Professor Wolfgang Feist, founder of the Passivhaus Institute, has presented Hastoe with the Certified Passivhaus seal for its affordable housing development at Ditchingham. The 14 low carbon homes in Norfolk will have very low running costs. Features of the homes include: whole house ventilation system, improved insulation and air tightness, water saving taps and shower fittings, low energy lighting, recycling facilities, bicycle storage, composter, bird boxes and bird tables and the b...