Completed extensions, with the real numbers.
What each one cost, how long it sat on site, and how much floor area it actually added — the same detail we'd give you for yours.
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Great Tew, Oxfordshire 2026
The Glass Box
A steel-framed rear extension replacing a 1970s conservatory, with a 4m frameless roof lantern and a bespoke island kitchen. The existing house is Grade II listed, so the entire design was developed alongside the conservation officer before a single foundation was dug.
£312,000Investment21 weeksOn site48m²Added -
Burford, Oxfordshire 2026
The Orangery
A traditional lantern-roofed orangery on a period farmhouse, matched in stone and proportion to the original 18th-century elevation. Full planning permission, granted on the second submission after we revised the roofline height.
£298,000Investment23 weeksOn site44m²Added -
Chipping Norton, Oxfordshire 2025
The Wrap-Around
Side-return and rear combined into one kitchen, dining and living space — the entire ground floor rebuilt around it, including relocating the staircase to open the whole plan.
£401,000Investment27 weeksOn site61m²Added