The five formats we build across London, with realistic costs, planning notes and the trade-offs nobody mentions on a sales call.
Indicative only. Final figures depend on your plot, party walls and spec — we confirm everything in writing after a free home visit.
Best for: Victorian and Edwardian terraces
Fills in the narrow alley beside the kitchen to square off the floor plan and pull light through the side.
Best for: Maximising open-plan living
A single-storey extension across the full back of the house, typically 3–4m deep, opening onto the garden.
Best for: Combining side-return and rear
An L-shaped extension wrapping around the rear corner — the side-return + a full-width rear in one build.
Best for: Adding a bedroom + downstairs space at once
Extends both ground and first floor — typically gives an enlarged kitchen below and an extra bedroom or en-suite above.
