What insulation adds in WC1N

66.2 → 73.9

Rating, now → potential

+7.7

Average uplift

£140

Avg saving / yr

3724

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 3724 certificates in WC1N, the current rating of 66.2 could rise to about 73.9 out of 100. The estimated annual heating cost averages £466 now, and about £325 after the recommended work – an estimated saving of roughly £140 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

Solid brick, as built, no insulation (assumed) – 60.0%
System built, as built, no insulation (assumed) – 12.5%
Cavity wall, as built, no insulation (assumed) – 7.5%

Recorded as having no wall insulation: 82.5%.

Roofs

(another dwelling above) – 82.5%
Pitched, no insulation (assumed) – 2.5%
Pitched, no insulation – 2.5%

Recorded as having no roof insulation: 7.5%.

Glazing

Single glazed – 58.3%
Fully double glazed – 20.8%
Partial secondary glazing – 8.3%

Main heating

Community scheme – 45.0%
Boiler and radiators, mains gas – 40.0%
Room heaters, electric – 7.5%

Which streets need it most

See the streets in WC1N with the highest share of homes rated band D or below.

Leakiest streets in WC1N

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