Light vs Heavy Refurbishment in 2026: Where Lenders Draw the Line

Two builders’ quotes land for the same three bedroom semi in Stoke-on-Trent. Both come to about £48,000. Both cover a rewire, a new consumer unit, a kitchen, a bathroom, plastering throughout and flooring. The only difference is one line near the bottom of the second quote: a steel beam priced in to take out the wall between the kitchen and the dining room. To the landlord reading them, that line buys a better layout for roughly the same money. To a lender it is the line that moves the project from one product to another. It changes the monthly rate, changes what the leverage is measured against, changes how the works money reaches the builder, and shortens the list of lenders prepared to look at the case at all. On a nine month project it is worth roughly £9,500. Nobody mentions that at the quote stage.

Refurbishment Loan, a trading name of Lenzie Consulting Ltd (company number 08174104), is a UK finance arranger and introducer rather than a lender. Bridging and refurbishment finance secured on investment property is unregulated lending sitting outside the Financial Conduct Authority’s regulated mortgage perimeter, and the business holds no FCA authorisation because the products it arranges are unregulated. It does not arrange regulated bridging, residential mortgages, or any loan secured on a property the borrower or an immediate family member lives in or intends to live in; those enquiries go to a regulated firm. Every figure below is an indicative range, confirmed only in a formal offer, never on a website.

In the episode below, Georgina walks through how the classification is made and what it does to a facility.

The classification happens before the pricing

Most investors approach this backwards. They pick a property, price the works, then ask what finance costs. The lender does it in the other order. Before any desk quotes a rate it reads the schedule of works and decides which side of the line the project sits on, because everything downstream flows from that answer. The rate is an output of the classification, not an input to it.

There is no statutory definition of either term. Each funder writes its own, which is why two desks can look at the same schedule and reach different conclusions. What they share is the underlying logic: light refurbishment is cosmetic and non-structural work that needs no planning permission, while heavy refurbishment is structural, changes the use of the building, or requires planning permission or building regulations sign-off. Everything else is detail around that sentence.

The three tests behind the label

Structure. Does the work alter the building itself? Openings in load bearing walls, chimney breast removals, underpinning, extensions, loft and basement conversions all fail this test. One steel is enough on most desks.

Permission. Does the project need planning consent or a change of use? A dwelling becoming flats, a shop unit becoming residential, a house becoming a licensable house in multiple occupation in an Article 4 area: all heavy, whatever the finish schedule looks like.

Scale against value. How big is the spend relative to what the property is worth today? A common threshold treats works above roughly half of current value as heavy even when every individual line is cosmetic, because at that point the facility is mostly funding a building programme rather than an asset that already exists.

Pass all three and the project is light. Fail any one of them and expect the heavy label, with the pricing and mechanics that come with it.

What the label changes, line by line

Across our lender panel the light band runs 0.75 to 0.99 percent a month, with facilities from £75,000 to £5 million over 3 to 18 months, leverage up to 75 percent loan to value on the day-one figure, and up to 100 percent of the works funded in arrears. The heavy band runs 0.85 to 1.15 percent a month, with facilities from £100,000 to £5 million over 6 to 24 months, leverage capped at 75 percent of loan to gross development value, and the works released in stages against a quantity surveyor’s sign-off.

Dimension	Light refurbishment	Heavy refurbishment
Monthly rate	0.75 to 0.99 percent	0.85 to 1.15 percent
Leverage basis	75 percent LTV, today’s value	75 percent LTGDV, finished value
Works release	up to 100 percent, in arrears	staged, QS certificate each time
Facility range	£75,000 to £5,000,000	£100,000 to £5,000,000
Term	3 to 18 months	6 to 24 months
Surveyor	valuer only	valuer plus monitoring surveyor

The leverage basis is the item people miss. LTV and LTGDV are not two ways of saying the same thing. Seventy five percent of a £240,000 house is £180,000 today. Seventy five percent of a £330,000 finished value is £247,500 in total across the whole facility, day one money and works money added together. On a project with a large uplift the heavy basis is more generous overall; on a project with a modest uplift it is a ceiling that bites, and the borrower funds the gap in cash.

The label is not a description of your building work. It is a price, a leverage basis and a lender list, settled before you borrow a penny.

The same house, priced twice

Take the Stoke semi. Purchase at £240,000, works at £48,000, borrowing £228,000 in both cases. Arrangement fee 1.75 percent of the facility in both cases, which is £3,990.

Priced light, without the steel, at 0.89 percent a month over 9 months. Day one advance of £180,000 costs £1,602 a month, so £14,418 across the term. The £48,000 works tranche is released in arrears around month four and carries five months of interest at £427 a month, another £2,136. Interest £16,554, plus the fee, gives £20,544.

Priced heavy, with the steel in the schedule, at 0.99 percent a month over 12 months. The same £180,000 day one advance now costs £1,782 a month, so £21,384. The works arrive as four staged tranches of £12,000 at months three, six, nine and twelve, each certified before release, which produces £2,138 of interest on drawn funds. Add a monitoring surveyor: an initial appraisal at £750 and four site visits at £450 each is £2,550. Interest £23,522, plus the fee, plus monitoring, gives £30,062.

Same building, same £228,000, roughly £9,518 apart. The steel did not cost £9,518 to install. It cost that much to finance.

Grey areas are a placement question

Three situations sit on the line often enough to be worth naming.

A single steel in an otherwise cosmetic schedule is the most common. Some desks hold the light classification where the structural element is minor and building control signs it off; others will not. That is not a debate to have with one lender, it is a reason to put the case in front of the part of the panel whose definition fits.

Converting a dwelling to a small house in multiple occupation with no building work beyond a fire door upgrade is light on many panels, and heavy on all of them the moment an Article 4 direction or a sui generis planning position applies. Check the planning constraint before assuming a price.

A cosmetic schedule costing 60 percent of current value splits the market almost evenly. Half the desks classify on works content, half on the cost ratio. On a £150,000 property with a £90,000 refurbishment, that split is worth more than the rate difference on any single line of the quote.

Forcing the label is the expensive mistake

Trimming a schedule of works to win light pricing does not survive contact with the process. The valuer inspects, the monitoring surveyor visits, and on a heavy project the certificate cycle exposes the real scope within weeks. A facility pulled at stage two, with the property open to the weather and a contractor waiting, costs multiples of the rate saving that prompted it.

The route that works is duller. Classify honestly, get the schedule priced properly, then compete the correct panel on price and mechanics. Where a project genuinely sits near the boundary, we place it with the desks whose written definition covers it, which is a placement exercise rather than an argument. That is the substance of where lenders draw the line between light and heavy refurbishment, and it is the first question we ask on any new enquiry.

The 2026 outlook

The Bank of England base rate stood at 3.75 percent after the July 2026 decision, and short-dated refurbishment pricing has tracked that stability rather than moving with it, because monthly bridging rates are set far more by security quality, leverage and borrower track record than by the base rate itself. What has moved in 2026 is the classification threshold. Several desks have tightened the cost ratio test as build costs rose, which pushes projects that would have been light in 2024 into heavy pricing on the same schedule of works. The practical response is to price the works before agreeing a purchase, not after, so the finance cost in your appraisal is the one you will actually pay.

FAQ

Does one steel make a project heavy refurbishment? On most of the market, yes. Structure is the first test lenders apply, and a beam replacing a load bearing wall is structural work by any definition. A minority of desks will hold the light classification where the structural element is small, contained and signed off under building regulations, which is why the case is worth placing rather than assuming.

What is the difference between LTV and LTGDV on a refurbishment loan? LTV measures the loan against the property’s value today, and light facilities are sized at up to 75 percent of that. LTGDV measures the whole facility, day one advance plus works, against the gross development value once the project is finished, and heavy facilities are capped at up to 75 percent of that figure. A project with a big uplift usually borrows more on the LTGDV basis; a project with a small uplift usually borrows less.

Can a cosmetic refurbishment still be classified as heavy? Yes, on scale. A schedule of works costing more than roughly half the property’s current value is treated as heavy by a good part of the market even when nothing structural is happening, because the facility is then funding a programme rather than an existing asset. Other desks classify strictly on works content and hold it light.

Why does heavy refurbishment cost more than the rate difference suggests? Because the rate is only part of it. Heavy facilities usually run longer, which is more months of interest, and they carry a monitoring surveyor’s appraisal fee plus a fee per site visit. On the worked example above the rate gap of 0.10 percent a month accounted for less than a third of the £9,518 difference; term length and monitoring made up the rest.

Talk to us

If you have a schedule of works and no idea which side of the line it falls on, send it over. We will tell you how the panel is likely to read it and what that means for price. Start with where lenders draw the line between light and heavy refurbishment, then look at the mechanics of light refurbishment finance and heavy refurbishment finance side by side. See also the refurbishment loan calculator if you want to run your own arithmetic first.

All figures in this article are indicative ranges for UK refurbishment finance in 2026, confirmed only in a formal offer, and are not an offer, a quote or a financial promotion. Any facility is subject to lender terms, valuation and full underwriting. This article was written by Matt Lenzie.