England and Wales: 2007 onwards
marketed sale
Timber frame, as built, insulated (assumed)
Suspended, insulated (assumed)
Low energy lighting in 17% of fixed outlets
Pitched, 350 mm loft insulation
Boiler and radiators, mains gas
From main system
mains gas (not community)
Fully double glazed
double glazing installed during or after 2002
Programmer and at least two room thermostats
marketed sale
Timber frame, as built, insulated (assumed)
Suspended, insulated (assumed)
Low energy lighting in 48% of fixed outlets
Pitched, 400+ mm loft insulation
Boiler and radiators, mains gas
From main system
mains gas (not community)
Fully double glazed
double glazing installed during or after 2002
Programmer, room thermostat and TRVs