Small warehouse finance

What counts as a small warehouse or last-mile unit?

We treat anything up to roughly 25,000 sq ft as a small warehouse, which covers most of the units on a typical UK industrial estate. Within that band sit several distinct formats: the starter unit of 1,000 to 3,000 sq ft let to a local trade or storage user, the mid-range unit of 5,000 to 15,000 sq ft serving wholesalers and growing businesses, and the urban logistics unit at the top of the band, positioned close to a population centre so vans can reach customers quickly. Most sit in Class B8 storage and distribution use, with some shading into light industrial workshop space.

Last-mile units deserve their own mention because they are the part of the market that has changed most. Online retail needs goods held minutes from the customer rather than hours, which has turned ordinary small warehouses in urban locations into logistics infrastructure. The buildings themselves are often unremarkable; the location does the work. For finance purposes the distinction matters because lenders increasingly recognise urban logistics as a category with durable occupier demand, and a small warehouse that genuinely serves last-mile delivery is presented to lenders on that basis.

To be clear about where this page sits: it covers the smaller end of the warehouse market. We also arrange finance across the larger end through our distribution and logistics warehouses pages, and for the very largest single big-box sheds, measured in the high hundreds of thousands of sq ft, our sibling site Warehouse Property Finance leads and we work alongside it.

How do you finance buying a small warehouse for sale?

The route depends on who is buying and what state the unit is in. An investor buying a let warehouse uses a commercial investment mortgage, sized on the net rent with interest cover as the binding test and loan to value indicatively up to 65 to 70 percent of valuation. An owner-occupier buying premises for their own business uses an owner-occupier commercial mortgage, where affordability is underwritten on the accounts of the trading business and lenders will often look favourably on a business replacing rent with loan repayments on a freehold it controls.

Vacant units and auction purchases need different tools. A vacant warehouse produces no income to service a term loan, so the purchase typically runs on bridging finance, indicatively from around 0.75 percent per month, while a tenant is found or the buyer's own business moves in, after which the position refinances onto a term mortgage. Auction purchases compress the timetable further, since completion is usually required within a fixed window, and we arrange bridging that exchanges and completes inside it.

Because small freehold warehouses are scarce and contested, being able to move quickly is often worth more than a marginally cheaper rate. We line up the debt before offers go in wherever we can, so the buyer bids knowing what they can borrow and on what terms.

How much can you borrow against a small warehouse?

Indicatively, investment lending runs up to 65 to 70 percent of valuation with term rates from around 6 percent, and lot sizes in this category run from around £250k for a starter unit to £10m for a larger urban logistics asset. The figure that actually sizes the loan is interest cover: lenders test that the net rent covers interest with headroom, so a unit let at a full rent supports more debt than the same unit let cheaply, and rising rents across the catchment feed directly into borrowing capacity at refinance.

The relationship between passing rent and estimated rental value is where small warehouses often surprise borrowers positively. Many units are let on older leases at rents below what the unit would achieve today, and lenders will take a view on that reversion, especially where a rent review or lease expiry is near and letting evidence on the estate is strong. We assemble that evidence, comparable lettings, estate-level supply and the unit's specification, because it is the difference between a loan sized on yesterday's rent and one sized on the income the asset genuinely supports.

How do lenders underwrite last-mile and urban logistics income?

Lenders underwrite small warehouse income on the asset and the catchment more than the covenant. Most tenants at this size are SMEs without rateable financial strength, so the question is not whether the tenant could fail but how quickly the unit would re-let if it did. A unit on an estate with consistently low vacancy, in a catchment where occupiers outnumber available units, carries re-letting risk that lenders can price comfortably even on a short lease. The weighted average unexpired lease term still matters, and a longer commitment helps, but re-letting depth is the real security.

Asset fundamentals carry the rest of the weight. Eaves height, loading doors, yard depth for vans and lorries, power capacity and office content all decide which occupiers a unit can serve, and energy performance now sits alongside them: minimum energy efficiency standards make the EPC rating a lending point, since a unit that cannot be legally let without works is a weaker security. We put the EPC position, any planned works and the unit specification into the lending pack up front, because a clean answer on fabric and compliance keeps credit committees focused on the income.

Can an owner-occupier get a mortgage on a small warehouse?

Yes, and owner-occupiers are a large share of the buyers we arrange finance for. The mortgage is underwritten on the trading business: lenders look at the accounts, the sustainability of earnings and the sense of the move, typically a business swapping rent for ownership of premises it already depends on. Deposit requirements are broadly the mirror of investment lending, with loan to value indicatively up to 65 to 70 percent of valuation, and terms can run long enough to keep repayments comparable to the rent being replaced.

The case often improves when the building works harder. A unit with surplus space can carry a subtenant alongside the owner's business, and a yard or mezzanine can add capacity without moving. Lenders take a practical view of these hybrid arrangements provided the core affordability stands on the trading business. Where a business is buying through a pension arrangement or a holding company, structure affects which lenders fit, and we match the borrower structure to the lenders genuinely comfortable with it.

When does it make sense to refinance a small warehouse?

Three moments recur. The first is the exit from bridging: a unit bought vacant or at auction refinances onto a term mortgage once it is let or occupied, replacing monthly bridging pricing with term rates from around 6 percent indicatively. The second is the maturity or repricing of an existing loan, where we run the refinance competitively rather than letting the incumbent lender set terms unchallenged. The third is equity release: where rents have risen and the valuation has followed, a refinance at the same loan to value frees capital for the next purchase, which is how many borrowers move from one unit toward a portfolio.

Preparation drives the outcome. A refinance lands best when the rent is documented cleanly, the EPC position is current, and the letting evidence for the estate supports the valuation. We prepare that pack and place it with lenders active on small industrial stock at the relevant lot size, because the same unit can price very differently depending on which credit team reads it.