Using Bridging Finance to Invest in HMOs and MUFBs

A practical guide for landlords looking to move quickly on high-yield opportunities

For experienced landlords, opportunities to expand a portfolio don’t always wait for traditional mortgage approvals. Whether you’re acquiring a House in Multiple Occupation (HMO) or a Multi-Unit Freehold Block (MUFB), speed, flexibility, and certainty of funding can make the difference between securing a deal—or losing it.

This is where bridging finance becomes a powerful tool.

In this guide, we’ll explore how bridging loans work, why they are particularly suited to HMO and MUFB investments, and how landlords can use them strategically to grow their portfolios.

What is Bridging Finance?

Bridging finance is a short-term property loan designed to “bridge” a funding gap—typically used when a fast purchase is required or when a property isn’t yet suitable for a standard buy-to-let mortgage.

Loans are usually secured against property and range from a few months up to 1–18 months, depending on the lender and strategy.

Why Bridging works for HMO and MUFB investments

1. Speed of Execution

HMO and MUFB deals are often competitive, particularly when priced attractively or offering strong yields. Traditional lenders can take weeks or months to process applications, which can cost you the deal.

Bridging lenders can often complete within days or a few weeks, allowing you to act quickly and confidently.

2. Ideal for refurbishment projects

Many HMOs and MUFBs require works before they can be fully let or refinanced.

Bridging finance allows landlords to:

• Purchase properties in poor condition
• Fund light to heavy refurbishment – At Mercantile Trust we only accept light refurbishment
• Add value before refinancing onto a long-term product

This is particularly useful where:

• The property is not mortgageable in its current state
• You’re converting a standard property into an HMO
• You’re reconfiguring units within a MUFB

3. Flexible underwriting

Unlike high street lenders, bridging providers often take a more pragmatic view of applications.

They may consider:

• Complex property types (e.g. large HMOs or mixed-use MUFBs)
• Non-standard construction
• Landlords with complex income structures
• Cases where personal income is less relevant

For portfolio landlords, this flexibility can be critical.

4. Auction purchases

Many HMO and MUFB opportunities are acquired at auction, where completion deadlines are typically 28 days.

Bridging finance is often the only realistic option for:

• Meeting tight deadlines
• Securing below-market-value deals
• Avoiding penalties or losing deposits

5. Unlocking value through refinance

A common strategy is:

Buy → Refurbish → Refinance

Bridging allows you to:

1. Acquire the property quickly
2. Increase its value through improvements or better rental structuring
3. Refinance onto a buy-to-let or commercial mortgage based on the new value

This can help:

• Release capital for further investments
• Improve yield
• Strengthen long-term cash flow

Typical use cases for landlords

Bridging finance is commonly used for:

• Converting a single dwelling into an HMO
• Purchasing a tired MUFB and upgrading units
• Breaking a chain or completing quickly on an off-market deal
• Funding light refurbishment before tenanting
• Acquiring properties with short leases or title issues (to be resolved later)

Key Considerations Before Using Bridging

While bridging can be highly effective, it’s important to plan carefully:

Exit strategy

You must have a clear and realistic plan to repay the loan, typically through:

• Refinancing onto a term mortgage
• Sale of the property

Costs

Bridging loans typically include:

• Monthly interest (or rolled-up interest)
• Arrangement fees
• Valuation and legal costs

However, these costs can often be justified by the speed and value creation potential.

Experience Matters

Lenders will look favourably on landlords with:

• Previous refurbishment experience
• A clear investment strategy
• Understanding of HMO or MUFB management

Is Bridging right for your next investment?

If you’re an active landlord looking to expand into HMOs or MUFBs, bridging finance can be a highly effective tool—especially when timing, property condition, or complexity would otherwise prevent a traditional mortgage.

Used correctly, it enables you to:

• Move quickly
• Add value
• Scale your portfolio efficiently

Final thoughts

In today’s competitive property market, landlords need more than just access to funding—they need the right type of funding at the right time.

Bridging finance offers the flexibility and speed required to secure and transform HMO and MUFB investments, helping landlords unlock opportunities that others may miss.

Looking to fund your next HMO or MUFB?

At Mercantile Trust, we specialise in supporting landlords with fast, flexible bridging solutions. Every case is assessed individually by an experienced team—because we understand that property investments don’t always fit a standard mould.