Family home with a minimal carbon footprint on a very narrow site (8ft wide). Environmentally friendly house, utilising amongst many eco-friendly devices ground source heat pump heating & rainwater harvesting. RIBA Manser Medal Winner 2009.
A new build, low energy, house on a narrow site in Bayswater designed to minimise its carbon footprint. It was developed with Arup Environmental Engineering to determine the most cost effective methods of achieving an environmentally friendly house. This was achieved despite a site only 8ft wide to the street, within a conservation area and jammed between two listed buildings. The building is a comfortable family house yet it’s also an example of how sustainable architecture can be achieved without compromise on the tightest of sites.
The building has a highly-insulated building envelope and utilises passively ventilated bathrooms to reduce energy consumption. A ground-coupled heat pump system maximises winter solar gain and minimises summer cooling by drawing heat out of the ground in winter, using three 50m deep bore holes which connect back to a heat pump that extracts the heat and transfers it to the underfloor heating circuits that run throughout the house. Rainwater is harvested to flush the toilets.
The stair running up the centre of the house is made from a sustainably sourced 19mm larch composite board. It has a central void to allow light down from the roof light to each of the floors into the centre of the plan. It’s also held off the walls with stainless steel pins and thus allows more light down around the edges and architecturally separates the stair from the walls, making it feel more like a piece of sculpture than a stair.
The boards were cut on a C&C machine that cut out each of the component parts to within 0.1mm and then assembled as a kit of parts on site. It was constructed by Tin Tab, based in West Sussex. The handrail is made by cutting a simple groove in the outer surface that guides the hand as you walk up or down. We therefore avoided the need for a handrail on the outside wall edge.
The building uses approximately one third of the energy of a new house built to the current Building Regulations.