There’s a specific moment every growing business hits: the current premises are too small, the lease is coming up for renewal, or a bigger opportunity has landed and there’s simply nowhere to put it. That’s usually the moment “commercial mortgage” goes from a term you’ve half-heard to something you actually need to understand fast.
The Real Question Business Owners Ask First
Not “what is a commercial mortgage” most owners already have a rough idea. The real question is: can my business actually get one, and how does it compare to just renting or taking a standard business loan? Let’s answer that properly.
How Do Commercial Mortgages Work?
A commercial mortgage is a loan secured against a non-residential property, used to purchase, develop, or refinance business premises repaid over an agreed term, similar in structure to a residential mortgage but assessed against business income and the property’s commercial value. Instead of a bank checking your personal payslips, they’re checking your business accounts, trading history, and the viability of the property itself.
Two broad categories exist:
- Owner-occupier commercial mortgage you’re buying the premises your own business will operate from (an office, shop, warehouse, or clinic, for example)
- Commercial investment mortgage you’re buying a property to lease out to other businesses as an income-generating asset
Why Businesses Use Commercial Finance to Expand
Renting keeps things flexible, but it also means paying into someone else’s asset indefinitely and being at the mercy of lease renewals and rent reviews. Commercial finance flips that:
- You build equity in a property instead of paying rent with nothing to show for it
- You control your own premises no landlord restrictions on renovations, branding, or how you use the space
- You can lease out unused space if the building is bigger than your current needs, creating a second income stream
- You free up working capital elsewhere, since a mortgage spreads the cost of premises over years rather than a single large purchase
For property investors, commercial finance works slightly differently it’s less about business expansion and more about building a property portfolio, using rental income from tenants to cover the mortgage and generate a return.
Who Can Apply for Commercial Finance?
This is the part that surprises a lot of first-time applicants commercial lending isn’t just for large, established corporations. Lenders regularly work with:
- Small and medium businesses looking to buy their first premises
- Startups with a solid business plan, even without years of trading history
- Property investors building or expanding a commercial portfolio
- Retailers buying shop units instead of renting
- Warehousing and logistics businesses needing larger industrial space
- Professional practices clinics, dental surgeries, veterinary practices buying premises to operate from
The common thread isn’t company size it’s whether the numbers make sense: can the business (or the rental income, for investment deals) realistically support the repayments?
What Deposit Is Required for a Commercial Mortgage?
Commercial mortgages typically require a larger deposit than residential ones. Most commercial mortgage lenders ask for somewhere between 25% and 40% of the property value, depending on:
- The type of property (offices and retail units are generally viewed more favourably than specialist premises)
- Whether it’s owner-occupied or an investment purchase
- The strength of your business accounts and trading history
- The loan to value (LTV) the lender is comfortable offering for that specific sector
A stronger trading history and healthier accounts can sometimes unlock a lower deposit requirement which is exactly the kind of detail a commercial finance broker will negotiate on your behalf rather than you accepting the first offer a single bank gives you.
Commercial Mortgage vs Business Loan Which One Actually Fits?
These get confused constantly, so here’s the distinction:
- Commercial mortgage long-term, secured against property, lower interest rates, used specifically for buying or refinancing premises
- Business loan shorter term, can be secured or unsecured, more flexible use (stock, equipment, working capital), but usually higher rates and smaller amounts
If the goal is genuinely about owning premises for the long haul, a commercial mortgage almost always works out cheaper than financing the same purchase through a general business loan.
Development and Refinance: The Two Options People Forget About
Commercial finance isn’t just for straightforward purchases:
- Property development finance funds the construction or major renovation of commercial premises useful if you’re converting a unit, extending, or building from scratch
- Commercial property refinance lets you release equity from a property you already own, freeing up capital for expansion, new stock, staff, or another property purchase entirely
Both of these get overlooked by business owners who assume commercial finance only means “buying a building,” when in reality it can also fund growth from an asset you already hold.
A Simple Way to Approach It
Before speaking to a lender, get clear on three things: how much deposit you can realistically put down, what the property will be used for (owner-occupied vs investment), and what your exit or repayment plan looks like over the mortgage term. A commercial mortgage broker who works across the whole market rather than just one bank’s product list can then match that picture to lenders who actually specialise in your sector, whether that’s retail, warehousing, or professional practices.
Frequently Asked Questions
How do commercial mortgages work? A commercial mortgage is a loan secured against a non-residential property, assessed against business income and the property’s value, and repaid over an agreed term similar in structure to a residential mortgage but with different lending criteria.
Who can apply for commercial finance? Small businesses, startups, property investors, retailers, and professional practices can all apply. Approval depends mainly on the strength of the business case and the property, not just company size.
What deposit is required for a commercial mortgage? Most lenders require a deposit of 25 40% of the property value, though this varies depending on the property type, trading history, and whether the purchase is owner-occupied or investment-based.
Is commercial finance only for buying new premises? No. It also covers property development finance for construction or renovation, and commercial property refinance for releasing equity from a property you already own.
What’s the difference between a commercial mortgage and a business loan? A commercial mortgage is long-term and secured against property with lower interest rates, while a business loan is typically shorter-term, more flexible, and carries higher rates.
Thinking about buying, developing, or refinancing business premises? A commercial finance broker can compare lenders across the whole market to find terms that actually fit your business plan.