Mortgage guide

What is a mezzanine finance for dummies?

Mezzanine finance is a type of loan that helps fill a funding gap in a property development or business deal, when you don’t have quite enough money and your main lender won’t give you any more. Think of it like a top-up loan that sits between your main mortgage (senior debt) and your own cash or equity.

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What is a mezzanine finance for dummies?

Mezzanine finance is a type of loan that helps fill a funding gap in a property development or business deal, when you don’t have quite enough money and your main lender won’t give you any more. Think of it like a top-up loan that sits between your main mortgage (senior debt) and your own cash or equity.

Imagine you’re building a block of flats. The total cost is £1 million. A bank agrees to lend you £700,000 (70%). You’ve got £100,000 saved, but you’re still short £200,000. That’s where mezzanine funding comes in, it gives you that missing piece without needing to sell a share of the project or bring in a partner.

Key Points

It fills the gap between what the bank will lend and what you need.

It’s more expensive than a regular loan, because it’s riskier for the lender (you pay higher interest). It’s flexible, you often don’t pay anything until the project finishes (interest is “rolled up”). It works well when you’ve already got a project underway and just need extra funds to finish or expand it.

Common Uses:

  • For property development that’s gone over budget
  • When you get planning permission for extra units mid-project
  • If you want to borrow up to 95% of total build costs (LTC)
  • To avoid bringing in investors or giving up equity

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Indicative estimate only, based on the figures you enter and the ceilings shown. Lenders also assess experience, planning, the build contract and the exit. This is not an offer of finance. Your property may be repossessed if you do not keep up repayments on a loan secured on it.

Mezzanine financing criteria

For context, these are the wider product terms covered by this guide. Availability and eligibility depend on your circumstances and the lender.

Mezzanine financing criteria
CriteriaDetail
BorrowersPersonal, Ltd co, LLP, Trusts, Offshore Trusts
TermMax 24 months
Max Applicants6
Loan to Gross Development Value (LTGDV)Max 75%
Loan to Cost (LTC)Up to 95%

About the author

Joseph Lane CeMAP is an expert development finance broker

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Calls and emails here go to Joseph personally, not to a general inbox.

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Frequently asked questions

What is the difference between joint venture finance and mezzanine finance?

Mezzanine finance is a second-charge loan that takes total funding above the senior lender's ceiling for a higher interest rate and sometimes a profit kicker. Joint venture finance is equity that replaces the developer's contribution entirely, in exchange for a share of profit. Mezzanine is repaid as debt; a joint venture is paid from the outcome.

How much does bridging finance cost?

Bridging finance typically costs more than a mortgage and is priced monthly, not annually. Expect interest of around 0.6% to 1.5% per month, plus arrangement fees (often 1-2%), valuation fees, and legal costs. Total cost depends on loan length, risk, and structure.

What is PBSA finance?

PBSA finance is specialist property finance for purpose-built student accommodation: development finance to build or convert student schemes, and investment finance to buy, refinance or stabilise operational schemes, underwritten on the scheme's stabilised rental income, its letting model, its operator and its location rather than on residential comparables.

Is flip finance regulated?

Flip finance is usually unregulated commercial lending, because the borrower does not live in the property. Occupation or intended occupation by the borrower or a related person can change that assessment; the lender must check the full regulatory position.

Are HMOs harder to finance?

Yes, HMOs are harder to finance than standard buy to let properties. Lenders apply specialist underwriting, require evidence of correct HMO licensing and fire safety compliance, and typically offer lower maximum loan-to-value limits due to higher management, regulatory, and tenant risk.

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