Commercial Mortgage Guide | An Insider’s Look at Commercial Mortgages

Are you considering a commercial mortgage to buy, refinance, or expand a business or property investment portfolio?

Whether you are purchasing an office, retail unit, industrial space, or mixed-use premises, commercial lending requires careful planning and strong documentation.

Unlike residential loans, commercial mortgages involve stricter affordability checks, larger deposit requirements, and more complex terms based on property type and business income.

This guide offers practical insight into the UK commercial mortgage process to help you prepare, reduce delays, and improve approval chances.

Commercial Mortgage Guide

What Is a Commercial Mortgage?

A commercial mortgage is a loan secured against commercial property (i.e., not your home). It allows businesses to buy, refinance, or develop property for business use.

Examples of eligible properties include:

  • Offices

  • Warehouses

  • Retail units

  • Industrial premises

  • Care homes

  • Buy-to-let portfolios (under commercial terms)

Why Consider a Commercial Mortgage?

BenefitsWhy It Matters
Long-Term StabilityFixed or variable rates over longer periods offer financial predictability
Equity GrowthProperty ownership can increase your business’s net worth
Rental IncomeOwn and let out part or all of the property
Refinancing OptionsImprove cash flow, consolidate debts or release equity
Tailored TermsCommercial mortgages can be structured to suit your business cash flow

Who Are Commercial Mortgages For?

Borrower TypeUse Case
Trading businessesPurchasing or refinancing premises for own use
Property investorsAcquiring or refinancing rental portfolios
DevelopersFunding new builds or major refurbishments
SMEs & StartupsSecuring a first business premises (subject to criteria)
Types of Commercial Mortgages
Mortgage TypeDetailsBest For
Owner-OccupiedBusiness occupies the propertyTrading companies
Commercial InvestmentProperty let to tenantsLandlords or investors
Semi-CommercialMixed-use (e.g., shop + flat)Landlords with diverse portfolios
Bridging FinanceShort-term funding solutionDevelopers, auction buyers
Development FinanceFunding for ground-up builds or conversionsProperty developers
Key Eligibility Criteria
FactorWhat Lenders Look For
Credit HistoryClean credit, or explanations for past issues
Business FinancialsProfit & loss, balance sheet, forecasts
ExperienceParticularly for investors & developers
Deposit/EquityTypically 25-40% deposit required
ValuationProfessional property valuation required
Tenancy Details (for investment)Lease length, tenant profile, rental yield
Costs Involved in a Commercial Mortgage
Cost TypeTypical RangeNotes
Interest Rates2.5% to 8%+Based on risk, term, lender
Arrangement Fees1% to 2% of loanMay be added to the loan
Valuation Fees£500 to £5,000+Based on property value
Legal Fees£1,000 to £3,000+Both parties pay their own
Broker Fees0.5% to 1%Often worth the expertise
Early Repayment ChargesVariesCheck terms closely
How Long Does It Take?
StepTypical Timeframe
Initial consultation & DIP1–5 working days
Property valuation1–2 weeks
Legal due diligence2–6 weeks
Completion6–12 weeks total (typical)

Tip: Using a specialist broker can speed things up and prevent costly delays.

Mythbusters: Common Misconceptions About Commercial Mortgages
MythReality
“You need perfect credit.”Not true. Specialist lenders often consider applications with minor issues.
“They’re only for big businesses.”Many SMEs and even startups secure commercial mortgages.
“Rates are always sky-high.”Rates vary widely. Strong businesses may secure competitive rates.
“It’s quicker to rent.”In the long term, ownership often brings more control and value.
“All commercial mortgages are the same.”There’s a wide variety tailored to different borrower needs.

What Documents Will You Need?

To prepare for an application, ensure you have:

  • Last 2-3 years’ accounts (or forecasts if new business)

  • Bank statements (business & personal, usually 3-6 months)

  • Business plan (especially for startups)

  • Details of the property

  • Tenancy agreements (for investment properties)

  • Proof of identity & address

Real-Life Example: Growth Through Ownership

Company: Small marketing agency in Manchester
Goal: Buy their own office instead of renting
Solution: £300,000 commercial mortgage at 70% LTV
Result: Saved £1,200/month compared to rent, gained asset ownership, and unlocked future equity

“Buying our office wasn’t just a property decision — it was a growth strategy.”
– Managing Director, Local Marketing Co.

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FAQ: Commercial Mortgage Guide

QuestionAnswer
1. What is a commercial mortgage?A commercial mortgage is a loan secured on a property used for business purposes. It allows companies or investors to buy offices, retail units, warehouses, or mixed-use buildings.
2. Who can apply for a commercial mortgage?Commercial mortgages are available to limited companies, partnerships, sole traders, and investors purchasing or refinancing business premises.
3. How much deposit do I need?Most lenders require a deposit of 25% to 40% depending on the property type, business performance, and credit profile.
4. What types of commercial mortgages are available?There are two main types: Owner-Occupied (for businesses buying their own premises) and Commercial Investment (for investors buying property to let to tenants).
5. How is a commercial mortgage different from a buy-to-let mortgage?A commercial mortgage is secured against business premises and assessed on trading performance, while a buy-to-let mortgage is for residential properties rented to individuals.
6. What interest rates apply to commercial mortgages?Rates vary depending on the lender, loan size, deposit, and risk profile. Typically, commercial rates are higher than residential mortgages due to increased risk.
7. Can I get a commercial mortgage through a limited company?Yes. Many investors use a limited company structure to buy commercial or semi-commercial properties for tax efficiency and portfolio management.
8. What documents are required for an application?Lenders usually request business accounts for two to three years, bank statements, proof of ID, property details, and a business plan or forecast.
9. How long does the process take?The average commercial mortgage application takes between six and twelve weeks, depending on the complexity of the deal and how quickly documents are provided.
10. Can I get 100% financing?It’s rare, but possible if additional security such as another property or director guarantees are provided. Most lenders require a minimum deposit.
11. Are there arrangement fees?Yes. Expect lender arrangement fees of around 1% to 2% of the loan amount plus valuation and legal fees. Your adviser will provide a breakdown before the application.
12. What if my business has limited trading history?Some specialist lenders offer commercial mortgages to new businesses or start-ups if there is a strong business plan and additional security.
13. Can foreign investors apply for a UK commercial mortgage?Some lenders will consider non-UK residents or overseas companies, but lending criteria are stricter and may require a higher deposit.
14. What happens at the end of the term?You can refinance, switch lenders, or repay the remaining balance. Many borrowers review their deal every few years to ensure they remain on competitive terms.
15. Why use a mortgage adviser for commercial property?A specialist commercial mortgage adviser can access lenders and deals not available directly to the public, helping you secure better terms and structure your finance efficiently.