A short term loan while awaiting planning permission is a bridging loan used to purchase or hold a site or property before a planning decision is confirmed, letting a landlord or developer secure the asset and fund holding costs without waiting for the local authority. It works because a bridging loan is secured against the property itself rather than the outcome of the application, so lenders can move quickly even when the future use of the site isn't yet settled.
This is one of the most common reasons landlords and developers come to us. Planning timescales rarely match the pace of a property deal. A vendor wants completion in six weeks, the site needs a change of use or a full planning consent to make the numbers work, and mainstream lenders won't touch it until the council has made a decision. Bridging fills that gap.
We see this pattern constantly across the UK, from small residential conversions in Lancashire to larger mixed-use sites on the edge of towns in the Midlands. The story is nearly always the same. A good opportunity has appeared, the clock is ticking on the purchase, and the planning system is moving at its own pace regardless of anyone's completion date. Bridging loans exist precisely to solve that mismatch. If you're weighing up a similar purchase, you can get a bridging loan quote before committing to a completion date.
It's also worth being clear about what this type of lending isn't. It isn't a way of funding speculative land purchases with no planning history and no realistic prospect of consent. It isn't a substitute for proper planning advice, and it isn't a guaranteed route to a higher value uplift if the application stalls or gets refused. Treated correctly, though, it's one of the most useful tools available to anyone trying to move at the speed the market demands while planning catches up in the background.
There's also a broader market backdrop worth understanding. Local authority planning departments across England have faced years of budget pressure, staff turnover, and rising application volumes, which means statutory timescales are treated increasingly as targets rather than guarantees. A householder application that in theory should be decided within eight weeks can easily drift to twelve or fourteen, and a major application with a thirteen week target can run considerably longer once committee dates, consultation responses and additional information requests are factored in. Anyone relying on short-term property finance to bridge this gap needs to go in with realistic expectations rather than the statutory minimum in mind.
Brokers who work in this space day to day tend to build a mental map of which councils move quickly and which don't, and that knowledge feeds directly into how a loan term gets structured. It's not unusual for a borrower to assume their local authority will behave like the last one they dealt with, only to find the new area has a completely different culture around delegated decisions, committee referrals and pre-commencement conditions. Getting this wrong at the loan structuring stage is one of the more expensive mistakes we see repeated, whether the site is in Bedford or Hackney.
What this means in practice
In practice it means you can exchange and complete on a property purchase, or refinance an existing asset to release capital, while your planning application is still sitting with the local authority. The loan is priced and structured around the property's current value and your exit route, not around a planning consent that hasn't arrived yet.
Most lenders in this space will lend against the existing use value of the site, sometimes with an uplift if planning is well advanced or a positive pre-application response has been received. That's an important distinction. A loan against land with a submitted application and a supportive planning consultant's opinion behaves very differently, commercially, to a loan against a bare field with no planning history at all. This is much the same logic that applies to bridging finance for change of use properties, where the strength of the planning position drives the terms available.
For landlords this often shows up as a portfolio purchase where one unit needs a change of use to unlock full rental value, or a refurbishment that needs planning consent for an extension before the property can be relet at a higher rent. For developers it's usually a site acquisition where planning is the single biggest value driver and the bridging loan buys time to get that consent secured before development finance takes over.
The honest view is that this only works well when there's a credible, evidenced route to planning success. Lenders aren't gambling on speculative applications with no supporting history. They want to see that the odds are reasonably good, even if the decision hasn't landed yet.
There's a middle ground worth mentioning too. Plenty of deals we arrange sit between a bare site and a fully consented one. A borrower might have had informal conversations with a case officer, commissioned a heritage or ecology report because the local authority flagged a concern, or received written pre-application advice that's broadly encouraging without being a formal decision. Lenders read these signals carefully, and the stronger the paper trail, the better the terms tend to be.
We also see landlords using this structure defensively rather than offensively, meaning they already own the asset and simply need to release capital to fund the planning process itself, including architects' fees, planning consultant costs, and the various surveys a local authority might demand before it will even validate an application. That's a slightly different use case but the mechanics are near identical.
A further, less obvious practical use is bridging the gap between exchange and completion on a development site where the vendor has agreed a long stop date but won't wait indefinitely. Some developers use a short term loan simply to secure the right to complete once planning is resolved, effectively buying an option over the site while the application progresses in parallel. This is more common on larger sites where the vendor themselves is aware planning will take time and has structured the contract accordingly, and it shares a lot in common with how bridging loans for ground-up development are typically structured.
It's also worth flagging that landlords sometimes use this type of loan to release equity from an unencumbered or lightly mortgaged property specifically to fund the deposit and fees on a separate acquisition elsewhere, rather than to fund works on the property being charged. The planning risk in that scenario sits on the target property, while the security sits on the one being refinanced, and lenders are generally comfortable with this as long as both properties are clearly identified and valued correctly at the outset.
How it works
The mechanics are straightforward once you understand what the lender is actually underwriting. You borrow against the property's current, unimproved value using a first or second charge, the loan runs for a fixed term (typically 6 to 18 months), and you repay it through a defined exit, most commonly a sale, a refinance onto a development loan once consent is granted, or a refinance onto a standard buy to let mortgage once the works are complete.
Interest is usually rolled up or retained rather than paid monthly, which matters here because a site awaiting planning often isn't generating income yet. That rolled-up interest gets added to the loan and repaid at the end, so your monthly cash flow isn't strained while you wait on the council.
Loan to value is set against the property's existing use or as-is value, generally between 55% and 70% depending on the asset and location. If the planning outcome is genuinely uncertain, some lenders will lend more conservatively and factor in a fallback exit that doesn't depend on consent being granted at all, such as a sale of the site with planning potential rather than a completed development.
Legal work tends to move faster than a standard mortgage because there's no lender panel bureaucracy in the way most bridging lenders operate. Solicitors acting on both sides usually need two to four weeks to complete due diligence, title checks and drafting, and a realistic full timeline from first enquiry to funds in account is three to six weeks for most cases, sometimes longer if there's a complex title, multiple charges to redeem, or a lender requiring additional planning evidence before they'll commit.
Boxx Finance structures these deals so the exit isn't entirely dependent on planning being granted within the loan term. That's a detail brokers who don't do this regularly often miss, and it's the difference between a loan that gets refinanced smoothly and one that runs into a costly extension. If your purchase timeline is tight, it's worth speaking to a broker directly to get a bridging loan quote.
Pricing on these loans typically sits somewhere between 0.55% and 1.1% per month, depending on the strength of the planning position, the loan to value, and the borrower's track record with similar projects. A borrower with several completed developments behind them and a strong solicitor relationship will usually get sharper terms than someone approaching this for the first time, even where the underlying property is identical.
Arrangement fees generally run from 1.5% to 2% of the loan amount, and most lenders will also charge a valuation fee upfront, commonly between £600 and £1,500 depending on the size and complexity of the site. Exit fees are less common in this part of the market but do still appear on some products, so it's worth checking the offer letter carefully rather than assuming every lender prices the same way.
One point that catches people out is that not every bridging lender will touch planning risk at all. Some products are explicitly marketed as clean exit bridging, meaning the lender wants a straightforward sale or refinance with no planning uncertainty in the mix. Knowing which lenders in the market are genuinely comfortable with planning risk, rather than just tolerant of it on paper, is a big part of what a broker who works this space regularly brings to the table.
To put the figures into context, on a £150,000 loan at 0.85% per month over a 12 month term with interest rolled up, total interest would come to roughly £15,300, plus an arrangement fee of around £2,250 at 1.5%, plus a valuation fee, plus legal costs on both sides which typically run from £1,000 to £2,500 depending on complexity. All of this needs to be factored into the borrower's overall budget alongside the professional planning fees, rather than treated as a separate, later consideration.
It's also worth understanding how extensions work if planning takes longer than expected. Most lenders will offer a formal extension of three to six months if requested before the original term expires, usually at a broadly similar rate but with a fresh extension fee, commonly 0.5% to 1% of the loan. Requesting this early, ideally six to eight weeks before the term ends, tends to produce far better terms than waiting until the loan is technically in default and negotiating from a weaker position.
Some lenders will also consider a staged drawdown structure where part of the facility is released on day one to fund the purchase, with a further tranche released later to cover planning consultant fees, architect costs or survey work as they're incurred. This can reduce the overall interest bill compared with drawing the full amount upfront, though it does add a small amount of administrative complexity that needs to be weighed against the saving.
Typical scenarios
The scenario below is illustrative, a composite example reflecting the shape of deals of this kind, not a specific, identifiable transaction.
Consider a landlord in Nelson who spots a former commercial unit above a row of shops, priced at £180,000, with strong potential to convert to three residential flats under permitted development rights, though the local authority requires a full planning application because of a conservation area overlay. The landlord needs to complete within five weeks to secure the purchase ahead of another buyer.
A bridging loan of £126,000 is arranged at 70% loan to value against the existing commercial value, over a 12 month term, with interest rolled up rather than paid monthly. The planning application is submitted in week two, a decision is expected within eight to ten weeks under the local authority's standard timescale, and the exit is a refinance onto a development loan once consent is granted, with a fallback exit of a straight sale of the unit with planning history if the decision runs long or comes back unfavourable. Completion on the bridging loan itself takes four weeks from initial enquiry to funds landing, which is a realistic timescale for this kind of purchase with a straightforward title.
That fallback exit is the part most first-time borrowers overlook, and it's exactly what a lender will interrogate hardest before offering terms.
Working through the numbers a little further, at a rate of 0.75% per month the rolled up interest over 12 months on this £126,000 loan would come to roughly £11,340, plus an arrangement fee of around £1,890 at 1.5%. If planning is granted within the expected window, around week ten, the landlord would then need to arrange the refinance onto a development facility promptly, since every additional month on the bridging loan adds further rolled up interest that eats into the eventual profit on the scheme.
A second, equally common scenario involves a small developer in a market town in the East Midlands who already owns a site with an existing agricultural building and wants to convert it to two dwellings under a Class Q permitted development right. The site is valued at £220,000 in its current state, with a projected gross development value of £520,000 once converted. The developer needs £90,000 to complete the purchase of an adjoining parcel of land that will improve access and unlock additional value, but the Class Q application is still awaiting a decision from the council's planning department. This kind of agricultural conversion follows a similar underwriting logic to a bridging loan for barn conversion projects, where planning risk on an agricultural building is a central part of the assessment.
In this case a bridging loan is arranged at 65% loan to value against the combined site, with the lender taking comfort from a positive pre-application response and a planning consultant's letter estimating an 80% likelihood of approval within the statutory eight week window. The loan term is set at 15 months rather than the minimum needed, specifically to absorb any delay if the council requests further information or the application is deferred to committee. The extra runway costs slightly more in rolled-up interest but avoids the far more expensive scenario of an emergency extension fee if the decision overruns.
On a £143,000 loan at 65% loan to value, priced at 0.8% per month over the 15 month term, the total rolled up interest would sit at around £17,160, a meaningful sum, but still considerably less than the cost of a rushed emergency extension, additional legal fees and potential loss of the wider development opportunity if the loan ran out of term before the Class Q decision arrived.
A third scenario worth mentioning involves refinancing rather than purchase. A landlord in the West Midlands already owns a parade of three shops with flats above, worth £310,000 as they stand, and wants to release £140,000 to fund a rear extension and loft conversion that will add two additional flats, subject to planning. Because the property already generates rental income from the shops, the lender is comfortable with a slightly higher loan to value of 68%, and structures the facility with a shorter nine month term because the planning application for the extension has already been submitted with strong local authority officer support noted at pre-application stage, a pattern we also see regularly in areas such as Gateshead.
In this refinance example, the existing rental income from the shops gives the lender additional comfort that even if the planning application for the extension were delayed, the landlord has a means of servicing part of the interest rather than relying entirely on roll up. Some lenders in this position will offer a part-serviced structure, where a portion of the interest is paid monthly from rental income and the remainder is rolled up, which can improve the overall pricing slightly compared with a fully rolled up facility.
What lenders look for
Lenders want clear evidence that the site or property has a realistic route to value uplift, and that you have a credible exit even if planning takes longer than expected or comes back with conditions. This is the section where deals genuinely stand or fall.
Typical loan to value ranges for planning-stage bridging sit between 55% and 70% of existing use value, occasionally stretching to 75% where a lender is confident in the planning outlook and the borrower has a strong track record. Full planning consent already secured, rather than merely applied for, will usually get you better terms and a higher advance because the risk profile drops significantly.
| Planning stage | Typical LTV | Pricing impact |
|---|---|---|
| No application submitted, early feasibility | 50-60% | Higher rate, cautious lenders |
| Application submitted, pending decision | 60-70% | Standard bridging rate |
| Full planning consent granted | 65-75% | Sharper rate, wider lender pool |
Security is usually a first charge over the property or land itself, though second charge bridging is available where an existing mortgage remains in place and the numbers still stack up. Lenders will want a valuation from a RICS surveyor experienced in development sites, not a standard residential valuer, because the report needs to comment on planning risk and comparable land values.
On the exit side, expect to be asked for a planning consultant's opinion or pre-application response, evidence of your development or refurbishment budget, and a named fallback exit that doesn't rely purely on planning being granted. The most common reason applications in this space get declined isn't poor credit or a weak property, it's an exit strategy that only works if everything goes right. Lenders want to see what happens if planning is refused, delayed, or granted with conditions that change the numbers.
Realistic timescales from first enquiry to completion run three to six weeks for most cases, assuming clean title and a cooperative solicitor. Rushed same-week completions do happen but they're the exception, usually only where the borrower has used the same lender before or the legal work is genuinely minimal.
Beyond the headline numbers, lenders will also look closely at your track record. A first time applicant with no development experience isn't automatically declined, but they will usually be asked for more supporting information, potentially a slightly lower loan to value, and sometimes a personal guarantee even where the borrowing is done through a limited company. Experienced developers with two or three completed schemes behind them tend to move through underwriting faster and with fewer conditions attached.
Local authority track record matters too, more than most borrowers expect. Some councils are known among planning consultants and lenders alike for being slow, inconsistent, or prone to deferring applications to committee rather than deciding under delegated powers. A lender who has funded several deals in a particular local authority area will often have a view on how that council tends to behave, and that view can influence both the loan term offered and the pricing.
Property type also affects appetite. Residential conversions and extensions under permitted development rights are generally viewed more favourably than large scale commercial to residential schemes or anything involving listed building consent, simply because the planning risk is lower and more predictable. Sites requiring environmental surveys, flood risk assessments, or heritage impact statements will usually take longer to get funded and may see a slightly more conservative loan to value applied as a result.
Underwriters will also ask about your professional team. Who is the architect, is the planning consultant known to have a track record with the specific local authority in question, and has the surveyor who valued the site previously worked on similar schemes nearby. These questions aren't box ticking exercises, they genuinely feed into how confident a lender feels putting money behind a scheme that hasn't yet received formal approval.
It's also worth noting that lenders differentiate between different types of planning application when assessing risk. A householder extension or a straightforward change of use application carries far less uncertainty than a major application involving affordable housing contributions, section 106 agreements or a community infrastructure levy liability. The more moving parts in the planning process, the more conservative a lender's approach tends to be, both on loan to value and on the term offered.
Common mistakes
The single biggest mistake is assuming planning consent will be granted on schedule and building a loan term with no margin for delay. Local authorities regularly run over their statutory eight or thirteen week determination periods, and appeals, if needed, can add months. Borrow for longer than you think you need, or agree extension terms upfront, rather than hoping the timeline holds.
A close second is failing to price in the cost of a fallback exit. If your only plan is a smooth refinance once consent lands, and consent doesn't land, you need to know in advance what a sale of the site would realistically achieve and how long that sale might take. Building this into your numbers from day one, rather than scrambling for it once a loan term is close to expiring, makes a material difference to how a lender views your application and how comfortable they are extending terms if needed.
Underestimating professional fees is another common trap. Planning consultants, architects, ecologists, heritage specialists and highways engineers can all add up quickly, particularly on sites with any complexity at all. Borrowers who forget to factor these costs into their overall funding requirement often find themselves short midway through the process, needing to go back to the lender for additional facility at a point when their negotiating position is weaker.
Some borrowers also make the mistake of choosing a lender purely on headline rate without checking whether that lender is genuinely comfortable with planning risk. A cheaper rate from a lender who gets nervous the moment an application is deferred, or who insists on immediate repayment if a decision date slips, can end up costing far more than a slightly higher rate from a lender who understands how planning timelines actually work in practice.
Finally, many borrowers underestimate how much a strong paper trail helps. Keeping copies of pre-application correspondence, planning officer emails, committee reports and any supporting statements from planning consultants isn't just useful for the planning process itself, it's exactly what a lender wants to see when deciding how much comfort they can take around the eventual outcome. Borrowers who arrive at the lending stage with this evidence already organised tend to get faster decisions and, often, slightly better terms than those who leave it to chance.
Another mistake worth flagging is treating the valuation as a formality. Because these valuations need to comment on planning risk and comparable land values rather than simply confirming a bricks and mortar figure, borrowers sometimes get an unwelcome surprise if the valuer takes a more cautious view of the site's prospects than the borrower or their planning consultant did. Speaking to the lender about which valuers they use, and ideally providing the valuer with the same supporting planning evidence given to the lender, helps avoid a mismatch between expectation and reality.
Some borrowers also fail to communicate proactively with their lender once the loan is in place. If a planning decision is deferred to committee, or the local authority requests further information partway through the determination period, letting the lender know as soon as this happens, along with a realistic revised timeline, tends to produce a far more constructive conversation than going quiet and only reappearing when the loan term is about to expire. Lenders who work regularly in this space understand that planning delays happen, but they want to see that the borrower is managing the process actively rather than simply hoping it resolves itself.
Working with a broker who arranges this type of lending regularly tends to smooth out most of these pitfalls before they become a problem. Knowing which lenders will look favourably at a particular local authority, which will accept a pre-application letter as sufficient comfort, and which insist on full consent before they'll even quote, saves a huge amount of wasted time chasing the wrong options. That knowledge, built up over repeated deals across the country, is often the real value a broker adds beyond simply finding the cheapest headline rate.
