A bridging loan for ground up development buys or secures a site before planning permission is granted, or before full development finance can be arranged. It gives developers speed and certainty at exchange, with refinancing onto a development finance facility once permission is confirmed and the build is ready to start.
We arrange this type of funding constantly, and the pattern never varies. A developer finds a site with strong potential, but the deal moves faster than the planning process or the development lender's paperwork. That is where a bridging loan earns its keep.
Speed is the whole point. Development finance underwriting takes six to eight weeks even on straightforward schemes, and that assumes planning is already in place. A vendor selling at auction or under pressure from their own lender will not wait that long. A bridging loan closes that gap and lets the developer secure the asset while everything else catches up. If you want the fundamentals first, our guide to what bridging finance actually covers is a useful starting point.
What this means in practice
Ground up development almost never starts with a development loan. It starts with a bridging loan that buys time, buys the site, or buys certainty.
Development lenders require planning permission, a fixed-price build contract, a professional team in place and a viable exit before they will release funds for construction costs. Most site acquisitions do not arrive in that state. Vendors want quick, unconditional completion. Auctions demand funds in 28 days. Options and conditional contracts expire before planning is decided.
A bridging loan fills that gap. It funds the purchase now, against the value of the land or existing building, while the planning application progresses in the background. Once consent is granted, the developer refinances onto a development finance facility that funds the actual build.
This is genuinely a two-stage strategy, not a shortcut. Treating it as a shortcut is where developers come unstuck, and we will come back to that.
We see this most often with sites bought at auction, where the legal pack shows an obvious redevelopment opportunity but no planning history. Buyers who assume they can sort finance later, once the hammer falls, find their options have narrowed considerably. Arranging the bridge before bidding, with a lender already comfortable with the site, puts a developer in a far stronger position on the day. This applies equally to sites in major regional markets, from bridging loans in Birmingham to smaller regional centres where auction activity is picking up.
How it works
The mechanics are straightforward. A bridging lender secures against the site or property as it stands today, typically at 60-70% loan to value depending on location and asset type, and releases funds quickly, often within two to four weeks.
The loan runs for a fixed term, usually 6 to 18 months, with interest either serviced monthly or rolled up and repaid at the end. Rolled-up interest is far more common on ground up development bridging loans, since the site generates no income and the developer does not want monthly payments affecting working capital during the planning stage.
Rates on this type of short-term property finance typically sit between 0.85% and 1.25% per month, depending on the strength of the site, the loan to value and how credible the planning strategy is. A clean site with an experienced developer and a strong planning consultant will price towards the lower end. A speculative purchase with no professional input on planning will sit higher, if a lender agrees to it at all. For a wider view of pricing across the market, see our breakdown of current bridging loan rates in the UK.
Arrangement fees are usually 1.5% to 2% of the loan, with an exit fee sometimes added instead of a higher rate, depending on how the lender structures its return. Check whether the exit fee applies regardless of how the developer exits, as some facilities charge it even on early repayment.
The exit is planned from day one. Either the developer refinances onto a development finance facility once planning is granted and a build contract is signed, or the site is sold on with the benefit of planning consent, which is a legitimate and profitable exit for developers who prefer to trade planning gain rather than build out.
Lenders underwriting the bridge will ask about that exit route before they lend, because a bridging loan with no credible way off is the single biggest red flag in this market. If you are weighing up options at this stage, take the time to get a bridging loan quote before committing to a lender.
Plan for delay as well. Planning committees slip, decisions get deferred, and consultation periods run over. A sensible approach builds in a term with some breathing room, or establishes early on whether the lender will consider an extension if planning takes longer than expected. Most will, provided the application is progressing and there is no fundamental problem with the site.
Typical scenarios
The scenarios below are illustrative — composite examples reflecting the shape of deals we typically arrange, with figures and details adjusted so no example describes one specific, identifiable transaction.
Numbers make this real, so here are two we see regularly.
A developer in the East Midlands identified a former commercial yard with strong potential for six townhouses. No planning permission existed yet, but the vendor wanted a 21-day completion. We arranged a bridging loan of £310,000 against a £520,000 site value, 60% LTV, over a 12-month term with rolled-up interest. Funds completed in 16 working days. Planning was granted in month nine, and the developer refinanced onto a development finance facility to fund the build, exiting the bridge in full.
The total interest cost on that facility came to just under £27,900 over the nine months it was actually drawn, rolled up and repaid at refinance. Against a projected gross development value of around £1.4 million once the six townhouses were built and sold, that cost was comfortably absorbed within the scheme's contingency, and the developer still secured the site on their own terms rather than losing it to a cash buyer.
Separately, a residential buyer in Reading found a bungalow on a large plot suitable for a self-build replacement home, but their mortgage lender would not lend on a property they intended to demolish. A bridging loan of £245,000 against a £410,000 purchase price, 59.7% LTV, over a 9-month term let them complete the purchase, submit planning for the new build, and exit either onto a self-build mortgage or a sale once consent was granted. This is common with bridging loans in Reading, where plot values and rebuild potential often outpace what high street lenders are comfortable with.
Planning was granted in month six, three months ahead of the facility's expiry, giving the buyer time to arrange a self-build mortgage without any pressure to rush the decision or accept a worse rate out of necessity. That kind of margin is exactly what a well-structured term should provide. We see similar patterns with bridging loans in London and the wider commuter belt, where plot scarcity pushes more buyers towards this route.
What lenders look for
Lenders want a clear, believable exit, a realistic valuation of the site as it stands, and evidence that the developer or investor has the experience and capital to see the project through.
Loan to value on pre-planning bridging loans typically sits between 55% and 65% of current market value, not the projected value with planning attached. Lenders are deliberately conservative here because planning is never guaranteed. Timescales from enquiry to funds usually run 2 to 4 weeks for a straightforward site with clean title, longer if there are access issues, overage clauses, or unregistered land to sort out. This pattern holds across the country, whether it is bridging loans in Norwich or larger regional cities.
Acceptable security includes bare land, sites with existing structures, and part-developed schemes. Lenders will always want to see a planning strategy document, even an informal one from a planning consultant, setting out the realistic prospects of consent and the likely timeline. They also want proof of the exit, whether that is a development finance agreement in principle, evidence of comparable sales for planning-consented land, or a signed pre-let or forward sale.
Working with the right team
First-time developers are not automatically excluded, but lenders will look more closely at the wider team. A strong architect, an established planning consultant and a contractor with a track record on similar schemes can go a long way to offsetting limited personal experience. Bringing that team to the table early, before the application even goes in, smooths the whole process considerably.
Personal guarantees are standard on this type of lending, and lenders will also want to understand the developer's exposure elsewhere, particularly if other sites or schemes are already geared. A statement of assets and liabilities, along with a clear track record of previous projects where relevant, helps build the case quickly rather than dragging out underwriting with back and forth requests.
The most common reason we see these applications declined is a weak or vague exit. Developers who assume planning will simply be granted, without a fallback if it is refused, delayed or granted with unexpected conditions, put lenders in a difficult position. Having a genuine plan B, whether that is a reduced scheme, a sale of the site as is, or an alternative use, makes a real difference to how a lender views the whole proposal. It is also worth comparing how different lenders approach this risk, and our roundup of the best bridging loan lenders in the UK is a good place to start.
Working with a broker who understands both the bridging loans and development finance markets matters considerably here. The right lender for the bridge is not always the right lender for the eventual development facility, and structuring the exit properly from the outset avoids a scramble later. That is precisely the sort of coordination we handle day to day at Boxx Finance.
