Commercial Buy-to-Let Mortgages: Commercial property can produce rental income, but the finance must reflect how the building will be occupied.
A lender does not assess only the property’s market value. It also considers the tenant, lease, rental income and future saleability.
This makes commercial buy-to-let lending different from standard residential buy-to-let finance.
At a Glance
A commercial buy-to-let mortgage finances commercial premises that will be rented to another business.
Eligible properties may include offices, shops, warehouses, industrial units and healthcare premises.
Lenders commonly assess:
- the property’s value and condition;
- the deposit or available equity;
- current and expected rental income;
- the tenant’s financial strength;
- the remaining lease term;
- the borrower’s experience and finances;
- the property’s future marketability.
Commercial lending criteria differ between lenders. Rates, fees and deposit requirements usually reflect the perceived risk of the entire transaction.
What is a Commercial Buy-to-Let Mortgage?
A commercial buy-to-let mortgage is secured against commercial property rented to an independent business tenant.
The borrower owns the premises but does not usually operate its own business from the property.
For example, an investor might buy a warehouse and lease it to a distribution company.
Other possible property types include:
- offices;
- retail units;
- industrial premises;
- workshops;
- storage facilities;
- restaurants and hospitality premises;
- medical or healthcare buildings;
- purpose-built commercial units.
This arrangement is also called a commercial investment mortgage.
It differs from an owner-occupied commercial mortgage. With owner-occupied finance, the borrower’s business normally trades from the property.
Why was the 2023 Lending Environment Important?
The cost of borrowing increased considerably before this article’s publication.
The Bank of England raised Bank Rate to 5.25% on 3 August 2023. It was the fourteenth consecutive increase since December 2021. Read the August 2023 Bank Rate announcement.
Higher funding costs affected commercial mortgage pricing and lender affordability calculations.
Some investors also saw valuations lower than expected. A lower valuation can increase the required deposit or reduce the available loan.
During uncertain markets, the quality of the property income becomes especially important.
Property creates the security. However, rent usually creates the means to service the debt.
How is Commercial Buy-to-Let Affordability Assessed?
Commercial lenders do not normally use one universal affordability formula.
They review whether the property’s rental income can support the proposed borrowing.
This may involve calculating the interest cover ratio, often called ICR.
The lender compares the annual rent with the annual mortgage interest or required debt payments.
For example, a lender may require rent to exceed the assessed interest cost by a stated margin.
The precise calculation may depend on:
- the requested loan amount;
- the mortgage interest rate;
- whether the rate is fixed or variable;
- the lender’s stress rate;
- the property type;
- the tenant’s strength;
- the remaining lease term.
A property may produce enough rent today but still fail a stressed affordability assessment.
Investors should therefore test borrowing against higher costs, void periods and property expenses.
How Much Deposit is Required?
Commercial buy-to-let mortgages usually require a larger deposit than standard residential mortgages.
The required contribution depends on the lender and transaction.
Lenders may consider:
- the loan-to-value ratio;
- property type and condition;
- location and local demand;
- tenant quality;
- lease length;
- rental income;
- borrower experience;
- credit history;
- alternative uses for the property.
Specialist or difficult-to-sell premises may require more borrower equity.
A lower loan-to-value ratio can reduce lender exposure. However, it does not make an unsuitable property acceptable automatically.
Why Does the Commercial Lease Matter?
The lease establishes the legal relationship between the property owner and business tenant.
Lenders may examine:
- the tenant’s name and legal status;
- the rent payable;
- the lease start and expiry dates;
- rent review provisions;
- break clauses;
- repairing responsibilities;
- permitted property use;
- restrictions affecting occupation;
- whether the lease is transferable.
A long lease can provide income visibility. However, its value also depends on the tenant’s ability to pay.
A lender may therefore assess the tenant’s covenant strength.
This means reviewing the tenant’s financial standing and its ability to meet the lease obligations.
A long lease with a weak tenant may not provide the security an investor expects.
What Information May the Lender Request?
The required evidence depends on whether the applicant is an individual, partnership or limited company.
Documents may include:
- personal identification and address evidence;
- bank statements;
- proof of deposit;
- an asset and liability statement;
- details of existing property borrowing;
- business or company accounts;
- tax calculations and tax year overviews;
- company bank statements;
- current tenancy or lease documents;
- rental schedules;
- property details and valuation information;
- evidence explaining the source of funds;
- details of the applicant’s property experience.
The lender may also request information about the tenant.
Incomplete information can delay underwriting. It may also prevent the lender from understanding the transaction correctly.
Preparation is therefore not simply an administrative exercise. It is part of presenting the lending case.
Can a Limited Company Obtain Commercial Buy-to-Let Finance?
Commercial property may be bought through a limited company, partnership, pension structure or individual ownership.
The suitable route depends on the transaction and professional tax advice.
A lender assessing a company application may examine:
- company accounts;
- trading history;
- directors’ experience;
- company credit commitments;
- group structure;
- shareholder information;
- proposed rental income;
- directors’ personal financial positions.
Personal guarantees may be requested from directors or shareholders.
Security requirements vary, so applicants should understand their potential liability before proceeding.
Investors purchasing residential rental property through a company should review limited company buy-to-let mortgages.
Tax treatment depends on individual circumstances. Applicants should seek independent tax and legal advice.
Commercial Buy-to-Let Versus Residential Buy-to-Let
Commercial buy-to-let usually concerns property occupied by a business.
Residential buy-to-let normally concerns property occupied by people as their home.
The differences can include:
| Assessment area | Commercial buy-to-let | Residential buy-to-let |
|---|---|---|
| Occupier | Business tenant | Residential tenant |
| Lease | Commercial lease | Residential tenancy |
| Valuation | Investment and commercial value | Residential market and rental value |
| Income assessment | Rent, lease and tenant strength | Expected residential rental income |
| Property examples | Shop, office or warehouse | House or residential flat |
| Product structure | Individually assessed commercial loan | Specialist residential buy-to-let product |
| Fees | Often individually priced | Usually product-based |
Investors considering houses or residential flats should review the main buy-to-let mortgage guide.
A block of flats or HMO does not automatically require a commercial investment mortgage.
Specialist residential products may remain available, depending on the property and letting structure.
What About Mixed-Use Property?
A building containing both commercial and residential space may require a semi-commercial mortgage.
Examples include:
- a shop with a flat above;
- an office with residential accommodation;
- a public house with an owner’s flat;
- a retail unit beneath several flats.
The lender may assess each part of the building separately.
It may consider the residential and commercial rental income, access arrangements and property title.
A mixed-use valuation also requires suitable expertise.
What Costs Should Investors Consider?
The interest rate is only one part of the total borrowing cost.
Possible costs include:
- lender arrangement fees;
- mortgage broker fees;
- commercial valuation fees;
- legal fees;
- search and registration costs;
- property surveys;
- insurance;
- taxation;
- early repayment charges;
- accountancy and professional advice.
Commercial valuations can cost more than standard residential valuations.
The valuer may need to assess the lease, rental evidence and investment value.
Applicants should request a clear cost illustration before committing to the application.
What are the Main Risks?
Commercial property income is not guaranteed.
A tenant may leave, fail or negotiate different lease terms. The property may then remain vacant.
During a void period, the owner may still need to pay:
- mortgage payments;
- insurance;
- security costs;
- maintenance expenses;
- utilities;
- professional fees;
- business rates where applicable.
Some commercial premises are also difficult to adapt for another use.
The lender will therefore consider how easily the property could be relet or sold.
A property’s true strength is not determined by rent alone. It also depends on the durability of that rent.
When Might Bridging Finance be Considered?
A commercial mortgage may not suit every purchase timescale or property condition.
Bridging finance may be considered when:
- the purchase must complete quickly;
- the property is not immediately mortgageable;
- refurbishment is required;
- a lease must be established;
- the investor plans to refinance later.
Bridging is short-term finance and can be more expensive than a commercial mortgage.
A clear repayment strategy is required. This is commonly called the exit route.
The exit may involve refinancing, selling the property or using another confirmed source of funds.
How Can Investors Prepare Before Applying?
Before approaching a lender, investors should establish:
- The purchase price and required loan.
- The amount and source of the deposit.
- The property’s current and proposed use.
- The expected annual rental income.
- The identity and financial strength of the tenant.
- The remaining lease term and break clauses.
- The property’s condition and required works.
- The expected mortgage, valuation and legal costs.
- A plan for vacancies or higher interest costs.
- The intended ownership structure.
Landlords with several mortgaged properties may also require a wider buy-to-let portfolio review.
The correct borrowing decision begins before a product is selected.
It begins by understanding what the property is, who will occupy it and how the debt will be repaid.
Should You Use a Commercial Mortgage Broker?
Commercial mortgages are often priced and assessed individually.
A broker can help present the transaction to lenders whose criteria may fit the property and borrower.
This may include reviewing:
- property type;
- lease details;
- rental coverage;
- ownership structure;
- applicant experience;
- available deposit;
- required mortgage term;
- refinancing plans.
Applicants can also compare broader mortgage categories through the Connect Lifetime Mortgage Guide.
Mortgage and property decisions should reflect the applicant’s circumstances. Commercial property also requires suitable legal, tax and valuation advice.
Speak to a Commercial Mortgage Adviser
Commercial property finance depends on more than the purchase price.
The property, lease, tenant and borrower must form one coherent lending case.
Connect Mortgages can review commercial investment purchases and refinancing requirements across a broad range of lenders.
Contact Connect Mortgages to discuss the property, deposit, rental income and proposed ownership structure.
Frequently asked questions
What is commercial buy-to-let?
Commercial buy-to-let involves owning commercial premises and renting them to a business tenant.
The finance is commonly structured as a commercial investment mortgage.
Can I get a commercial buy-to-let mortgage without experience?
Some lenders may consider first-time commercial property investors.
However, criteria may be stricter where the property, tenant or proposed arrangement is complex.
Are commercial buy-to-let mortgages regulated?
Some commercial and business buy-to-let mortgages are not regulated by the Financial Conduct Authority.
The regulatory position depends on the borrower, property and intended use.
Can I obtain an interest-only commercial mortgage?
Interest-only options may be available, depending on the lender and transaction.
The lender will still assess rental income, security and the proposed repayment strategy.
How long can a commercial mortgage last?
Commercial mortgage terms vary by lender.
The available term may depend on the property, borrower, lease and repayment basis.
Can I mortgage an empty commercial property?
It may be possible, but the lender will examine the proposed use and repayment plan carefully.
A lender may require evidence of expected rent, refurbishment plans or sufficient alternative income.
Is an HMO a commercial buy-to-let property?
An HMO is residential property, although specialist or commercial-style underwriting may apply.
The correct mortgage depends on its size, licensing, tenancy structure and lender criteria.
Your property may be repossessed if you do not keep up repayments on a mortgage or other loan secured against it.
The FCA does not regulate some forms of business buy-to-let and commercial mortgages to limited companies.
