What counts as a mixed-use property?
A mixed-use property is any building with both a commercial and a residential part. The classic example is a flat above a shop, but it also covers an office building with a residential unit, a pub with living accommodation over it, or a converted building holding a mix of commercial and residential tenants.
How a lender classifies the property comes down to the split between commercial and residential space. Where the residential part is the larger share, some lenders treat it as a residential mortgage that happens to have commercial elements. Where the commercial part dominates, it sits under commercial lending.
That classification matters because it shapes your interest rate, the deposit you need, the regulatory protections you get, and which lenders you can even approach. Getting it right at the outset saves time and keeps you from applying to the wrong sort of lender.
How are mixed-use mortgages assessed?
A lender assesses the commercial and residential parts both on their own and as a whole. It looks at the rent each part earns, the general condition of the building, the lease terms for any commercial tenants, and how much demand there is locally for both kinds of space.
Deposits on mixed-use property usually land between residential and fully commercial levels, roughly 20–35%. The exact figure depends on the lender, the split between commercial and residential space, and how strong the income is.
Benefits of mixed-use property investment
A mixed-use property can spread your income across different tenant types, which lowers the chance of the whole building sitting empty at once. If a commercial tenant leaves, the residential rent keeps coming in, and the same works the other way round. That spread can make the investment steadier overall.
They also let you live above your own business, so your home and your workspace come in one purchase under a single mortgage. That can work out cheaper than running separate residential and commercial properties, though in some cases a dedicated buy-to-let mortgage suits the residential part better.
Stamp duty on a mixed-use property is often worked out at commercial rates, which can come in below residential rates on a higher-value purchase. Plenty of buyers do not realise this, and it can save thousands of pounds. Our stamp duty guide explains how the bands work.