What insulation adds in WC1X

69.1 → 74.9

Rating, now → potential

+5.8

Average uplift

£138

Avg saving / yr

2365

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 2365 certificates in WC1X, the current rating of 69.1 could rise to about 74.9 out of 100. The estimated annual heating cost averages £577 now, and about £439 after the recommended work – an estimated saving of roughly £138 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) – 53.8%
System built, as built, insulated (assumed) – 6.2%
System built, as built, no insulation (assumed) – 5.0%

Recorded as having no wall insulation: 63.8%.

Roofs

(another dwelling above) – 51.2%
Pitched, no insulation (assumed) – 6.2%
Pitched, insulated (assumed) – 5.0%

Recorded as having no roof insulation: 11.2%.

Glazing

Fully double glazed – 56.1%
Single glazed – 24.4%
Partial secondary glazing – 7.3%

Main heating

Boiler and radiators, mains gas – 63.8%
Community scheme – 16.2%
Electric storage heaters – 7.5%

Which streets need it most

See the streets in WC1X with the highest share of homes rated band D or below.

Leakiest streets in WC1X

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