What insulation adds in N5

71.1 → 78.9

Rating, now → potential

+7.8

Average uplift

£127

Avg saving / yr

14888

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 14888 certificates in N5, the current rating of 71.1 could rise to about 78.9 out of 100. The estimated annual heating cost averages £443 now, and about £316 after the recommended work – an estimated saving of roughly £127 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) – 65.0%
Solid brick, with internal insulation – 5.0%
System built, as built, insulated (assumed) – 3.8%

Recorded as having no wall insulation: 70.0%.

Roofs

(another dwelling above) – 56.2%
Flat, no insulation (assumed) – 6.2%
(other premises above) – 6.2%

Recorded as having no roof insulation: 12.5%.

Glazing

Fully double glazed – 51.2%
Single glazed – 25.6%
Some double glazing – 9.3%

Main heating

Boiler and radiators, mains gas – 82.5%
Room heaters, electric – 8.8%
Community scheme with CHP, mains gas – 5.0%

Which streets need it most

See the streets in N5 with the highest share of homes rated band D or below.

Leakiest streets in N5

Keep exploring

In this area

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