How Much Does a Side Extension Cost?
How much does a side extension cost. A side extension is a practical way to utilize unused space on the side of your house, often occupied by sheds or bins, or left completely empty. It can transform this area into functional living space, such as a garage, study, home office, utility room, or downstairs toilet. A single-storey side extension is ideal for creating a larger kitchen without sacrificing garden space, while a double-storey extension can add bedrooms, enlarge the family bathroom, or create a master bedroom suite.
Factors Influencing the Cost of a Side Extension
The cost of your side extension will vary depending on how you plan to use the space. Rooms like utility areas, kitchens, and bathrooms typically cost more to construct due to plumbing and electrical requirements, while bedrooms or studies tend to be less expensive. Taking time to carefully plan the purpose of your extension is essential for budgeting and maximizing functionality.
Estimated Build Costs
Most builders charge between £2,000 and £2,500 per square metre for single-storey extensions. This price covers essentials like foundations and the roof. For double-storey extensions, the cost per square metre for the upper floor often reduces to around £1,500 to £2,000, as the foundations wont double in size, the cost of the roof will essentially move up another level.
For example:
- A semi-detached house with a 8m depth and 3m width side extension provides 24 square metres per floor.
- Ground floor: £48,000 to £60,000
- First floor: £36,000 to £48,000
Additional Considerations
- Structural Work: If your extension requires significant structural modifications, costs may increase.
- Planning Permissions: Always check with our team as some side extensions can be built under permitted development and others will need a householder planning application.
- Interior Fit-Outs: The cost of finishing your extension—flooring, lighting, or built-in furniture—should be factored into your budget.
Benefits of a Side Extension
A side extension doesn’t just add functional space to your home; it can also significantly increase your property’s value. Whether you’re expanding your kitchen, adding a home office, or creating a new bedroom, it’s an investment that enhances both your lifestyle and the market appeal of your property. If you are thinking about the benefits of the extensions its likely that any buyers will be thinking the same.
If you’re ready to transform your unused side space into something extraordinary, contact us today. Our team is here to help you plan and execute your dream side extension.
