Semi-Commercial Refurbishment Finance in 2026: Light Works, Heavy Works and the Exit

The two floors above a chemist on a Staffordshire high street have been stock rooms since 1998. Nobody has slept up there in a generation. The staircase comes up through the back of the shop, the windows are painted shut, and the only plumbing is a sink on the first-floor landing. The chemist trades well and pays 16,500 pounds a year on a lease with seven years left, and the freeholder wants out at 280,000 pounds. To the buyer this is not a shop with dead space above it. It is a shop with two one-bedroom flats above it that do not exist yet, and the difference between those two descriptions is roughly 200,000 pounds of end value. Semi-commercial refurbishment finance is the money that turns the first building into the second, and the first thing any lender will ask is not how much the works cost but which side of one line they fall.

Before we go further, who we are. Semi-Commercial Property Finance is a trading name of Lenzie Consulting Ltd (company number 08174104), a UK finance arranger and introducer and not a lender. Semi-commercial and mixed-use finance arranged for business and investment borrowers is unregulated lending and falls outside the Financial Conduct Authority’s regulated mortgage perimeter, so the business is not FCA authorised. Where an individual borrower will personally occupy the residential element of the property, the loan can come under regulated rules, and we refer those cases to a regulated firm. Every figure below is an indicative published band from semicommercialpropertyfinance.co.uk as of mid 2026, not an offer of finance.

In the episode below, Georgina explains why a staged works tranche is priced and drawn so differently from a plain bridge.

The line between light and heavy, and why it picks the lender

Refurbishment lenders sort every mixed-use project into one of two buckets before they look at a single number. Light refurbishment is cosmetic and non-structural: redecoration, kitchens and bathrooms, rewiring, replumbing, flooring, a new shopfront. It needs neither planning permission nor building regulations approval, and it usually has the building back on the market inside 3 to 12 months. Heavy refurbishment is anything structural, any change of use, conversion or extension, or any project that needs planning or building regulations sign-off. Turning stock rooms into flats is heavy every time, because it creates new dwellings and triggers building regulations on fire separation, sound insulation and means of escape.

The lender does not ask how big the refurbishment is. It asks whether the building needs planning, building regulations or a structural engineer, and that answer picks the desk.

The distinction matters because the two buckets are funded on different mechanics. A light refurbishment sits on a short bridge, sized on the property’s current value at up to 70 to 75 percent with the works structured in, and the works money is usually released as a single sum because the job is quick and the risk is low. A heavy refurbishment is a two-part facility: a day-one advance against the property as it stands, often net around 70 percent of value, plus a separate works tranche of up to 100 percent of the build cost, released in stages against a monitoring surveyor’s inspections. Both price at about 0.70 to 0.95 percent a month across our lender panel, but the heavy facility runs longer, 6 to 24 months, carries surveyor fees, and is tested against the projected end value as well as the day-one figure.

Get the label wrong and the case goes to the wrong desk: a light refurbishment lender declines the conversion, a heavy refurbishment lender overprices the redecoration. We confirm the bucket before anything is submitted.

Light works: the cosmetic refresh on a short bridge

The typical light case is a tired shop with a flat above that a term lender will not touch in its current condition: a thirty year old kitchen, pre-war wiring, a shopfront that needs replacing, two tenants on below-market rents. Nothing structural changes. The bridge funds the purchase and the refresh, interest is rolled up so there is nothing to pay while the works run, and the exit is a term mortgage on the improved, relet building or a sale.

On a 200,000 pound purchase the bridge reaches around 140,000 to 150,000 pounds on the day-one value, the works cost sits alongside, and the borrower brings 25 to 30 percent equity plus fees. Interest at 0.70 to 0.95 percent a month on a 150,000 pound facility is roughly 1,050 to 1,425 pounds a month, so a six month refurbishment carries about 6,300 to 8,550 pounds of rolled-up interest plus an arrangement fee of around 1.5 to 2 percent. Where a project genuinely keeps the building’s structure and use as they are, this is the cheaper route. Our page on light refurbishment finance sets out the full band.

Heavy works: converting the uppers to flats

Back to the chemist. Creating two one-bedroom flats out of two floors of stock rooms is a heavy refurbishment on every test: building regulations for the new dwellings, a separate street entrance so the flats do not share the shop’s staircase, a structural engineer for the new internal walls, and, depending on the local authority, a planning application or prior approval for the change of use. The lender funds it as value plus works.

The day-one advance is against the building as it stands, a trading chemist with dead space above, typically around 70 percent of that current value net of fees and rolled-up interest. The works tranche covers up to 100 percent of the conversion cost, but it is not handed over on day one. A monitoring surveyor visits at each milestone, confirms the work has been done to the value claimed, and the lender releases the next stage. Interest is charged only on money actually drawn, which is why a staged tranche costs less than its headline size suggests.

The chemist worked through: 280,000 pounds in, 480,000 pounds out

Here is the arithmetic on published bands. The purchase price is 280,000 pounds. The day-one advance at 70 percent net is 196,000 pounds, so the buyer funds 84,000 pounds of equity plus fees and stamp duty. The conversion into two one-bedroom flats is costed at 110,000 pounds, funded in full by the works tranche in three stages. The facility runs for 12 months at 0.85 percent a month.

Item	Figure
Day-one advance (70% of 280,000)	196,000 pounds
Works tranche, 100% of costs, staged	110,000 pounds
Interest on day-one advance (196,000 x 0.0085 x 12)	19,992 pounds
Interest on works, drawn progressively, average about 55,000 outstanding	about 5,600 pounds
Redemption at month 12	about 331,600 pounds plus fees and surveyor costs
End value: shop 190,000 plus two flats at 145,000	480,000 pounds

The finished building is worth around 480,000 pounds, the 200,000 pound difference from the opening paragraph. A term lender refinancing at 70 to 75 percent of the new value could advance 336,000 to 360,000 pounds, enough to clear the 331,600 pound redemption. The loan to value side of the exit works.

The income side is where heavy refurbishment exits get tested hardest. The chemist pays 16,500 pounds, and the two flats let at 750 pounds a month each, 18,000 pounds a year between them, for a combined rent of 34,500 pounds. Tested at the looser end of the band, 125 percent interest cover at an 8 percent stress rate, that supports a term loan of 34,500 divided by 1.25 divided by 0.08, which is 345,000 pounds, and the refinance clears the facility in full. Tested at the tighter end, 140 percent cover at a 9 percent stress rate, the same rent supports only about 274,000 pounds, a gap of roughly 58,000 pounds. Which end of the 125 to 140 percent band a case lands on depends on the lender, the tenant and the location, and it is the single biggest reason we model the exit before the day-one draw rather than after the last one.

The exit: refinance or sale, and what each needs

A term refinance needs three things the day-one lender did not: signed tenancies on the new flats, a revaluation of the finished building, and a rent that passes the interest cover test at whichever stress rate the term lender applies. Where that test binds, the options are to bring cash to the conversion, to accept a smaller term loan, or to negotiate a higher advance on a longer commercial lease.

A sale exit sidesteps the interest cover problem. On the chemist, the two flats can be sold on long leases at around 145,000 pounds each, 290,000 pounds together, with the shop retained or sold alongside. The title work is done during the refurbishment, not after it. Whichever exit is planned, the lender wants it evidenced at application, because the 6 to 24 month term is a hard stop. Our page on heavy refurbishment finance goes into the staged structure in more detail.

Where refurbishment ends and development begins

The scale of the works decides one more line. Reconfiguring, extending or converting an existing building is heavy refurbishment, funded on day-one value plus a works tranche. Knocking most of it down, adding floors, or building a new mixed-use block is development finance, sized instead on loan to cost and gross development value, at up to around 65 to 70 percent of cost and 60 to 65 percent of GDV. Flats built inside the existing envelope while the chemist keeps trading is refurbishment. Stripping the building to its frame and rebuilding it is development, on the same monthly band but with different lenders, drawdown mechanics and paperwork.

2026 outlook for semi-commercial refurbishment

Refurbishment pricing across our lender panel has stayed inside the 0.70 to 0.95 percent a month band through the summer, with the Bank of England base rate at 3.75 percent following the 30 July 2026 hold and the next decision on 17 September 2026. What has moved in 2026 is appetite for upper-floor conversions: with vacant space above high street units widespread and permitted development routes for commercial to residential change widened, heavy refurbishment lenders are more comfortable with the stock-rooms-to-flats project than three years ago, provided the borrower has a costed build, a monitoring surveyor and an evidenced exit. First-time converters remain fundable, though experience buys a keener rate.

FAQ

What counts as light refurbishment on a mixed-use property? Cosmetic, non-structural work that needs neither planning permission nor building regulations approval: redecoration, kitchens, bathrooms, rewiring, replumbing, flooring, a new shopfront. It is funded on a short bridge of 3 to 12 months at about 0.70 to 0.95 percent a month, with the works usually released as one sum.

Can I borrow 100 percent of the works on a heavy refurbishment? Often, yes. A heavy refurbishment facility typically combines a day-one advance of around 70 percent net of current value with a works tranche of up to 100 percent of the build cost, released in stages against inspections, with the total kept within a prudent share of the projected end value.

Is converting the flat above a shop into two flats heavy refurbishment? Yes. Creating new dwellings triggers building regulations and usually planning or prior approval, which puts it in the heavy bucket regardless of budget. It is funded as day-one value plus a staged works tranche over 6 to 24 months.

How do I repay semi-commercial refurbishment finance? By refinancing onto a term semi-commercial mortgage at 6.5 to 8.5 percent once the property is let and revalued, or by selling the finished asset or its split parts. The refinance is tested on combined rent at 125 to 140 percent interest cover, and we model that test before the facility completes.

Talk to us

If you are buying a mixed-use building that needs work, tell us what the work is and we will tell you which bucket it sits in. Start with light refurbishment finance for the cosmetic cases and heavy refurbishment finance for conversions and structural projects, and see also our guide to semi-commercial development finance if the scheme has outgrown the existing building.

All figures in this article are indicative published bands for UK semi-commercial and mixed-use finance in 2026, not an offer, a quote or a financial promotion, and any facility is subject to lender terms, valuation and full underwriting. This article was written by Matt Lenzie.