Housing Development Finance

Last updated: 4 August 2026

Found a site with potential? Planning to convert that tired house into flats? Ready to build for the first time, but every lender’s website reads like it was written for someone who’s already built forty?

Housing development finance sounds complicated because the industry enjoys making it sound complicated. Senior debt, GDV, stretched facilities, drawdown schedules. Strip the jargon away and it’s simple: your project has stages, and each stage has a product built for it. Buy the site. Do the works. Sell what you’ve built, or keep it. Fund each step with the right tool and the money side almost takes care of itself. Fund it with the wrong one and you’ll either run out of cash mid-build or pay building-site rates on houses that are already finished.

You don’t need to become a finance expert to develop property. You need someone on your side who already is. We arrange every type of housing development finance below from a panel of over 500 lenders, we’ll tell you which ones your project actually needs, and we’ll tell you straight if the numbers don’t stack. We’re clever like that.

Before Anything Else: Will Your Project Make Money?

One bit of jargon is worth learning, because every lender will use it on you when you apply for housing development finance: GDV, gross development value, meaning what your finished project will be worth.

Here’s the sum lenders run in the first five minutes, and you should run before you offer on any site. Take your GDV. Subtract the site cost, the build cost, and the cost of the finance itself. What’s left is your profit, and lenders want to see a healthy cushion of it, because that cushion is what absorbs the surprises. And there are always surprises.

Send us those four numbers before you commit to a site and we’ll sense-check them the same working day. It’s the cheapest advice you’ll ever get: free, and occasionally it saves you from buying the wrong site altogether.

Step One: Buying Your Site (Or Your Wreck)

Good opportunities don’t hang around. The site with planning potential, the probate house that needs gutting, the auction lot guided suspiciously low: none of them will wait three months for a mortgage that wouldn’t be granted on them anyway.

This is short-term territory. A bridging loan buys the property in days or weeks, in whatever state it’s in, no kitchen and no planning permission included. If you’re buying under the hammer, the 28-day deadline is exactly what auction lending is built for, and our auction finance page covers the golden rule: get your funding agreed before you bid, not after.

One honest heads-up on land: if the site doesn’t have planning permission yet, lenders will lend against what it’s worth today, not what it might be worth with consent. Expect to put more cash in at this stage, and treat any planning uplift as your profit, not your deposit.

Step Two: Funding the Build

Now the main event, and the heart of housing development finance. How you fund the works depends on how heavy they are, and picking the right product here is where we save borrowers the most money.

Doing up an existing property? A refurbishment bridge covers cosmetic and moderate works: kitchens, bathrooms, reconfiguring layouts, an HMO conversion. It’s quick to arrange and sized against what the property will be worth when you’re done. Our bridging finance page covers how fast this can move.

Building from the ground up, or structurally converting? That’s development finance proper. It works differently from any loan you’ve had before, and the difference is the point: the money is released in stages as the build progresses, with a surveyor signing off each stage. Foundations in, drawdown. Walls up, drawdown. It protects you as much as the lender, because nobody hands you two years of build costs on day one to lose sleep over.

Which do you need? The honest rule of thumb: if your works need structural change or planning permission, it’s development finance. If it’s paint, plumbing and layout, it’s a refurb bridge, and it’ll be cheaper and faster. Plenty of borrowers come to us asking for the wrong one. We’ll tell you which is which before anything is signed, because putting you in the expensive product isn’t clever, it’s lazy.

Worried you won’t qualify because it’s your first project? You almost certainly can. Plenty of our lenders back first-time developers with a sensible scheme and a good team of builders and professionals around them. Experience gets you sharper pricing; it isn’t the price of entry.

Step Three: The Finish Line (Where Profits Quietly Leak Away)

Here’s the stage nobody warns first-time developers about, so we will.

Your houses are built. They look wonderful. They’re on the market. And your development loan is still running, at build-phase pricing, with a term that’s about to expire while your buyers dawdle through conveyancing. Every extra month now comes straight out of your profit, and the pressure to cut prices grows with it.

The fix is called development exit finance: a cheaper loan that pays off your development facility once the scheme is finished, resets the clock, and lets you sell at full price instead of fire-sale price. It can even release some of your locked-up profit early, so you can move on your next site while this one sells.

If you take one thing from this whole guide, take this: plan your finish-line funding at the start, not when the letters from your lender turn frosty. We set it up alongside the build finance so the handover just happens.

Step Four: Sell, Keep, or a Bit of Both

Before anyone lends you a pound, they’ll ask how the story ends. There are three good answers.

Sell everything. The sales repay the loan, the profit is yours, and you go again with a bigger deposit.

Keep everything. Refinance onto a normal mortgage and let the houses out. Our buy-to-let mortgages page covers single lets and HMOs, and if your scheme includes a shop or office, our commercial mortgages page handles the mixed bits.

The blend. Sell enough units to clear the debt, keep the rest for rental income. For a lot of our borrowers, this is the answer that builds real long-term wealth.

There’s no wrong choice, but there is a wrong time to choose: after the build. Decide early, because it changes which lender and structure fit best from day one.

What Does Housing Development Finance Cost?

Straight numbers, as a 2026 guide. Short-term bridging for the purchase runs from roughly 0.55% to 1.25% a month depending on the property and how much you’re borrowing. Development finance for the build is priced annually, typically from the high single digits, with experience and a strong margin earning better. Exit finance at the end runs from around 0.65% a month, noticeably cheaper than the build loan it replaces. On top of any of them, budget for arrangement fees of 1 to 2%, valuation and surveyor costs, legal fees, and our broker fee, which is only charged once we’ve found you a workable solution.

Don’t compare headline rates; compare the total finance cost across your whole project, start to finish. That’s the number that decides your profit, it’s the number we model with you before you commit, and it’s the number a cheap-looking loan with slow drawdowns and a punishing extension clause can quietly wreck. Want to rough out the short-term stages now? Our bridging loan calculator does the sums in two minutes.

Speak To Someone Clever About Your Project

Send us the site, your build costs and your plan, and we’ll come back within 24 business hours with the honest picture: what each stage needs, what the whole thing costs to fund, and whether your margin genuinely stacks. Or a straight “don’t buy that site”, if that’s the truth. It’s happened, and those borrowers are usually the most grateful ones.

No fees until we’ve found you a solution, and you’ll speak to a named advisor from the first call, not a triage team. Your project deserves better than guesswork. We’re clever like that.

Call 0800 102 6758 or request a callback.

Your property may be repossessed if you do not keep up repayments on your mortgage or any other debt secured on it.