Mezzanine finance is one of the most powerful — and least understood — tools available to UK property developers. Used correctly, it allows you to dramatically reduce your equity contribution, increase your return on capital, and run multiple development projects simultaneously with the same amount of money. Used incorrectly, or without understanding what it actually costs, it can erode project profits and create complex intercreditor dynamics that slow down your deal. This guide covers everything you need to know.
Mezzanine finance (commonly called "mezz") is a second-charge loan that sits between the senior development lender and the developer's own equity in the capital stack. Its purpose is to top up the senior loan — allowing the developer to borrow a higher overall percentage of total project costs than the senior lender alone would advance.
A typical senior development lender will advance up to 65% of Gross Development Value (GDV). With mezzanine, the combined facility can reach 80–85% of GDV — meaning the developer needs to contribute only 15–20% of GDV from their own equity rather than 35%.
The mezzanine lender sits behind the senior lender in the capital stack — meaning in a default scenario, the senior lender is repaid first from any realisation proceeds. This higher-risk position is why mezzanine commands a higher interest rate. But it also means the developer's equity is the last to be called upon — mezzanine provides a cushion above the senior debt that protects the developer's own capital.
The most common use case. A developer who would otherwise need to commit £800,000 of their own equity to a £4m GDV scheme can use mezzanine to reduce that to £200,000–£300,000. The freed-up capital runs other schemes simultaneously — multiplying the return on the equity base.
The senior lender will only advance to 60% LTGDV. The project needs 75% to be viable given land cost and build budget. Mezzanine plugs the 15% gap without requiring more equity from the developer or a different senior lender.
Experienced developers with a strong track record use mezzanine to scale from one scheme per year to three or four, using the same equity base. Each scheme is partially funded by mezz, the developer's equity is spread across all of them, and the combined return from multiple projects more than covers the higher debt cost.
A developer owns land outright. Rather than putting cash equity into a scheme, they can use the land as their equity contribution and use mezzanine to fund the build costs that the senior lender won't advance.
| Component | Senior Debt | Mezzanine Finance |
|---|---|---|
| Interest rate | 7%–10% per annum | 15%–25% per annum |
| Arrangement fee | 1%–2% of loan | 2%–3% of loan |
| Exit fee | 0%–1% | 1%–2% (some lenders) |
| Charge position | First charge | Second charge |
| Max LTGDV | Up to 65% | Up to 80%–85% combined |
| Interest payment | Rolled or retained | Almost always rolled |
Mezzanine rates look alarming in isolation. But the commercial logic is straightforward: the question isn't "what does the mezz cost?" — it's "what is my return on equity with and without mezz?"
A development project: GDV £3,000,000. Total costs (land + build + finance) £2,400,000. Gross profit £600,000 (20% on GDV).
| Item | Amount |
|---|---|
| Senior debt (65% LTGDV) | £1,950,000 |
| Developer equity required | £450,000 |
| Gross profit | £600,000 |
| Less senior interest (10% p.a. × 12 months) | -£195,000 |
| Net profit | £405,000 |
| Return on equity (£405k ÷ £450k) | 90% |
| Item | Amount |
|---|---|
| Senior debt (65% LTGDV) | £1,950,000 |
| Mezzanine (15% LTGDV) | £450,000 |
| Developer equity required | £120,000 (cash) + land equity |
| Gross profit | £600,000 |
| Less senior interest | -£195,000 |
| Less mezzanine interest (20% p.a. × 12 months) | -£90,000 |
| Net profit | £315,000 |
| Return on equity (£315k ÷ £120k cash) | 262% |
💡 The net profit is lower with mezzanine (£315k vs £405k). But the return on the developer's own cash equity is nearly three times higher. The developer who used mezzanine could simultaneously run three schemes with the same £450k equity — generating a combined net profit of £945k rather than £405k.
Mezzanine lenders are sophisticated investors. They know they sit behind the senior lender and they price accordingly. The key factors they assess:
When a senior lender and mezzanine lender both have security over the same property, their relationship is governed by an intercreditor agreement (ICA). This document sets out what happens in various scenarios — particularly default or project failure. Key provisions:
💡 Broker tip: Always confirm the senior lender will accept your chosen mezzanine lender before going too far down the road. Mismatched lender pairings that aren't on each other's approved lists can kill deals at the eleventh hour.
| Factor | Mezzanine Finance | JV Equity Partner |
|---|---|---|
| Cost structure | Fixed interest + fees | Profit share (30–50% of profit) |
| Developer retains full profit? | Yes (above debt costs) | No — profit shared |
| Partner involvement | None — passive lender | Often active in decisions |
| Best for | Strong-margin projects | Large/complex projects needing skills |
| Track record required | Yes — typically 1–2 projects | Varies — some JV partners back first-timers |
| Speed | Faster — structured finance | Slower — partnership negotiation |
We work with specialist mezzanine lenders across the market. Tell us your project details and we'll run the numbers — and identify whether mezzanine genuinely improves your return on equity.
Get Mezzanine Terms Today