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Development finance rates in the UK have stabilised in 2026 after a period of sharp increases through 2022–2023. The base rate plateau and improving lender competition have brought pricing back to more manageable levels — but the range between the cheapest and most expensive lenders remains significant, and the factors that drive your individual rate are not always obvious. This guide covers current rates, what moves them, and how to get the best deal for your scheme.
Current Development Finance Rates — June 2026
7.0%–8.5% p.a.
Best-in-class rates. Experienced developer (3+ schemes), clean residential scheme, LTGDV below 60%, strong GDV evidence, major city or commuter town location. Typically challenger banks or institutional lenders.
8.5%–10% p.a.
Mid-market rates. Developer with 1–2 completed schemes, residential or mixed-use, LTGDV 60%–70%, good comparables. Specialist development lenders and some challenger banks.
10%–12% p.a.
Higher-risk pricing. First-time developer, LTGDV above 70%, commercial scheme, complex project type, weaker market location, or unusual asset class. Specialist funds and alternative lenders.
💡 Critical point: Development finance interest is charged on drawn funds only — not the full facility. A £1,500,000 facility drawn over 12 months in stages might accrue interest on an average balance of £900,000. This significantly reduces the true interest cost versus the headline rate on the full facility.
What Affects Your Development Finance Rate
| Factor | Lower Rate | Higher Rate |
|---|
| Developer track record | 3+ completed schemes | First-time developer |
| LTGDV | Below 60% | Above 70% |
| Scheme type | Residential for sale | Commercial / specialist |
| Loan size | £1m+ | Sub-£500k |
| GDV evidence | Strong sold comparables | Thin or dated comps |
| Location | Major city / high demand | Remote / low demand |
| Lender type | Challenger bank | Specialist fund |
| Exit certainty | Pre-sales / off-plan sales | Speculative sales |
Understanding LTGDV and How It Affects Your Rate
LTGDV (Loan to Gross Development Value) is the single most important variable in development finance pricing. It measures how much of the end value the lender is exposed to — and therefore how much risk they're taking. The relationship between LTGDV and rate is direct and significant:
| LTGDV | Rate Impact | Typical Profile |
|---|
| Below 55% | Best available rates | Substantial equity contribution or land already owned |
| 55%–65% | Standard market pricing | Most typical development finance deals |
| 65%–70% | 20–50 bps premium | Tighter equity — may need mezzanine to plug gap |
| Above 70% | Specialist lenders only | Mezzanine finance territory |
The True Cost — Beyond the Headline Rate
The annual interest rate is only part of your total cost of development finance. A complete picture includes:
- Arrangement fee: 1%–2% of the total facility (not just drawn funds)
- Exit fee: 0%–1% on redemption (some lenders, not all)
- Monitoring surveyor: £500–£1,500 per visit × typically 4–8 visits on a 12-month project = £2,000–£12,000 total
- Valuation: £1,500–£5,000 depending on scheme complexity
- Legal fees (both sides): £4,000–£10,000 combined
Worked example — £2,000,000 facility over 14 months
| Cost Item | Amount |
|---|
| Facility size | £2,000,000 |
| Interest (9% p.a. on avg drawn balance of £1.2m) | £126,000 |
| Arrangement fee (1.5%) | £30,000 |
| Monitoring surveyor (6 visits × £1,000) | £6,000 |
| Valuation | £3,500 |
| Legal fees (both sides) | £7,000 |
| Total cost of finance | £172,500 |
| As % of facility | 8.6% |
Lender Types and What They Cost
| Lender Type | Rate Range | Speed | Flexibility |
|---|
| Challenger banks | 7%–9% p.a. | 4–8 weeks | Low |
| Regional / specialist banks | 8%–10% p.a. | 3–6 weeks | Medium |
| Specialist dev lenders | 9%–11% p.a. | 2–4 weeks | High |
| Private / family office funds | 10%–13% p.a. | 1–3 weeks | Very high |
Cheapest isn't always best. A challenger bank saving you 1.5% p.a. but taking 3 weeks longer to complete, during which your land option lapses or build costs increase, can easily cost more than the interest saving. Your broker's job is to balance rate, speed, and flexibility for your specific situation.
How to Get the Best Development Finance Rate
- Use a specialist whole-of-market broker — direct-to-lender approaches typically get worse rates than through an experienced broker with volume relationships
- Build your track record — even one completed scheme materially improves your pricing
- Contribute more equity to reduce LTGDV — the rate saving usually justifies a higher equity contribution
- Prepare a complete, professional information pack — lenders price risk down when underwriting is straightforward
- Get pre-sales or off-plan reservations — demonstrated buyer interest reduces lender risk significantly
- Choose residential over commercial where the scheme supports both — residential commands better rates
Frequently Asked Questions
What are typical development finance interest rates in the UK in 2026?
7%–12% p.a. depending on developer track record, LTGDV, scheme type, and lender. Best rates (7%–8.5%) for experienced developers at sub-60% LTGDV. Higher rates (10%–12%) for first-timers or complex schemes. Always charged on drawn funds only.
How is development finance interest charged?
On drawn funds only — not the full facility from day one. As the build progresses and more is drawn, the monthly interest increases. Almost always rolled (added to the balance) rather than paid monthly. The total interest depends heavily on the drawdown profile.
What factors affect development finance interest rates?
Developer track record, LTGDV, scheme type (residential cheapest), loan size, GDV evidence quality, location, lender type, and exit certainty. LTGDV is typically the single most important variable.
What is the true cost of development finance beyond the interest rate?
Arrangement fee (1%–2%), exit fee (0%–1%), monitoring surveyor fees (£2,000–£12,000 over a project), valuation (£1,500–£5,000), and legal fees (£4,000–£10,000 combined). On a £2m facility, total non-interest costs typically £30,000–£50,000.
How can I get the best development finance rate?
Use a specialist broker, build your track record, lower your LTGDV with more equity, have a complete professional pack, get pre-sales if possible, and choose residential over commercial where the scheme allows.
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