Commercial property finance: buy the building without starving the business

Buying business premises can replace rent with a long-term property commitment, but the purchase price is only one part of the cash requirement. The business also needs enough working capital for deposit, tax, fees, repairs, fit-out and the months after completion.

Decide whether the business is buying premises to occupy or to let

The British Business Bank distinguishes owner-occupied commercial mortgages from commercial buy-to-let mortgages. The underwriting logic differs because an owner-occupied property is supported by the operating business, while a commercial investment property also depends on rental income, tenant quality and lease terms.

Be clear about the commercial reason for buying. Owning a factory may protect the company from lease renewal risk and allow specialist fit-out. Buying an office purely because management dislikes paying rent is a weaker argument if remote working or headcount could change the space requirement within three years.

Understand deposit, term, interest and lender evidence

The British Business Bank says commercial mortgages involve an upfront deposit followed by monthly repayments and can use fixed or variable interest rates. Terms can range from one to 30 years. Lenders commonly examine trading history and may ask for several years of accounts plus projected trading figures.

Ask for the loan-to-value requirement, amortisation period, interest basis, arrangement fee, valuation fee, legal costs and any security or guarantees. A business buying a £1 million property with a £300,000 deposit still needs to understand how the remaining £700,000 debt behaves if interest rates rise or profits fall.

Model taxes, professional fees, fit-out and property operating costs together

The British Business Bank highlights property taxes such as Stamp Duty Land Tax in England and Northern Ireland, Land Transaction Tax in Wales and Land and Buildings Transaction Tax in Scotland. The applicable rates depend on location and value and should be checked using current government guidance before exchange.

Add valuation, survey, legal work, lender fees, building insurance, fit-out, moving costs and any immediate repairs. Then include ongoing business rates, maintenance, utilities and compliance costs. A £750,000 purchase can require materially more cash than the deposit alone suggests, particularly where the building needs refurbishment before trading can begin.

Stress-test the mortgage after preserving a working-capital buffer

Do not use every available pound for the deposit. The business still needs cash for payroll, suppliers, tax and disruption during the move. Build the property payment into the same cash-flow forecast used for normal operations, then test a weaker trading year or higher variable interest rate.

Suppose the proposed mortgage payment is £9,000 per month and current rent is £6,000. The decision is not simply whether an extra £3,000 is affordable today. Add ownership costs and test what happens if gross profit falls 15 percent. Property ownership should not force the operating business into overdraft every time trading softens.

Use bridging finance only when the repayment route is specific and credible

The British Business Bank describes commercial bridging loans as short-term property finance that can be used until longer-term funding such as a mortgage is secured. It notes that bridging normally carries higher interest and generally runs for a much shorter period than a mortgage.

The exit should be more precise than "we will refinance later". Confirm whether the expected mortgage is genuinely available, what conditions must be met and what happens if valuation or completion is delayed. A short-term facility becomes dangerous when the business reaches maturity without the planned refinancing or sale.

Consider what happens if the property no longer fits the business

The British Business Bank highlights drawbacks including tied-up capital, maintenance responsibilities and the risk that the property becomes inappropriate as the business grows or shrinks. Ownership can improve long-term control but reduces flexibility compared with a lease.

Think about alternative use, subletting, resale demand and specialised fit-out. A standard warehouse may be easier to sell than a highly specialised site requiring expensive conversion. The property decision should work under more than one business scenario because selling commercial property is rarely as quick as cancelling a subscription or moving a bank account.

Also compare the property commitment with the likely growth path. A business expecting headcount to double may outgrow a small owner-occupied office quickly, while a manufacturer that has invested heavily in fixed plant may value long-term site control much more. The finance decision should reflect how costly it would be to move again, not only today's rent versus mortgage comparison.