What insulation adds in NW9

69.4 → 78.3

Rating, now → potential

+8.8

Average uplift

£136

Avg saving / yr

37412

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 37412 certificates in NW9, the current rating of 69.4 could rise to about 78.3 out of 100. The estimated annual heating cost averages £488 now, and about £352 after the recommended work – an estimated saving of roughly £136 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) – 51.7%
Cavity wall, as built, insulated (assumed) – 7.5%
Cavity wall, as built, no insulation (assumed) – 5.8%

Recorded as having no wall insulation: 59.2%.

Roofs

(another dwelling above) – 30.8%
(other premises above) – 15.8%
Pitched, 100 mm loft insulation – 10.8%

Recorded as having no roof insulation: 10.8%.

Glazing

Fully double glazed – 96.7%
Single glazed – 1.6%
Mostly double glazing – 1.6%

Main heating

Boiler and radiators, mains gas – 66.7%
Community scheme – 19.2%
Room heaters, electric – 5.8%

Which streets need it most

See the streets in NW9 with the highest share of homes rated band D or below.

Leakiest streets in NW9

Keep exploring

In this area

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