Wahroonga, Ledbury

• Wahroonga is a private house in Ledbury that has been certified as a Passivhaus
• It has been constructed using a timber frame insulated with a mixture of sheep's wool and Warmcell, which is made out of recycled newspaper. It sits on a 200mm reinforced concrete slab (for thermal mass) insulated below
• Heating is provided by a conventional gas central heating system, however, the heating requirement is very low with solar thermal heating providing some of the building's hot water