The overall cost of a home extension can vary depending on several key factors, including the location, size, design, level of finish, and the layout of your existing property. As a general guideline, homeowners in London can expect to invest between £2,000 and £2,500 per square metre for a high-quality house extension. For most projects, this typically results in a total cost ranging from £45,000 to £75,000, depending on the complexity and scope of the work.
The price of your extension will largely depend on how much additional space you plan to create—since most builds are calculated on a cost per square metre basis, a 30m² extension will naturally be more expensive than a smaller 18m² one. Other important factors that can influence the final cost include whether you want an open-plan layout, the extent of structural alterations required to your existing home, the intended use of the new space, and the type, quantity, and specification of glazing or finishing materials you choose.
At Albion Solutions LTD, we provide clear, detailed quotations tailored to your project, ensuring transparency and value at every stage of the building process.
