England and Wales: 2007 onwards
marketed sale
Cavity wall, as built, insulated (assumed)
Suspended, insulated (assumed)
No low energy lighting
Roof room(s), insulated (assumed)
Boiler and radiators, mains gas
From main system
mains gas (not community)
Room heaters, dual fuel (mineral and wood)
Fully double glazed
double glazing installed during or after 2002
TRVs and bypass
marketed sale
Cavity wall, as built, insulated (assumed)
Suspended, insulated (assumed)
No low energy lighting
Roof room(s), insulated (assumed)
Boiler and radiators, mains gas
From main system
mains gas (not community)
Room heaters, dual fuel (mineral and wood)
Fully double glazed
double glazing installed during or after 2002
TRVs and bypass