Kitchen Extension Cost in Belfast: 2026 Price Guide

Belfast's Victorian and Edwardian terraces - built rapidly as the city grew into a major shipbuilding and linen manufacturing centre, home to the Harland & Wolff yard where the Titanic was built - remain the dominant housing type across areas like the Holyland, Sandy Row and much of south and east Belfast. Extending one of these terraces is a genuinely different job from a house in the more spacious streets of Malone or Stranmillis.

Northern Ireland has its own rules entirely

Planning in Northern Ireland is administered under the Planning Act (Northern Ireland) 2011, and building control works through Building Regulations (Northern Ireland) - both legally separate from the systems in England, Scotland and Wales. An extension guide written for a British city won't reliably tell you the correct size limits or process here; always check directly with Belfast City Council's planning service.

What drives cost in Belfast

Access on the terraced streets around the Holyland and Sandy Row is a familiar factor from any Victorian terraced city - narrow streets often need a permit for a skip. Streets within Belfast's conservation areas, including parts of the Malone and Stranmillis area, typically face closer scrutiny of materials and roofline.