Buy to Let Mortgages for Portfolio Landlords and HMOs

Once you are holding several rental properties or running an HMO, lending gets more specialist. High street banks step back at four mortgaged properties, and the right lender needs to understand your whole portfolio rather than just the property in front of them. Sadi's Commercial Finance is an NACFB and FIBA registered commercial finance brokerage and arranges unregulated buy to let finance for portfolio landlords, HMO operators and multi unit blocks across the UK.

Who it is for: landlords with four or more mortgaged rental properties, who are classed as portfolio landlords, HMO operators, investors holding multi unit freehold blocks, and landlords moving properties into or between limited company structures.

Who we help

We work with landlords who have outgrown mainstream buy to let. That includes the landlord buying their fifth property and discovering their usual lender will no longer help, the operator converting a family house into a six bed licensed HMO, the investor buying a block of flats on a single freehold title, and the landlord with twenty units spread across personal names and two companies who wants the whole thing refinanced sensibly.

It also includes landlords with properties the high street simply will not touch: above commercial premises, ex local authority, non standard construction, short lease, or let to a local authority or housing association on a corporate tenancy.

What we arrange

  • Portfolio buy to let mortgages for landlords with four or more mortgaged properties, in personal names, an SPV or a trading limited company
  • HMO mortgages for licensed and unlicensed houses in multiple occupation, including large HMOs with seven or more rooms
  • Multi unit freehold block mortgages, where several self contained flats sit on one title
  • Portfolio refinance, moving multiple properties onto one facility with a single lender and one set of fees
  • Capital raising against unencumbered or low geared properties to fund the next acquisition
  • Bridging and refurbishment finance for conversions, with an exit onto a term buy to let once the works are complete and the property is let
  • Holiday let and serviced accommodation mortgages where the income is short term rather than on an assured shorthold tenancy

What makes portfolio and HMO lending different

  • Portfolio landlords with four or more mortgaged properties are assessed on the whole portfolio, not just the property being financed
  • Lenders will want a full portfolio schedule, business plan and cash flow, and will stress test the entire book rather than one loan
  • HMOs require specialist lenders comfortable with licensing, room counts, planning and multiple tenancies
  • Valuations on HMOs and blocks may be done on an investment or commercial basis rather than bricks and mortar, which can change the loan available substantially
  • Most lending in this space is unregulated, since the properties are investments rather than the borrower's home, which gives flexibility but makes lender choice and structure especially important
  • Good preparation, meaning a clean portfolio schedule and clear cash flow, makes applications significantly smoother and faster

How the process works

  1. Portfolio review. Send us a schedule of what you hold: values, outstanding balances, rents, rates and lender names. We respond the same working day.
  2. Agree the structure. Personal names, SPV or existing company, and whether to finance property by property or move to a single portfolio facility.
  3. Stress test the numbers. We check the rental cover on each property against lender criteria before submitting anything, so nothing is submitted that will not pass.
  4. Select lenders with genuine appetite. HMO and portfolio appetite changes constantly, and a decline costs weeks and leaves a mark.
  5. Valuation and underwriting. Portfolio cases involve more underwriter questions than a single buy to let, and we handle those directly.
  6. Completion. We coordinate solicitors across multiple properties so redemptions and drawdowns happen together.

What lenders assess

Rental cover is the starting point. Lenders apply an interest cover ratio, testing the rent against a stressed interest rate, and the required cover is usually higher for higher rate taxpayers and lower for limited companies and five year fixed rates. That single mechanic is why the same property can support very different loan sizes at different lenders.

Beyond that they look at the overall gearing across the portfolio, aggregate rental income against aggregate debt, the mix and quality of properties, void history, your experience as a landlord, personal income and credit, and any adverse credit. For HMOs specifically they will want the licence or confirmation the property does not need one, the room count and sizes, planning position including whether Article 4 applies, and evidence of fire safety compliance.

What it costs

Portfolio and HMO buy to let is generally priced above mainstream buy to let, because the lender pool is smaller and the underwriting more involved. Loan to value is usually up to 75%, sometimes lower on large HMOs and blocks. Arrangement fees are commonly 1.5 to 2% of the loan and are often added to the balance rather than paid upfront.

Expect valuation fees to be higher than on a standard house, especially where a commercial valuation basis is used, and budget for legal fees on both sides. Five year fixed rates frequently allow a higher loan than two year products because of how the stress test is applied, so the cheapest headline rate is not always the one that raises the most money. Our broker fee is disclosed in writing before you commit.

How long it takes

A single portfolio buy to let typically completes in six to ten weeks. A multi property refinance takes longer because every title has to be dealt with, though well prepared cases move considerably faster. Where a purchase needs to complete quickly, or the property is not lettable yet, bridging first and refinancing afterwards is usually the sensible route.

Case study

A professional landlord with a growing portfolio refinanced an unencumbered three-unit residential investment block in South East England, securing a £950,000 interest-only mortgage on a 5-year fixed rate. The refinance released capital for further acquisitions while the lender's flexible approach to portfolio income kept the process moving — completing within 18 working days.

Why use a broker

As an NACFB member specialising in unregulated commercial and investment finance, we know which lenders actively want portfolio and HMO business and how to present a portfolio so it stands up under scrutiny. Portfolio underwriting is document heavy and inconsistent between lenders, and the difference between a case that completes in eight weeks and one that collapses at week six is almost always how it was packaged at the start.

We are registered with the NACFB and FIBA. Most buy to let lending is not regulated by the Financial Conduct Authority, and your property may be repossessed if you do not keep up repayments.

Frequently asked questions

What counts as a portfolio landlord?

Holding four or more mortgaged rental properties makes you a portfolio landlord under the current lending rules, at which point lenders assess your whole portfolio rather than just the property being financed.

Can I get a mortgage for an HMO?

Yes. Specialist lenders finance HMOs and multi unit freehold blocks, though the criteria around licensing, room count, planning and management are more detailed than standard buy to let, and the valuation basis may differ.

Should I hold my portfolio personally or through a limited company?

Many portfolio landlords use an SPV, a limited company set up to hold property, which can offer tax and planning advantages, and lenders are very comfortable with the structure. The right choice depends on your circumstances and you should take tax advice before restructuring, since moving properties into a company can trigger stamp duty and capital gains tax.

How is rental cover calculated?

Lenders test the rent against a stressed interest rate using an interest cover ratio. Limited company borrowers and five year fixed rates are usually stressed less harshly, which often means a higher loan than the same rent would support on a two year product.

Can I finance a property that is not lettable yet?

Not on a term buy to let. The usual route is a bridging or refurbishment facility to buy and complete the works, then a refinance onto a buy to let mortgage once the property is finished and let.

Do I need to be a licensed HMO to get an HMO mortgage?

Not always. Smaller HMOs may not require a licence depending on the local authority, but the lender will want to see the position confirmed. Where a licence is required, most lenders want it in place or clearly obtainable before completion.

Can I move my whole portfolio to one lender?

Often yes, and it can cut both cost and admin, with one facility, one set of fees and one review. It is not always the best answer though, since concentrating everything with one lender reduces flexibility if their appetite changes.

Will personal income affect a limited company application?

Usually yes, indirectly. Most lenders require personal guarantees from the directors and will look at personal income, credit and experience even though the borrower is the company.

Related guides

Speak to us about your portfolio

Send us your portfolio schedule and what you are trying to achieve, and we will tell you what is achievable and what it will cost. We respond the same working day. Contact Sadi's Commercial Finance.