Development Finance Rates in 2026: The Indicative Rate Card

Most developers come to us asking one question first: what are the development finance rates right now, and what will my scheme actually cost. It is a fair place to start, because the rate sits at the centre of every appraisal. Get it wrong by a point or two and a scheme that looked like a tidy profit can turn into a thin one. The honest answer is that there is no single number. There is a rate card, a set of structures, and a method for working out where your project lands on it.

Development finance rates are the cost of the money you borrow to buy a site and build it out, expressed as an annual percentage on senior debt or a monthly percentage on shorter-dated facilities. They are not plucked from the air. They price off SONIA, which tracks the Bank of England base rate, and the base rate sets the floor under the cost of the money. With the base rate held at 3.75% since the December 2025 cut, the fourth cut of 2025, the floor has come down from where it sat through much of 2024, and that has fed through into where lenders pitch their margins on top.

This article is the rate card. We will lay out the full table of structures and indicative rates for 2026, show how development finance pricing is actually calculated on the lower of loan to cost and loan to GDV, walk the leverage ladder so you can see how each extra layer lifts your blended cost, explain how interest is charged, list the fees that sit beyond the rate, and run a worked example end to end. One thing to be clear on before we go further: we are a finance arranger and broker, not a lender, and we are not FCA authorised because commercial development lending is unregulated. Everything here is indicative market commentary for UK property in 2026, never an offer.

The 2026 rate card

Here is the shape of the market as we see it this year. Senior development finance, the main layer of debt that sits first in line for repayment, runs at roughly 9 to 12% pa. Stretch senior, where the lender pushes the loan higher up the scheme, comes out as a blended rate above plain senior. Mezzanine, which sits behind the senior debt, prices above senior and often carries a coupon plus a share of the profit. JV equity is different again: it is a profit share rather than a rate, because the money is going in as risk capital alongside yours. And bridging-style short-dated finance, used for quick site purchases or to cover a gap, runs at about 0.65 to 1.0% per month.

Where you land inside the senior band of 9 to 12% depends on the scheme. A clean, well-margined project with a developer who has built before, at sensible leverage, sits nearer the bottom. A project pushing the leverage caps, in a softer sector, with a tighter margin over cost, sits nearer the top. The rate card is a starting grid, not a fixed price list.

How development finance pricing is calculated

The single most useful thing to understand is how lenders size the loan, because the size drives the rate. Sizing is the lower of two caps. The first is loan to cost, or LTC, which is usually 65 to 70% of the total cost of the scheme including land and build. The second is loan to GDV, or loan to gross development value, which is usually 60 to 65% of the finished value. The lender takes whichever of those two numbers is smaller and lends to that. A scheme that pushes the upper end of either cap is asking the lender to take more risk, so it carries a higher rate.

This is why two developers can quote the same project and come away with different costs. One has a build cost that keeps the LTC comfortable. The other has a generous GDV that makes the loan to value look fine but a thin cost base that pushes the LTC cap. The lower-of-two test catches the weaker line every time, and the pricing follows.

The leverage ladder and how it lifts the rate

Think of the capital stack as a ladder. At the bottom rung, senior debt covers 65 to 70% of cost. Add stretched senior and you climb to 75 to 80%. Layer mezzanine on top of the senior and you reach 85 to 90%. Bring in JV equity and you can go up to 100%, with the developer putting in little or no cash of their own.

Every rung up the ladder lifts the blended cost of capital. The senior money is the cheapest because it is repaid first. Each layer above it is repaid later and takes more risk, so it charges more, whether that is a higher coupon, a profit share, or both. Borrowing to 90% of cost is not the senior rate with a bit added. It is the senior rate on the senior slice, plus a markedly pricier rate on the mezzanine slice, blended together. The more leverage you take, the higher that blend climbs. That is the trade you are making: less cash in, more cost out.

The headline rate is only half the cost: the rest is set by how much leverage you take, how the interest is charged, and the fees that sit beyond the rate.

How interest is charged: retained versus serviced

There are two ways the interest gets paid. Retained interest is deducted from the loan up front and held back by the lender, so you do not write a monthly cheque. Serviced interest is paid monthly out of your own cashflow as you go. Most ground-up development uses retained, sometimes called rolled-up, interest, because a building site does not produce income to service a loan.

Here is the catch that trips people up. Rolled-up, retained interest forms part of the facility, which means it sits inside the loan-to-cost calculation from day one. The interest you will pay over the term is effectively borrowed alongside the build cost, so it eats into your headroom under the LTC cap. A higher rate does not just cost more at the end. It takes up more of your borrowing capacity at the start. This is one reason a clean appraisal with a sensible margin matters so much: it leaves room for the rolled-up interest without breaching the caps.

The fees beyond the rate

The rate is not the whole cost. On top of it you will pay an arrangement fee of 1 to 2% of the loan, charged by the lender for putting the facility together. Then there are the third-party costs: the valuation, the monitoring surveyor who signs off each drawdown against build progress, and the legal costs on both sides. None of these show up in the headline percentage, but they are real money, and they belong in your appraisal from the first draft. When we quote a scheme, we set out the all-in cost, not just the rate, so there are no surprises at completion.

What drives your rate

Pull all of this together and a short list of factors decides where you sit. Leverage comes first: higher LTC or LTGDV costs more. Then the strength of the appraisal and the margin over cost, because a fat margin gives the lender comfort and a thin one does the opposite. Then the developer’s track record, since a builder who has delivered before is a safer bet. Then the asset and the sector, because some property types are easier to value and sell than others. And finally the exit, whether you are selling units, refinancing onto a term loan, or letting and holding. A clear, credible exit pulls the rate down. A vague one pushes it up.

A worked example

Take a scheme with a £3m GDV and £2.2m of total cost. The lender tests senior at 70% of cost, which is £1.54m. It also tests the loan to GDV cap at 65%, which is £1.95m. Sizing is the lower of the two, so the maximum senior loan is £1.54m. The rest, £660,000, is the developer’s day-one equity. If that developer wanted to put in less cash, the next step would be a stretched senior or a mezzanine layer on top of the £1.54m, which would lift the blended rate above the plain senior figure. The lower-of-two test, the leverage ladder, and the blended cost all show up in one simple sum.

Which lender camps set the rate

The market is not one pool of money. Broadly, there are clearing banks, which offer the keenest senior rates but the tightest criteria and the most cautious leverage. There are specialist development lenders, which price a little higher but move faster and stretch further up the cost. There are debt funds and challenger lenders, which sit higher again on rate but will take on the schemes the banks pass over. And there are mezzanine and equity providers, who sit behind the senior debt and charge for the extra risk. We will not name an individual lender, because the right camp depends entirely on your scheme and your timeline, and the names that suit one project are wrong for the next.

How we get you the best rate

Our job is to get you the lowest sensible blended cost, not just the lowest line on a single term sheet. In practice that means two things. First, maximise sensible senior leverage before reaching for the pricier layers, because every pound of cheap senior money you can draw is a pound you do not borrow at a mezzanine rate. Second, present a clean appraisal with a sensible margin over cost, a credible build programme, and a clear exit, because that is what moves you down the senior band from 12 toward 9. We compare the camps, we structure the stack so the cheap money does the heavy lifting, and we quote the all-in cost so you can underwrite the deal honestly. If you want the longer version on senior development finance and where it fits against mezzanine finance, talk to a development finance specialist and we will walk your numbers with you.

FAQ

Are you a lender? No. We are a finance arranger and broker. We introduce your scheme to the lender whose terms fit it best. We do not lend our own money, and commercial development lending is unregulated, so we are not FCA authorised.

What is the typical development finance rate in 2026? Senior development finance runs at roughly 9 to 12% pa, with bridging-style short-dated facilities at about 0.65 to 1.0% per month. These are indicative bands, not offers, and your scheme will land somewhere inside them based on leverage, appraisal strength, track record and exit.

Why is my rate higher than the bottom of the band? Usually leverage. Pushing the upper end of the loan-to-cost or loan-to-GDV cap asks the lender to take more risk, so the rate climbs. A thinner margin over cost, a less proven track record, or a softer exit all push it up too.

Does the arrangement fee come on top of the rate? Yes. Expect an arrangement fee of 1 to 2% of the loan, plus valuation, monitoring surveyor and legal costs. We quote the all-in figure so your appraisal carries the true cost from the first draft.

Talk to us

If you want the full breakdown for your own project, read our guide to development finance rates and then send us your numbers. We will size the senior debt on the lower-of-two test, tell you honestly where you sit on the band, and structure the stack so you pay the lowest sensible blended cost.

All figures in this article are indicative market commentary for UK property in 2026 and are never an offer of finance. This article was written by Matt Lenzie.