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Kitchen Extension Cost in Bristol: 2026 Price Guide

30 Jul 2026

Bristol is built across steep hills either side of the Avon Gorge, and that terrain shows up directly in extension costs in a way flatter cities don't experience. A rear extension on a level plot in Bishopston or Horfield is a fairly standard job; the same extension on a sloping garden in Totterdown or parts of Clifton often needs retaining structures and additional groundwork just to create a usable, level space.

Extension sizeTypical cost
Small (up to 15m²)£20,000-£35,000
Medium (15-25m²)£35,000-£56,000
Large (25m²+)£56,000 upwards

Clifton's Georgian terraces are a different conversation entirely

Clifton's grand Georgian terraces, built up around the same era as the Clifton Suspension Bridge, sit within one of Bristol's largest and most tightly controlled conservation areas. Extending here typically means matching original stone or render detailing and respecting a roofline that's been protected for decades - a different brief from the Victorian terraces of Bedminster or Southville on the other side of the harbour, where extensions follow more standard permitted development rules.

What actually drives cost in Bristol

Beyond the slope itself, access on the narrower Victorian streets of Montpelier, St Werburghs and Easton is the other recurring factor - many of these streets are too tight for a skip without a council permit, which a builder unfamiliar with the area can miss in an initial quote.

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