The Bank of England has asked market participants about UK data centre projects financed before any tenant has agreed to lease them, Bloomberg reported on 5 November. The questions form part of the central bank’s wider effort to understand lending to a sector whose capital needs have grown sharply with the AI build-out.
What happened
Speculative financing refers to loans for facilities whose construction starts before an occupier commits to rent the finished building. According to Bloomberg, which cited people familiar with the matter, the Bank is not opposed to such lending in principle, although it is widely regarded as higher risk. The Bank declined to comment on the report.
The Bank’s supervisors began reviewing data centre lending last year after rapid growth in the market raised concerns about how closely the companies involved depend on one another.
The key numbers
The record of the Financial Policy Committee’s September meeting, published on 30 September, set out the scale of the debt involved. It cited a Morgan Stanley estimate that around $700bn of data centre capital expenditure between 2026 and 2028 would be funded by private credit, and that global AI-related debt issuance had reached about $450bn by early September, more than double the total for 2025.
The committee warned that rising leverage, opacity and what it called circular arrangements could make risks harder to assess and could “amplify losses if expectations disappoint”. It also noted that riskier credit markets, including parts of private credit, remain vulnerable to tighter financing conditions.
Lender behaviour is already shifting. The Bayes UK Commercial Real Estate Lending report, published in October, found that four lenders had stopped lending to data centres, and that debt funds supplied almost half of the speculative finance advanced for alternative assets, including data centres, in the first half of 2026. Owners of poorly located or lower-quality facilities are reported to be finding credit particularly hard to secure.
Context
The scrutiny comes as large UK schemes multiply. Blackstone is leading a £10bn project in north-east England, and earlier this week Brookfield and the Qatar Investment Authority agreed to invest £2.5bn in a data centre development with Drax at Selby. The Bank for International Settlements has separately warned that thin disclosure of deal terms, especially on long-dated hyperscaler leases with exit options, raises the risk of the same asset being pledged more than once.
Why it matters for modular and edge in Europe
Closer scrutiny of speculative lending is likely to make it harder and more expensive to finance large campuses built ahead of demand. That strengthens the case for phased, modular construction, where capacity is added in smaller blocks once customers sign, reducing the amount of capital at risk before revenue arrives.
For edge and smaller modular operators, tighter credit cuts both ways. Projects backed by signed tenants and shorter build times may look more attractive to cautious lenders, but smaller developers that rely on debt funds for early-stage capital could face higher costs if those funds are pushed to price risk more conservatively. Any formal supervisory guidance from the Bank would be watched closely by lenders across Europe.
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