In the UK data centre market, land is no longer valued mainly by where it is. Linklaters describes powered land as an emerging asset class in which access to reliable, near-term power is the principal driver of land value. A site with a secured grid connection is a different asset from a site without one, even if the two sit side by side.
This article explains what powered land means in practice, what it has been selling for, how recent transactions are structured, and what buyers check before they commit. It is written for landowners, developers and investors who hold or are looking for sites.
What powered land means
There is no formal definition. In practice, the term describes land where the power question has been answered, or answered far enough for a buyer to underwrite. The clearest example of the language in use is from a listed landowner. Harworth describes its sites in terms of accepted power connection offers, with the capacity stated in gigawatts across the portfolio. An accepted offer is a step beyond an application, and it is the point at which a site starts to be priced differently.
The distinction matters because the queue is the constraint. BCLP notes that connection queues can run for a decade or more in some corridors, including West London’s Data Centre Alley, and calls grid capacity the most critical site selection factor. Land that has already cleared that step is scarce, and the market prices it that way.
What powered land sells for
Reported prices show the premium. A Reuters investigation, reported by Resultsense in April 2026, cites a Savills estimate of £8m to £15m per acre for data-centre-suitable land, against £4.5m to £6m for standard London industrial land. The same report notes that in the US, Colliers puts powered land at up to 2.5 times other industrial pricing, and up to 3 times in northern Virginia and northern California.
These are estimates, and a per-acre figure hides the variable that matters, which is the capacity and the date attached to the connection. A site with a firm offer for a large load on a near date is a different proposition from a smaller site with a later one. Treat any headline price as a range, not a quote.
A recent disclosed transaction gives a sense of scale. Harworth reports a £106m two-plot powered land sale to Microsoft at Skelton Grange, with a development agreement covering enabling works, which it describes as its first hyperscale data centre transaction. The same update says it has signed an exclusivity agreement with an unnamed data centre provider for a second site with an accepted power connection offer, and that it is targeting conditional land sales across the rest of its pipeline.
Why supply is scarce
Demand for sites is wide. The Reuters report cites Barbour ABI counting 119 UK data centres in planning, on locations that include a disused car plant, an old paint factory and a retail centre near Heathrow. Most of those sites will not be built. DC Byte data in the same report shows that, of 61 UK projects tracked since late 2022, 7% are built or under construction, against 46% in Germany, 40% in France and 24% in the US.
The grid explains much of the gap. The report cites NESO identifying 140 projects totalling 50GW in its queue, with connection waits stretching to 12 to 15 years in some cases. A site that is already through the queue, or that holds an offer with a workable date, sits on the right side of that statistic.
How powered land deals are structured
Because the value depends on conditions that have not all been met, most deals are conditional. The pattern is visible in the market. Linklaters’ examples of powered land transactions include closings that are contingent on securing a grid connection and the key real estate and permitting approvals. Harworth describes the same approach for its own pipeline.
BCLP sets out the building blocks.
Acquisition route
BCLP describes multi-stage options, joint ventures, and flexible land rights designed to accommodate future changes in technology. For a landowner this means the sale price may be staged against milestones, and for a buyer it means paying for certainty as it arrives rather than all at the start.
Grid risk
BCLP says the grid agreement needs scrutiny of contestable and non-contestable works, phased energisation and curtailment clauses, so that temporary supply reductions do not undermine the financial assumptions. It adds that engagement with NESO and the network operators, including the Transitional Connection Management Process, is critical.
Planning route
BCLP notes that developers can opt into the Nationally Significant Infrastructure Projects regime for certainty, or stay with the local planning authority, with Section 106 agreements used to fund local infrastructure or skills programmes. The route chosen changes both the timetable and the consent risk the buyer is taking.
What buyers check before they commit
Diligence on powered land goes beyond the usual land checks. The areas that BCLP flags are these.
Grid capacity and the offer
The capacity, the date, the cost and who holds the offer. A buyer needs to see the offer, not a description of it, and needs to know whether it transfers with the land.
Title
Environment and water
Mandatory Biodiversity Net Gain, introduced in 2024, may require ecological assessments or purchased biodiversity units, and large schemes may need an Environmental Impact Assessment covering lifecycle carbon, water use and noise. BCLP also raises water rights where direct-to-chip liquid cooling is planned.
Planning and consent
Alignment with national policy and a credible case for community benefit matter for the local authority route. Consent has become a live risk this autumn. Microsoft has pulled out of a deal to anchor Nscale’s Loughton site after grid officials said power would not arrive until the 2030s, a reminder that a site is only as good as the date on its connection.
What a landowner or developer should have ready
A buyer will ask for the same short list every time. The connection offer, with capacity, date and cost. The planning position and route. Title, with covenants and easements checked. Site control, including any option the developer holds. And an honest account of what is not yet agreed. A pack that states the gaps plainly moves faster than one that hides them.
The mistake to avoid is pricing the land as if every condition has been met. Buyers will price the conditions anyway, and a number that ignores them tends to stall the conversation.
Armason: neutral introductions between sites, demand and capital
Armason introduces landowners and developers with powered sites to the operators, offtakers and capital partners looking for them, with no bias towards either side of a transaction. If you hold a site with a connection offer, or you are looking for one, we would like to hear from you.
This article is general market information. It is not legal, financial or investment advice, and prices quoted are estimates reported by third parties.
Related reading
· Data centre site selection in the UK: the new sequence in a power-first market
· Data centre grid connection in the UK: timelines, queues and what operators need to know
· Data centre development costs UK: what projects actually cost to deliver in 2026
· Why most UK data centre pipelines fail before they complete
Sources referenced in this article
· Linklaters: Powered land, an emerging strategy
· BCLP: Mastering powered land transactions for UK data centres
· Harworth Group: Harworth provides update on its data centre pipeline, 19 August 2026
· The Star (Telegraph report): Microsoft pulls out of UK data center deal with Nscale
