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Planning a project and stuck on the first proper question: is a bridging loan for property development the right tool, or do you need development finance? Ask five lenders and you’ll get five answers, mostly pointing at whichever product that lender happens to sell.
Here’s the honest version. Both products fund property projects, they overlap just enough to confuse everyone, and picking the wrong one is expensive in both directions. A bridge behind a heavy scheme runs out of money halfway. Development finance wrapped around a light refurb drowns a simple job in surveyors and paperwork. The difference between them comes down to one thing, and it isn’t the name on the loan.
We arrange both, from a panel of over 500 lenders, so we’ve got no product to push. This guide gives you the plain-English difference, the real costs, and a simple way to know which one your project needs. We’re clever like that.
The One-Question Test: How Heavy Are the Works?
Strip away the jargon and the choice is nearly always decided by the scale of what you’re doing to the property.
Light works? Bridging. Kitchens, bathrooms, redecorating, a layout reshuffle, cosmetic modernising of a tired house or flat. Nothing structural, nothing needing planning permission. A bridging loan hands you the money in one lump, quickly, and you crack on.
Heavy works? Development finance. Structural change, extensions that need planning, conversions into flats or an HMO of scale, and anything ground-up. Development finance releases money in stages as the build progresses, funds a large share of the build costs, and is priced for construction risk.
The grey zone in the middle (a chunky refurb with some structural work, a small conversion) is where lender selection genuinely matters, because some bridging lenders fund “heavy refurb” with drawdowns and some development lenders come down for smaller schemes. That’s exactly the judgement call we make with you on day one, free, before anything is signed.
What a Bridging Loan Does for a Development Project
A bridging loan is short-term finance secured on the property, typically 1 to 24 months, arranged in days rather than months. For developers, it earns its keep in four places:
- Buying the opportunity fast. The unmortgageable wreck, the probate house, the site that won’t wait. Speed is the whole point, and no product moves quicker.
- Auction purchases. The 28-day deadline is bridging’s home turf; our auction finance page covers lining up funds before you bid.
- Buying land before planning. Secure the site now with a bridge, gain consent, then move onto development finance for the build. Lenders will base the bridge on today’s value, not the value with permission, so budget your cash accordingly.
- Light and medium refurbishments. Buy, improve, then sell or refinance. One advance, sometimes with staged drawdowns for heavier refurbs, and a clear exit at the end.
What a bridge will not do is patiently fund eighteen months of construction. It’s one pot of money against the property’s current value, and when serious build costs start flowing out monthly, one pot runs dry.
What Development Finance Does Instead
Development finance is built for the construction phase. Three differences matter to you as the borrower.
The money arrives in stages. An initial advance against the site, then drawdowns as the build hits milestones, each signed off by a monitoring surveyor. Foundations, walls, roof, drawdown by drawdown. You pay interest only on what’s been released, which on a long build saves real money.
It’s sized against the end value. Lenders work from your GDV (gross development value, what the finished scheme will be worth) and typically fund most or all of the build costs plus a share of the site, commonly landing around 55% to 65% of GDV in total.
It expects a professional plan. Planning permission, build costings, a contingency, an experienced (or at least credible) team, and a clear exit: sale of the units or a refinance. If you’re newer to this world, our guide to housing development finance walks through the whole journey stage by stage, and if your plan is to keep the finished homes as rentals, our build to rent finance guide covers that route.
What Do They Cost? Straight Numbers
For 2026, as a working guide. A bridging loan for property development typically runs from 0.55% to 1.25% a month depending on loan-to-value, property condition and the works, plus a 1 to 2% arrangement fee, valuation and legals. Development finance is usually priced annually, typically from the high single digits all-in for experienced borrowers and rising for first-timers or higher leverage, plus arrangement and exit fees, the monitoring surveyor’s costs, and legals.
Don’t let the two pricing formats fool you. A bridge at 1% a month is roughly 12% a year, so development finance is often cheaper than bridging for the phase it covers, as well as better shaped. Where developers burn money is using the wrong one: a 12-month bridge funding a build that takes 16, refinanced in a hurry at penalty pricing. The comparison that matters is total finance cost across your whole project, and that’s the number we model with you before you commit. Want to rough out the bridging side? Our bridging loan calculator does the sums in two minutes.
A Worked Example: Same Street, Two Different Answers
House one is tired but sound: new kitchen, new bathroom, full redecoration, £40,000 of works over four months. Bought for £180,000 with a bridge at 0.85% a month, sold six months later at £265,000. Bridging was right: fast in, light works, quick exit, total interest around £9,200.
House two next door has planning for a two-storey extension and conversion into three flats: £160,000 of structural works over ten months. Fund that with the same bridge and you’d need the whole £160,000 sitting in the loan from day one, accruing interest for ten months, if a bridging lender would even advance it. Development finance releases the £160,000 in stages, charges interest only on what’s drawn, and has a surveyor keeping the build honest. Same street, completely different product.
That’s the whole decision in two houses: the works dictate the finance.
Can You Use Both on One Project? (Usually, Yes)
Most real development journeys use both, in sequence, and this is where planning ahead pays.
Bridge to buy the site quickly or pre-planning. Development finance for the build. Then, at the end, a third product most first-timers never hear about: development exit finance, which repays the development loan at practical completion at a cheaper rate, giving you time to sell the units at full price rather than racing a deadline. Arranged together from day one, each loan hands over cleanly to the next, with no expensive gaps and no lender discovering your plans late. Arranged separately in a panic, every handover costs you.
Speak To Someone Clever About Your Project
Send us the property, the works you’re planning and your numbers, and we’ll come back within 24 business hours with the honest answer: bridge, development finance, both in sequence, or “the margin’s too thin, don’t buy it”. Then we’ll arrange whichever is genuinely right, from a panel of over 500 lenders.
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. The works dictate the finance. We’ll make sure the finance never dictates the works. 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.
Frequently Asked Questions
For a genuine ground-up build, development finance almost always fits better, because staged funding matches how build costs actually arrive. Bridging can buy the plot and fund very small builds, but a full construction project on a single-advance bridge is how budgets die.
Bridging, comfortably: days to a couple of weeks, against several weeks for development finance with its valuations and build appraisal. That speed gap is exactly why so many projects bridge first and switch products second.
On a development bridge, typically 25% to 30% of the property's value. On development finance, expect to cover roughly 25% to 45% of total project costs, less where additional security helps. Experience and margin move both numbers.
For development finance, effectively yes: the facility is built around a consented scheme. Bridging doesn't need planning, which is why it's the standard tool for buying sites before consent is granted.
Yes. Bridging barely cares about experience if the exit is sound, and plenty of development lenders back first-timers with a sensible scheme and a good professional team. Pricing improves as your track record grows.
On a bridge, you rebridge or extend, ideally arranged six to eight weeks before the term ends rather than after. On development finance, well-structured facilities carry contingency and headroom from the start. Either way, the fatal mistake is silence: ring us early and options stay open.