How Commercial Mortgages Work
A practical guide to commercial mortgage finance — what a commercial mortgage is, who uses one, how lenders assess applications, deposit requirements, rates and what to expect during the process.
What Is a Commercial Mortgage?
A commercial mortgage is a long-term loan secured against commercial property — such as offices, retail shops, industrial units, warehouses, mixed-use premises or other non-residential buildings. The property acts as security for the loan, and the borrower makes monthly repayments of interest and capital (or interest only, depending on the structure) over the agreed mortgage term.
Commercial mortgages are used for two broad purposes: purchasing premises for a business to trade from (owner-occupied), or purchasing commercial property as an investment to let to business tenants (commercial investment). The assessment approach, deposit requirements and lender criteria differ significantly between the two.
Who Uses Commercial Mortgages?
Commercial mortgages are used by a wide range of businesses, investors and organisations including:
- ✓ Businesses purchasing the premises they trade from — shops, offices, workshops, surgeries
- ✓ Property investors purchasing commercial property to let
- ✓ Landlords expanding into commercial investment property
- ✓ Limited companies and SPVs acquiring commercial assets
- ✓ Professional practices — solicitors, accountants, dental and medical practices
- ✓ Hospitality businesses — restaurants, pubs and hotels
- ✓ Manufacturing, industrial and logistics businesses
Owner-Occupied vs Commercial Investment Mortgages
The distinction between owner-occupied and commercial investment is fundamental to how lenders assess commercial mortgage applications.
Owner-Occupied
Where a business purchases the premises it trades from, the lender's primary concern is whether the business can service the mortgage from its trading income. Lenders review business accounts, profitability, cash flow and the directors' personal financial positions. The deposit required is typically 25% to 40% of the purchase price.
Commercial Investment
Where an investor purchases commercial property to let to business tenants, the lender focuses on the rental income, the quality of the tenant (covenant strength) and the terms of the lease. An interest coverage ratio (ICR) test is applied — checking that rent covers the mortgage interest by a sufficient margin. Deposits typically range from 25% to 40%.
For a detailed comparison, see our guide: Owner-Occupied vs Commercial Investment Mortgages.
Deposit Requirements
Commercial mortgage deposits are typically higher than residential mortgage deposits. Most commercial lenders require between 25% and 40% of the property's purchase price or valuation as a deposit. The exact amount depends on:
- ✓ Whether the property is owner-occupied or investment
- ✓ The type of commercial property and its marketability
- ✓ The strength of the borrowing business or the tenant covenant
- ✓ The lender's own appetite and criteria
- ✓ The borrower's overall financial profile and credit history
See our guide: Commercial Mortgage Deposit Requirements.
Rates and Terms
Commercial mortgage rates are generally higher than residential mortgage rates, reflecting the additional risk and complexity of commercial transactions. Rates can be fixed or variable (tracker), with fixed-rate periods typically ranging from two to ten years.
Loan terms for commercial mortgages typically range from five to twenty-five years, though this varies by lender and the nature of the transaction. Shorter terms may be offered on more unusual properties or higher-risk transactions.
Commercial mortgage rates are not publicly listed in the same way as residential rates — they are typically agreed on a case-by-case basis, reflecting the specific property, borrower and transaction.
How Lenders Assess Commercial Mortgage Applications
For Owner-Occupied Applications
- ✓ Business accounts — typically two to three years of filed financials
- ✓ Business profitability and ability to service the debt
- ✓ Director and personal financial position and credit history
- ✓ Property type, condition, location and valuation
- ✓ Deposit and loan-to-value
For Investment Applications
- ✓ Rental income and interest coverage ratio (ICR)
- ✓ Tenant covenant strength and financial stability
- ✓ Remaining lease term and lease structure
- ✓ Property type, condition, location and yield
- ✓ Borrower's overall financial profile and investment experience
The Commercial Mortgage Valuation
All commercial mortgage applications require a formal property valuation by a qualified commercial valuer (typically a RICS-registered firm). The valuation determines the maximum loan the lender will offer and verifies that the property represents adequate security.
Commercial valuations consider the property type, location, condition, current and potential rental income, comparables and the marketability of the asset. Mixed-use and specialist properties may require more complex valuations. The valuation cost is typically paid by the borrower.
Legal Process
Commercial mortgage transactions require separate legal representation for the borrower and the lender. A specialist commercial property solicitor will handle the legal due diligence on the property title, any existing leases, planning permissions and searches.
The legal process for commercial transactions is generally more complex than residential, reflecting the variety of commercial property types and lease structures involved. Legal fees are typically higher than for residential transactions.
Timescales
Commercial mortgage transactions are generally slower than residential purchases. A straightforward commercial mortgage application may take between six and fourteen weeks from application to completion. More complex transactions, specialist properties or multi-tenanted buildings can take considerably longer.
Where speed is a priority — such as auction purchases or time-sensitive transactions — a bridging loan may be the more appropriate initial route, with a commercial mortgage arranged later as a longer-term refinancing solution. See our guide: Commercial Mortgage vs Bridging Loan.
Who Provides Commercial Mortgages?
Commercial mortgages are available from a range of lenders including high street banks, specialist commercial banks, challenger banks, building societies and specialist lenders. The range of lenders available for any given application depends on the property type, the borrower's profile and the specific transaction.
Not all mainstream mortgage lenders offer commercial products. Many specialist or complex situations require access to more niche commercial lenders with appetite for specific property types or borrower profiles.
How NexGen Finance Can Help
NexGen Finance can help review commercial mortgage enquiries, explain possible finance routes and connect clients with appropriate lenders or specialist brokers. We do not provide commercial mortgage advice directly. Where regulated advice is required, enquiries are referred to authorised authorised commercial finance broker partners.
NexGen Finance is not a lender and does not provide regulated financial advice. Suitable enquiries may be referred to commercial finance broker partners. Funding is subject to status, affordability, lender criteria and approval. Where regulated mortgage or protection advice is required, this is handled by authorised authorised commercial finance broker partners or brokers. Funding is subject to status, affordability, lender criteria and approval. Commercial finance enquiries may be referred to appropriate brokers, lenders or advisers depending on the type of enquiry and the client's circumstances.
Frequently Asked Questions
What is a commercial mortgage?
A commercial mortgage is a loan secured against commercial property — offices, shops, industrial units or mixed-use premises. Assessment is based on trading performance (owner-occupied) or rental income (investment) rather than personal income.
How long does a commercial mortgage take to arrange?
Typically six to fourteen weeks from application, depending on complexity, lender and how quickly valuations and legal work progress. Complex or specialist transactions can take longer.
What deposit do I need?
Deposits typically range from 25% to 40% of the purchase price or valuation, depending on the lender, property type and borrower profile.
What property types can be financed?
Offices, retail shops, industrial units, warehouses, trade premises, mixed-use and semi-commercial properties can all be financed with commercial mortgages, subject to lender appetite.
Are commercial mortgage rates fixed or variable?
Both fixed and variable rate options exist. Fixed rates provide payment certainty; variable rates may change with market conditions. Rates are generally higher than residential mortgage rates and agreed case by case.
Who provides commercial mortgages in the UK?
High street banks, specialist commercial banks, challenger banks and specialist lenders all provide commercial mortgages. Not all mainstream lenders offer commercial products — specialist situations may require niche lenders.
A Practical, Compliance-Led Approach
NexGen Finance keeps commercial and property finance enquiries straightforward. We focus on clear communication, practical funding routes and transparent wording, without overpromising outcomes.
Ready to Discuss a Commercial Mortgage?
Contact NexGen Finance to review your requirements and explore possible commercial mortgage routes for your situation.