Bow ZED (Zero Energy Development) is a block of 4 flats, just off the Bow Road in east London spread over four floors with one unit per floor. On the ground floor is a 70mē 1 bedroom flat that also has planning permission to operate a business from home, thus reducing carbon emissions by eliminating the need to travel to work. The first floor accommodates a 55mē 2 bedroom apartment. Above this is a 40mē 1 bed flat and crowning the building is a 35mē 1 bed studio. The structure is highly insulated and all the units have heat reclamation ventilation together with a south facing terrace and conservatory featuring photovoltaic cells that generate half of the scheme's annual electricity needs - the other half coming from a micro wind generator. The south facing glazing allows for passive heat gains with back-up heating coming from a 15kW wood pellet boiler that also provides hot water. All the units sold quickly when offered for sale indicating a healthy demand for this kind of development.