A £1.35 million development facility for the conversion of a group of agricultural barns to four dwellings near Padstow, Cornwall, arranged at 70% LTC and 59% LTGDV over a 12-month term under a Class Q prior approval. Class Q sits in a strange corner of the planning system, the lender pool that will fund it is a fraction of the market that funds full-consent schemes, and the document that carried this whole deal was a structural sufficiency report most developers do not commission until it is too late.
| Location | Near Padstow, Cornwall |
| Loan amount | £1,350,000 development facility |
| Gearing | 70% LTC, 59% LTGDV |
| GDV | £2,300,000 |
| Term | 12 months |
| Product | Development finance for a Class Q conversion, staged drawdowns |
| Exit | Sale of the four completed dwellings |
The situation
The client had bought a group of stone and steel-frame barns on the edge of a hamlet a few miles inland from Padstow, with prior approval under Class Q for conversion to four dwellings. He was a builder by trade with two completed conversion projects behind him, this was his first Class Q scheme, and the numbers were sound: total project cost of £1.93 million including the barns at £780,000, a conversion budget of £940,000, and the balance in fees, contingency and finance costs, against a GDV of £2.3 million supported by sales of converted barns within the parish over the previous two years.
He came to us after two lenders had declined. Neither declined on the numbers. Both declined on the consent, because the words Class Q on a planning document shrink the lender pool faster than almost anything else in residential development, and what we have seen across the conversion cases we arrange is that developers routinely mistake a decline on the planning route for a decline on the deal.
What makes Class Q different
Class Q is a prior approval, and a prior approval is a narrower thing than a planning permission. The right to convert exists only if the building qualifies, the works must amount to conversion rather than rebuilding, and if the structure turns out to be incapable of carrying the conversion without works that go beyond what the class allows, the consent can fall away with the building half stripped. That is the specific risk lenders price, and it is why a Class Q file gets read differently from a full consent for the same four dwellings.
The recent widening of Class Q has brought more of these schemes to market, and every quarter we see at least one where the developer has exchanged on a barn before anyone with a structural qualification has looked at the frame. My advice on any Class Q purchase is to commission the structural engineer's sufficiency report before you approach a lender, and ideally before you exchange, because that report is the difference between a lender underwriting a conversion and a lender underwriting a gamble on what is under the cladding. This client had a full sufficiency report confirming the steel frame and the stone barn were both capable of conversion within the scope of the approval, with the engineer's methodology appended, and that single document did more work than anything else in the pack.
Why the incumbent lenders could not do it
The first decline came from the client's own bank, which does not fund agricultural conversion at all. The second came from a development lender whose credit policy excludes prior-approval schemes as a class, regardless of the engineering evidence, which tells you the decline was written years before this barn was ever on the market. Most lenders still read Class Q as a problem rather than a consent. The market that remains is small but genuine, a handful of specialist development lenders who will fund Class Q where the structural evidence is strong, the developer can build, and the values are supported.
Our job was matching the file to that shorter list, and the presentation mattered, so I put the sufficiency report, the engineer's methodology, the prior approval decision notice and a condition-by-condition commentary from the planning consultant at the front of the pack rather than burying them behind the appraisal, because with Class Q the lender's first question is never about the numbers.
The structure
The facility completed at £1.35 million, with a day-one tranche against the barns and the conversion budget drawn in monthly stages certified by the monitoring surveyor. Gearing sat at 70% LTC and 59% LTGDV, the money was priced in the high single digits annualised with an arrangement fee inside the usual 1 to 2 percent range, and the contingency was set slightly heavier than a new-build equivalent would carry, which is standard on conversion work where the building keeps its secrets until the strip-out.
The 12-month term wrapped a nine-month conversion programme with a three-month sales tail, which is tighter than we would run on a larger scheme, and it worked here because two of the four dwellings had informal buyer interest from within the parish before the facility completed. Conversion schemes sell on character. The valuer supported the GDV on the strength of the recent barn sales nearby, with the usual caution applied to the second-home element of that market.
How it completed
First enquiry to credit-approved terms took twelve working days, most of it spent getting the structural pack in front of the right people. Valuation and the monitoring surveyor's appraisal ran over the following three weeks, and legals took another three, helped by the fact that the title was clean and the prior approval conditions were few. The facility completed just inside seven weeks from first enquiry, and the strip-out started the following Monday.
The frame behaved. The engineer's report was borne out on site, the works stayed within the scope of the approval, and the first two dwellings went under offer before practical completion, with the remaining two selling inside the tail and the facility repaid within the term.
The outcome
A £1.35 million development facility at 70% LTC and 59% LTGDV on a Class Q barn conversion that two lenders had already declined, completed in under seven weeks because the structural sufficiency evidence was commissioned early and presented first. Four dwellings converted within the scope of the prior approval, two under offer before practical completion, and the facility repaid by unit sales inside the 12-month term.
Frequently asked questions
Can you get development finance on a Class Q barn conversion?
Yes, but from a much smaller group of lenders than a full-consent scheme attracts. Several development lenders exclude prior-approval schemes as a matter of policy, so the case needs to go to the specialist lenders who fund Class Q, supported by strong structural evidence that the building can be converted within the scope of the approval.
What is a structural sufficiency report and why do lenders want one?
It is a structural engineer's assessment confirming the existing building is capable of carrying the conversion without works that go beyond what Class Q permits. Because the prior approval can fall away if the works amount to rebuilding, lenders treat the report as the core underwriting document on a Class Q file, and commissioning it before approaching lenders shortens the process considerably.
What LTC can a developer get on a Class Q conversion in 2026?
Specialist lenders will fund up to around 70% of cost on a well-evidenced Class Q scheme with a capable developer, which is where this facility sat. Contingency requirements tend to run heavier than on new build, because conversion work carries more unknowns in the existing structure, and gearing on the GDV is usually held below the levels a full-consent scheme can reach.
Why did other lenders decline this scheme?
Neither decline was about the numbers. One lender does not fund agricultural conversion at all and the other excludes prior-approval consents as a class, which is common across the market. A decline on the planning route says nothing about whether the deal is fundable, and this case completed at full ask with a lender whose policy fits Class Q.
How long does development finance take on a barn conversion?
This facility ran from first enquiry to completion in just under seven weeks, with terms agreed in twelve working days. The structural pack drives the timetable on Class Q, so a developer who arrives with the sufficiency report, the decision notice and the planning commentary already assembled will complete weeks faster than one who commissions them after terms are issued.
Rates and terms quoted are indicative and subject to change. Actual terms depend on individual circumstances, the scheme, security and lender appetite at the time of application. Your property may be repossessed if you do not keep up repayments on a mortgage or any other debt secured on it.
We arrange development finance for barn conversions and Class Q schemes across the UK, matching the case to the small group of lenders whose policy actually fits prior-approval consents.
Call 03300 100315