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Can I get an HMO mortgage for an unlicensed property?

13th February 2026

By Simon Carr

Navigating the mortgage landscape for Houses in Multiple Occupation (HMOs) requires specialist knowledge, particularly when the property in question is not yet licensed. Standard long-term mortgage lenders typically require the property to be fully licensed and compliant with local authority standards before they will approve specialist HMO funding. If you are looking to purchase an unlicensed property intending to convert it into a compliant HMO, specialist short-term finance, such as a bridging loan, is often the necessary interim step before securing the final HMO mortgage product.

Can I Get an HMO Mortgage for an Unlicensed Property? Understanding UK Lending Rules

The decision by lenders on whether to approve an HMO mortgage hinges primarily on the legal and commercial viability of the property. For a property to be legally rented out as an HMO above specific tenant thresholds, it must possess the correct licence issued by the local authority. Lenders treat the presence of a licence as confirmation that the investment is sound and the projected rental income is sustainable and lawful.

Why Standard Lenders Require HMO Licensing Upfront

Lenders, especially mainstream buy-to-let (BTL) providers, operate under strict criteria designed to protect their investment. An unlicensed HMO poses several significant risks from a lending perspective:

  • Legal Risk: Operating an HMO without the necessary licence can lead to substantial fines, enforcement action, and Rent Repayment Orders (RROs). This disrupts the expected rental income used to service the mortgage.
  • Valuation Risk: The property valuation used for lending purposes assumes a legitimate HMO use. If the property cannot be legally operated as an HMO, its commercial value decreases, potentially putting the lender at risk.
  • Compliance Uncertainty: If a property requires remedial work to meet licensing standards (e.g., fire safety upgrades, improved amenities), the lender does not want the burden of funding those works or waiting for their completion.

Therefore, when asking, “can I get an HMO mortgage for an unlicensed property?”, the answer for a standard, long-term repayment product is almost always negative until the licensing process is complete.

Understanding HMO Licensing Requirements in the UK

In the UK, a property is typically defined as an HMO if at least three tenants from two or more households live there and share essential facilities like a kitchen or bathroom. There are two main types of licensing:

  1. Mandatory Licensing: This applies across England and Wales to properties rented to five or more tenants who form two or more separate households, regardless of the number of storeys.
  2. Additional Licensing: Many local authorities have implemented schemes that require licensing for smaller HMOs (e.g., three or four tenants) to better control housing quality in their area.

If the property meets the criteria for mandatory or additional licensing, it must have one before it is rented out. Failure to comply is a criminal offence. Prospective property owners must ensure they fully understand their local authority’s requirements. You can check the UK government’s guidance on HMO licensing requirements for current regulations.

As part of the HMO mortgage application process, lenders will typically request copies of the licence and fire safety certificates. If you are purchasing an existing HMO that is already licensed, the application is straightforward. If it is unlicensed and requires conversion or compliance work, a different financial approach is required.

The Refinancing Pathway to an HMO Mortgage

Once the property has been converted, inspected by the local authority, and the HMO licence has been granted, you can move forward with the permanent HMO mortgage. This process is known as refinancing.

Lenders will typically require a new valuation based on the property’s value as a fully compliant, income-generating HMO. They will assess the projected rental yield (often higher for HMOs than standard BTLs) to ensure it meets their coverage ratio requirements.

Why a Specialist Broker is Essential

Securing short-term finance and then seamlessly transitioning to a specialist HMO mortgage requires coordination and expertise. A specialist financial broker can help you:

  • Identify lenders who are comfortable with HMO conversion projects funded by bridging loans.
  • Structure the bridging loan and the long-term mortgage application simultaneously, ensuring the timing of the exit strategy aligns with the expected completion of works.
  • Source the most competitive rates, which can vary significantly between specialist lenders for complex HMO cases.

Credit Checks and Financial Health

Lenders, whether for bridging finance or specialist HMO mortgages, will perform detailed checks on your financial health, including your credit history, to assess risk.

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A strong credit profile and evidence of successful financial management will greatly improve your chances of securing the necessary financing for both the purchase and the subsequent refinancing.

People also asked

How much deposit do I need for an HMO mortgage?

For specialist HMO mortgages, lenders typically require a larger deposit compared to standard residential mortgages, often starting around 25% or 30% of the property value, reflecting the slightly higher commercial risk associated with this type of investment.

Does the number of storeys affect HMO mortgage eligibility?

While the number of storeys can impact whether mandatory licensing applies (historically five tenants over three storeys, though this specific height rule has changed), lenders focus more on the compliance status and the number of bedrooms/tenants, which determines the potential rental income and complexity of the property’s management.

Can I use a standard BTL mortgage for a small HMO?

If the property meets the definition of an HMO (three or more tenants from two or more households) and especially if it falls under local additional licensing schemes, lenders usually require a specialist HMO product rather than a standard Buy-to-Let mortgage, as HMOs carry different regulatory and insurance requirements.

What happens if my HMO licence application is delayed?

If your licence application is delayed, it can seriously impact your bridging loan exit strategy. Delays mean the property cannot be legally rented out, delaying the HMO mortgage completion. You may need to extend your bridging loan term, incurring additional interest and fees, which highlights the need for contingency planning in your budget.

In summary, while it is extremely difficult to secure an HMO mortgage for an unlicensed property initially, there are well-established financing routes available using specialist bridging loans. This short-term solution provides the necessary capital and time to bring the property into full compliance, ensuring you meet all legal requirements before securing the favourable long-term financing that suits your investment strategy.

It is crucial to work with professionals who understand both the complexities of HMO licensing and the specialist lending market to ensure a smooth transition from purchase to fully licensed, profitable HMO operation.

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