Remortgage Property Used for Business

What Counts as Business Use?

Lenders draw a clear distinction between a property used primarily as a home with some incidental business activity, and a property that has a genuine commercial element. Understanding where your situation falls on this spectrum is the first step towards a successful remortgage.

Activities that are generally treated as standard residential use include:

• Working from home as an employee or freelancer, using a room as a study or office
• Running a small online business from a home office with no client visits or stock storage
• Occasional use of a room for business meetings

Activities that are likely to be classified as business or mixed use include:

• Operating a shop, salon, clinic, or similar commercial venture from the property
• Running a bed and breakfast or guesthouse
• Using part of the property as a workshop, studio, or manufacturing space open to customers
• Having a separate commercial unit attached to or forming part of the property
• Storing significant quantities of commercial stock
• Running a childminding or nursery business from the premises

The critical factor is often whether the property, or part of it, is registered for business rates. If you pay business rates on any part of the property, lenders will almost certainly classify it as mixed use. Even without business rates, certain activities may trigger a mixed-use classification depending on the lender's individual criteria.

It is important to be honest about the use of your property when applying to remortgage. Misrepresenting the nature of the property's use could constitute mortgage fraud and could result in the lender calling in the loan.

Types of Mixed-Use Properties

Mixed-use properties come in many forms, and lenders assess each type slightly differently. Here are the most common arrangements and how they are typically viewed.

Flat Above a Shop

This is one of the most common mixed-use property types in the UK. If you own both the commercial unit and the residential flat above, you will usually need a specialist lender or a commercial mortgage with a residential element. Some residential lenders will consider these properties if the residential portion makes up a certain percentage of the overall floor area, often at least 40 to 50 percent.

Bed and Breakfast or Guesthouse

Properties used as a B&B occupy a unique position. If you rent out one or two rooms occasionally, some residential lenders may still consider the property. However, a dedicated B&B business with multiple guest rooms, commercial kitchens, and online booking systems will typically require a commercial or semi-commercial mortgage.

Home-Based Professional Practice

Dentists, doctors, accountants, solicitors, and other professionals who run a practice from part of their home will usually need to explore mixed-use mortgage options. The proportion of the property used for the practice and the level of footfall are key considerations.

Workshop or Studio

If part of your property is used as a workshop, studio, or similar workspace that involves client visits, deliveries, or manufacturing, lenders will likely classify it as mixed use. A detached workshop in the garden may be treated differently from a converted room within the main dwelling.

Childminding or Nursery

Registered childminders often operate from home, and some lenders have specific policies on this. A small childminding operation registered with Ofsted may be acceptable to certain residential lenders, while a larger nursery business will require commercial lending.

Lender Criteria for Business-Use Properties

When assessing a remortgage application for a property used for business, lenders consider a range of factors beyond the standard residential criteria. Understanding these can help you prepare a stronger application.

Proportion of commercial use

Most lenders who accept mixed-use properties set a limit on the proportion of the property that can be used commercially. A common threshold is that no more than 40 to 50 percent of the total floor area should be given over to business use. If the commercial element exceeds this, you may need a fully commercial mortgage.

Nature of the business

Lenders will want to understand the type of business operated from the property. Low-impact businesses such as office-based consultancy are viewed more favourably than businesses involving heavy footfall, hazardous materials, or significant alterations to the property.

Planning permission and change of use

If the property has undergone a change of use, lenders will want to see that the appropriate planning permission has been obtained. Operating a business without the correct planning consent is not only a legal issue but is also a red flag for lenders.

Business rates and council tax

The rating of the property provides lenders with a clear indication of its use. A property that is partly rated for business rates and partly for council tax is unmistakably mixed use. Some lenders require the residential portion to have its own council tax banding.

Separate access

Properties where the commercial and residential areas have separate entrances may be viewed more favourably by some lenders, as this clearer separation can make the property easier to value and potentially easier to sell.

FCA regulation

Residential mortgages are regulated by the Financial Conduct Authority, which provides certain consumer protections. If a property is deemed primarily commercial, the mortgage may fall outside FCA regulation, which can affect the terms and protections available to you. This is an important distinction to be aware of.

Finding the Right Mortgage Product

Remortgaging a property used for business requires careful product selection. The right mortgage will depend on the nature and extent of the business use, the proportion of the property involved, and your overall financial circumstances.

Residential mortgages with business use acceptance

A small number of residential lenders will accept properties where a minor proportion is used for business. These are typically the most competitive in terms of rates and are regulated by the FCA. However, they tend to have strict criteria regarding the extent of commercial use and the type of business involved.

Semi-commercial mortgages

Semi-commercial or mixed-use mortgages are designed specifically for properties that combine residential and commercial use. These products are offered by specialist lenders and typically come with higher interest rates than standard residential mortgages. They may or may not be FCA regulated depending on the property's classification.

Commercial mortgages

If the commercial element of your property is dominant, you may need a commercial mortgage. These are not regulated by the FCA and typically have higher rates, larger deposit requirements, and shorter terms than residential products. They are assessed primarily on the viability of the business and the commercial value of the property.

The choice between these products can have significant implications for your monthly payments, the protections available to you, and your long-term financial flexibility. This is an area where professional advice from a specialist broker is particularly valuable.

It is also worth noting that some lenders offer products that allow you to split the mortgage, with one rate for the residential element and another for the commercial portion. These can be complex to arrange but may offer good value in certain circumstances.

How to Improve Your Chances of Approval

Remortgaging a business-use property requires thorough preparation. Here are practical steps you can take to strengthen your application.

Get your paperwork in order. Gather all documentation relating to the business use of your property, including planning permissions, change of use applications, business rates bills, and any relevant licences. If you have had building work done to accommodate the business, have the building regulations certificates ready.

Prepare your business accounts. Lenders will want to see evidence of business income and viability. Have at least two to three years of accounts or tax returns available. If the business is relatively new, be prepared for lenders to take a more cautious view.

Maintain a clear separation. Where possible, maintain a clear distinction between the residential and commercial parts of the property. Separate entrances, separate utility meters, and clear physical boundaries between the two areas can all help your application.

Check your planning position. Ensure that your business use has the correct planning consent. If you have been operating without formal permission, consider applying for retrospective consent before you remortgage. Operating without proper planning permission is a significant concern for lenders.

Review your insurance. Make sure you have appropriate insurance that covers both the residential and commercial elements of the property. Standard home insurance is unlikely to be sufficient, and lenders will require evidence of adequate cover.

Speak to a specialist broker. A broker who specialises in mixed-use or commercial properties will have access to lenders that you may not find on your own. They can assess your situation, identify the most suitable products, and present your application in the most favourable way. This can make a genuine difference to the outcome.

The Role of a Specialist Broker

Remortgaging a property used for business is one of the areas where a specialist mortgage broker can be most valuable. The market for mixed-use and semi-commercial mortgages is less transparent than the residential market, and many of the best deals are only available through intermediaries.

A specialist broker brings several advantages:

• Market knowledge -- They understand which lenders accept different types of business use and can quickly narrow down your options to the most suitable providers.
• Application presentation -- They know how to present a mixed-use application in a way that highlights the strengths and addresses potential concerns. This can be the difference between approval and decline.
• Product range -- Many semi-commercial and commercial lenders only work through brokers, so using one gives you access to products you would not otherwise see.
• Regulatory guidance -- They can explain the implications of FCA-regulated versus non-regulated mortgages and help you understand the protections available to you.
• Ongoing support -- Mixed-use mortgages can involve more complex legal processes and documentation requirements. A good broker will support you through the entire process, liaising with the lender, solicitor, and any other parties as needed.

If you have previously been declined for a remortgage due to the business use of your property, a specialist broker is particularly worth consulting. They can analyse why the application was declined and identify alternative lenders who may view your situation differently.

When choosing a broker, look for one with specific experience in mixed-use or commercial properties. Ask about the range of lenders they work with and whether they charge a fee for their services. Many brokers offer an initial consultation free of charge.