Our instant quote tool provides an early stage budget estimate for construction projects across London, including renovations, extensions, loft conversions, basements and new builds.

Enter your project details below to generate a live budget range based on typical London construction costs.

Please note that construction costs vary depending on design, structure, site access and specification. This tool is intended for early budgeting guidance only and does not replace a detailed quotation.

For most construction projects, we recommend allowing a 10 to 15 percent contingency.

If you would like to discuss your results, learn more about our services or arrange a project review, please contact our team.