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How Do HMO Landlords Use Revolving Credit Facilities to Manage Fit-Out and Licensing Costs?

22nd May 2026

By Simon Carr

How Do HMO Landlords Use Revolving Credit Facilities to Manage Fit-Out and Licensing Costs?

Managing a House in Multiple Occupation (HMO) can be a highly profitable strategy for UK property investors. However, setting up a compliant HMO involves significant upfront expenses. From installing fire-resistant doors to fitting multiple bathrooms and paying local council fees, the costs can quickly mount up. Many landlords find themselves waiting weeks for traditional finance or paying high interest on lump-sum loans they do not fully use right away.

To solve this cash flow puzzle, experienced property investors are turning to secured revolving credit facilities. This article explains how this flexible funding option works, why it is becoming a preferred tool for HMO specialists, and how it compares to traditional options like bridging loans and remortgaging.

The Financial Challenge of HMO Conversions

Converting a standard residential property into a compliant HMO is rarely a simple cosmetic job. Local authorities in the UK enforce strict standards to ensure tenant safety and comfort. Landlords must comply with specific government HMO licensing rules, which often require significant property upgrades.

Common expenses during an HMO conversion typically include:

  • Fire Safety Upgrades: Installing mains-powered smoke alarms, fire doors, emergency lighting, and fire-retardant materials.
  • Utility and Amenity Additions: Adding extra en-suite bathrooms, expanding kitchen facilities, and upgrading boiler systems to cope with higher demand.
  • Licensing Fees: Paying local council application fees, which can vary widely depending on the borough and the size of the property.
  • Planning and Professional Fees: Architect fees, planning application costs, and structural surveys.

Because these expenses occur in phases, paying for them with a single lump-sum loan can be inefficient. Landlords often pay interest on money that sits idle in their bank accounts while they wait for builders or planning approvals.

What is a BTL Revolving Credit Facility?

A Buy-to-Let (BTL) revolving credit facility works like a secured property overdraft. It is a secured second-charge facility that sits behind your existing first-charge mortgage. Once the facility is arranged, you are granted a maximum credit limit based on the equity in your BTL property portfolio.

Unlike a traditional term loan, you do not take the entire cash amount at once. Instead, you draw down only what you need, when you need it. As you pay back the drawn amount, those funds become available to borrow again without the need to submit a new application. Crucially, interest is only charged on the money you have actually drawn down, not on the entire facility limit. Once approved, requested funds can typically be drawn in 24 to 48 hours, making it highly responsive to sudden project demands.

Before applying for any secured facility, it is wise to check your credit history to ensure your portfolio looks strong to lenders. Get your free credit search here. It’s free for 30 days and costs £14.99 per month thereafter if you don’t cancel it. You can cancel at anytime. (Ad)

How HMO Landlords Apply Revolving Credit to Projects

To understand the practical benefits of this facility, let us look at a typical scenario for a professional HMO landlord.

Imagine you have purchased a large Victorian house with the intention of converting it into a six-bed HMO. You already have a first-charge mortgage on the property. Your conversion budget is £60,000, but the work will happen over four months.

Instead of taking out a £60,000 lump-sum loan, you secure a revolving credit facility of £60,000 against another property in your portfolio. Your spending might look like this:

  • Month 1: You draw £15,000 to pay the initial deposit for the builders and buy building materials. You only pay interest on this £15,000.
  • Month 2: You draw another £20,000 to cover plumbing, rewiring, and the installation of three en-suite shower rooms. Your active balance is now £35,000, which is the amount currently accruing interest.
  • Month 3: You draw £10,000 to fund the fire safety systems, fire doors, and council licensing applications.
  • Month 4: You draw the final £15,000 for furniture and final decorations.

Once the property is fully licensed and let to tenants, the rental income begins to flow. You can use this rental profit, or capital from a later remortgage, to repay the revolving credit balance. As you pay it down, the credit line frees up again, allowing you to use it for your next HMO acquisition or to cover unexpected void periods.

Revolving Credit vs. Bridging Finance and Remortgaging

When looking for refurbishment funds, landlords traditionally look at bridging finance or remortgaging. While these options have their place, a revolving credit facility offers distinct advantages for active investors.

Bridging Loans

Bridging loans are commonly used to purchase properties quickly or fund major renovations. They can be structured as “closed” (with a firm exit date and plan) or “open” (with no fixed exit date, though subject to a maximum term). However, bridging loans typically roll up interest rather than requiring monthly payments. This means the overall debt grows quickly, and you must pay interest on the entire loan amount from day one, regardless of when you actually spend the money. Furthermore, you must reapply and pay new arrangement fees for every new project.

Remortgaging

Remortgaging your existing properties to release equity is another option. However, this process can take several months, which is often too slow for fast-moving property deals. It may also force you to break an attractive fixed-rate first mortgage, triggering expensive Early Repayment Charges (ERCs).

A secured revolving credit facility avoids these issues. It sits as a second charge, leaving your competitive first mortgage completely untouched. You only pay for what you use, and you do not need to repeat the underwriting process every time you need cash for a new property upgrade.

Important Risk Considerations for Landlords

While a secured revolving credit facility provides excellent flexibility, it is a serious financial commitment that requires careful management. Because it is a secured product, the lender will take a legal charge over your property. Your property may be at risk if repayments are not made. If you default on your payments, it could lead to legal action, repossession of your investment property, increased interest rates, and additional administrative charges.

Landlords should always ensure they have a clear exit strategy to repay any drawn balances, whether through rental yields, business cash flow, or a planned future remortgage. It is vital to calculate your projected rental income realistically, taking into account potential void periods and rising maintenance costs.

How to Access a Secured Revolving Credit Facility

As these products are highly specialised, they are generally not available directly on the high street. Instead, they are accessed through specialist finance brokers who understand the unique needs of property investors and HMO developers.

Promise Money is an FCA-authorised broker (Ref: 681423) that helps UK landlords navigate the specialist lending market. By reviewing your current portfolio and your investment goals, Promise Money can help you secure a flexible second-charge facility tailored to your HMO business. To learn more about how this facility can support your portfolio growth, you can visit the Promise Money hub at promisemoney.co.uk/landlord-revolving-credit-100 or speak directly to an advisor by calling 01902 585020.

People also asked

What is the difference between a first-charge and a second-charge loan?

A first-charge mortgage is the primary loan secured against your property, which is paid off first if the property is sold. A second-charge loan is an additional secured debt that sits behind your main mortgage, using the remaining equity in the property as security.

Do I have to pay interest on my revolving credit facility when I am not using it?

No, you typically only pay interest on the money you have actively drawn down. If your facility limit is £100,000 but your balance is currently £0, you generally will not pay daily interest on that limit, though some products may have minor product or maintenance fees.

How quickly can I draw down funds once the facility is established?

Once your revolving credit facility is fully set up and approved, you can typically request and receive drawdowns in your bank account within 24 to 48 hours.

Can I use a revolving credit facility for properties other than HMOs?

Yes, while they are highly useful for HMO fit-outs, these secured BTL facilities can also be used for standard property refurbishments, purchasing properties at auction, bridging gaps during a remortgage, or paying for EPC energy-efficiency upgrades.

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