Local studio GS Architecture has completed its renovation and extension of a family home in Hampstead Heath, London , updating it to meet low-energy Passivhaus standards. Named Hampstead Passive House, the semi-detached Victorian home was overhauled to create a more comfortable, light-filled dwelling with significantly reduced energy consumption. GS Architecture has retrofitted a home in Hampstead Heath GS Architecture set out to achieve the rigorous Passivhaus EnerPHit standard, which certifies low-energy buildings that have been refurbished with high levels of insulation and airtightness. It upgraded the house with improved insulation and triple-glazed windows, while introducing solar panels, low-energy lighting and a mechanical ventilation and heat recovery system.…