What is mezzanine finance? A UK developer's guide

Mezzanine finance is one of the most useful tools in a property developer's kit. It sits between your senior development loan and your own equity, filling the gap that lets you take on larger schemes with less of your own capital tied up in each one. The same structure is used well beyond property, by trading businesses funding growth or an acquisition, but in the UK it is most visible in real estate and development finance.

What is mezzanine finance?

Mezzanine finance is a layer of funding that sits between senior debt and equity in the capital structure of a company or a project. It behaves partly like a loan and partly like equity: it is usually a subordinated loan, secured behind the senior lender, and priced higher to reflect that junior position. The name comes from architecture, where a mezzanine is the floor between two main storeys; in finance it is the layer between the two main forms of capital, debt and equity.

Because it ranks behind senior debt but ahead of equity, mezzanine debt carries more risk than a senior loan and less than pure equity, and its pricing sits between the two. Lenders accept a second charge rather than a first charge, and in exchange they earn a higher rate, indicatively 12 to 18 percent a year in UK development.

Mezzanine debt versus senior debt and equity

It helps to see the three layers side by side. Senior debt is the cheapest and safest money: it takes first charge, funds the largest share of cost, and is priced accordingly. Equity is the most expensive, because it carries the most risk and the highest reward, and it ranks last for repayment. Mezzanine debt sits in between. It is subordinated to the senior loan but ranks ahead of equity, so it is cheaper than raising fresh equity and dearer than senior debt. Used well, it lets a developer or a business hold on to more equity while still funding the whole project, which is why the blend of senior debt plus mezzanine is so common in UK development finance.

How it works

When a senior lender offers 65 percent loan to cost on a £5m development, you would normally need to find £1.75m in equity. (If the senior layer itself is still unfunded, a specialist such as Construction Capital covers that market.) With mezzanine finance covering a further 25 percent of cost, your equity requirement drops to £500k.

The mezzanine lender takes a second charge on the development, sitting behind the senior lender in the repayment waterfall. That higher-risk position is reflected in the pricing, indicatively 12 to 18 percent a year. Interest is often rolled up and repaid at exit rather than serviced monthly, which protects the cash flow of a scheme that is not yet selling.

An example of mezzanine finance

Take a developer building out a £5m residential scheme. Senior debt covers 65 percent of cost, or £3.25m. Rather than fund the remaining £1.75m entirely from equity, the developer adds £1.25m of mezzanine finance, a further 25 percent of cost. That leaves just £500k of equity, 10 percent of the total, in the deal.

If the scheme sells for a £1m profit, the developer has earned that on £500k of their own money rather than £1.75m. The mezzanine interest reduces the headline profit, but the return on the equity actually deployed is far higher. This is the core reason experienced developers use mezzanine: it is a lever on return on equity, not a last resort.

When to use mezzanine

• Scaling a portfolio. Run three schemes simultaneously instead of locking all your equity into one.
• Auction purchases. Move fast on opportunities where capital has to land quickly.
• Maximising return on equity. Less equity in means a higher return on the equity you do deploy.
• Planning-led opportunities. Secure sites where planning gain creates substantial GDV upside.

Who typically uses mezzanine finance?

In the UK, the most frequent users are experienced property developers and housebuilders who want to stretch their equity across more schemes. Beyond real estate, established trading businesses use mezzanine to fund an acquisition, a management buy-out or a growth push without diluting ownership through a fresh equity round. The common thread is a borrower with a clear plan and enough margin to carry a higher cost of debt: mezzanine rewards profitable, well-run projects and businesses, not thin ones. First-time developers rarely qualify on their own and usually partner with an experienced operator.

What a mezzanine lender looks for

At Max Mezz we normally want to see:

• At least 2 to 3 completed developments
• Full planning permission in place
• A viable exit, sales or refinance
• A professional cost plan and build programme
• Profit on cost of 20 percent or better

Advantages and disadvantages

Like any funding tool, mezzanine has clear pros and cons.

Advantages. It frees up equity so the same capital works across more deals; it lifts return on equity; it is cheaper than giving away equity in the business or the scheme; and it sits alongside senior debt rather than replacing it, so it does not disturb a good senior facility.

Disadvantages. The rate is higher than senior debt, so it only works where margins have headroom; the lender takes a second charge and usually personal guarantees; and the intercreditor agreement with the senior lender adds some legal work. If a project's profit on cost is slim, mezzanine can turn a modest return into no return at all.

Is a mezzanine loan the same as a second mortgage?

They are related but not the same. A second mortgage and a mezzanine loan both sit behind a first-charge lender, so both are subordinated and both are repaid after the senior debt. But a second mortgage is a residential term for a further charge over a home, while mezzanine finance is a commercial structure used in development and business funding, governed by an intercreditor agreement between the lenders and priced for a defined project term. Some mezzanine is not secured by a charge over the property at all, but by a charge over the shares in the company that owns it. So a mezzanine loan is second-charge in spirit, but it is a business instrument rather than a home loan.

Is mezzanine debt a good investment?

From the other side of the deal, mezzanine can be an attractive income-generating, asset-backed investment, offering indicative target returns of 10 to 15 percent a year secured by a second charge. Those returns are the reward for a subordinated position: in a downside the senior lender is repaid first, so capital is genuinely at risk, and the returns are targets rather than promises. Mezzanine debt suits high net worth and sophisticated investors who can diversify across several loans. We cover the investor side in full on our investors page.

Mezzanine finance in property development

Property development is where UK mezzanine finance is most active, and real estate is the clearest way to see it work. A senior development lender will usually fund 60 to 70 percent of cost against the site and the build. Mezzanine takes a second charge and funds a further slice, lifting combined leverage to 85 to 95 percent of cost, so the developer commits far less equity to each scheme. The loan is sized against the gross development value and the profit in the deal, and it is repaid when the finished units sell or the developer refinances. Because it is tied to a defined project with a clear exit, real estate mezzanine is more straightforward to underwrite than open-ended corporate debt. Our mezzanine finance page sets out how we structure and price the middle layer.

Is mezzanine finance secured?

Yes, in most UK development deals mezzanine finance is secured, but behind the senior lender rather than in front of it. The security is typically a second charge over the development, supported by an intercreditor agreement that defines the mezzanine lender's rights relative to the senior debt, and usually by personal guarantees from the borrower. In some structures the security is a charge over the shares in the company that owns the asset instead of a charge over the property itself. Either way the position is subordinated, which is exactly why the rate is higher than senior debt.

The numbers

All figures indicative; every loan is priced case by case.

Getting started

The simplest way to explore mezzanine finance for your next scheme is to share the deal with us: site, costs, GDV, senior terms if you have them, and your track record. We issue term sheets within 48 hours of a complete enquiry. For a side-by-side with short-term funding, our guide to mezzanine versus bridging loans is a good next read.