England and Wales: 1900-1929
marketed sale
Solid brick, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 94% of fixed outlets
Pitched, no insulation (assumed)
Boiler and underfloor heating, mains gas
From main system
mains gas (not community)
Room heaters, mains gas
Single glazed
single glazing
Programmer and at least two room thermostats
marketed sale
Solid brick, with internal insulation
Solid, insulated
Low energy lighting in 94% of fixed outlets
Pitched, 300+ mm loft insulation
Boiler and underfloor heating, mains gas
From main system
mains gas (not community)
Room heaters, mains gas
Full secondary glazing
secondary glazing
Programmer and at least two room thermostats