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HMO Mortgage Broker

At Trinity Finance, we specialise in supporting landlords and investors with every type of HMO mortgage. Whether you’re looking at a standard buy-to-let mortgage for a smaller HMO or need a large-scale commercial HMO mortgage for a professional portfolio, we have the expertise to help.

As a whole-of-market broker, we have access to an extensive range of lenders and products, allowing us to find the right solution for your specific needs—whether you’re purchasing your first HMO or expanding an established portfolio. Our experienced team will guide you through the process from start to finish, ensuring you secure the most competitive terms available.

The most competitive HMO lenders often have specific criteria that borrowers must meet, making it essential to understand which products you may qualify for and how your property will be valued. That’s why we’ve put together the guide below—to explain the HMO mortgage options available for both new investors and existing landlords seeking a re-mortgage, along with the valuation methods attached to these products.

Best HMO Mortgage Rates UK September 2025 - 75% Loan to Value (LTV)
Personal name 75%LTV - 2 year fixed	4.58% (£1,295 product fee, £230 valuation)
Personal name 75%LTV - 5 year fixed	4.05% with a (£1295 product fee, free valuation)
Limited Company 75%LTV - 2 year fixed	3.02% (5% product fee)
Limited Company 75%LTV - 5 year fixed	4.75% (4% product fee, free valuation)

What is a HMO mortgage?

An HMO mortgage is a specialist buy-to-let loan for properties classed as a House in Multiple Occupation (HMO)—typically rented to three or more tenants from different households. There are many HMO mortgage lenders in the market, each with different pricing, valuation methods (bricks-and-mortar or investment/yield), affordability rules and eligibility criteria. As a result, HMO mortgage rates vary widely based on the lender, property size and location, your experience as a landlord and your credit profile, and they’re often higher than standard buy-to-let due to additional licensing and management requirements. Use our HMO mortgage calculator below to estimate borrowing based on rental income. As a whole-of-market HMO mortgage broker, Trinity Finance can compare multiple lenders, explain valuation options and criteria, and help you secure competitive HMO mortgage deals—whether you’re buying your first HMO or refinancing an existing property.

HMO mortgage criteria
Borrowers	Personal, Ltd co, LLP, Offshore Trusts
Repayment type	Interest only, repayment
Term	Up to 40 years
Experience	Not required
Max applicants	6
Experience	Market value 1 (MV1) Commercial valuation (yield based), Hybrid, or bricks and mortar.
Max rooms	None
Tenant types	Students, professionals, social housing, DSS

Types of HMO Mortgage (House in Multiple Occupation)

At Trinity Finance, we help both first-time investors and portfolio landlords secure HMO mortgages for Houses in Multiple Occupation (HMO). Every HMO is different: smaller properties are often acceptable to many lenders (subject to conditions around tenant mix), while larger or more complex HMOs—such as social housing arrangements or Sui Generis properties with seven or more rooms—can involve extra requirements around tenant types, planning and valuation. Below, we explain the key variations you may encounter, including HMO sizes, planning considerations and tenant categories, so you know exactly what to expect.

Student HMO mortgages

At Trinity Finance, we help landlords secure student HMO mortgages for properties let as Houses in Multiple Occupation (HMOs). Converting a student property into individual room lets can significantly increase rental yield, and in some cases may support a higher hybrid or commercial HMO valuation compared with standard buy-to-let.

A key factor is HMO licensing. Many student lets that meet the local definition of an HMO require a licence, and lenders will usually ask for either a valid licence or written confirmation that one isn’t required. Licensing rules can vary by local authority (including selective and additional licensing), so evidencing compliance is important for both valuation and mortgage approval.

Student HMOs are typically occupied around the academic year, often 9–10 months, which can affect rental income, valuation and affordability assessments. Some landlords use 10–12-month contracts to include summer, while others let the property short-term between terms or to students who stay on for work or internships. Our whole-of-market team can advise on the most suitable HMO lenders, structure your case around expected income, and help you secure competitive student HMO mortgage deals.

Large HMO mortgage

At Trinity Finance, we arrange large HMO mortgages for properties with seven or more bedrooms—and in some cases up to 50 rooms. For assets of this scale, lenders often instruct a local commercial valuer to produce an MV1 (Market Value 1) investment valuation, which prices the property on a yield-based model rather than simple bricks-and-mortar comparables. This approach can materially increase the valuation and potential borrowing when compared with standard valuations. Experienced landlords can access multiple lenders at 60–75% LTV; applicants with little or no HMO experience may still qualify, though rates are typically higher and minimum income thresholds may apply.

Large HMOs are generally classed as sui generis, which brings specific planning and licensing requirements. Planning permission is required for seven or more unrelated occupants regardless of Article 4 areas, and lenders will usually ask for evidence such as a decision notice or certificate of lawful use. Local authorities also assess community impact (parking, noise and layout changes) and require enhanced safety and amenity standards. Failure to secure the correct consent can jeopardise both valuation and mortgage approval.

Not every large HMO mortgage product automatically includes an MV1 valuation, so selecting the right lender and valuation route is essential. Yield-based valuations tend to favour properties in strong rental locations and well-specified schemes, where higher room rates can lift the assessed value. As a whole-of-market HMO broker, Trinity Finance will map your planning status, licensing position and income profile to the most suitable lenders, structure the application for affordability, and help you secure competitive large HMO mortgage terms.

Social housing HMO mortgage

At Trinity Finance, we arrange bespoke HMO mortgages for social housing properties— including those leased to housing associations, registered providers, charities and supported-living organisations, from short-term placements to long-term care settings. To place your case with the right lender, we review the head-lease in detail (provider, lease term, any break clauses and the expected tenant profile) so we can match you with a lender that accepts the specific lease structure and apply the most appropriate valuation method (e.g., hybrid/commercial yield-based valuations where available).

Typical social-housing HMO tenant profiles include:

Individuals requiring assisted care
People at risk of homelessness
Care leavers
Ex-offenders

Lease length & registration: Many HMO lenders limit the permitted head-lease term between the borrower and the provider (some cap at 5 years). Any lease of 7 years or more must be registered with HM Land Registry; specialist lenders that allow 7-year+ leases will usually require registration before completion.

Planning & licensing: While certain supported-housing arrangements may benefit from local exemptions, larger social-housing HMOs may still require formal planning consent and/or an HMO licence. Lenders often ask for evidence of compliance regardless of exemptions.

With our whole-of-market access and sector experience, Trinity Finance will align your lease terms, tenant mix and compliance position with receptive lenders and help you secure a tailored social-housing HMO mortgage on competitive terms.

PBSA mortgage

At Trinity Finance, we arrange PBSA (Purpose-Built Student Accommodation) mortgages for developments designed specifically for students—ranging from traditional halls of residence to dedicated student apartment blocks with shared amenities such as gyms, games rooms and Wi-Fi. PBSA schemes come in many configurations, and some larger complexes now include sections operated as serviced accommodation or other mixed-use elements.

While PBSA is not classed as an HMO by definition, in certain cases we can place the deal with HMO mortgage products where the building is residential in facilities and configuration. That said, larger schemes—particularly those with extensive amenities—are usually better suited to commercial mortgage lending. We can support both purchases and remortgages, including mixed-use PBSA where part of the building is commercial or short-stay.

In planning terms, PBSA in the UK typically falls under the Sui Generis use class (“of its own kind”). Local policy and scheme specifics can introduce variations, especially where on-site commercial space, gyms or additional amenities are included, so it’s important to consider planning status alongside funding options.

High-rise PBSA can require specialist underwriting. Lenders may ask for an EWS1 (External Wall System) form to evidence cladding safety—often a prerequisite for both HMO-style and commercial lenders on taller buildings. Our team will guide you on the documentation lenders expect and match you with providers actively financing PBSA.

For valuations, PBSA is typically treated as a commercial investment asset, so a yield-based (investment) valuation is often more appropriate than a purely residential comparable or hybrid approach. We’ll help you select the right valuation route and lender to reflect the property’s true income profile and support strong borrowing terms.

Small HMO mortgage

At Trinity Finance, we help you choose the most cost-effective route to finance a small HMO. Not all Houses in Multiple Occupation (HMOs) require planning permission or licensing; where that’s the case, a handful of lenders may allow a standard buy-to-let mortgage for an HMO, often at sharper rates than specialist HMO or commercial products. Options for limited company (SPV) HMO mortgages are narrower, but there are still viable choices—and for small HMOs there’s a wide range of dedicated HMO mortgage products that we compare across the whole market to secure competitive pricing.

Whichever mortgage you use, the valuation method must fit the property so that the funding level is adequate. On small or more basic HMOs, lenders typically instruct a straightforward bricks-and-mortar valuation—quicker, simpler and usually cheaper than commercial assessments—and pricing can be closer to mainstream buy-to-let. Many lenders will also consider HMO mortgages with no prior HMO experience, keeping products competitive for first-time HMO landlords.

For higher-spec small HMOs or larger assets, bespoke HMO mortgage products may be more suitable. In these cases, lenders may use a hybrid or MV1 (investment/yield-based) valuation that factors in room rents and overall income potential—especially relevant for properties with premium finishes, en-suites and enhanced communal facilities. While these products can carry higher rates or fees, the valuation can better reflect the property’s true yield and support stronger borrowing.

Choosing between bricks-and-mortar and yield-based valuations depends on the property’s size and specification, your investment strategy (e.g., maximising long-term income from a premium HMO), and local market demand. In high-demand areas, income-led valuations often make sense; for simpler properties, mainstream approaches can deliver lower costs.

As a whole-of-market HMO mortgage broker, Trinity Finance will assess licensing and planning status, advise on the right valuation route, compare buy-to-let vs specialist HMO options (including limited company lending) and negotiate competitive HMO mortgage terms tailored to your goals.

DSS HMO mortgage

At Trinity Finance, a DSS HMO mortgage (for properties let to tenants supported by the former “DSS” – now typically Housing Benefit/Universal Credit) can be a smart way to enter or grow in the social housing market. Because rent is subsidised and often paid directly via the local authority, these tenancies can deliver more predictable cash flow than standard private lets. Many HMO mortgage lenders will consider DSS-led HMOs with loan-to-value (LTV) ratios typically between 55% and 85% (lender-dependent), giving investors the ability to leverage more of a property’s value while keeping upfront capital lower.

These products are available to individual landlords and limited company (SPV) borrowers, and a number of lenders will consider first-time HMO investors, subject to criteria. Lenders may also offer useful features such as product transfers (switching to a new deal with the same lender at the end of a fixed term) and further advances (borrowing additional funds against increased equity) to help with refurbishments, expansions or additional purchases. As always, tax treatment varies—limited companies can be advantageous for some investors—so seek independent tax advice.

With our whole-of-market access, Trinity Finance matches your tenant profile, lease structure and income plan to receptive lenders, then manages the application through to completion. The result is a tailored DSS HMO mortgage solution aimed at steady income, competitive pricing and long-term portfolio growth.

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Do I need planning permission for an HMO mortgage?

It depends on the location and size of your property. Outside Article 4 areas, converting a property to an HMO for up to six occupants (Use Class C4) is usually allowed under permitted development, so formal planning permission is not normally required. However, seven or more occupants are typically classed as sui generis, which does require full planning consent—something lenders will expect to see (or a certificate of lawful use) when assessing a sui generis HMO mortgage. Inside an Article 4 area, local controls remove permitted development rights, so planning permission is required even for small HMOs.

At Trinity Finance, we can guide you on what evidence lenders will need and arrange the right funding route. For new projects and conversions, we also source HMO development finance and refurbishment loans, with facilities available up to 75% of GDV (subject to lender criteria).

What is article 4?

Article 4 directions are used by UK local planning authorities to remove certain permitted development rights within defined areas. In practice, they’re often applied to restrict the change of use from C3 (dwelling houses) to C4 (small HMOs for 3–6 unrelated people). The aim is to manage HMO density—common near universities and city centres—protect housing quality and support community balance.

For HMO mortgages, lenders will expect evidence that the planning position is compliant. If you’re buying or refinancing in an Article 4 area, secure either formal planning permission or a Certificate of Lawful Use (COLU) before completion wherever possible.

HMOs with fewer than 7 rooms

For small HMOs (up to 6 occupants), check your council’s Article 4 map to confirm whether a change of use to C4 needs planning consent. Many authorities restrict new conversions in hotspot areas. When applying for finance, most lenders will ask for planning approval or a valid COLU—applications are commonly declined without it, even if the property is already let.

HMOs with 7 or more rooms

Larger HMOs (typically sui generis) require full planning permission or a COLU to satisfy lender requirements. These schemes are subject to tighter planning and licensing controls, and mortgage underwriters will want this evidence upfront, whether you’re purchasing, refinancing or converting.

At Trinity Finance, we’ll review your planning status, advise what lenders will accept, and source competitive funding tailored to your HMO and location.

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Do i need planning permission for a hmo purchase?

Yes. If your HMO is in an Article 4 area or has 7+ bedrooms, most HMO mortgage lenders will require formal planning permission or a Certificate of Lawful Use (COLU) for the property to be deemed compliant. This also applies to smaller HMOs (4, 5 or 6 bedrooms) located within Article 4 zones. Lenders typically want this evidence at application, so for purchases—especially if you’re buying with cash and plan to remortgage—it’s best to obtain it in advance. Without the correct planning evidence, most lenders will decline the case regardless of rental income or property value.

You’ll also need the appropriate HMO licence. This is usually reviewed at valuation and again during the legal stage, and some lenders will ask for a copy of the licence before issuing a formal HMO mortgage offer. Share these documents with your Trinity Finance specialist as early as possible to keep your timeline on track.

Outside Article 4 areas, some conversions may be possible under permitted development, but always confirm with your local authority and seek written confirmation. Having the right evidence in place now will help avoid issues when refinancing or selling the HMO later.

Certificate of Lawful Use

At Trinity Finance, a Certificate of Lawful Use (COLU) is often essential for HMO funding. Issued by your local planning authority, a COLU confirms that a property’s existing use is lawful under planning rules—useful where a House in Multiple Occupation (HMO) has been operating without formal planning consent for that use.

Buying an HMO established before Article 4

If the HMO was operating before an Article 4 direction was introduced, lenders will usually want a COLU to evidence lawful HMO use. Ideally, the vendor provides this during the sale. If not, you may apply for one yourself (to evidence “grandfather rights”), but approval isn’t guaranteed—so securing it from the seller is strongly recommended.

Remortgaging an HMO created under permitted development before Article 4

Where a property was converted to HMO use under permitted development prior to Article 4 taking effect, owners typically need to apply for a COLU and supply proof of continuous HMO use (e.g., tenancy agreements) covering the relevant period. This documentation helps establish the property’s legal status for lenders and smooths the remortgage process.

If you’re unsure whether you need a COLU—or what evidence lenders will require—Trinity Finance can review your planning position and guide you through the application and mortgage.

Certificate of Lawful Use

At Trinity Finance, if you’re buying an HMO and the seller owned it before an Article 4 direction was introduced, they may never have obtained a Certificate of Lawful Use (COLU). In that case, most HMO mortgage lenders will ask you (the buyer) to secure a COLU to prove the property’s HMO use is lawful. Lenders commonly require a Certificate of Lawful Use or Development to confirm the HMO complies with local planning rules—especially where the legal status is unclear or the property’s use/structure has changed.

How to apply for a COLU

Gather evidence: Tenancy agreements, utility/council tax bills, sworn statements, historic planning documents—anything showing continuous HMO use.
Check your council’s requirements: Each local authority has its own forms, fee scales and evidence lists—confirm what’s needed before you apply.
Complete the application: Provide full property details, current use, dates and supporting documents that demonstrate lawful HMO use.
Submit and pay the fee: Send the application to the local planning authority (fees vary by council and property).
Await the decision: Reviews can take several weeks and may include requests for more evidence or a site visit.

Tip: Start the COLU process as early as possible—particularly on purchases (including cash buys you plan to remortgage). Share all planning evidence with your broker and solicitor upfront to avoid delays. Trinity Finance can review your planning position, advise what lenders will accept, and structure your HMO mortgage application accordingly.

Speak to an expert HMO Mortgage adviser from Trinity Finance

Our specialist HMO mortgage brokers are here to guide you through the entire mortgage and finance process, helping you secure the best HMO mortgage deal tailored to your needs.

Louis Chalk

HMO Associate Director

Emma Taylor

HMO Mortgage Consultant

Omer Mehmet

HMO Managing Director

Call us: 01322 907 000

Email Us

HMO licensing requirements

At Trinity Finance, we know that HMO licensing is crucial for both compliance and mortgage approval. In the UK, Houses in Multiple Occupation (HMOs) must meet defined safety, space and amenity standards, and lenders will usually ask for a valid licence or written confirmation that a licence isn’t required (depending on the property and location) when assessing an HMO mortgage.

The main HMO licensing types:

Mandatory licensing: For HMOs with 5 or more occupants forming 2+ households (applies to houses, flats and some conversions).
Additional licensing: Introduced by some councils for smaller HMOs or specified property types—rules vary by area.
Selective licensing: Applies to all privately rented homes (not just HMOs) within designated zones to raise standards and landlord accountability.

Why your council matters:

Requirements differ by local authority. Some operate only mandatory licensing; others add additional and/or selective schemes. Licences are issued by the council—typically up to 5 years—and may be reviewed or renewed. For mortgage applications, most lenders want a copy of the licence or evidence of exemption at, or soon after, application.

How we help:

As a whole-of-market HMO mortgage broker, Trinity Finance checks your licensing position, matches you with lenders who understand local rules, and secures a suitable, competitive HMO mortgage for your property.

Strategies for Managing Article 4 Implications

At Trinity Finance, we recommend three essentials when buying an HMO in or near Article 4 areas. Pre-purchase research: check the local council’s Article 4 map and policies before you commit—this can affect permitted use, conversion potential, rental yield and your choice of HMO mortgage. Seek expert advice: speak with a planning consultant or legal adviser who understands local rules; we can also flag what lenders will expect (e.g., planning consent or a COLU). Plan for longer timelines: applications in Article 4 zones often take longer, so build extra time into your finance and completion schedule to account for planning and lender due diligence.

HMO valuation methods

At Trinity Finance, we source cost-effective HMO mortgage solutions tailored to your circumstances and the property itself—factoring in build/construction type, tenant mix, and the most suitable valuation route. Below, we outline the three main HMO valuation methods (bricks-and-mortar, hybrid and investment/yield) and how they apply to HMOs of all sizes, use classes, construction types and tenancy profiles.

MV1 (Market Value 1) YEILD BASED METHOD | COMMERCIAL

At Trinity Finance, high-spec HMOs—especially where you’re following a Buy, Refurbish, Refinance (BRR) strategy—can often benefit from a yield-based (MV1) valuation at refinance. This route focuses on the income the property generates and can help maximise the valuation used for lending, with many cases targeting up to 75% LTV (subject to lender criteria).

How MV1 yield-based valuations work

MV1 (Market Value 1) valuations assess value primarily from rental income rather than purely bricks-and-mortar comparables—well suited to premium HMOs with en-suites, high-end finishes and strong demand.

Net rent calculation:

Start with potential gross rent, then deduct an allowance for voids and maintenance—often 20–25%—to arrive at net rent.

Apply a yield multiplier:

The valuer multiplies the net rent by a multiplier derived from local HMO yields (the multiplier is the inverse of the yield). Illustrative examples:

14% yield → ~7.1x multiplier

12% yield → ~8.3x multiplier

10% yield → 10x multiplier

8% yield → 12.5x multiplier

6% yield → ~16.6x multiplier

This produces an investment-style value that can better reflect the property’s true earning power and support stronger borrowing at refinance.

What to consider

Local market dynamics: Room demand, location, and the property’s age/condition influence void and maintenance assumptions—and therefore valuation.

Professional input: Yields, deductions and methodology vary by area and asset. A RICS-qualified valuer sets the final approach and figures.

Important: This overview is for information only, not advice. For an accurate valuation and lending recommendation, speak to a RICS valuer and a regulated broker.

How we help: Trinity Finance will assess your BRR plan, advise on the most suitable valuation route (MV1, hybrid or bricks-and-mortar), and match you with receptive lenders to pursue competitive HMO mortgage terms.

Bricks and mortar valuations

At Trinity Finance, we often see bricks-and-mortar (B&M) valuations used to assess the market value of buy-to-let properties, including many Houses in Multiple Occupation (HMOs). This approach relies on recent, local comparable sales (typically within the last few months and close proximity) rather than the property’s rental income. For some HMOs—especially larger, income-driven assets—B&M can be inappropriate and may undervalue the property compared with an investment/yield-based valuation. Below we outline when B&M fits, and when a different route is likely to serve you better.

When bricks-and-mortar works

Smaller or non-licensable HMOs:
For modest HMOs with fewer rooms and a layout close to standard residential use, B&M is often sufficient and cost-effective. Many mainstream buy-to-let lenders prefer this method and may offer keener rates because the risk profile is simpler.

When it doesn’t

Larger, licensed HMOs (often 7+ rooms):
B&M usually fails to capture the higher, multi-let income and operational reality of bigger HMOs. The result can be a down-valuation versus an investment (yield-based) valuation, which explicitly reflects room rents and net operating income. In these cases, a yield-based approach is typically the fairer—and more fundable—route.

Our recommendation

Selecting the right valuation method is critical to funding levels and pricing. For larger, income-led HMOs, an investment/yield-based valuation generally aligns better with the business model and supports more accurate borrowing. For smaller HMOs, B&M can keep costs down and open up access to mainstream rates.

BRR with bricks-and-mortar: Buy, Refurbish, Refinance

The Buy, Refurbish, Refinance (BRR) strategy is common for small HMOs:

Buy: Acquire a property with scope to add value.
Refurbish: Improve layout/specification to enhance appeal and compliance.
Refinance: Revalue—often on a bricks-and-mortar basis—and refinance on improved terms if value has increased.

“Day-one” remortgage considerations

Some investors look to remortgage soon after purchase (the so-called day-one remortgage) once works are complete and value uplift is evidenced. Where permitted by lender criteria, the new loan may be based on the post-refurbishment market value rather than the purchase price, helping release equity and recycle capital. This tends to work best with smaller, less complex HMOs that fit mainstream BTL risk appetites.

How Trinity Finance helps

We’ll assess your property, licensing/planning position and investment strategy, then recommend the valuation route—bricks-and-mortar vs investment/yield-based (e.g., MV1/hybrid)—that best supports your goals. With whole-of-market access, we match you to lenders whose criteria, LTVs and pricing fit your HMO and timeline, and manage the application from start to finish.

Hybrid valuation

Hybrid valuations for HMO mortgages

At Trinity Finance, a hybrid valuation is a specialist route that can work well for small to mid-sized HMOs (typically five or six rooms or fewer). Unlike pure bricks-and-mortar or full MV1 (yield-based) valuations, a hybrid approach recognises specific feature upgrades while still assessing the property on a vacant possession (VP) basis—so it doesn’t factor rental income directly.

What a hybrid valuation recognises

Feature loadings: Added value for items that boost usability and tenant appeal—en-suites, licensing status, kitchenettes/secondary kitchens, upgraded fire safety, etc.
Best fit: Optimised, smaller HMOs where quality and configuration set the property apart from standard comparables, but where a full income/yield assessment isn’t appropriate.
VP basis: Assumes the property is vacant; it focuses on physical attributes and marketability rather than cash flow.

When to use (and not use) a hybrid valuation

Use it when your HMO’s spec and layout materially improve market value beyond basic comparables.
If your strategy relies on income uplift and yield, a commercial/MV1 valuation may be more suitable.

BRR & “day-one” remortgage using a hybrid valuation

If you’re following a Buy, Refurbish, Refinance (BRR) plan, some lenders may consider a remortgage soon after works complete on a hybrid basis—provided compliance is watertight.

Typical requirements

Planning & use evidence:

COLU (Certificate of Lawful Use/Development) where required, especially around Article 4.
Planning permission if the conversion needed it.

Regulatory sign-off:

Building Control completion for works (fire safety, sound insulation, layout, etc.).
HMO licence (or written confirmation it’s not required) per the local authority scheme.

Warranties/certification (where applicable):

New-build warranty or architect’s certificate for extensive works or conversions.

Why documentation matters

Strong, well-organised evidence of permissions, sign-offs and enhancements helps valuers recognise the feature loadings central to a hybrid approach—and can support a smoother “day-one” refinance.

Process Breakdown

Information gathering and advice

At Trinity Finance, the first step in your HMO mortgage application is to confirm the key details so we can recommend the right product. We’ll capture:

Property details
Tenant profile
Contract/lease type
Borrower information
Preferred valuation method
Rate and term preferences

Credit approval

Once you’re happy with our recommendation and give us the go-ahead, Trinity Finance will typically submit your case the same day to obtain a decision—there’s nothing to pay up to this point. If your Agreement in Principle (AIP) is approved, we’ll move to the full application stage, at which point any applicable lender and broker fees become payable.

Application, valuation & underwrite

Once your application is submitted, the valuation fee becomes payable. Depending on the lender, the valuation will be instructed immediately or after initial underwriting. When the valuation report is received and deemed satisfactory, the lender will issue a formal mortgage offer, and we’ll move you on to the legal/conveyancing stage.

Offer and completion

Once you’ve received your HMO mortgage offer, you’ll need legal advice. Your solicitor will handle the conveyancing and draw down the loan once all legal conditions are satisfied. Your Trinity Finance broker will continue to monitor the case post-offer—liaising with the lender and your solicitor—to help keep things moving smoothly through to completion.

HMO Mortgages Across the UK

Looking to finance a House in Multiple Occupation (HMO)?

At Trinity Finance, we provide expert support with HMO mortgages across the UK—whether you’re buying your first HMO, expanding a portfolio, or refinancing. With whole-of-market access to leading HMO lenders, we’ll match you to competitive HMO mortgage rates that fit your goals.

Use our HMO Mortgage Calculator to see how much you could borrow and compare HMO buy-to-let deals across England, Wales, Scotland and Northern Ireland. Our specialist HMO brokers make the process straightforward—guiding you through lender criteria, stress testing, planning/licensing and valuation methods from start to finish.

HMO Mortgages London

London remains one of the strongest markets for HMO investment, with sustained tenant demand and resilient yields. At Trinity Finance, we specialise in HMO mortgages in London—from sourcing competitive deals to navigating local rules, Article 4 directions, planning and licensing.

Whether you’re viewing an HMO for sale in London or refinancing an existing property, we’ll connect you with leading HMO lenders and negotiate excellent HMO mortgage rates tailored to your strategy.

First-time landlord or seasoned investor, we keep things simple—handling stress testing, valuation routes (bricks-and-mortar, hybrid, MV1), and lender criteria across key London boroughs, start to finish.

HMO Mortgages Scotland

Scotland’s HMO market has its own licensing and regulatory framework, so it pays to use a broker who understands the Scottish HMO licence process and local council rules. At Trinity Finance, we guide you through requirements and match you with lenders experienced in HMO regulations in Scotland, arranging tailored HMO buy-to-let finance across Glasgow, Edinburgh, Aberdeen and beyond. From licensing and valuation routes to lender stress testing and criteria, we’ll secure a competitive HMO mortgage aligned to your property and strategy.

HMO Mortgages Cardiff

Cardiff is a hot spot for HMO investment, driven by steady demand from students and young professionals. At Trinity Finance, we provide expert advice on buying, refinancing and licensing—from navigating the Cardiff HMO register to understanding HMO licensing and planning requirements. Our specialists work with lenders active in the Cardiff market to secure competitive HMO mortgage rates, and we’ll guide you through property searches, stress testing, valuations and remortgaging under the local HMO scheme.

FAQs

What is a HMO?

A property is defined as being an HMO when it is occupied by three or more unrelated tenants who have their own bedrooms but share facilities, such as a toilet, kitchen and bathroom. In other words, it’s a type of shared housing. Tenants in an HMO property pay separate rents and usually sign individual tenancy agreements. A standard buy-to-let property, on the other hand, is rented out to a single household, such as a family, couple or individual. For this type of tenancy, one tenancy agreement is signed and one rental payment is made each month.

For tenants, an HMO provides the opportunity to rent somewhere when they’re unable to afford rented accommodation on their own. From your point of view as a landlord, this enables you to collect a higher rent overall. This is because each tenant pays rent individually and you can charge more per tenant on that basis. When renting your property to a single household, however, you’re limited as to what you can charge.

As mentioned earlier, an HMO is a riskier investment than a standard buy-to-let property. There’s a higher turnover of tenants, the likelihood of more void periods and an increased need for maintenance. There’s also more wear and tear on the property. As a result, you need a specialist HMO mortgage instead of a standard buy-to-let one.

What is a HMO mortgage?

A HMO mortgage is more complex to arrange than a standard buy-to-let mortgage. It caters explicitly for multi-let or HMO properties, providing for multiple tenancies under the mortgage terms. This is different from a buy-to-let mortgage, the terms of which won’t allow you to rent out your property under multiple tenancies. If you take out a buy-to-let mortgage and then rent out your property as a HMO or a multi-let, you’ll be in breach of your mortgage terms. This can result in your lender taking legal action against you and, in turn, will also have a negative impact on your credit rating.

A mortgage for a HMO property usually takes slightly longer to process than one for a buy-to-let property. This is due to its complex nature, such as the multiple tenancies, HMO regulations, HMO licence and HMO planning permission. These requirements result in stricter lending criteria to minimise the lender’s risk. To help make the process faster, provide your dedicated HMO mortgage broker with all of the documentation needed as quickly as possible. They can then approach the lender most suited to your case for swift approval of your application. If your case is complicated, the mortgage process will take longer to complete than a standard case.

This niche mortgage is also usually more expensive, with higher rates and fees than a buy-to-let mortgage. Interest-only HMO mortgages tend to be a popular choice. This option means that you only have to pay the interest each month rather than repaying the capital. This helps to keep your monthly payments lower. You can arrange an HMO mortgage in your name or via a limited company, special purpose vehicle (SPV) or limited liability partnership (LLP), which will provide you with tax benefits.

HMO loan types

The type of loan you can have for a HMO property depends on the stage it’s at, as detailed below.

HMO mortgages and remortgages: These are for existing multi-let and HMO properties.
HMO refurbishment mortgages: Suitable for projects requiring either light or heavy refurbishment, these mortgages are for existing HMO properties that need refurbishment as well as for properties that are to be converted to HMOs.
HMO development loans: This type of loan is used to finance extensive build projects.

Not all lenders offer mortgages for HMO properties. Those who do provide them don’t necessarily deal with each of the different types. At Trinity Finance, we work with lenders specialising in each type of HMO loan and have access to exclusive broker-only deals. Lenders also have different criteria that have to be fulfilled for each of these HMO loan types. For the purpose of this guide, we’ll detail the criteria for standard HMO mortgages in the lending criteria section below.

Get expert help with an HMO mortgage

Our mortgage brokers, located throughout Kent, London and Edinburgh, are highly experienced in dealing with HMO loans and will approach the right lender for your needs. When you’re ready to proceed with your HMO investment, just give us a call on 01322 907 000 and we’ll be happy to help you. If it’s out of office hours, send an email to us at info@trinityfinance.co.uk or a message via our contact form. One of our specialist brokers will get in touch with you as quickly as possible. We’ll find the best HMO mortgage deal to suit your needs and maximise the financing option for your investment.

HMO mortgage lending criteria

As mentioned earlier, HMO mortgages are available to individuals, limited companies, special purpose vehicles (SPVs) and limited liability partnerships (LLPs). All HMO mortgage lenders have their own criteria depending on what type of borrower you are. They also take your circumstances and experience into account. To make sure your application is successful, we submit it to the lender whose HMO mortgage requirements can be met according to your situation. When applying for this niche mortgage, it’s not just you as the borrower who needs to meet the HMO mortgage requirements. The property you wish to buy also needs to fulfil certain specifications to be eligible.

Your eligibility for an HMO mortgage

Experience

Lenders usually expect you to be an experienced landlord before dealing with an HMO property. For example, having at least a year of experience in handling a buy-to-let investment. Some lenders won’t offer you a mortgage unless you’ve had a certain level of experience as an HMO landlord, such as 2 years. There are lenders, however, who consider first-time landlords. Part of a lender’s HMO mortgage criteria, particularly as a new landlord, may require you to instruct a third party to manage the property on your behalf.

Affordability

As with any mortgage application, the lender will assess your affordability and check your credit score. Some lenders insist that you have a minimum income, such as £25,000. Others offer a more flexible approach and offer mortgages without a minimum income requirement. The rental income is also usually taken into account, just like it is for standard buy-to-let mortgages. This often needs to meet a set percentage over the monthly mortgage payment you’ll have to make, such as 25% higher.

HMO mortgage deposit

You’ll need a substantial deposit for your HMO mortgage. Most lenders offer a maximum loan-to-value (LTV) ratio of 75%. This means you need to have deposit funds that equate to 25% of the property’s value. You may find that some lenders have more stringent requirements, offering much lower LTVs of 60%. In this case, you’d need to have a 40% deposit available. On the other hand, you may be lucky enough to secure a mortgage via a lender offering a higher LTV of 80% or even 85%.

The property specifications for an HMO mortgage

Some lenders insist that the property has a minimum value, such as £75,000, while others stipulate a maximum number of bedrooms. Lenders generally want to know:

How many lettable bedrooms there are
What communal rooms are available
How many storeys the property has
Where the property is located
The types of tenants that will be residing there, such as working professionals or students
Whether each tenant will sign an individual tenancy agreement
The rental income you expect to achieve
Whether an HMO licence is needed

As more risk is involved with an HMO investment, you may find that some lenders insist on a minimum number of tenants, proof of HMO planning permission or an HMO licence to be in place for the property. We’ll explain the possible need for an HMO licence below.

Do you need an HMO licence?

In Scotland and Northern Ireland, it’s mandatory to have a licence for your HMO property. In England and Wales, however, whether or not you need to apply for a licence depends on the size of the property and the local council’s licencing requirements. Large HMOs must have a licence. A property falls under this category if it’s rented to five or more tenants comprising more than one household and the tenants share facilities that can include a kitchen, toilet or bathroom. Smaller properties don’t necessarily need HMO licences as this is determined by the local council.

HMO licence validity and costs

An HMO licence is assigned to the property rather than to you as the landlord. Therefore, if you have more than one HMO property that falls under the licencing requirements, you need to obtain a licence for each one. If your property requires a licence and you rent it out without one, it’s considered a serious offence and you may be subject to an unlimited fine. An HMO licence is valid for up to 5 years, except in Scotland where licences are valid for a maximum of 3 years. Wherever your property is located, the licence must be renewed before it expires.

The costs for HMO licences vary depending on the local councils. Some provide fixed rates while others charge according to the number of bedrooms in the property. The fees can range from hundreds to over a thousand pounds. It’s important, therefore, to take this into account when working on the calculations for your HMO investment.

Lenders’ licence requirements

Due to the risk involved with HMO investments, some lenders only provide loans for licenced properties. Others, though, are happy to lend when properties don’t require an HMO licence. The time taken to approve licence applications varies between councils and lenders take this into account. Therefore, if you need a licence and don’t already have one, the lender will likely give you a time frame within which to apply for a licence while your mortgage application is being processed. This is on the proviso that you’re deemed to be ‘fit and proper’ to manage an HMO property. If you already have a licence for the property, this can help to accelerate the underwriting process.

Approval of the licence

You should be aware that licence applications aren’t always approved. You may need to make improvements to the property to bring it up to the required standards, for example, before you can reapply for a licence. Don’t worry if HMO investments are new to you. Our mortgage brokers, based in Kent, London and Edinburgh, can help determine whether you need an HMO licence for your property. They can also assist you with the application process.

What is a HMO valuation?

When applying for a mortgage for HMO purposes, a specific HMO valuation has to be carried out. This is usually done by a surveyor who’s registered with the Royal Institute of Chartered Surveyors (RICS). There are two valuation types for HMOs:

An HMO residential valuation, which is a brick-and-mortar valuation
An HMO commercial valuation, which is an investment-based valuation

Various factors affect the HMO valuation method used by a surveyor. These differ depending on the type of valuation to be carried out.

HMO residential valuation

A brick-and-mortar valuation is generally used for single (C3) dwellings. The valuation criteria typically include:

The size of the property, including the square footage and the number of bedrooms
Its condition
The current market value
Local comparable properties

HMO commercial valuation

This type of valuation is generally higher than a brick-and-mortar one. This enables investors to benefit from a lower LTV and, therefore, more competitive HMO mortgage interest rates. The valuation criteria typically include:

The size of the property, such as the number of units or bedrooms
Its condition
The density of HMO properties in the local surroundings
The planning permission use class
How the property will be managed
Whether an Article 4 direction applies
Amenities located near the property
Local comparable properties

The calculation method used for an HMO commercial valuation is based on the anticipated rental income, the operating costs and the yield. The operating costs can be between 15% and 35% at the surveyor’s discretion. The yield is also determined by the surveyor. The calculation used is:

HMO property value = (gross monthly rent – operating costs) x 12 / yield

HMO commercial valuation example

For example, using a gross monthly rent of £3,000, operating costs at 25% and a yield of 10%, the HMO property value would be £270,000:

(£3,000 – £750) x 12 / 10% = £270,000

Why are HMOs subject to stricter rules?

A: Because they involve multiple tenants and shared spaces, HMOs are regulated more tightly than standard buy-to-lets. Local councils enforce licensing on issues such as fire safety, room sizes, and property standards to protect tenants and communities.

Who are the best HMO lenders?

A: Active lenders include The Mortgage Works (TMW), Paragon Bank, Kent Reliance, Precise Mortgages, InterBay, Aldermore, Fleet, Foundation Home Loans, Keystone, Zephyr, Landbay, West One, The Mortgage Lender (TML), CHL Mortgages, Quantum Mortgages, Kensington, Hampshire Trust Bank (HTB), Shawbrook, LendInvest, MT Finance, Lendco, United Trust Bank (UTB), Pepper Money, Moda Mortgages, Leeds Building Society, and Metro Bank. Each has different criteria on property size, borrower experience, and valuations.

How does an HMO mortgage differ from a standard buy-to-let?

A: HMO mortgages usually require higher deposits, have stricter affordability stress tests, and are subject to licensing and compliance checks. Valuations may be hybrid or yield-based rather than standard bricks-and-mortar. Lenders also prefer borrowers with prior landlord or HMO experience

How can I find the best HMO mortgage rates?

A: Rates vary depending on loan size, property type, and borrower profile. Working with Trinity Finance gives access to specialist lenders and broker-only deals. We compare the true cost, factoring in rates, fees, and features, to ensure long-term value.

What is an HMO refurb mortgage?

A: An HMO refurb mortgage funds both the purchase and renovation of an HMO. It may be structured as short-term development finance with staged drawdowns, or as a mortgage with further releases after revaluation post-works.

Can I get a 1-year HMO mortgage?

A: Some lenders offer short-term HMO finance (1–2 years), often used when refinancing after refurbishment or preparing a property for resale. These products can be costly due to repeat fees but suit investors with a clear exit strategy.

What entities can hold an HMO mortgage?

A: HMOs can be purchased in personal names or via Special Purpose Vehicles (SPVs), limited companies, LLPs, trading companies, or trusts. Many lenders such as Paragon, Shawbrook, and HTB cater to company structures.

What deposit is required for an HMO mortgage?

A: Typically 25–40%. Some specialist lenders will consider 15–20% deposits if using commercial valuations and the rental income is strong. Higher deposits may be needed for large or complex HMOs or inexperienced landlords.

Can I use a HMO mortgage for an auction purchase?

A: Rarely, unless buying with extended completion timelines. For traditional auctions (28 days), bridging finance is usually more appropriate. Once the property is refurbished and licensed, it can be refinanced onto an HMO mortgage.

What income do I need for an HMO mortgage?

A: Some lenders require a minimum income (often £25k), but many do not, provided rental income meets affordability stress tests.

Can I live in my HMO property?

A: Generally no. Most HMO mortgages are unregulated and require the borrower not to live there. If you intend to reside, you need a regulated product instead.

Can I get a HMO mortgage near powerlines or power stations?

A: Some lenders restrict lending or lower LTVs, but many (e.g. Kent Reliance, Precise, Fleet) will lend up to 75% LTV if disclosed early.

What is the minimum loan size?

A: Often £25k, though criteria vary by lender.

What is an HMO refurbishment mortgage?

So far, we’ve focused on standard HMO mortgages in this guide but there are also HMO refurbishment mortgages to consider. These allow you to finance renovation or construction work, which includes loft conversions and extensions among other projects. As the property won’t meet the criteria for a standard HMO mortgage, an HMO refurbishment mortgage is required. This is suitable for:

An existing HMO property that needs refurbishment
A property that is to be converted to an HMO

You can typically borrow up to an LTV of 75% for an HMO refurbishment mortgage. Usually, you’ll have a set period within which to complete the refurbishment work after you’ve received the HMO loan. For example, the work should be completed within 6 months of the funds becoming available to you.

For a property that will need an HMO licence, you’ll need to ensure that the licencing requirements are met. These can include locks on each bedroom door, a fire alarm and fire doors, for example.

Considerations for an HMO mortgage

The HMO mortgage product that’s best for you will depend on your preferences. You may need the HMO finance quickly, for example, or prefer a higher LTV. Our specialist mortgage brokers will check your circumstances in detail and approach the lender most suited to your needs. They know which lenders offer the different HMO mortgage types, the ones that can process applications quickly and those that agree to higher LTVs. HMO mortgage rates vary between lenders and are based on your circumstances so that will also determine the products available. As well as that, you need to factor in the type of HMO mortgage valuation that will be carried out before choosing from the range of HMO mortgage products available.

Our expert brokers will take everything into consideration and present you with the best HMO mortgage deals available. These will include exclusive HMO deals only offered by lenders through brokers.

Boost your investment opportunities with an HMO mortgage

At Trinity Finance, we’re here to help you realise your HMO investment goals. Whether you’re an experienced or first-time landlord, we’ll approach the right lender on your behalf and secure the best mortgage deal for your needs. As mentioned above, lenders often only promote HMO mortgages through brokers rather than on the open market. This means you can rest assured we have access to the latest deals. We have good relationships with flexible lenders who can provide bespoke solutions for your HMO mortgage, remortgage, refurbishment mortgage or development finance needs.

Simply call us on 01322 907 000 to discuss your HMO investment requirements with one of our specialist mortgage brokers. We can offer advice on having an HMO mortgage in your name or via a limited company, special purpose vehicle (SPV) or limited liability partnership (LLP). We can also provide professional guidance on the legal requirements for HMO properties and your tax obligations as a landlord. As well as arranging your HMO mortgage, our financial experts can ensure that you have the correct insurance cover in place. If it’s out of office hours, send your HMO enquiry to us at info@trinityfinance.co.uk or via our contact form. One of our mortgage experts will reply to you as quickly as possible with more information.

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

Yes, although fewer HMO mortgage lenders offer them to borrowers without HMO experience, which limits your choice of mortgage product. Some lenders insist on general letting experience due to the complex nature of HMOs. This means you may need at least 1 year of experience in handling a buy-to-let investment if approaching certain lenders. When using the services of our specialist HMO mortgage brokers, your application will only be submitted to a lender accepting first-time landlords. This ensures your chances of approval for an HMO mortgage.

Do you need HMO planning permission?

It’s not always necessary to obtain HMO planning permission when converting a residential property to an HMO. Under the General Permitted Development Order (GPDO), which applies in England, a dwelling (class C3) can be converted into an HMO of up to six unrelated individuals (class C4) without planning permission. The exception to this is if an Article 4 direction applies to the area that the property is located in. This is when permitted development rights have been removed by the local council. In this case, you would need to apply for HMO planning permission.

An HMO with more than six residents is considered to be a large HMO (sui generis). Permitted development rights don’t apply to large HMOs. This means you would have to apply for planning permission to change the use of a property from class C3 to a large HMO.

Can you get an HMO mortgage with bad credit?

Yes, we work with lenders offering HMO mortgages to borrowers with a low credit score or an adverse credit history. You may be more limited in your choice of HMO mortgage deals and not benefit from such competitive rates but you can still be approved for an HMO mortgage. Our mortgage brokers know which lenders to approach for this and can advise you on ways to improve your credit rating before submitting your application.

What is a buy-to-let HMO mortgage?

A: An HMO buy-to-let mortgage is designed for landlords purchasing or refinancing a property let to multiple unrelated tenants. Specialist lenders such as The Mortgage Works (TMW), Paragon, Kent Reliance, Precise, Fleet Mortgages, Foundation Home Loans, and Aldermore offer these products, often using hybrid or yield-based valuations.

How do buy-to-let and commercial HMO mortgages differ?

A: BTL mortgages are usually cheaper and suit smaller HMOs. Commercial HMO mortgages are more flexible, often using yield-based valuations, and are suited to larger or more complex properties. Rates are typically higher with commercial products but they may allow higher borrowing.

Why might a lender require a Certificate of Lawfulness (COLU)?

A: A COLU proves the property’s HMO use is legally established. Lenders request it to ensure planning compliance, especially in Article 4 areas or where the property has been converted recently.

Why should I use an HMO mortgage broker?

A: HMO mortgages are more complex than standard BTL. A broker like Trinity Finance provides access to specialist lenders, ensures applications meet criteria, compares costs, and advises on strategy, maximising approval chances and securing competitive rates.

What is Article 4 in relation to HMOs?

A: An Article 4 Direction removes permitted development rights, meaning planning permission is needed to convert a property into an HMO. Councils apply it to control HMO density in certain areas. Lenders often require evidence of planning approval or COLU in Article 4 zones.

Can first-time buyers get an HMO mortgage?

A: Yes, but options are limited. Most lenders prefer applicants with rental experience. Workarounds include using bridging finance, refurbishing, then refinancing once classed as an “experienced landlord.”

Do I need a fire risk assessment for an HMO mortgage?

A: Yes. Fire risk assessments are legally required under UK regulations for HMOs. Lenders typically request sight of the report before completion to ensure compliance and safety.

Is it hard to get an HMO mortgage?

A: They are harder to secure than standard BTL due to stricter licensing, valuation, and experience requirements. However, with the right preparation and a specialist broker, many landlords successfully obtain HMO finance.

What are common conditions attached to HMO mortgages?

A: Conditions often include: property must be fully licensed, landlord must not reside in the property, minimum property values (£75k+), minimum loan sizes (£25k+), and adherence to local council HMO regulations.

What is a “day one” HMO remortgage?

A: A product allowing landlords to remortgage immediately after purchase, without waiting the historic 6-month period. Useful for Buy, Refurbish, Refinance (BRR) strategies.

Is a warranty needed for new build or converted HMOs?

A: For conversions, a Professional Consultant’s Certificate (PCC) is usually sufficient. For new builds, lenders often require a 10-year new build warranty.

What is the minimum property value for an HMO mortgage?

A: Typically £75k+, though some lenders require £100k+ for larger HMOs.

What is an HMO building?

A: Any building configured to house multiple separate households, typically sharing facilities. This includes converted houses or purpose-built HMOs.