What insulation adds in WC1V

69.7 → 76.8

Rating, now → potential

+7.0

Average uplift

£79

Avg saving / yr

245

Certificates

The realistic uplift

Each energy certificate lists the improvements an assessor recommends and the rating the home would reach if they were done. Averaged across 245 certificates in WC1V, the current rating of 69.7 could rise to about 76.8 out of 100. The estimated annual heating cost averages £348 now, and about £269 after the recommended work – an estimated saving of roughly £79 a year.

These are the register's own estimates, averaged across many homes; the figure for any one property depends on its fabric and how it is heated.

What the certificates say about the fabric

The most common construction descriptions recorded across these certificates. Percentages are of certificates where the field was recorded.

Walls

Cavity wall, as built, insulated (assumed) – 42.5%
System built, as built, insulated (assumed) – 17.5%
Solid brick, as built, no insulation (assumed) – 12.5%

Recorded as having no wall insulation: 15.0%.

Roofs

(another dwelling above) – 72.5%
(other premises above) – 10.0%
Flat, no insulation (assumed) – 5.0%

Recorded as having no roof insulation: 7.5%.

Glazing

Fully double glazed – 85.0%
Multiple glazing throughout – 10.0%
Single glazed – 5.0%

Main heating

Room heaters, electric – 40.0%
Warm air, Electricaire – 15.0%
Air source heat pump, warm air, electric – 15.0%

Which streets need it most

See the streets in WC1V with the highest share of homes rated band D or below.

Leakiest streets in WC1V

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