A finely crafted timber-clad addition to a traditional semi-detached home. The design responds to the constraints of the narrow site by taking every opportunity to expand each room to the outdoors. An unexpected courtyard balcony is created by expanding the master bedroom into the existing roof form. The staircase punches up to create a window to the sky in the centre of the plan. The edge of the living room is pushed out to the fence to utilise the full width of the site.