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A kitchen extension in London costs roughly £80,000 to £150,000 all-in in 2026 for a typical 20 to 30 m² rear extension, at about £2,800 to £5,500 per m², including the build, the new kitchen, glazing, fees and 20% VAT. The kitchen itself usually accounts…
Read MoreA side return extension in London costs roughly £70,000 to £120,000 all-in in 2026, at about £2,800 to £5,500 per m², including the build, a new kitchen-diner, glazing, professional fees and 20% VAT. A small basic side return starts from around £55,000; a large, high-specification…
Read MoreDiscover utility room design ideas for modern homes, from laundry storage and layout planning to clutter-free family living.
Read MoreExplore internal courtyard design ideas that bring natural light, fresh air and a greater sense of space to modern UK home extensions.
Read MoreA realistic builder’s quote is fixed (not an estimate), itemised, and states clearly what is included. For a single-storey London extension in 2026, expect construction of about £2,800 to £5,000+ per m², with professional fees adding 10 to 15%, a 10 to 20% contingency, and…
Read MoreThis is a question we are frequently asked by prospective clients, and our answer is always the same; the cost is dependent on the size and the design of the scheme. The final cost of each side return extension will differ as the designs are tailored to suit the needs and requirements of each client. This makes it very difficult to give a generic guide price.
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