The massing consists of a brick enclosure surrounding an internal courtyard at ground floor level, reflecting the existing boundary walls in proximity to the site, and a metal lantern structure housing a mezzanine level on top. The focus of the ground floor living spaces is a brick chimney, around which the staircase to the mezzanine and a window seat are sited. The internal courtyard is delineated by a timber enclosure facing the existing footpath and main elevation of the house. The proximity of transport links means that cycle parking has been prioritised over vehicle access.