PRIVILEGED AND CONFIDENTIAL ATTORNEY-CLIENT COMMUNICATION / ATTORNEY WORK PRODUCT
MEMORANDUM
TO: Douglas Fairchild, Esq. (Responsible Partner, Real Estate Practice Group, Calderwood & Harkness LLP) Marcus Thorne (Chief Executive Officer, Ironhaven Data Centers LLC) Priya Dasgupta (Chief Financial Officer, Ironhaven Data Centers LLC)
FROM: Sylvia Hartwell, Esq. (Specialist Partner, Tax Practice Group, Calderwood & Harkness LLP)
DATE: Draft — April 2025 (to be finalized upon confirmation of project milestones)
RE: Virginia Data Center Sales Tax Exemption — Qualification Analysis under Va. Code § 58.1-609.3(18) — Stonebridge Data Center Campus, Loudoun County, Virginia
MATTER NO.: 1043-00002
This memorandum constitutes a privileged and confidential communication between Calderwood & Harkness LLP and its client, Ironhaven Data Centers LLC ("IHDC"), and is protected by the attorney-client privilege, the work product doctrine, and all other applicable privileges. This memorandum is prepared solely for the use of the addressees and other authorized representatives of IHDC and its affiliates. Distribution, reproduction, or disclosure to any third party without the prior written consent of Calderwood & Harkness LLP is strictly prohibited.
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I. EXECUTIVE SUMMARY
This memorandum analyzes whether Ironhaven Data Centers LLC ("IHDC") and/or its wholly-owned project subsidiary, Stonebridge Campus Holdings LLC (the single-purpose borrower entity to be formed as a Virginia limited liability company), can qualify for the Virginia data center sales and use tax exemption under Virginia Code § 58.1-609.3(18) (the "Data Center Exemption" or the "Exemption") in connection with the development of the Stonebridge Data Center Campus (the "Stonebridge Campus" or the "Project") in unincorporated Loudoun County, Virginia.
Based on our review of the statutory requirements, the Virginia Department of Taxation's administrative guidelines, relevant rulings, and the Project's financial and operational parameters, we conclude that IHDC is strongly positioned to qualify for the Data Center Exemption. The principal statutory qualification criteria — a minimum new capital investment of $150,000,000 within five consecutive years and the creation of at least 50 new full-time jobs — will be satisfied with substantial margin:
• Capital Investment Threshold. The total project budget for the Stonebridge Campus is approximately $600,000,000, representing four times the statutory minimum of $150,000,000. Even under a conservative analysis that excludes land acquisition costs ($77,900,000) and certain soft costs, the qualifying capital expenditures of approximately $522,100,000 vastly exceed the statutory threshold. Construction is expected to commence in November 2025 and reach substantial completion by November 2027, well within the five-year qualifying window.
• Job Creation Threshold. IHDC projects the creation of approximately 65 to 90 new full-time positions at the Stonebridge Campus upon full buildout, ranging from facility management and IT operations staff to security, maintenance, and administrative personnel. This comfortably exceeds the 50-job minimum required under the statute.
• Estimated Sales Tax Savings. The estimated sales tax savings attributable to the Exemption are approximately $15,900,000, calculated on the basis of approximately $300,000,000 in eligible equipment and tangible personal property purchases multiplied by the combined Virginia state and local sales and use tax rate of 5.3% applicable in Loudoun County. This figure represents a material benefit to the Project's economics and should be incorporated into IHDC's return analysis and project budget.
We recommend that IHDC proceed promptly with the preparation and filing of a formal application to the Virginia Department of Taxation for a certificate of exemption, targeting a filing date in Q3 2025 — in advance of the construction loan closing currently scheduled for October 15, 2025, and prior to the commencement of significant equipment procurement. IHDC should coordinate closely with its accounting firm, Fielding & Associates, CPAs (Robert Fielding, CPA, Engagement Partner), on the preparation of supporting documentation, capital expenditure tracking, and ongoing compliance matters.
The balance of this memorandum sets forth in detail the factual background and project overview (Section II), the statutory framework governing the Data Center Exemption (Section III), the scope of qualifying exempt purchases (Section IV), the qualifying entity analysis (Section V), ongoing compliance obligations and clawback risk assessment (Section VI), the interaction of the Exemption with other tax incentives and considerations (Section VII), recommended next steps (Section VIII), and our overall conclusion (Section IX).
II. BACKGROUND AND PROJECT OVERVIEW
A. The Stonebridge Campus Development
Ironhaven Data Centers LLC is a Delaware limited liability company headquartered at 44680 Prentice Drive, Suite 200, Ashburn, Virginia 20147. IHDC is a portfolio company of Ridgeline Capital Partners Fund IV, LP ("Ridgeline Fund IV" or the "Fund"), a Delaware limited partnership with approximately $3.8 billion in committed capital focused on digital infrastructure investments. IHDC is held through RCP Digital Holdings LLC ("RCP Digital"), which owns a 92% membership interest in IHDC. The remaining 8% membership interest is held by Ironhaven Management Incentive Pool LLC, a management incentive vehicle established for the benefit of IHDC's senior management team.
IHDC currently owns and operates three existing data center facilities in the Northern Virginia market, with a combined critical IT load capacity of 42 megawatts ("MW"). These facilities are located in Ashburn and Sterling, Virginia, and serve a diversified tenant base of hyperscale cloud providers, enterprise customers, and managed services operators. IHDC has established a strong operational track record in the Northern Virginia data center market and possesses deep expertise in the design, construction, and operation of mission-critical data center facilities.
The Stonebridge Data Center Campus represents IHDC's largest single development project to date. The Stonebridge Campus is a ground-up, purpose-built data center campus development situated in unincorporated Loudoun County, Virginia, at the intersection of Belmont Ridge Road and Stonebridge Boulevard. The campus site consists of two adjacent parcels identified in the Loudoun County land records by Tax Map References /95-4A-1/// (the "Stonebridge Parcel") and /95-4A-2/// (the "Meridian Parcel"), together comprising a total campus acreage of approximately 81.4 acres.
The key physical and operational parameters of the Stonebridge Campus are as follows:
• Total Campus Acreage: 81.4 acres, consisting of the 62.0-acre Stonebridge Parcel and the 19.4-acre Meridian Parcel.
• Planned Critical IT Load Capacity: 96 MW across four data center buildings.
• Building Configuration: Four buildings designated as Buildings A through D, each designed to support 24 MW of critical IT load, with each building encompassing approximately 120,000 square feet of shell space.
• Total Gross Floor Area: Approximately 480,000 square feet.
• Total Project Budget: Approximately $600,000,000.
• Redundancy Architecture: 2N diesel generator backup configuration per building; dedicated 230kV/34.5kV utility substation; redundant utility feeds via Vantage Power Cooperative.
• Construction Delivery: Single-phase EPC delivery under a guaranteed maximum price ("GMP") contract with Titan-McAllister Construction Group, LLC ("TMCG").
The Stonebridge Campus is located in the heart of "Data Center Alley," the corridor in Loudoun County, Virginia that hosts the largest concentration of data center capacity in the world. Loudoun County's favorable regulatory environment, robust utility infrastructure, fiber connectivity, and established workforce pipeline make it the premier jurisdiction for hyperscale and enterprise data center development in the United States. The Stonebridge Campus is positioned to benefit from these advantages and from IHDC's existing relationships with utility providers, local government officials, and prospective tenants in the market.
B. Project Budget Breakdown
The total development budget for the Stonebridge Campus is approximately $600,000,000, broken down by major cost category as follows:
The EPC GMP of $412,000,000 encompasses the full scope of design-build construction for all four buildings, including site work, structural and architectural components, mechanical and electrical systems (including generators, UPS systems, switchgear, and cooling equipment), fire protection, and initial tenant fit-out infrastructure. Certain categories of equipment procured within the EPC GMP scope will qualify for the Data Center Exemption, while structural and real property improvement components (e.g., concrete foundations, structural steel, building envelope) will not. The segregation of qualifying and non-qualifying expenditures within the GMP is discussed further in Section IV below.
C. Capital Stack
The Stonebridge Campus development is financed through a combination of equity and senior secured construction debt, as follows:
The senior secured construction loan facility of $390,000,000 is being arranged with Summit National Bank, N.A. serving as Administrative Agent and lead lender. The lending syndicate includes Cascade Commercial Lending Corp. (committed for $130,000,000) and Harborview Trust Company (committed for $80,000,000), with Summit National Bank, N.A. retaining the balance. The construction loan is expected to close on or about October 15, 2025, following satisfaction of customary conditions precedent including completion of due diligence, execution of the EPC contract, and receipt of all necessary zoning and permitting approvals.
The equity contribution of $210,000,000 will be funded by IHDC through a capital call to Ridgeline Fund IV via the RCP Digital Holdings LLC investment vehicle. The equity will be contributed to Stonebridge Campus Holdings LLC (the single-purpose borrower entity) as member equity in accordance with the operating agreement of that entity, which will be structured to satisfy the lender's requirements for a bankruptcy-remote, single-purpose borrower.
D. Project Timeline (Relevant Milestones)
The following table summarizes the key development milestones for the Stonebridge Campus that are relevant to the qualification analysis under the Data Center Exemption:
The timeline reflects an approximately 24-month construction period from NTP to full substantial completion, followed by a lease-up period of approximately six to nine months to reach the 85% stabilization target. The phased delivery of Building A ahead of Buildings B through D allows IHDC to begin tenant installations and revenue generation while the remaining buildings are completed, and also facilitates the phased hiring of operational staff to satisfy the job creation requirement under the Exemption.
III. STATUTORY FRAMEWORK — VA. CODE § 58.1-609.3(18)
A. Overview of the Exemption
The Commonwealth of Virginia provides a sales and use tax exemption for tangible personal property purchased or leased for use or consumption in a data center operated by a qualifying data center operator. The Data Center Exemption is codified at Virginia Code § 58.1-609.3(18) and represents one of the most significant tax incentives available to data center developers and operators in the Commonwealth.
The legislative purpose of the Data Center Exemption is to attract and retain data center investment in Virginia by reducing the effective cost of equipping and operating data center facilities. Virginia has been the leading state in the nation for data center development for over a decade, and the Data Center Exemption has been a critical component of the Commonwealth's competitive strategy to maintain that position against jurisdictions in the Southeast, Southwest, and Midwest that have offered increasingly aggressive incentive packages.
The Exemption applies to tangible personal property purchased or leased for use or consumption in the operation of a qualifying data center, including but not limited to the following categories of equipment and property:
• Computer equipment and servers, including blade servers, rack-mounted servers, and purpose-built computing hardware;
• Data storage equipment, including storage area networks (SANs), network-attached storage (NAS), and high-density storage arrays;
• Networking equipment, including switches, routers, load balancers, firewalls, and related hardware;
• Cooling systems and equipment, including computer room air conditioning (CRAC) units, computer room air handler (CRAH) units, chillers, cooling towers, and associated piping and controls;
• Electrical distribution apparatus, including switchgear, power distribution units (PDUs), remote power panels (RPPs), bus ducts, and step-down transformers;
• Uninterruptible power supply (UPS) systems and associated battery systems;
• Diesel generators and associated fuel storage and transfer systems;
• Fiber optic cabling and other networking cabling and connectivity infrastructure;
• Racking systems, including server racks, cabinets, and hot/cold aisle containment systems;
• Fire suppression systems designed for data center environments;
• Building management systems (BMS) and data center infrastructure management (DCIM) software, to the extent such software is delivered on tangible media or bundled with qualifying hardware; and
• Security and physical access control hardware, including biometric scanners, card readers, mantraps, and surveillance equipment.
The Exemption covers both the state component of the Virginia sales and use tax (currently 4.3%) and the applicable local component. In Loudoun County, Virginia, the combined state and local sales and use tax rate is 5.3%. Accordingly, the Exemption provides a dollar-for-dollar reduction in the sales and use tax liability that would otherwise be incurred on qualifying equipment purchases, calculated at the full 5.3% combined rate.
It is important to note that the Data Center Exemption applies specifically to tangible personal property — it does not exempt real property improvements, construction materials that become part of the real property (such as concrete, structural steel, drywall, and roofing materials), or services (such as construction labor, design fees, or consulting services). The distinction between tangible personal property and real property improvements is a critical element of the exemption analysis and is discussed in greater detail in Section IV below.
The Virginia Department of Taxation has issued administrative guidelines and individual rulings interpreting the scope and application of the Data Center Exemption. While a comprehensive survey of all such guidance is beyond the scope of this memorandum, we have reviewed the relevant published rulings and guidelines and have incorporated their principles into our analysis. We note that the Department of Taxation has generally construed the Exemption broadly in favor of qualifying data center operators, consistent with the General Assembly's clear intent to promote data center investment in the Commonwealth.
B. Qualifying Criteria
To qualify for the Data Center Exemption under Va. Code § 58.1-609.3(18), an applicant must satisfy several statutory criteria. The principal qualification requirements are discussed in turn below.
1. Minimum Capital Investment Threshold. The applicant must make a new capital investment of at least $150,000,000 within a period of five consecutive years from the date of the initial qualifying capital investment at the data center facility. The statute defines "new capital investment" broadly to include investments in real property, tangible personal property, and other qualifying expenditures directly related to the data center facility.
The five-year measurement period commences on the date of the first qualifying capital investment. For purposes of the Stonebridge Campus, the initial qualifying capital investment will be either (a) the land acquisition closing on September 15, 2025 (if land acquisition costs are included in the definition of qualifying capital investment), or (b) the commencement of construction pursuant to the Notice to Proceed on November 1, 2025. In either case, the five-year window would extend through September or November 2030, respectively — well beyond the anticipated project completion date of November 2027.
Analysis. The total project budget for the Stonebridge Campus is $600,000,000, encompassing the following major cost categories:
• Land acquisition: $77,900,000
• Entitlements, proffers, and soft costs: $14,200,000
• EPC hard costs (GMP): $412,000,000
• Power infrastructure: $61,000,000
• Contingency and reserves: $34,900,000
Even under the most conservative interpretation of "new capital investment" — one that excludes land acquisition costs ($77,900,000) entirely on the theory that raw land purchases may not constitute "investment in the facility" — the remaining qualifying capital expenditures of approximately $522,100,000 exceed the $150,000,000 statutory threshold by a factor of approximately 3.5x. Under the more inclusive interpretation that counts land as qualifying investment, the total qualifying investment of $600,000,000 exceeds the threshold by a factor of 4.0x.
Furthermore, the timing of the capital expenditures is well within the statutory five-year window. Construction is anticipated to commence in November 2025 and reach substantial completion by November 2027. The vast majority of the $600,000,000 project budget will be expended within this 24-month construction period, and the balance — consisting primarily of tenant fit-out equipment procurement and the final contingency drawdowns — will be expended during the lease-up period through Q2 2028. In no scenario will the capital expenditures extend beyond the five-year qualifying period.
Conclusion. IHDC and Stonebridge Campus Holdings LLC will satisfy the minimum capital investment threshold under Va. Code § 58.1-609.3(18) with very significant margin. The risk of failing to meet this threshold is, in our assessment, negligible.
2. Minimum Job Creation Requirement. The applicant must create a minimum of 50 new full-time jobs at the data center facility. The statute specifies that these must be newly created positions — existing positions transferred from another facility do not count toward the threshold. Additionally, the jobs must pay at or above a specified minimum wage threshold, which is generally set at 150% of the prevailing average wage for the locality or the federal minimum wage, depending on the applicable program year and regulatory guidance.
Analysis of Anticipated Employment. IHDC projects the following staffing levels for the Stonebridge Campus upon full buildout and stabilization:
The projected total of 65 to 90 new full-time positions exceeds the 50-job statutory minimum by a margin of 30% to 80%. These positions will be phased in as the data center buildings are delivered and tenants commence installations:
• Phase 1 (Building A delivery, August 2027): Approximately 25–35 positions, including initial facility management, NOC, security, and maintenance staff required to operate the first building.
• Phase 2 (Buildings B–D delivery, November 2027): An additional 20–30 positions as the remaining three buildings come online and operational staffing scales to full campus levels.
• Phase 3 (Stabilization, Q2 2028): Final staffing additions of approximately 10–25 positions as tenant occupancy increases and support functions are fully staffed.
The statute permits a reasonable ramp-up period for the creation of qualifying jobs, recognizing that data center employment necessarily scales with the phased delivery and occupancy of the facility. IHDC's hiring plan — which contemplates achieving the 50-job threshold by the completion of Phase 2 in late 2027, approximately two years from construction commencement — is consistent with this permissible ramp-up timeline.
Wage Threshold Compliance. Data center positions in the Northern Virginia market are among the highest-paying technical positions in the Commonwealth. Based on IHDC's current compensation structure at its three existing facilities and prevailing market rates for data center operations staff in Loudoun County, we anticipate that all positions at the Stonebridge Campus will pay at or above the applicable wage threshold. IHDC's average annual compensation for data center operations positions currently ranges from approximately $65,000 for entry-level technicians to approximately $175,000 for senior facility managers, well above any applicable minimum wage threshold.
Recommendation. Although we are confident that IHDC will meet the 50-job threshold, the job creation requirement carries inherently more variability than the capital investment threshold (which is driven by a fixed project budget), because employment levels depend on tenant occupancy, operational decisions, and market conditions. We therefore recommend that IHDC develop a detailed hiring plan and timeline that specifically maps the creation of qualifying positions to building delivery milestones, and that this plan be prepared in consultation with Leonard Castellano (Executive Vice President, Development) and IHDC's human resources department. The hiring plan should be documented in a format suitable for submission with the exemption application and for ongoing compliance reporting.
3. Data Center Use Requirement. The facility for which the exemption is claimed must qualify as a "data center" under the statute. Virginia Code § 58.1-609.3(18) defines a "data center" as a facility whose primary services are the storage, management, and processing of digital data, and which is specifically designed and equipped for that purpose. The facility must be used primarily for data center operations — ancillary uses (such as office space for administrative staff) are permissible, but the predominant use must be data storage, processing, and management.
Analysis. The Stonebridge Campus is being designed and constructed as a purpose-built, mission-critical data center campus from the ground up. Every aspect of the facility's design, engineering, and construction is oriented toward the operation of a data center:
• The campus is designed to deliver 96 MW of critical IT load across four purpose-built data center buildings.
• Each building is designed with 2N diesel generator backup configurations for uninterruptible power supply.
• A dedicated 230kV/34.5kV utility substation is being constructed by Vantage Power Cooperative to serve the campus exclusively.
• The buildings are designed with raised-floor data halls, hot/cold aisle containment, precision cooling systems, and enterprise-grade security (including biometric access control, 24/7 manned security, and comprehensive surveillance systems).
• The EPC Agreement with Titan-McAllister Construction Group, LLC specifies the construction of all four buildings to Harborview Corporation Tier III equivalent design standards.
The Stonebridge Campus has no residential, retail, or non-data-center commercial components. The only non-data-hall space within the buildings consists of mechanical/electrical rooms, loading docks, meet-me rooms, network operations center space, and limited office and amenity space for on-site personnel — all of which are ancillary to and in support of the primary data center use.
Conclusion. The Stonebridge Campus plainly and unambiguously qualifies as a "data center" within the meaning of Va. Code § 58.1-609.3(18). There is no reasonable basis for the Virginia Department of Taxation to challenge the facility's qualification as a data center.
4. Locality Requirement. The data center must be located within the Commonwealth of Virginia. There is no requirement that the data center be located in a specific region, county, or locality within Virginia, although certain localities may offer additional local incentives that complement the state-level Data Center Exemption.
The Stonebridge Campus is located in Loudoun County, Virginia, which is not only within the Commonwealth but is the leading jurisdiction for data center development in Virginia and in the nation. Loudoun County has actively encouraged data center development through supportive zoning policies, infrastructure investment, and a collaborative approach with data center operators. There is no question that the locality requirement is satisfied.
C. Application Process
To claim the Data Center Exemption, the applicant must file a formal application with the Virginia Department of Taxation seeking a certificate of exemption. The application process requires submission of the following documentation:
1. A completed application form (Virginia Department of Taxation Form ST-18, or the then-current equivalent);
2. A detailed description of the data center facility, including location, design specifications, and planned capacity;
3. Documentation of the planned capital investment, including a project budget, construction timeline, and sources of funding;
4. Projected job creation schedule, including the number and types of positions to be created, anticipated compensation levels, and the timeline for achieving the 50-job minimum;
5. Evidence of the applicant's legal status and authority to operate the data center (e.g., articles of organization, operating agreement, certificate of good standing);
6. The applicant's federal employer identification number (EIN); and
7. Such other information as the Department of Taxation may reasonably require.
Upon review and approval of the application, the Department of Taxation issues a certificate of exemption (or a letter of approval authorizing exemption from sales and use tax on qualifying purchases). The certificate must be provided to vendors and suppliers of qualifying equipment to claim the exemption at the point of sale. Vendors who receive a valid certificate of exemption are authorized to sell qualifying tangible personal property to the certificate holder without collecting Virginia sales and use tax.
Timing Considerations. The application should be filed sufficiently in advance of the commencement of significant equipment procurement to ensure that the certificate of exemption is in hand before orders are placed and invoices are generated. For the Stonebridge Campus, major equipment procurement under the EPC GMP scope (including generators, UPS systems, switchgear, and cooling equipment) is expected to commence in Q1 2026, following the November 2025 NTP. Additionally, long-lead equipment orders (particularly generators and large electrical switchgear) may be placed even earlier as part of the pre-construction procurement process.
Recommended Filing Timeline. We recommend that IHDC file the exemption application in Q3 2025, prior to or concurrent with the construction loan closing (currently targeted for October 15, 2025). This timing will allow the Department of Taxation sufficient processing time to issue the certificate before the first significant equipment orders are placed, and will also demonstrate to the construction lender that the tax exemption is being actively pursued — a consideration that may be relevant to the lender's underwriting of the project budget and tax savings assumptions.
We note that if the certificate is not yet in hand when early equipment orders are placed, IHDC may pay the sales tax and subsequently seek a refund upon receipt of the certificate. However, the refund process is administratively burdensome and introduces cash flow timing delays. It is therefore strongly preferable to have the certificate in place before procurement begins.
IV. SCOPE OF EXEMPT PURCHASES
A. Categories of Eligible Tangible Personal Property
As discussed in Section III above, the Data Center Exemption applies to tangible personal property purchased or leased for use or consumption in the operation of a qualifying data center. Based on the statutory text, the Virginia Department of Taxation's administrative guidelines, and published rulings, the following categories of equipment and property at the Stonebridge Campus are expected to qualify for the exemption:
1. IT Equipment. This category includes servers (including blade servers, rack-mounted servers, and GPU-accelerated computing platforms), data storage equipment (SANs, NAS, solid-state storage arrays, and tape backup systems), and networking equipment (switches, routers, load balancers, firewalls, network interface cards, and optical transceivers). IT equipment is the core category of qualifying property under the Exemption and represents the largest single category of eligible purchases for the Stonebridge Campus. While IHDC may not directly procure all IT equipment — in a colocation model, tenants may procure and install their own IT hardware — equipment procured directly by IHDC or Stonebridge Campus Holdings LLC for its own deployment or for provision to tenants will qualify.
2. Cooling Equipment. Cooling systems are essential to data center operations and are specifically identified in the statute and administrative guidance as qualifying property. Eligible cooling equipment includes computer room air conditioning (CRAC) units, computer room air handler (CRAH) units, chilled water plants, chillers, cooling towers, condensers, economizer systems, and associated piping, pumps, and controls. The Stonebridge Campus is designed with a high-efficiency cooling architecture incorporating both direct and indirect economization, and the cooling equipment represents a substantial portion of the overall equipment budget.
3. Electrical Distribution Equipment. Electrical infrastructure is the backbone of a data center, and the statute recognizes the criticality of electrical equipment by including it within the scope of qualifying property. Eligible items include medium-voltage and low-voltage switchgear, power distribution units (PDUs), remote power panels (RPPs), automatic transfer switches (ATS), bus ducts, step-down transformers, and power monitoring and metering equipment. The distinction between electrical equipment that qualifies as tangible personal property (and is therefore exempt) and electrical infrastructure that is considered a permanent real property improvement (and is therefore not exempt) can be nuanced and is discussed further below.
4. Uninterruptible Power Supply (UPS) Systems. UPS systems and their associated battery banks (including valve-regulated lead-acid, lithium-ion, and other battery technologies) are eligible for the exemption. Each building at the Stonebridge Campus will be equipped with modular UPS systems configured for N+1 or 2N redundancy, representing a significant capital expenditure.
5. Diesel Generators. The 2N diesel generator backup configuration at each building constitutes a critical resilience component of the data center infrastructure. Generators, including the generator sets, fuel storage and transfer systems, generator paralleling switchgear, and associated controls, qualify for the exemption. The generator procurement is included within the EPC GMP scope, and IHDC should ensure that the EPC contract structure facilitates the application of the exemption to generator purchases (see Section VI.D below).
6. Fiber Optic Cabling and Connectivity Infrastructure. Fiber optic cabling (both intra-building and inter-building campus distribution), patch panels, fiber termination equipment, cross-connect infrastructure, and meet-me room equipment are eligible for the exemption. Connectivity infrastructure is essential to the data center's function and is specifically recognized in the statute.
7. Racking and Containment Systems. Server racks, cabinets, cable management systems, and hot/cold aisle containment systems (including containment panels, blanking panels, and overhead plenum containment) qualify as tangible personal property used in data center operations.
8. Fire Suppression Systems. Clean agent fire suppression systems (such as FM-200 or Greaves & Co. 1230 systems), pre-action sprinkler systems designed for data hall environments, very early smoke detection apparatus (VESDA), and associated control panels and piping are eligible for the exemption. These systems are specifically designed for data center environments and are distinguishable from conventional building fire suppression systems.
9. Building Management Systems (BMS) and DCIM Software. Building management system hardware and controllers, data center infrastructure management (DCIM) software platforms, environmental monitoring sensors (temperature, humidity, airflow), and associated hardware qualify for the exemption to the extent they constitute tangible personal property or are bundled with qualifying hardware. Standalone software licenses delivered electronically (without tangible media) may not qualify, depending on the Virginia Department of Taxation's interpretation; this should be confirmed during the application process.
10. Security and Access Control Hardware. Biometric scanners (fingerprint, iris, and facial recognition), card access control systems, mantrap vestibules, bollards and vehicle barriers, and video surveillance equipment (cameras, recording systems, and monitoring stations) qualify as tangible personal property used in the operation of the data center. These security systems are integral to the physical security requirements of a mission-critical data center facility.
Items That Do Not Qualify. It is equally important to identify categories of expenditure that do not qualify for the Data Center Exemption:
• Real property improvements: Concrete foundations, structural steel, building envelope components (walls, roofing, windows, doors), raised floor systems (to the extent they become permanent building components), and other items that are affixed to and become part of the real property are not tangible personal property and are not eligible for the exemption.
• Construction materials: Lumber, drywall, insulation, paint, and similar construction materials used in the construction of the building shell and interior finishes are not eligible.
• Construction labor and services: Labor costs for construction, installation, commissioning, and testing are not tangible personal property purchases and are not eligible.
• Land: The cost of land acquisition is not an eligible purchase of tangible personal property.
• Soft costs: Architectural and engineering fees, legal fees, permitting costs, and other professional service costs are not eligible.
• Office furniture and equipment: General-purpose office furniture, fixtures, and equipment used in administrative areas (as opposed to data center operations areas) may not qualify, although the line between "data center operations" and "administrative support" can be subject to interpretation.
B. Estimated Value of Exempt Purchases
Based on IHDC's preliminary project budget, equipment specifications, and procurement plans, we estimate that approximately $300,000,000 in equipment and tangible personal property purchases at the Stonebridge Campus will qualify for the Data Center Exemption. This estimate encompasses both (a) equipment procured within the EPC GMP scope (generators, electrical distribution, cooling, fire suppression, and BMS/controls) and (b) IT equipment and related tangible personal property procured separately by IHDC or Stonebridge Campus Holdings LLC outside the EPC scope, typically installed post-certificate of occupancy as part of tenant fit-out and IHDC's own infrastructure deployment.
The estimated breakdown of qualifying equipment purchases by category is as follows:
Several important caveats apply to this estimate:
First, the estimate of $150,000,000 in IT equipment purchases assumes that IHDC will directly procure a substantial portion of the IT equipment deployed at the Stonebridge Campus, either for its own managed services operations or for provision to tenants under powered-shell or turnkey lease arrangements. In a pure wholesale colocation model where tenants procure and own their own IT equipment, the IT equipment figure attributable to IHDC would be lower. However, even if the IT equipment category were reduced significantly, the remaining qualifying equipment categories ($150,000,000 in electrical, cooling, generators, and other infrastructure) would still generate substantial tax savings.
Second, the estimates for electrical, cooling, and generator equipment are derived from the EPC GMP budget and represent preliminary allocations that will be refined as detailed design progresses and specific equipment selections are made. The cost segregation study recommended in Section VII.B will provide a more precise allocation of the EPC GMP between qualifying tangible personal property and non-qualifying real property improvements.
Third, the classification of certain items as tangible personal property versus real property improvements involves judgment and may be subject to challenge by the Virginia Department of Taxation. Items that are "affixed to" the building — such as built-in switchgear, permanently installed chillers, and bolted-down generator pads — present classification issues. The general rule under Virginia law is that an item retains its character as tangible personal property if it can be removed without substantial damage to the building and is not essential to the structural integrity of the building. Data center equipment, even when bolted to the floor or hardwired to the building's electrical system, is generally treated as tangible personal property for purposes of the Data Center Exemption, and the Department of Taxation has historically applied this characterization favorably to data center operators. Nonetheless, IHDC should document the removability and non-structural nature of qualifying equipment as part of its compliance files.
C. Calculation of Estimated Tax Savings
The estimated sales tax savings attributable to the Data Center Exemption are calculated as follows:
• Eligible equipment purchases: $300,000,000 (estimated)
• Combined Virginia state and local sales and use tax rate (Loudoun County): 5.3%
• Estimated sales tax savings: $300,000,000 × 5.3% = $15,900,000
This $15,900,000 in projected tax savings represents a material benefit to the Stonebridge Campus project economics. To place this figure in context:
• The tax savings represent approximately 2.65% of the total $600,000,000 project budget.
• The tax savings exceed the project's contingency reserve allocation for several individual cost categories.
• On a per-megawatt basis, the tax savings equate to approximately $165,625 per MW of critical IT load across the 96 MW campus.
• The savings improve the project's unlevered yield on cost by approximately 10–15 basis points, depending on the stabilized net operating income assumptions used in IHDC's underwriting model.
We strongly recommend that the $15,900,000 in projected tax savings be reflected in IHDC's project budget, investment committee underwriting, and return analysis. The savings should be presented as a contingent benefit (contingent upon receipt of the exemption certificate) until the certificate is obtained, at which point they can be treated as a confirmed budget reduction.
V. QUALIFYING ENTITY ANALYSIS
A. Which Entity Should Apply?
The Data Center Exemption under Va. Code § 58.1-609.3(18) runs to the "data center operator" — that is, the entity that owns or operates the qualifying data center. This raises the question of which entity within the IHDC organizational structure should file the application for the certificate of exemption.
Entity Structure Overview. The relevant entities in the ownership chain are:
1. Ridgeline Capital Partners Fund IV, LP — Delaware limited partnership; the ultimate equity investor; approximately $3.8 billion in committed capital across all portfolio investments.
2. RCP Digital Holdings LLC — Delaware LLC; a holding company formed by the Fund to hold its investment in IHDC; owns 92% of IHDC.
3. Ironhaven Management Incentive Pool LLC — Delaware LLC; holds 8% of IHDC on behalf of management.
4. Ironhaven Data Centers LLC ("IHDC") — Delaware LLC; the primary operating entity; headquartered in Ashburn, Virginia; operates three existing data centers; will serve as the operator and guarantor for the Stonebridge Campus.
5. Stonebridge Campus Holdings LLC ("Stonebridge Holdings") — Virginia LLC; to be formed; wholly owned by IHDC; will serve as the single-purpose borrower entity holding title to the campus parcels and the borrower under the $390,000,000 construction loan.
Analysis of Applicant Options. Two entities within the structure could potentially serve as the applicant for the Data Center Exemption:
Option 1: Stonebridge Campus Holdings LLC (as owner). Stonebridge Holdings will be the legal owner of the Stonebridge Campus real property and the borrower under the construction loan. It will hold title to the land, the buildings, and the tangible personal property installed at the campus. As the owner of the data center, Stonebridge Holdings has a clear basis for applying as the data center operator under the statute. However, Stonebridge Holdings is a single-purpose borrower entity with no employees, no independent management function, and no operational history. Its sole purpose is to serve as a bankruptcy-remote vehicle for the construction financing. As a newly formed entity, it will have limited financial and operational history to present to the Department of Taxation, and its status as a "shell" entity may invite additional scrutiny.
Option 2: Ironhaven Data Centers LLC (as operator). IHDC is the primary operating entity — it manages all day-to-day operations at IHDC's existing data center portfolio, employs the operational staff, holds the vendor relationships, and possesses the management expertise and operational track record necessary to operate the Stonebridge Campus. IHDC will serve as the operator of the Stonebridge Campus pursuant to a management agreement with Stonebridge Holdings, and all new employees at the campus will be employed by IHDC (or an IHDC subsidiary). As the operator of the data center, IHDC has a strong basis for applying under the statute, and its established operational history, existing Virginia business presence, and financial substance make it a more credible applicant.
Recommendation. We recommend that IHDC apply as the operator of the Stonebridge Campus data center, rather than Stonebridge Holdings. This approach is supported by the following considerations:
(a) IHDC is the entity that will perform all data center management and operations functions at the Stonebridge Campus, making it the "operator" within the plain meaning of the statute.
(b) IHDC has an established track record of operating data center facilities in Virginia, which strengthens the application and reduces the likelihood of additional scrutiny from the Department of Taxation.
(c) The employees whose positions will count toward the 50-job threshold will be IHDC employees, not Stonebridge Holdings employees. Applying as the operator aligns the job creation requirement with the entity that actually employs the qualifying personnel.
(d) IHDC has an existing federal employer identification number (EIN: 84-3291057), Virginia business registration, and established accounts with the Virginia Department of Taxation, facilitating the application process.
(e) Using the operating entity as the applicant is consistent with common practice among data center operators in Virginia that utilize single-purpose borrower entities for construction financing while maintaining the operational function at the parent or management company level.
Notwithstanding this recommendation, we should confirm with the Virginia Department of Taxation during the application process whether the certificate of exemption issued to IHDC as operator can be used to claim exemptions on purchases made by or on behalf of Stonebridge Holdings as the entity of record on procurement contracts. In some cases, the Department may require that both entities be identified on the certificate, or that a separate certificate be issued to Stonebridge Holdings as the owner. We will address this procedural question as part of the application preparation.
Additionally, Stonebridge Holdings' EIN must be obtained promptly upon its formation with the Virginia State Corporation Commission, regardless of which entity is designated as the primary applicant. The EIN will be required for construction loan documentation, vendor agreements, and potentially for a companion exemption certificate.
B. Ownership Chain and Eligibility
An important consideration is whether the ultimate ownership of IHDC by a private equity fund (Ridgeline Capital Partners Fund IV, LP) affects the eligibility of IHDC or Stonebridge Holdings for the Data Center Exemption.
Analysis. The statute does not impose restrictions on the nature of the ultimate equity owner of the data center operator. The qualifying criteria focus on the data center facility and the operator — specifically, the capital investment in the facility, the creation of jobs at the facility, and the use of the facility as a data center. There is no requirement that the operator be an independent operating company, a publicly traded entity, or any particular type of legal entity. Private equity-backed data center operators, real estate investment trusts (REITs), sovereign wealth fund-backed developers, and other institutional investors have all successfully obtained the Data Center Exemption in Virginia.
Accordingly, the fact that IHDC is a portfolio company of Ridgeline Fund IV, held through RCP Digital Holdings LLC, should not affect IHDC's eligibility for the Exemption. The ownership by a Delaware limited partnership fund structure is a standard arrangement in the data center industry and is entirely consistent with the types of operators that the General Assembly intended to incentivize through the Data Center Exemption.
Change of Control Considerations. While the current ownership structure does not present an eligibility issue, IHDC should be aware that a future change of control — such as a sale of IHDC by Ridgeline Fund IV to a third party, a recapitalization, or a merger — could raise questions about the continued eligibility of the Exemption. The Data Center Exemption runs to the qualifying operator, and if the identity of the operator changes (e.g., because IHDC is merged into an acquiring entity or the management agreement is terminated and a new operator is engaged), the successor operator may need to independently qualify for the Exemption or the existing certificate may need to be amended or reissued.
This risk is particularly relevant in the context of the construction loan documents, which typically contain change of control provisions that restrict transfers of ownership interests in the borrower entity and its upstream owners without the consent of the administrative agent. If Ridgeline Fund IV were to exit its investment in IHDC during the construction period or during the five-year qualifying period for the Exemption — for example, through a fund-level portfolio sale or a disposition of the IHDC platform — the change of control could trigger requirements to amend the exemption certificate or reapply for the Exemption on behalf of the successor owner/operator.
We recommend that IHDC and its counsel (including the Ridgeline Fund IV team) be mindful of this issue and that any future disposition or change of control be evaluated for its impact on the Data Center Exemption in addition to the other regulatory, financing, and contractual implications of such a transaction.
VI. COMPLIANCE AND ONGOING OBLIGATIONS
A. Investment Tracking and Reporting
Upon receipt of the certificate of exemption, IHDC and Stonebridge Campus Holdings LLC must maintain detailed, contemporaneous records of all qualifying capital investments made at the Stonebridge Campus. These records must be sufficient to demonstrate compliance with the $150,000,000 minimum capital investment threshold within the five-year qualifying period and to substantiate the specific purchases for which the Exemption is claimed.
The investment tracking records should include, at a minimum:
• Detailed project cost ledgers, segregated by cost category (land, hard costs, equipment, soft costs, contingency);
• Purchase orders, invoices, and proof of payment for all qualifying equipment and tangible personal property;
• A clear categorization of each capital expenditure as qualifying or non-qualifying for purposes of the Exemption;
• A running total of cumulative qualifying capital investment, updated at least quarterly;
• Documentation of the date of each qualifying expenditure, to establish the five-year qualifying period;
• Copies of all exemption certificates provided to vendors and suppliers; and
• Correspondence with the Virginia Department of Taxation regarding the Exemption.
Recommendation. We recommend that IHDC engage Fielding & Associates, CPAs (Robert Fielding, CPA, Engagement Partner) to implement a dedicated tracking system for the Data Center Exemption. The tracking system should be integrated with IHDC's project accounting and ERP systems and should enable real-time categorization of capital expenditures as they are incurred. This tracking system will serve dual purposes: (a) supporting the Exemption compliance and reporting obligations, and (b) providing the data necessary for the cost segregation study discussed in Section VII.B below.
Annual reporting to the Virginia Department of Taxation may be required as a condition of the Exemption. The Department of Taxation may request periodic certifications that the qualifying thresholds continue to be met and that the facility continues to be used as a data center. IHDC should budget for the administrative costs of this reporting and should designate a responsible individual (we recommend IHDC's CFO, Priya Dasgupta, or her designee) to oversee compliance reporting on an ongoing basis.
B. Employment Verification
IHDC must document the creation and ongoing maintenance of at least 50 new full-time jobs at the Stonebridge Campus throughout the applicable compliance period. Employment verification is a critical compliance obligation, and failure to maintain the minimum employment levels could trigger clawback provisions (discussed in Section VI.C below).
Employment records should include:
• A roster of all full-time employees assigned to the Stonebridge Campus, updated at least quarterly;
• Payroll records demonstrating that qualifying employees are paid at or above the applicable wage threshold;
• Job descriptions for each qualifying position, demonstrating that the position is directly related to the operation of the data center;
• Documentation of the hire date and work location for each qualifying employee;
• Evidence that qualifying positions are new jobs and not transfers from IHDC's existing data center facilities; and
• Records of any separations, terminations, or position eliminations, along with documentation of replacement hiring.
The requirement that qualifying jobs be "new" positions — as opposed to transfers of existing IHDC employees from the Ashburn or Sterling facilities — is an important compliance consideration. IHDC should establish clear protocols to distinguish between newly hired employees and internal transfers. While it may be operationally desirable to transfer experienced employees from existing facilities to the Stonebridge Campus during the initial startup phase, such transfers would not count toward the 50-job threshold. We recommend that IHDC develop a staffing plan that prioritizes external hiring for Stonebridge Campus positions to the extent practicable, and that any internal transfers be documented separately and excluded from the qualifying job count.
Coordination with IHDC HR. We recommend that IHDC coordinate closely with Leonard Castellano (EVP, Development) and the IHDC human resources department to develop a detailed hiring plan that maps the creation of qualifying positions to building delivery milestones and tenant occupancy projections. This plan should be submitted with the exemption application and updated annually as part of the compliance reporting process.
C. Clawback / Recapture Provisions
The Data Center Exemption statute contains clawback and recapture provisions that may be triggered if the data center operator fails to meet or maintain the minimum capital investment or job creation thresholds within the prescribed time periods. Specifically:
• If the operator claims the Exemption on qualifying equipment purchases but subsequently fails to achieve the $150,000,000 minimum capital investment within five years, the operator may be required to repay the full amount of sales tax that was exempted, together with interest calculated from the date the exemption was claimed and potentially additional penalties.
• Similarly, if the operator fails to create and maintain at least 50 new full-time jobs within the required timeframe, the Department of Taxation may require repayment of the exempted tax amounts, plus interest and penalties.