England and Wales: 1900-1929
marketed sale
Solid brick, as built, no insulation (assumed)
Suspended, no insulation (assumed)
Low energy lighting in 13% of fixed outlets
Pitched, no insulation (assumed)
No system present: electric heaters assumed
No system present: electric immersion assumed
To be used only when there is no heating/hot-water system or data is from a community network
Fully double glazed
double glazing installed during or after 2002
marketed sale
Solid brick, as built, no insulation (assumed)
Suspended, no insulation (assumed)
Low energy lighting in all fixed outlets
Roof room(s), insulated (assumed)
Electric storage heaters
Electric immersion, off-peak
electricity (not community)
Fully double glazed
double glazing installed during or after 2002
Automatic charge control