HMO Finance

HMO Finance: How to Fund Your House in Multiple Occupation

September 202518 min readBy Black Props Team

So you've decided HMOs are for you. You've found a property with potential. You've run the numbers and they stack up. You're ready to move forward. Now you need finance. And here's where things get interesting.

HMO finance isn't the same as standard buy-to-let finance. The products are different, the lenders are different, and the criteria are different. Some high street banks won't touch HMOs at all. Others will, but with restrictive terms and lower LTVs.

Meanwhile, specialist HMO lenders offer products specifically designed for this market—but they come with their own quirks and requirements.

In this article, we're breaking down everything you need to know about financing HMO properties: what products are available, which lenders to use, how much deposit you'll need, and how to structure deals for maximum cash flow.

Why HMO Finance Is Different from Standard Buy-to-Let

Let's start with why HMO mortgages are treated differently.

Lenders See HMOs as Higher Risk

From a lender's perspective, HMOs carry more risk than standard rentals:

  • Multiple tenants mean more turnover
  • More regulation means more compliance risk
  • Properties are harder to sell if repossessed (fewer buyers want HMOs)
  • Management is more complex

Because of this perceived higher risk, HMO mortgages typically have:

  • Lower LTVs (usually 75% maximum, sometimes only 70%)
  • Higher interest rates (often 0.5-1% above standard buy-to-let)
  • Stricter lending criteria
  • Higher rental coverage requirements (usually 145% vs 125% for standard BTL)

Not All HMOs Are Treated Equally

Small HMOs (3-4 tenants) are easier to finance than large HMOs (5+ tenants). Many lenders treat small HMOs as standard buy-to-lets if all tenants are on a single tenancy agreement.

Large HMOs require specialist products and often need mandatory licensing, which adds another layer of scrutiny.

Purpose vs Product

Some lenders care about the number of rooms. Others care about whether the property is licensed as an HMO. Still others care about how you're letting it (room-by-room vs whole property).

This lack of standardisation means you need to understand each lender's definition before applying.

The Different Types of HMO Finance

HMO financing isn't one thing—it's several different products depending on what you're trying to achieve.

1. HMO Purchase Mortgages

Standard buy-to-let mortgage for properties already operating as HMOs or easily converted.

  • LTV: Usually 75% (some go to 80%)
  • Term: 5-30 years
  • Interest: 5-7%
  • Rental Coverage: Usually 145%

2. HMO Bridging Finance

Short-term finance (6-18 months) when speed is essential or property needs work.

  • LTV: Up to 75%
  • Term: 6-24 months
  • Interest: 0.75% - 1.5% per month
  • Speed: 2-4 weeks

3. HMO Refurbishment Finance

Funds both purchase and refurbishment costs with staged drawdowns.

  • LTV: Up to 75% of purchase + refurb
  • Term: 12-24 months
  • Interest: 0.85% - 1.5% per month
  • Funding: Staged as work completes

4. HMO Development Finance

For substantial projects: ground-up builds, major conversions, structural work.

  • LTV: Up to 65-70% of project costs
  • Loan-to-GDV: Up to 65%
  • Term: 12-24 months
  • Requirements: Detailed costings

How Much Deposit Do You Need for an HMO?

This is the question we get asked most often. The answer depends on the finance route you choose.

Deposit Requirements by Product Type

Standard HMO Mortgages:
25% deposit (75% LTV). Some will go to 20% (80% LTV) for experienced landlords.
HMO Bridging:
25-30% deposit (70-75% LTV typically).
HMO Refurbishment:
25% of total project cost (purchase + refurb).

Can You Get 85% LTV HMO Mortgages?

Occasionally, for small HMOs (3-4 tenants on a single tenancy agreement) treated as standard buy-to-lets, some lenders will go to 85% LTV. But these are rare and usually require significant experience.

For most investors, plan on needing 25-30% deposit.

What Do HMO Lenders Look For?

HMO lenders assess applications differently from standard buy-to-let. Here's what they care about:

1. Rental Coverage

HMO lenders want to see that rental income comfortably covers mortgage payments.

Standard Requirement:

145% rental coverage at stressed interest rate (usually 5.5-6%)

Example:

  • Monthly mortgage payment at 5.5%: £1,000
  • Lender requires rental income of: £1,450 per month
  • If rent is £1,200, you don't qualify

Some lenders use 125% for small HMOs. Others insist on 145-150% for large HMOs.

2. Your Experience

Many HMO lenders prefer (or require) landlord experience:

  • First-time landlords: Limited options, may need larger deposits
  • Experienced landlords (2+ properties): Better rates, more lenders
  • Portfolio landlords (4+ properties): Best rates, highest LTVs
  • Existing HMO landlords: Premium terms

If you're new to HMOs but have buy-to-let experience, most lenders will consider you. If you're completely new to property, expect to start with a smaller HMO and a larger deposit.

3. Property Location and Demand

Lenders Favour

  • Properties near universities (student demand)
  • City centres (professional demand)
  • Areas with established HMO markets
  • Properties in good condition or clear conversion potential

Lenders Are Cautious About

  • Rural areas with limited tenant demand
  • Areas under Article 4 directions (planning restrictions)
  • Over-saturated HMO markets
  • Properties in poor structural condition

4. Licensing Status

If the property requires licensing (mandatory or additional), lenders want to see:

  • That you've applied for (or obtained) the license
  • That the property meets licensing standards
  • Proof of compliance with fire safety and other regulations

Unlicensed HMOs won't get financed. Period.

5. Your Financial Position

Unlike bridging, HMO mortgages do care about your income:

  • Most lenders want minimum £25-30k personal income
  • Some waive this for experienced portfolio landlords
  • Self-employed applicants usually need two years' accounts
  • Company-owned HMOs have different criteria

6. Exit Strategy (For Bridging)

If you're using bridging or development finance, lenders need a clear exit:

  • Refinancing onto HMO mortgage: Need evidence of rental potential
  • Sale: Need comparable sales evidence
  • Development completion: Need realistic timelines and costings

The Best HMO Lenders in 2025

Not all lenders are created equal. Here are the main players in HMO finance and what they offer:

For Standard HMO Mortgages:

Landbay

  • • Small HMOs up to 80% LTV
  • • Large HMOs up to 75% LTV
  • • Competitive rates
  • • Good for first-time HMO landlords

Paragon Bank

  • • Well-established HMO lender
  • • Up to 75% LTV
  • • Prefer experienced landlords
  • • Strong rental calculations

Foundation Home Loans

  • • Specialist in complex cases
  • • Up to 75% LTV
  • • Flexible on income
  • • Good for portfolio landlords

Kent Reliance

  • • Now part of OneSavings Bank
  • • Up to 75% LTV
  • • Expanding HMO criteria
  • • Good for professional HMOs

For HMO Bridging and Refurb Finance:

Black Props (that's us)

  • • HMO purchase and refurb bridging
  • • Up to 75% LTV
  • • Fast decisions (24-48 hours)
  • • Experience with HMO conversions

MT Finance

  • • Specialist short-term HMO finance
  • • Refurb and development options
  • • Up to 75% LTV

West One Loans

  • • HMO bridging specialists
  • • Fast completions
  • • Flexible structures

LendInvest

  • • Development and refurb finance
  • • Larger projects
  • • Staged funding

How to Choose:

Use a mortgage broker who specialises in HMO finance. They'll know which lenders suit your specific situation and can package your application properly.

How to Structure an HMO Deal for Maximum Cash Flow

Let's walk through a real example showing how to structure HMO finance for optimal returns.

The Property:

  • Location: Three-bed house in a university town
  • Purchase price: £180,000
  • Plan: Loft conversion and reconfiguration to create five bedrooms
  • Estimated refurb cost: £35,000

Phase 1: Acquisition (Bridging)

  • • Bridging loan: £135,000 (75% of £180k)
  • • Your deposit: £45,000
  • • Interest rate: 1% per month = £1,350/month
  • • Term: 12 months while refurb completes
  • • Total interest cost: £16,200

Phase 2: Refurbishment

  • • Refurb costs: £35,000 (paid from your capital)
  • • Works completed over 4-5 months
  • • Property transformed from 3-bed to 5-bed HMO

Phase 3: Refinance (HMO Mortgage)

  • • Property now valued at: £240,000 (improved value)
  • • Rental income: £450/room x 5 = £2,250/month (£27,000/year)
  • • HMO mortgage: 75% of £240k = £180,000
  • • This pays off the £135k bridging loan
  • • You extract: £180k - £135k = £45,000

Final Position:

  • Total invested: £45k deposit + £35k refurb + £16.2k interest = £96,200
  • Amount extracted on refinance: £45,000
  • Net capital left in: £51,200
  • Annual rental income: £27,000
  • Annual mortgage cost (5.5% on £180k): £9,900
  • Net income (before other costs): £17,100
  • Return on invested capital: 33% per year

After accounting for management, maintenance, bills, etc., your net yield is probably 20-25%—still exceptional.

The Beauty of This Structure:

  • You've pulled most of your deposit back out
  • You're generating strong cash flow
  • You can reinvest the £45k extracted into the next HMO
  • You're building wealth through rental income and capital appreciation

This is how experienced HMO investors build portfolios systematically.

Common HMO Finance Mistakes (And How to Avoid Them)

Mistake 1: Underestimating Conversion Costs

You budget £25k for conversion. It costs £45k. Now you can't complete the project.

Solution: Get detailed quotes before committing. Add 20% contingency.

Mistake 2: Not Factoring in All Costs

You calculate yield based on rental income and mortgage, forgetting licensing fees, higher insurance, bills, maintenance, and management.

Solution: Build a realistic cost model including all expenses.

Mistake 3: Over-Leveraging

You borrow the maximum possible with minimal equity buffer. One extended void period and you're in financial trouble.

Solution: Leave cash reserves. Don't stretch to absolute limits.

Mistake 4: Wrong Lender Choice

You apply to a mainstream lender who doesn't understand HMOs. Application rejected, time wasted.

Solution: Use HMO-specialist lenders or brokers from the start.

Mistake 5: No Exit Strategy (For Bridging)

You use bridging to buy and convert but haven't lined up the refinance mortgage. Bridging expires and you're scrambling.

Solution: Get a mortgage in principle before starting the project.

Can You Use Limited Companies for HMO Finance?

Yes—and increasingly, this is the preferred structure.

Benefits of Company Ownership

  • • Tax efficiency (corporation tax vs income tax)
  • • Mortgage interest fully deductible
  • • Easier to scale portfolios
  • • Asset protection

Challenges

  • • Some lenders won't lend to SPVs (Special Purpose Vehicles)
  • • Slightly higher mortgage rates (0.5% more)
  • • More complex accounting
  • • Director guarantees usually required

Many experienced HMO investors run portfolios through limited companies. If you're serious about HMO investment, speak to an accountant about whether this structure makes sense for you.

The Bottom Line: HMO Finance Rewards Preparation

HMO finance isn't difficult, but it's more complex than standard buy-to-let. You need:

  • The right lender for your situation
  • Realistic numbers and cost projections
  • Clear exit strategies
  • Proper licensing and compliance
  • Sufficient capital to execute properly

Get these pieces in place and HMO finance becomes straightforward.

At Black Props, we've financed dozens of HMO purchases, conversions, and refinances. We know what works, what doesn't, and how to structure deals that actually deliver the returns you're targeting.

If you're planning an HMO investment and need finance, let's talk. Because a well-structured HMO deal can transform your property portfolio—but only if the finance is right from the start.

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