Key takeaways
- Land is excluded from the original use and substantial improvement tests; only building basis sets the improvement hurdle (Rev. Rul. 2018-29).
- The land must be acquired by purchase from an unrelated person, and related means 20% or more common ownership under §1400Z-2(e)(2).
- Newly designated zones take effect January 1, 2027 and run through December 31, 2036; a parcel in a zone that is not redesignated generally will not qualify for property bought after 2026.
- Large-load power service can take up to seven years in constrained markets, far longer than the 31-month working capital safe harbor.
- Site acquisition is roughly 7% of all-in greenfield cost in Cushman & Wakefield's 2026 guide, while power infrastructure is the largest line at 21%.
How do the Opportunity Zone rules treat land?
Land gets lighter treatment than buildings: it does not need to be original use or substantially improved, but it must be bought from an unrelated person and used in the zone business. The IRS said in Rev. Rul. 2018-29 that the original use requirement does not apply to land, and that a fund buying an existing building need not separately improve the land under it1. The final regulations carry this into the operating rules for a Qualified Opportunity Zone Business (QOZB), the operating company a fund invests in2.
There is one guardrail. Treasury added an anti-abuse rule for unimproved land: if land is bought with the expectation that it will not be improved by more than an insubstantial amount within 30 months, the land cannot rely on the favorable treatment3. A data center site that will host a powered building is the opposite fact pattern, but a land bank held for an undefined later phase is not. Each parcel should have a documented development plan.
| Test | Land | Building |
|---|---|---|
| Acquired by purchase from an unrelated person | Required | Required |
| Original use or substantial improvement | Not required | Required (new build is original use) |
| Substantial improvement hurdle | Excluded from the basis measured | 100% of building basis in 30 months, or 50% in a wholly rural zone |
| Used in the business in the zone | Required; idle land is a problem | Required |
| Depreciation and bonus depreciation | Not depreciable | Shell is 39-year property; many systems are shorter-lived |
The related-party rule matters most for land, because landowners often want to join the deal. Under §1400Z-2(e)(2), persons are related if they share 20% or more common ownership, a tighter test than the usual 50%4. If the seller will own 20% or more of the QOZB, the land fails the purchase requirement. See related-party rules in Opportunity Zone deals and the separate guide for landowners.
How do you confirm a parcel is in an Opportunity Zone?
Confirm the census tract for every parcel with the official CDFI Fund mapping tool, then confirm that tract will be designated for the period your project runs5. A parcel that straddles a tract line needs each portion checked. Download Census TIGER/Line tract boundaries if your engineer is overlaying the site plan in GIS19.
Timing is the hard part right now. Newly designated zones take effect January 1, 2027 and run through December 31, 2036. Under Notice 2026-40, property acquired after 2026 in a currently designated zone that is not redesignated generally does not qualify as QOZ business property, with narrow exceptions for working capital plans already under way6. As of October 2026, Treasury had not published a consolidated national list of the new zones. Until it does, treat a parcel as qualifying only if its tract appears on the state's nomination list and you can close after certification. Our guides to checking if a property is in an Opportunity Zone and the new maps taking effect in 2027 walk through the lookup.
Check rural status at the same time. A zone made up entirely of rural area lowers the substantial improvement threshold to 50% and lets a Qualified Rural Opportunity Fund offer investors a 30% basis step-up. Rural means outside any city or town of more than 50,000 people and its adjacent urbanized area7. See rural Opportunity Zones.
What power due diligence should you do before buying?
Power decides whether the land is a data center site at all, so get a utility answer on capacity and date before you close. In Northern Virginia, Dominion Energy said connecting loads above 100 MW could take one to three years longer than before, for total waits of up to seven years9. Utilities are also adding large-load tariffs. AEP Ohio's approved tariff requires new data centers above 25 MW to pay for at least 85% of subscribed demand for up to 12 years10.
- A written capacity response or will-serve letter naming megawatts, voltage and an energization window.
- Distance to transmission lines of 115 kV and above. EIA notes that transmission line data come from the HIFLD dataset, while substation locations are not published, so ask the utility directly11.
- Status of any required load study, and who pays for the substation and line extension.
- Tariff terms: minimum demand charges, contract length, collateral and exit fees.
- If on-site generation is planned, its permitting path and fuel supply.
The Opportunity Zone clock makes this sharper. A QOZB can hold cash for 31 months under a written working capital plan, extended to 62 months with overlapping plans, and utility delays are not clearly the government permitting delays that toll that clock2. Buying land years before power arrives can strand equity. Read the working capital safe harbor and power interconnection guides before signing.
Fig. 1Land is cheap; power and time are not
- Share of greenfield cost spent on site acquisition
- ~7%
- Share spent on power infrastructure, the largest line
- 21%
- Reported wait for 100 MW+ service in Northern Virginia
- Up to 7 yrs
- Minimum site in one 400 MW hyperscaler request
- 200 acres
How do you check water and fiber before buying?
Confirm water supply and discharge capacity in writing, and map at least two independent fiber routes to the site. Water use depends on the cooling design. U.S. data centers used about 17.4 billion gallons of water directly in 2023, and LBNL projected that could double or quadruple by 202812. A closed-loop or air-cooled design cuts the requirement but usually raises power use.
- Water: municipal capacity letter or groundwater rights, drought restrictions, wastewater and blowdown discharge permits, and any local water ordinance aimed at large users.
- Fiber: long-haul routes near the site, carrier-neutral facilities and exchanges within reach (PeeringDB lists facilities and carriers14), lateral construction cost, and route diversity.
- Last-mile broadband data from the FCC National Broadband Map helps show which providers serve the area, though it is built for consumer service rather than wholesale fiber13.
Our guides to water and cooling and fiber for rural sites cover design options and costs in detail.
What zoning, permitting and hazard checks matter?
Confirm the use is allowed, find out whether approval is by right or discretionary, and check for pending moratoria. Discretionary approvals are where projects stall. Data Center Watch counted at least 75 projects worth about $130 billion blocked or delayed in the first quarter of 2026 alone17. Pima County, Arizona adopted a 120-day moratorium on new data center projects in unincorporated areas in September 202616.
- Zoning district, height limits, setbacks, noise standards and generator rules.
- Air permits for backup generators or on-site gas turbines.
- FEMA flood zone status from the National Flood Hazard Layer15.
- Environmental site assessment, wetlands and endangered species review.
- Road access for construction loads and transformer deliveries.
- Local tax abatement or PILOT practice, which can affect title structure.
Engage the community before you are committed. The community engagement guide explains how.
Should the QOZB buy the land, option it or ground lease it?
Most sponsors option the land first, close only when power and zoning are clear, and consider a ground lease when the landowner will not sell. Each choice interacts with the rules.
| Approach | OZ effect | Main watch item |
|---|---|---|
| Option, then QOZB buys | Land is purchased property once the QOZB closes | Close inside a valid zone and after equity is in the fund |
| QOZB buys at once | Land counts in the 70% tangible property test if used | Idle land and the 30-month anti-abuse rule |
| Ground lease from unrelated owner | Leased land can count if the lease is at market rate | Arm's-length terms; no large prepayments |
| Ground lease from related owner | Extra limits apply | No prepayment over 12 months; tight documentation |
| Owner contributes land for equity | Generally not a purchase, so land may not qualify | Get tax counsel before agreeing |
Leased property can count toward the QOZB's 70% tangible property test if the lease is on market terms2. Ground leasing keeps fund equity out of non-depreciable land. Details are in the leased property rules. For a building conversion, the purchase price allocation between land and building matters, because only the building's basis sets the substantial improvement hurdle. The allocation must be supported by an appraisal.
Fig. 2A practical land acquisition sequence
- 01
Confirm tract
CDFI tool plus 2027 designation status
- 02
Utility answer
MW, voltage, date, tariff
- 03
Water and fiber
Capacity letters and routes
- 04
Zoning path
By right or discretionary; moratoria
- 05
Seller check
Unrelated under the 20% test
- 06
Close
QOZB buys or leases at market terms
What does a ready Opportunity Zone data center site look like?
A ready site passes on tract, power, water, fiber, zoning and seller independence, with any open item tied to a dated plan. The scorecard below shows a typical candidate partway through diligence. For how sponsors rank whole regions, see data center site selection inside Opportunity Zones.
Fig. 3Example site diligence scorecard
Illustrative- WatchTract designated for 2027 to 2036On state nomination list; Treasury certification pending
- PassWholly rural zone50% improvement threshold and QROF eligibility possible
- WatchPower capacity and dateUtility study under way; 300 MW indicated for phase one
- PassWater supplyClosed-loop design; municipal letter received
- PassFiber routesTwo long-haul routes within five miles
- WatchZoningSpecial use permit needed; hearing scheduled
- PassSeller unrelatedSeller takes no equity in the QOZB
Common questions
Does land count toward the substantial improvement test?
No. Land is excluded. When a QOZB buys an existing building, only the basis allocated to the building must be doubled (or increased by 50% in a wholly rural zone) within 30 months. The land does not need to be separately improved.
Can a QOZB buy land and hold it for a later phase?
It can, but idle land is a risk. Land bought with no expectation of more than insubstantial improvement within 30 months cannot rely on the favorable land rule, and land must be used in the business. Document a phased plan for every parcel.
Can I buy land now in a current zone that may not be redesignated?
Be careful. Under Notice 2026-40, property acquired after 2026 in a zone that is not redesignated generally does not qualify, with narrow exceptions for existing working capital plans. Confirm the tract is on the new list before closing.
Can the landowner sell the land to the QOZB and also invest?
Only if the landowner stays below the related-party line. Persons with 20% or more common ownership are related, and land bought from a related person fails the purchase requirement.
Is ground leasing better than buying?
Often, for capital efficiency. Land is not depreciable, so ground leasing at market terms keeps fund equity in the building and systems. Leased land can count as qualifying property, but related-party leases face extra limits.
How many acres does a data center need?
It varies widely with density and on-site power. One hyperscaler request sought at least 200 acres for 400 MW, but there is no authoritative public benchmark. Size the site from the power plan and phasing.
Sources
Every numbered note in this guide links to the source below.
- 1.Internal Revenue Service (hosted by Morris, Manning & Martin), “Revenue Ruling 2018-29,” 2018. mmmlaw.com
- 2.Legal Information Institute, Cornell Law School, “26 CFR 1.1400Z2(d)-1, Qualified opportunity funds and qualified opportunity zone businesses,” n.d. law.cornell.edu
- 3.Stoel Rives, “Treasury Issues New Proposed Qualified Opportunity Zone Regulations,” 2019. stoel.com
- 4.U.S. Government Publishing Office (GovInfo), “26 U.S.C. 1400Z-2, Special rules for capital gains invested in opportunity zones,” n.d. govinfo.gov
- 5.CDFI Fund, U.S. Department of the Treasury, “CIMS Mapping Tool,” n.d. cdfifund.gov
- 6.Internal Revenue Service, “Notice 2026-40, Transitional Guidance on Qualified Opportunity Zones,” 2026. irs.gov
- 7.Internal Revenue Service, “Notice 2025-50, rural areas and substantial improvement,” 2025. eitc.irs.gov
- 8.IREI, “Cushman & Wakefield releases 2026 Data Center Development Cost Guide citing 21% rise in per-MW construction costs,” 2026. irei.com
- 9.Bloomberg via BNN Bloomberg, “Data centers face seven-year wait for power hookups in Virginia,” 2024. bnnbloomberg.ca
- 10.POWER Magazine, “Regulator approves AEP Ohio's landmark data center tariff,” 2025. powermag.com
- 11.U.S. Energy Information Administration, “Does EIA publish the location of electric power plants and transmission lines?,” n.d. eia.gov
- 12.Lawrence Berkeley National Laboratory, “2024 United States Data Center Energy Usage Report,” 2024. eta-publications.lbl.gov
- 13.Federal Communications Commission, “How to Use the FCC's National Broadband Map,” n.d. help.bdc.fcc.gov
- 14.PeeringDB, “About PeeringDB,” n.d. peeringdb.com
- 15.Federal Emergency Management Agency, “National Flood Hazard Layer search,” n.d. hazards.fema.gov
- 16.KJZZ, “Pima County passes 120-day moratorium on future data center projects,” 2026. kjzz.org
- 17.Data Center Watch, “Q1 2026 Data Center Watch Report,” 2026. datacenterwatch.org
- 18.Data Center Dynamics, “Hyperscaler seeks 200-acre site for 400MW data center in US,” n.d. datacenterdynamics.com
- 19.U.S. Census Bureau, “Where can I download Shapefiles?,” n.d. census.gov
OZ Data Centers
Building or investing in an Opportunity Zone data center?
We sponsor the deals, manage the funds and run the operating businesses. Tell us about your capital, your land or your project.
This website is for general information only. It is not an offer to sell, or a solicitation of an offer to buy, any security. Any offering will be made only through confidential offering documents, to eligible investors, where permitted by law. Opportunity Zone tax benefits depend on each investor's circumstances and on rules that can change; consult your own tax and legal advisers.