England and Wales: 1967-1975
marketed sale
Cavity wall, as built, no insulation (assumed)
Suspended, no insulation (assumed)
Low energy lighting in 80% of fixed outlets
Pitched, limited insulation (assumed)
Community scheme
Community scheme
mains gas (community)
Some double glazing
double glazing installed during or after 2002
Flat rate charging, room thermostat only
marketed sale
System built, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 50% of fixed outlets
Pitched, limited insulation (assumed)
Community scheme
Community scheme
mains gas (community)
Fully double glazed
double glazing installed during or after 2002
Flat rate charging, TRVs