The European portal for energy efficiency and renewable energy in buildings
Detached single family house in Norwich, UK
Case study
United Kingdom
Detached single family house in Norwich, UK
16 December 2024
An off-grid, timber-framed barn replacement in Norwich features sustainable design, cellulose insulation, rainwater harvesting, and a 12 kWp PV system with battery storage, achieving exceptionally low energy demand.
Luca Papapietro
A self-build barn replacement in Norwich (UK) utilises sustainable construction and off-grid energy solutions.
The timber-framed, cellulose-insulated house (219 m²) features a first-floor within the roof, maximising space under planning constraints.
Its thermal envelope includes highlyinsulated walls, floors, and roof.
Powered by a 12 kWp PV array and 30.8 kWh battery, it operates off-grid with rainwater harvesting for WC flushing.
Mechanical systems include efficient ventilation, post-heaters, and insulated water storage, achieving minimal energy demand (14 kWh/m²a).
