Development Finance Rates 2026 — Updated September 2026
- Senior debt — prime residential, experienced developer
- From 6.5% p.a.Senior debt — prime residential, experienced developer
- Standard senior debt range
- 6.5%–9.5%Standard senior debt range
- Mezzanine finance (second charge, behind senior debt)
- 12%–18%Mezzanine finance (second charge, behind senior debt)
- Last updated
- September 2026Last updated
Development finance rates in 2026 start from 6.5% per annum for senior debt on prime residential schemes with experienced developers. Most standard residential deals price between 7%–9.5% p.a. (Construction Capital, May 2026). Specialist, first-time developer, and commercial development schemes price higher at 9%–12% p.a. Mezzanine finance to stretch leverage beyond the senior debt cap costs 12%–18% p.a. This guide explains how rates are structured, what LTGDV means for pricing, and what the total cost of a development loan actually looks like.
Development Finance Rates by LTGDV Band — September 2026
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| Structure | Rate p.a. | LTGDV | Typical scenario |
|---|---|---|---|
| Senior debt — prime residential | 6.5%–7.5% | Up to 65% | Prime residential, experienced developer with a strong completed track record (Construction Capital, May 2026). |
| Senior debt — standard residential | 7.5%–9.5% | Up to 65%–70% | Standard residential / BTR schemes. Experienced developer, straightforward planning. |
| Senior debt — complex/commercial | 9.0%–12.0% | Up to 65% | Commercial conversion, mixed-use, complex planning. Wider lender spread. |
| Mezzanine finance | 12.0%–18.0% | 65%–90% LTGDV total | Sits behind senior debt. Higher rate reflects subordination and increased risk. |
| Blended (senior + mezz combined) | Approx 9%–12% blended | Up to 85%+ LTGDV | The effective total cost when senior and mezzanine are combined for a high-leverage scheme. |
| Stretched senior (single lender) | 10.0%–14.0% | Up to 75%–80% | Some lenders offer stretched senior without requiring a separate mezzanine provider. |
What determines your rate
LTGDV (Loan to Gross Development Value)
The primary metric for development finance pricing. 65% LTGDV = the total facility is 65% of the projected end value of the completed scheme. The lower the LTGDV, the better the rate. Above 70% LTGDV, mezzanine is typically required.
Developer track record
Experienced developers with completed comparable schemes access the sharpest rates. First-time developers typically pay 1%–2% more and face stricter conditions (monitoring surveyors, drawdown controls, personal guarantees).
Planning status
Full planning permission in place is the minimum most development lenders require. Outline planning or permitted development can be funded but at a premium. Planning uncertainty is priced heavily.
Scheme type
Prime residential attracts the best rates and widest lender choice. Social housing / affordable is supported by grant structures. Commercial and mixed-use narrows the lender pool and widens rates.
GDC (Gross Development Cost)
Lenders also cap the facility as a percentage of GDC (total project cost including land). Typically 80%–90% of GDC. A robust and independently verified cost plan reduces lender concern and improves terms.
Profit on GDV
Lenders typically require a minimum profit margin of 15%–20% on GDV. Schemes with tighter margins face harder underwriting. A RICS-assessed appraisal demonstrating the profit cushion is essential.
Worked cost example
- Arrangement fee (1.5%)
- £21,600
- Total interest on drawn amounts (drawdown basis, 18 months)
- approx £175,000
- Monitoring surveyor fees
- £8,000
- Legal and valuation
- £12,000
- TOTAL FINANCE COST
- approximately £216,600
- As % of GDV
- 9.0% | Profit on GDV after finance: £483,400 (20.1%)
Scenario: 8-unit residential development. GDV: £2,400,000. GDC: £1,680,000 (land £600,000 + build £1,080,000)
Senior debt: £1,440,000 (60% LTGDV) at 10.5% p.a. — 18-month term
Interest accrues on drawn amounts only — not the full facility from day one.
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Rate context and outlook
London Credit reduced its mainstream property development finance rates by 100bps in August 2026 and launched a new Prime Development product at 9.50% p.a. (65% LTGDV). This is a notable rate reduction in the development finance market and follows a period of elevated rates in 2024–2025.
The Bank of England held its base rate at 3.75% on 30 July 2026 — the fifth consecutive hold — in a divided 6-3 vote. Three Monetary Policy Committee members (Megan Greene, Catherine Mann, and Huw Pill) voted to raise the rate to 4.0%, citing concern about persistent energy price inflation from the Middle East conflict. The next decision is on 17 September 2026. Markets price a 72% probability of hold (SONIA futures, 17 August 2026), but the growing hawkish minority has raised the tail risk of a rate increase. A hawkish MPC split of this size removes the rate cuts that were the base case in August, so development finance funding costs are expected to hold rather than fall through Q4 2026.
Frequently asked questions
What does LTGDV mean and why does it matter?
LTGDV is Loan to Gross Development Value — the total facility as a percentage of the projected end value of the completed development. It differs from LTV (which uses current value) because development finance is secured against a property being created, not one that already exists. A 65% LTGDV means the lender will fund up to 65% of what the scheme will be worth when complete. The higher the LTGDV, the more risk for the lender and the higher the rate.
How is interest charged on development finance?
Interest accrues on drawn amounts only — not the full facility from day one. As funds are drawn in stages (for land, then build in tranches), the interest charge builds gradually. This makes development finance significantly cheaper than its headline rate suggests — because in the early months, only the land purchase has been drawn and build cost drawdowns accumulate over time.
What is a monitoring surveyor and do I need one?
A monitoring surveyor (also called a project monitor) is appointed by the lender to independently review the build programme, cost plan, and each drawdown request before funds are released. They are almost always required by development finance lenders on residential and commercial schemes. Their fees (typically £5,000–£15,000 depending on scheme size) are a cost of the finance.
Can I fund 100% of development costs?
Not typically through conventional development finance. Most lenders fund 60%–70% LTGDV of the end value. Some lenders can reach 80%–85% LTGDV through mezzanine, which covers the gap between the senior debt cap and the total cost. True 100% funding is rare and usually only available where the developer has other security or the scheme has exceptional margins.
What is the minimum scheme size for development finance?
Most development finance lenders have minimum facilities of £250,000–£500,000. For smaller schemes (1–2 units), bridging finance with a development element is often more appropriate. For larger schemes (£5m+), private banks and specialist development funders provide bespoke structures.
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Independent whole-of-market advice · FCA No. 814533