534** building 3 white box shell”
    Local building-permit records · July 2021 · grade B
  • zoning entitlement: by-right (Data Center Opportunity Zone Overlay District)
    “with four pad-ready sites in the Prince William County data center overlay zone, we believe the ability to offer large scale build-to-suit projects”
    Company · Jan. 2020 · grade B
  • Prince William County Board of County Supervisors: Bristow Campus denial, vote detail and public comment
    “The Prince William County Board of County Supervisors voted 4-2 to reject a data center rezoning application filed by Stack Infrastructure to expand its NVA02 campus”
    News report · Sept. 2025 · grade C
  • Prince William County Board of County Supervisors: Bristow Campus (REZ2022-00030 / SUP2022-00034), applicant-requested deferral of the vote to September 9, 2025
    “The Prince William Board of County Supervisors has approved a third deferral for the Bristow Campus data center proposal”
    News report · June 2025 · grade C
Legal (1)
  • Entitlement path: by-right, Data Center Opportunity Zone Overlay District (Hornbaker Road campus)
    “with four pad-ready sites in the Prince William County data center overlay zone, we believe the ability to offer large scale build-to-suit projects”
    Company · Jan. 2020 · grade B
Site and other (8)
  • No campus-level project LLC is named in any source opened: STACK's releases name only STACK Infrastructure and Peterson Companies for this campus
    “We are excited to partner with STACK to bring this 125-acre, 4 million plus square foot data center campus online”
    Company · Oct. 2026 · grade B
  • Buildings planned: 10
    “The extension adds three new data centers, bringing the total to ten cutting-edge facilities across the campus.”
    Company · Dec. 2023 · grade B
  • Stage: operating-partial
    “On the heels of the successful delivery of a two-building first phase, this groundbreaking represents both a continuation of STACK's investment in its Northern Virginia campus”
    Company · Oct. 2026 · grade C
  • Construction stage: building
    “all buildings have begun construction”
    grade C
  • Organised opposition (Coalition to Protect Prince William County) campaigned against the Bristow expansion on proximity to homes, environment, noise and property values; the denial vote was taken with the Gainesville sea
    “We are here to stand up for the legacy of Bob Weir, his seat is empty… we have no voice in these votes that impact every single community member”
    News report · Sept. 2025 · grade C
  • Target date first building: Aug. 2021
    “In May, Stack acquired additional 25 acres adjacent to its campus. The company recently said it inaugurated a 227,000 sq ft (21,000 sqm) data center on the campus in August.”
    News report · Oct. 2021 · grade C
  • First building (227,000 sq ft) inaugurated in August 2021 per the company via DCD, the campus's first delivery
    “In May, Stack acquired additional 25 acres adjacent to its campus. The company recently said it inaugurated a 227,000 sq ft (21,000 sqm) data center on the campus in August.”
    News report · Oct. 2021 · grade C
  • Announced: Jan. 24, 2020
    “announced plans to develop a data center campus in Manassas, Virginia”
    News report · Jan. 2020 · grade C

Imagery and records: Building permits: ATTOM.