Flat above shop mortgages

A flat above shop mortgage is a loan secured on a flat that sits over a shop, café, takeaway or other commercial unit. It can fund the flat alone, on a long lease or its own title, or the whole building, where the shop and flat are bought together as one semi-commercial property.

The two routes are assessed differently. A flat bought on its own is residential security, so a residential or buy-to-let lender may accept it. A whole building with a shop below is mixed-use security, and most lenders treat it as semi-commercial lending, with the shop's lease and the flat's tenancy both looked at.

Buying the shop and the flat together is the most common way to own a flat above a shop as an investment. The loan is usually a semi-commercial mortgage, assessed on the rent from both parts, the strength of the shop's lease and the value of the whole building rather than each part on its own.

Some buyers run their own business from the shop and live in the flat. Where the borrower or a close family member lives in the flat, and the flat makes up enough of the building, the loan can be a regulated mortgage under FCA rules, which brings different checks and protections (FCA Handbook PERG 4.4, accessed 20 Oct 2026).

Where the shop is let, the lender reads the lease for its length, rent, repairing terms and any break clause. A shop that is empty, or let on a short or informal basis, usually reduces the loan or narrows the choice of lenders. How lenders treat mixed buildings in general is set out in the guide to what a semi-commercial mortgage is.

Buying the flat on its own, without the shop, is possible with many residential and buy-to-let lenders, but not all. Lenders check what the shop is used for, because a takeaway, pub, launderette or business with late opening can bring noise, smells and fire risk, which affect demand for the flat and its resale value.

Lenders also check access to the flat, often a separate street door or a rear staircase, and the lease terms where the flat is leasehold. A short lease, a high ground rent or service charge, or shared access through the shop can lead a lender to decline or lend less.

Some lenders set limits on the type of commercial use below, and some decline flats over certain uses altogether. A broker who arranges these cases can say which lenders accept a particular building.

Flats above shops are often valued below similar flats in purely residential buildings, because the shop below can limit the number of buyers and lenders. The valuer looks at the type of business, opening hours, the condition of the building, access, and recent sales of similar flats over commercial units in the area.

For a whole building, the valuer values the shop on its rent and lease and the flat on comparable residential evidence, then gives a value for the building as a whole. The lender lends against that figure, not the asking price, so a gap between the two has to be met from the deposit.

Rates for these loans depend on the route, the loan-to-value and the lender, and are covered on the semi-commercial mortgage rates page.

Comparing options for a flat above a shop starts with the route: the flat alone through a residential or buy-to-let lender, or the whole building through a semi-commercial lender. Each route has its own deposit, rate, fees and conditions, and the choice of lenders differs a great deal between the two.

The costs differ too. A whole-building loan usually carries a commercial valuation and legal work on the shop lease, while a flat-only loan follows residential fees. Owner-occupiers who will live in the flat may find the regulated route gives more protection, while investors usually look at the total rent from both parts against the cost of the loan. Lenders that finance mixed buildings are compared on the semi-commercial mortgage lenders page.