Data Centre Mortgages

What is a data centre commercial mortgage?

A data centre commercial mortgage is long-term secured debt against an operational, income-producing data centre. The structure mirrors a standard investment commercial mortgage, but the income that the lender underwrites is recurring revenue from master service agreements (MSAs) with rack-space and colocation customers, not annual rent on a lease. The asset is the building, the power infrastructure, the cooling plant, and the contracted income stream taken together.

The product is used in three main scenarios. First, refinancing development finance once the site is energised, commissioned, and signing customers, moving from short-term construction debt onto stable long-term mortgage terms. Second, equity release on an existing operating asset, freeing capital to fund the next site or pay down higher-cost debt. Third, acquisition finance, where an investor or operator buys an income-producing facility from a developer, fund, or distressed seller.

Suitable assets include independent edge data centres (often 1 MW to 5 MW), regional colocation facilities, modular and prefabricated sites, hyperscale-tenanted single-customer assets, and small portfolios of two to ten sites. FD Commercial arranges these from £1,000,000 across England, Scotland, and Wales.

Which UK lenders fund operational data centres?

The UK lender landscape for operational data centres splits into four tiers, and matching the deal to the right tier is half the work. UK clearing banks (the largest names) underwrite stabilised, high-covenant, hyperscale-tenanted assets at the lowest rates, typically £25m and above. Challenger banks and infrastructure debt funds compete for the £5m to £50m segment, where the operator has track record but the asset is regional or growth-stage. Specialist commercial lenders and life companies fund mid-sized sites with shorter-tenure customer agreements at higher rates but with more flexible covenants.

Asset-backed securitisation has emerged as the gold standard for portfolios. A £600m UK securitisation in 2024 backed two operational data centres in Wales, and a €640m German securitisation followed in 2025. ABS unlocks up to 70% LTV with the lowest long-term cost of capital, but only suits stabilised portfolios with diversified, investment-grade customers.

What we have seen over the last 18 months is a clear widening of appetite for edge and modular sites among challenger banks. The constraint we hit most often is not power or location; it is the operator wanting a 70% LTV against a single-customer site on a three-year MSA. Lenders price for that risk; they will not waive it.

What LTV and rates apply to a UK data centre mortgage in 2026?

LTV and pricing for UK data centre commercial mortgages are driven by four variables: tenant covenant strength, MSA term, asset stabilisation, and location. Stabilised assets with investment-grade tenants on five-year-plus MSAs achieve the highest LTV and lowest pricing. Earlier-stage operators with shorter MSAs accept lower LTV and higher rates.

Indicative LTV bands in 2026:

• Hyperscale-tenanted, stabilised, 10-year-plus MSA: 65% to 75% LTV, indicative rate from 5.75% per annum on senior bank debt.
• Regional colocation, mixed customer base, 5-year average MSA: 60% to 70% LTV, indicative rate 6.25% to 7.5% per annum.
• Edge data centre, single or two-customer base, 3-year MSA: 55% to 65% LTV, indicative rate 7.0% to 8.5% per annum.
• First-generation operator, one site, customers signing within 6 months: 50% to 60% LTV, debt fund or specialist commercial lender pricing.

Arrangement fees typically run 1% to 2.5% of the loan amount. Interest-only is standard on data centre mortgages, with the operator using positive operating cash flow for sinking-fund capex on plant replacement, network upgrades, and capacity expansion. All rates and figures are indicative and subject to lender assessment at the time of application.

How do lenders assess DSCR on a data centre asset?

Debt service coverage ratio (DSCR) is the single most important number in a data centre commercial mortgage application. The calculation is straightforward: net operating income divided by annual debt service. Net operating income means contracted MSA revenue (rack-space, power, network) less the operating costs the operator carries before debt: power purchase, plant maintenance, network connectivity, security, staff, insurance, and rates.

Minimum DSCR for UK data centre commercial mortgages is 1.25x to 1.35x. A lender wanting 1.30x DSCR is asking for net operating income to cover annual debt service by 30%. The cushion exists because lenders stress test cash flow against three real risks: power cost increases that erode operator margins, customer non-renewal at MSA expiry, and tenant covenant downgrade on key counterparties.

Stronger DSCR materially improves your terms. A site running 1.60x DSCR on a 7-year average MSA with two investment-grade anchor customers will price 50 to 100 basis points below a site running 1.30x DSCR on a single 3-year MSA. Lenders also pay close attention to MSA tenor: a 1.30x DSCR on a 10-year MSA is structurally different from 1.30x DSCR on a 2-year MSA, and pricing reflects that.

What does the lender ask for in due diligence?

The standard data centre lender data room contains nine document categories. Operators with a clean, complete data room move faster and price tighter than operators producing documents on demand.

• Customer MSAs: All signed agreements, with redactions for commercial sensitivity, plus a tenancy schedule showing customer, contract start, contract end, monthly recurring revenue, and termination rights.
• Three years of operating accounts: Audited where available, plus current management accounts and a forward 24-month operating forecast.
• Capacity and utilisation report: Designed capacity in MW IT load, currently sold capacity, available capacity, and the operator's pipeline of contracted but not-yet-energised customers.
• Power purchase agreement and grid connection: The PPA covering the site's electricity supply, the grid connection contract with the relevant DNO, and any backup or onsite generation capacity.
• Building survey and structural report: Full building survey, structural integrity report, and roof condition where applicable.
• Mechanical and electrical specification: Tier rating (Tier II to Tier IV), redundancy specification (N+1, 2N), UPS architecture, cooling design, and PUE benchmarks.
• Environmental Phase 1: A Phase 1 environmental survey covering ground conditions, contamination history, and water management. Any historic industrial use is flagged here.
• Planning, title, and legal: Planning consent and any conditions, full title pack, leases on the underlying land if not freehold, and any rights of access.
• Operator information: Director KYC, group structure chart, parent guarantor accounts where applicable, and any related-party agreements.

How does Critical National Infrastructure status affect lending?

UK data centres were designated Critical National Infrastructure on 12 September 2024, the first new CNI sector in nearly a decade since space and defence in 2015. CNI status sits alongside energy, water, telecommunications, and transport in the UK's critical infrastructure framework. The designation includes both physical data centres and the cloud operators that run on them.

What CNI status changes for lenders. Confidence in long-term policy stability improves; the government has signalled that data infrastructure is non-negotiable national capability. CNI status is one of the reasons UK clearing banks have moved more aggressively into the sector since late 2024, and one of the reasons life and pension companies are underwriting longer-tenor data centre debt at lower margins.

What CNI status does not change. Lenders still underwrite the individual asset on its income, covenants, MSA quality, and operating performance. CNI is a tailwind for the sector; it is not a substitute for a strong DSCR and a well-structured customer book on the deal in front of them.

Worked example: refinancing a 2 MW operational data centre

How we arrange your data centre mortgage

What we will not do

Two things are worth being clear on. First, we will not submit a deal we cannot place. If your DSCR, MSA tenor, or asset profile does not match available lender criteria, we will tell you on the first call and explain what needs to change. Second, we are not a hyperscale syndicated debt arranger. Deals at £100m and above need a different process; we will introduce capital partners where the right fit is institutional rather than commercial mortgage.

Frequently asked questions