projects›Avenue Road
Floating helical concrete staircase
Floating helical concrete staircase
Residential — Refurbishment & extension

Avenue Road

London
Residential Detached house New-build extension
Year
2009
Type
Detached house
Size
253 sqm internal
Scope
Refurb & extension
Overview

Reconstruction and extension of a detached house in London

Round rooflight lighting the staircase

An existing two storey detached house in St Johns Wood, London, was completely rebuilt and extended from the ground up, retaining only the external walls. An additional floor was added over the existing building, and a new glass extension.

Kitchen opening onto the staircase
Bathrooms & garden
Wooden counter with a mirror on it and marble walls beside walk-in shower
Conservatory with metal frame
Curved window open on the garden
Light
Section's diagram of the central position of the staircase in the house and its view onto the garden
Repetition of vertical openings to maximize the daylight of the staircase
Walk-in shower with glass and marble
Ensuite walk-in shower with large rooflight above and basin on wooden counter
Construction
Refurbishment of the house
A breeze block wall construction
Hole for helical stairs seen from below
Installing wall around the stairs
Installing the steps of the stairs
Project credits
Structural engineerPrice & Myers