Designed by Black Box Architects, these highly efficient homes avoid the need for fossil fuels for traditional central heating and hot water production.
It utilises orientation, sunshine, shade, ventilation and optimal material selection. The only technical input being solar roof panels linked to the electrical circuits for hot water storage and air source heat pumps to feed the underfloor heating system.
The houses use solar gain and external thermal insulation to retain heat all year round with solid wall construction and no cavities or cold spots. They use high levels of insulation, airtightness and building materials, offering up to 90% less energy than a standard home. Also offering superior indoor comfort thanks to the consistent temperatures and quality of airflow. They also have the added benefit of reducing both external and internal noise due to the high levels of insulation and triple-glazed windows.
EPC Energy levels of 96% were calculated at pre-build stage, increased to ‘98% efficiency and the further option to reach a full 100% efficiency, a very difficult target to achieve. An average home in England during 2020 was Band D 60, which demonstrates the difference in applying simple design principles from the beginning with a receptive client.