Kate and Geoff's house in Derby is likely to become a Superhome very soon. This house is currently being refurbished to EnerPHit (the Passivhaus refurbishment standard).
This 1950s detached house is East-West facing and has been extended at some point to give 5 bedrooms, and a 1980s single storey extension.
The refurbishment work includes insulation under floors, a "warm roof", external wall insulation (and some cavity wall insulation - rather odd original construction to say the least).
The work also includes Passivhaus-suitable triple glazing, a new boiler but some old radiators retained, lots
of water saving improvements, a recycled solar PV system, a tank suitable for adding solar hot water in the future, ...plus big fruit and vegetable plots, and ex-battery chickens!