Commercial buy-to-let mortgage advice in the UK

Commercial buy-to-let mortgages for UK landlords and investors

Buying or refinancing business premises to let? We assess the property, tenant, lease, rent, deposit and borrower before explaining realistic lender routes.

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Commercial investment mortgage advice

Quick answer

What is a commercial buy-to-let mortgage?

A commercial buy-to-let mortgage, often called a commercial investment mortgage, helps landlords buy or refinance a property with a business tenant. It is different from a standard residential buy-to-let mortgage because lenders assess the commercial property, the lease, the tenant profile, the rental income and the borrower structure in more detail. It is also different from an owner-occupied commercial mortgage, where the borrower’s own trading business uses the premises and trading affordability carries more weight.

For example, it may be suitable for shops, offices, workshops, light industrial units, warehouses, surgeries, nurseries, restaurants, mixed-use buildings and other property where income comes from a commercial occupier. However, some cases need careful positioning because of lease length, tenant type, valuation comments, credit history or the way the borrower is set up.

How Count Ready reviews the case

In practice, Count Ready’s role is to sense-check the case before lender approach. We look at what you are buying or refinancing, how the rent supports the borrowing, how much deposit or equity is available and which lender routes appear realistic.

Where it can help

Commercial buy-to-let is useful when the property income needs proper lender judgement

Because every commercial property carries different risks, the right mortgage route depends on the property and the income behind it. These are common situations where a careful review can save time.

Purchase

Buying a tenanted commercial unit

You are buying a shop, office, warehouse or other business premises that already has a tenant or that you expect to let after completion.

Refinance

Remortgaging a commercial rental property

You want to review terms, release equity, repay a short-term facility or move from one lender to another without weakening the investment.

Limited company

Using an SPV or trading company

Lenders can often consider a company, but they still check directors, shareholders, accounts, experience, deposit source and the property itself.

Mixed use

Buying semi-commercial property

Where a property has a commercial part and a residential part, the lender route may sit between commercial, semi-commercial and specialist buy-to-let criteria.

Complex income

Short leases or unusual tenants

Some lenders are cautious where the lease is short, rent is informal, the tenant is connected to the borrower or the property would be harder to re-let.

Problem case

Adverse credit or a previous decline

A decline does not always end the enquiry. The next step is to identify whether the issue was credit, affordability, property quality, lease terms or lender appetite.

Lender checks

What lenders usually want to understand

In practice, commercial buy-to-let lending is more case-by-case than residential buy-to-let. As a result, a strong submission explains the security, the income and the borrower clearly.

1

Property type and location

Lenders look at what the building is used for, whether the location is easy to value and whether the property could be sold or re-let if needed.

2

Lease, tenant and rent

The lease length, rent level, tenant strength, payment record and any break clauses can all influence appetite and maximum borrowing. After completion, a new lease, renewal, surrender, variation, assignment or underletting may require written lender approval; the commercial mortgage covenants and lender consent guide explains what to check before you commit.

3

Deposit, equity and loan-to-value

Many commercial mortgage cases need a larger deposit than a residential buy-to-let. A 25% deposit is a common starting point, but higher deposits may be needed where risk is higher.

4

Rental cover and affordability

Lenders may stress-test rent and check other income, commitments and repayment route. The rent has to make sense after costs, void periods and lender assumptions.

5

Borrower profile

Experience, credit conduct, accounts, bank statements, company structure and source of funds can affect lender choice and how the case is presented.

6

Legal and valuation points

Title restrictions, planning use, environmental concerns, building condition and lease terms can raise questions during valuation or legal work.

Practical point: if the case has a deadline, share the lease, rent schedule, purchase price, deposit position and any valuation concerns early. It is usually easier to choose the right lender before an application than to repair a poorly matched application after a decline.

Compare lender fit

How should you compare commercial buy-to-let lenders?

Compare the lender’s appetite for the property, tenant, lease and borrower as well as the headline interest rate. A lower quoted rate is not useful if the lender will not accept the property, requires more deposit than you can provide or cannot work to the transaction timetable.

Property types, locations and lease structures the lender will consider.
Maximum loan-to-value, minimum deposit and rental-cover calculation.
Interest-only or repayment terms, amortisation and the required exit route.
Arrangement fees, valuation basis, legal requirements and early repayment costs.
Limited company, SPV, partnership or individual borrower criteria and any guarantee request.
Evidence, valuation and legal timescales for the actual deadline.

Google reviews

★★★★★
Live reviews

Read the original Google reviews before you enquire, rather than relying only on selected website quotes.

Check how clients describe the advice before you apply

Commercial buy-to-let enquiries can involve large deposits, valuation fees, leases and deadlines. It is sensible to check how a broker communicates, explains options and supports clients through mortgage decisions.

We link to the live Google profile instead of relying only on selected website quotes, so you can read the original feedback in context.

Evidence to prepare

What to have ready for a useful first review

You can enquire before every document is available. However, the more precise the facts, the more useful the lender discussion becomes.

Property address, property type, use, purchase price or estimated value.
Current or expected rent, tenant name, lease length and any break clauses.
Deposit or equity available and where the funds are coming from.
Borrower details, company structure, experience and recent accounts where relevant.
Any known valuation, legal, planning, title, environmental or credit concerns.

How we help

A clear route from first review to lender approach

Instead of sending every enquiry to every lender, the aim is to identify the realistic routes and present the case properly.

Initial conversation

We ask about the property, tenant, rent, deposit, ownership structure, timescale and any known issues.

Case sense-check

We consider whether the security, rental position and borrower profile appear to fit commercial buy-to-let criteria.

Lender route

Where the enquiry looks workable, we discuss lender types, likely evidence and what may strengthen the application.

Application support

If you choose to proceed, we help prepare the application and keep the case moving through valuation, underwriting and offer.

How long might it take? There is no single completion timescale. Valuation availability, legal work, the lease, property complexity and the quality of the evidence all matter. Tell us about any deadline before applying and see the commercial mortgage application process.

Official references

Official information used for this guide

These references support the distinction between owner-occupied and commercial investment property finance, the property and occupancy checks that matter, and the fact that regulatory treatment depends on the property and how it will be used. They do not replace lender criteria, legal advice or advice on your own circumstances.

Last reviewed: 23 July 2026. The linked British Business Bank, Business.gov.uk and FCA sources above were checked on this date. A mortgage secured only on premises used wholly for business can fall outside residential mortgage regulation; mixed-use and dwelling-related cases can be different. Regulatory status depends on the borrower, security and intended use, so confirm the position before committing.

Tell us about your commercial buy-to-let plans

Share the property type, purchase price or loan amount, rent, lease position, deposit or equity and your timescale. We will review the enquiry and explain which lender routes may be worth considering.

Start with the key details

If you do not know an exact figure yet, add an estimate or say you are unsure. The first review is there to clarify the route, not to test you.

Optional

Basic income before tax

Applicant 1

Optional

Basic income before tax

Applicant 2

Optional

Basic income before tax

Tell us your property value / purchase price or simply write I do not know yet

Optional

For mortgage requirements ( Optional )


Some commercial mortgage, commercial buy-to-let and business buy-to-let cases are not regulated by the Financial Conduct Authority. If your enquiry appears to fall into a regulated area, this will be explained before you proceed.

Helpful next reads

Helpful guides for your next questions

These guides answer the follow-up questions investors commonly ask after checking whether a commercial buy-to-let mortgage is realistic.

FAQs

Commercial buy-to-let mortgage questions

What is a commercial buy-to-let mortgage?

It helps finance a commercial property with a business tenant. The lender assesses the property, rent, lease, tenant, borrower and deposit rather than relying only on personal income or a simple residential buy-to-let rental calculation.

Is a commercial investment mortgage the same as commercial buy-to-let?

The terms are often used for similar finance where a commercial property is bought or refinanced to let to a business tenant. Lender assessment still depends on the property, rent, lease, tenant, borrower and ownership structure.

Is commercial buy-to-let the same as residential buy-to-let?

No. Residential buy-to-let usually relates to homes let to residential tenants. Commercial buy-to-let relates to property let to businesses, so lender criteria, valuation, lease review, legal work, deposit expectations and affordability checks can be different.

How much deposit do I need for a commercial buy-to-let mortgage?

Many commercial mortgage enquiries start from around a 25% deposit, but the actual requirement can be higher or lower depending on the lender, property, lease, tenant, borrower profile and valuation. Stronger security and income evidence can improve lender choice.

Can a limited company get a commercial buy-to-let mortgage?

Yes, a limited company or SPV can often be considered. Lenders will still review the directors, shareholders, accounts where relevant, source of deposit, experience, credit conduct and the property being offered as security.

Are commercial buy-to-let mortgages regulated?

Many commercial buy-to-let and business buy-to-let cases are unregulated commercial lending, but regulation depends on the borrower, property use and who occupies the property. We will explain if your enquiry appears to fall into a regulated category.

Can I remortgage a commercial buy-to-let property?

Yes, remortgaging may be possible to review terms, repay an existing facility, raise capital or move to another lender. The lender will look at current value, rent, lease, tenant, repayment history, equity and the reason for refinancing.

What documents should I prepare before enquiring?

Useful documents include the property details, purchase price or value, current or expected rent, lease or heads of terms, tenant details, deposit or equity evidence, company information, recent accounts where relevant and details of any known credit or property issues.

What rates and repayment structures are available?

Rates and repayment structures are priced case by case. Lenders consider the property, lease, tenant, loan-to-value, rent cover, borrower profile, term and wider funding costs. Depending on the case, facilities may be fixed, variable, repayment or interest-only.

Can I get a commercial buy-to-let mortgage without a tenant in place?

Some lenders can consider a vacant commercial property where there is a credible letting plan, adequate cash reserves and a marketable property. Other lenders require an acceptable tenant and lease before completion, so explain the vacancy and proposed use before applying.

Will a limited company director need to give a personal guarantee?

Company or SPV borrowing can involve personal guarantees from directors, but the requirement and amount vary by lender and case. The lender may also consider the deposit, rent cover, experience and any additional security. Guarantee terms should be understood before committing.

How do commercial buy-to-let lenders differ?

Lenders can differ on acceptable property types, lease length, tenant strength, rental-cover calculations, maximum loan-to-value, borrower structure, repayment terms, fees and evidence. Compare the criteria and total transaction fit, not only the headline interest rate.

How long does a commercial buy-to-let mortgage take?

There is no standard completion time. A straightforward case may move more quickly when valuation, legal, lease, identity and financial evidence are ready. Specialist property, lease or title issues, valuation concerns and incomplete evidence can add time, so raise any deadline before applying.

Last reviewed: 23 July 2026