England and Wales: before 1900
marketed sale
Timber frame, as built, no insulation (assumed)
(another dwelling below)
Low energy lighting in 75% of fixed outlets
Pitched, no insulation
Electric storage heaters
Electric immersion, off-peak
electricity (not community)
Portable electric heaters (assumed)
Full secondary glazing
secondary glazing
Automatic charge control
marketed sale
Timber frame, as built, no insulation (assumed)
(another dwelling below)
Low energy lighting in 70% of fixed outlets
Pitched, 250 mm loft insulation
Electric storage heaters
Electric immersion, off-peak
electricity (not community)
Portable electric heaters (assumed)
Mostly secondary glazing
secondary glazing
Automatic charge control