England and Wales: 1967-1975
marketed sale
Cavity wall, filled cavity
(other premises below)
Low energy lighting in 20% of fixed outlets
(another dwelling above)
Boiler and radiators, mains gas
From main system
mains gas (not community)
Fully double glazed
double glazing installed before 2002
Programmer and at least two room thermostats
marketed sale
Cavity wall, filled cavity
(another dwelling below)
Low energy lighting in 33% of fixed outlets
(another dwelling above)
Boiler and radiators, mains gas
From main system
mains gas (not community)
Fully double glazed
double glazing installed during or after 2002
Programmer and room thermostat