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Are revolving credit facilities available for hmo and multi-unit properties?

22nd May 2026

By Simon Carr

Are revolving credit facilities available for hmo and multi-unit properties?

Managing Houses in Multiple Occupation (HMOs) and Multi-Unit Freehold Blocks (MUFBs) can be a highly profitable strategy for UK property investors. However, these complex properties typically require more active management, higher maintenance budgets, and regular upgrades compared to standard single-let properties. When capital is tied up in your portfolio, securing flexible funding becomes essential.

Many landlords wonder if flexible property-based overdrafts are available for these specialized properties. The short answer is yes. A secured Buy-to-Let (BTL) revolving credit facility can be arranged against HMOs and multi-unit properties. This product is a secured finance option, sitting as a second charge behind your existing first-charge mortgage. It is not an unsecured business loan, a generic credit card, or an unsecured revolving line of credit.

At Promise Money, we are an FCA-authorised broker (Ref: 681423), not a lender. We help UK landlords explore their financing options. If you want to discuss your portfolio, you can call us on 01902 585020 or visit our revolving credit hub.

How a secured revolving credit facility works for HMOs and MUFBs

A BTL revolving credit facility works similarly to a personal or business bank overdraft, but it is secured against your residential investment property. Once the facility is approved and set up behind your existing mortgage, you can draw funds down, repay them, and draw them down again as needed, without having to reapply each time.

Here are the key features of this facility for HMO and multi-unit landlords:

  • Secured as a second charge: The facility sits behind your existing first-charge BTL mortgage, meaning you do not have to disturb your current mortgage rate.
  • Interest on drawn funds only: You only pay interest on the money you actually use, not on the total facility limit. This makes it a highly cost-effective emergency safety net.
  • Fast access to cash: Once the facility is established, future drawdowns can typically be processed within 24 to 48 hours.

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Why HMO and multi-unit landlords use revolving credit

HMOs and multi-unit properties have unique operational demands. Landlords can use a secured revolving credit facility to manage these demands efficiently. Some of the most common uses include:

1. Refurbishments and EPC upgrades

HMOs experience more wear and tear than single-let properties due to high tenant turnover. Additionally, landlords must keep up with strict environmental regulations. You may need to upgrade insulation, install double glazing, or fit new heating systems to improve your Energy Performance Certificate (EPC) ratings. A revolving credit facility allows you to draw down funds to pay contractors quickly and repay the balance as rental income rolls in.

2. Purchasing new properties at auction

When buying a new HMO or multi-unit block at auction, you typically have only 28 days to complete the purchase. Traditional mortgages are usually too slow for this timeline. Landlords can use a revolving credit facility to secure the deposit or even fund the entire purchase, then refinance onto a standard mortgage later.

3. Bridging void periods and cash flow gaps

If a few tenants move out of your HMO at the same time, your rental income could temporarily drop. Meanwhile, your mortgage payments and utility bills remain due. A secured revolving credit line acts as an excellent cash flow buffer, helping you cover expenses during void periods without stress.

When managing an HMO, you must comply with strict local authority regulations, such as licensing rules outlined on the GOV.UK HMO licensing page. Keeping funds accessible ensures you can always pay for required safety upgrades immediately.

How revolving credit compares to bridging finance and remortgaging

When landlords need capital, they typically look at bridging finance or remortgaging. Here is how a secured revolving credit facility compares to these options.

Revolving credit vs. bridging finance

Bridging loans are short-term, single-use loans. They can be open (with no fixed exit date, though typically capped at 12 to 24 months) or closed (with a clearly defined exit strategy, such as an agreed property sale). Most bridging loans roll up interest, meaning you do not make monthly payments, but the total debt is repaid in one lump sum at the end.

While bridging is useful for single transactions, it can be expensive if you need ongoing access to cash. A revolving credit facility offers continuous access to funds over several years. You can draw down small amounts as needed, rather than taking out a large lump sum and paying interest on the whole amount.

Your property may be at risk if repayments are not made. Outstanding debt could lead to repossession, legal action, increased interest rates, or additional charges if you default.

Revolving credit vs. remortgaging

Remortgaging to release equity from an HMO or multi-unit block can take months. It also forces you to replace your entire first-charge mortgage. If you currently enjoy a competitive historical interest rate, remortgaging could significantly increase your monthly payments. Additionally, you may face expensive Early Repayment Charges (ERCs). A revolving credit facility sits as a second charge, leaving your main mortgage untouched.

Are you eligible? HMO and MUFB criteria

Securing a revolving credit facility against an HMO or multi-unit freehold block is more complex than securing finance against a standard buy-to-let. Lenders will typically look at several factors:

  • Licensing: Your HMO must have all the necessary local authority licenses and comply with safety standards.
  • Property Valuation: Lenders may assess the property based on its investment value (yield-based) rather than just its bricks-and-mortar value.
  • Tenant Profile: Some lenders prefer professional tenants or student lets, while others are comfortable with social housing contracts.
  • Equity: You will need sufficient equity remaining in the property after your first-charge mortgage is taken into account.

People also asked

Is a BTL revolving credit facility an unsecured loan?

No, this is a secured financial product. It is registered as a second charge against your residential buy-to-let property, meaning the property is used as collateral.

How quickly can I access funds from a revolving credit facility?

Once the facility is initially set up and approved, future drawdowns are very fast. You can typically access the funds in your bank account within 24 to 48 hours of making a request.

Can I use this facility for several properties in my portfolio?

Yes, depending on the lender’s criteria, you may be able to secure the facility against a single HMO, a multi-unit block, or even cross-collateralise it across multiple properties in your portfolio.

Do I pay fees on the undrawn parts of my credit line?

Typically, you only pay interest on the money you actually draw down. However, some lenders may charge a small facility or product fee to keep the line of credit active, which will be detailed in your offer.

Summary: A flexible tool for professional landlords

For UK landlords managing complex portfolios with HMOs and multi-unit blocks, maintaining liquid capital is vital. A secured BTL revolving credit facility provides a flexible, fast alternative to bridging finance and remortgaging, allowing you to access cash on demand without disturbing your first-charge mortgage.

Because Promise Money is an FCA-authorised broker, we can help you compare available products to find a solution that fits your portfolio’s needs. To find out if your properties are eligible, please call our specialist team on 01902 585020 or visit promisemoney.co.uk/landlord-revolving-credit-100.

The property (your home or investment property) may be at risk if you do not keep up repayments on a mortgage or any other debt secured on it.

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    More than 50% of borrowers receive offers better than our representative examples. The %APR rate you will be offered is dependent on your personal circumstances.
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