What is the difference between an HMO mortgage and a buy-to-let?

Underwriting. An HMO is assessed on room income, licensing and planning, is often valued on the rent roll, and sits on a specialist panel. Standard BTL products either exclude HMOs or cap them at five or six rooms.

How many rooms can be funded?

Standard products handle up to six. Beyond that you are on specialist lenders who will go to 20 rooms and more, and who are usually where the investment valuation basis becomes available.

Can I get an HMO mortgage as a first-time landlord?

Sometimes. Most large-HMO lenders want twelve months of landlord experience, but smaller licensed HMOs are achievable for a first-timer with a good deposit and a managing agent appointed.

Do I need the licence before completion?

Lenders want the licence, or clear evidence the application has been submitted and will be granted. Completing with no application at all is the most common reason an HMO case fails at the last stage.

Can I refinance an HMO conversion onto a term mortgage?

Yes - that is the standard exit from a refurbishment bridge. Once the works are complete, the licence issued and the rooms let, a term HMO mortgage at investment value usually releases the original equity.

Buy-to-let and HMO finance

HMO Mortgage Broker

An HMO mortgage funds a house in multiple occupation - typically three or more tenants from more than one household sharing facilities - and is priced and underwritten differently from a standard buy-to-let. Lenders advance up to 75% loan to value on 5 to 25 year terms, and the decisive question is valuation basis: a specialist lender will value a large licensed HMO on its investment value derived from the rent roll, which can be materially higher than the bricks-and-mortar comparable a mainstream lender uses. Getting that basis right is usually worth more to a landlord than shaving a quarter point off the rate.

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At a glance

Criteria and pricing

What lenders on our panel will typically do on this product today.

Maximum LTV: Typically 75%
Rooms: Standard products to 6 beds; specialist lenders 7-20+ rooms
Valuation basis: Bricks and mortar, or investment value on the rent roll for larger licensed HMOs
Interest cover: 125-145% at a stressed rate, on the achievable room income
Licensing: Mandatory licence, or evidence the application is in progress
Article 4 areas: Funded where planning is in place - lenders check C4 / sui generis use
Borrower: Individual or SPV; first-time HMO landlords accepted with BTL experience
Term: 5-25 years; interest-only widely available

Worked example

Worked example - 7-bed licensed HMO

Room rate: £620 pcm all inclusive
Gross annual rent (95% occupancy): ≈ £49,500
Operating costs (bills, management, voids): ≈ £16,000
Net operating income: ≈ £33,500
Investment value at a 7.5% yield: ≈ £446,000
Bricks-and-mortar comparable: £340,000
Loan at 75% of investment value: £334,500
Additional borrowing vs comparable basis: ≈ £79,500

Figures are typical UK market ranges as at 2026 and are indicative only - your terms depend on the asset, the income, the exit and the lender we place the case with.

Honest fit

Who this works for — and who it does not

You are likely to qualify if

Mandatory HMO licence in place or applied for, where the property requires one
Correct planning use - C4, or sui generis for 7+ occupants
Room schedule, fire safety certification and the current tenancy schedule
Existing landlord experience for large or student HMOs; some lenders require 12 months
Deposit of 25% plus fees

This is the wrong product if

Unlicensed properties that should be licensed - lenders will decline until the position is regularised
Conversions still under works, which need refurbishment bridging first and a refinance after
Article 4 areas where the required planning has never been obtained
Landlords expecting investment valuation on a small 4-bed - that basis applies to larger licensed stock

Timescales

What actually happens, and when

Week 1
Structure and valuation basis
We decide whether the case is stronger on bricks and mortar or investment value, and select the lender panel accordingly.
Week 1-2
Offer in principle
Terms issued with the room schedule, licence and rent roll supplied up front.
Week 2-4
Valuation
An HMO-experienced valuer inspects, checks licensing and comments on room sizes and fire safety.
Week 4-8
Legals and completion
Six to eight weeks is normal on a purchase, faster on a straight refinance.

Questions

Frequently asked

Semi-commercial mortgage Refurbishment bridging loan Property development finance Commercial property finance