England and Wales: before 1900
rental (private)
Solid brick, as built, no insulation (assumed)
(other premises below)
Low energy lighting in 70% of fixed outlets
Flat, limited insulation
Boiler and radiators, mains gas
From main system
mains gas (not community)
Fully double glazed
double glazing installed before 2002
Programmer, room thermostat and TRVs
marketed sale
Solid brick, with internal insulation
(other premises below)
Low energy lighting in all fixed outlets
(another dwelling above)
Boiler and radiators, mains gas
From main system
mains gas (not community)
Fully double glazed
double glazing, unknown install date
Programmer, TRVs and bypass