Leakiest streets in N19

47.1%

Band D or below

20315

Certificates

68.2

Average rating

£105

Avg potential saving / yr

What this means

Across 20315 energy certificates in N19, 9559 (47.1%) are rated band D or below. The average current rating is 68.2 out of 100, which the recommended improvements on those certificates would lift to about 74.7. The average estimated annual heating cost is £448, falling to about £343 after the recommended work – a saving of roughly £105 a year.

A B C D E F G

A 0.1% B 8.1% C 44.8% D 36.1% E 8.9% F 1.6% G 0.4%

Every figure is computed across the certificates in this area – no individual property is identified or listed.

How N19 compares

Set against the average across the 149,623 energy certificates in our dataset (average current rating 70.2, with 41.2% band D or below):

Band D or below here is 47.1%, 5.9 points higher (leakier).
The average current rating here is 68.2, 2.0 points below the wider-dataset average.

Indicative comparison against the certificates we hold, not an official national statistic. Check the official source for area statistics.

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) – 42.5%
Cavity wall, filled cavity – 16.2%
Cavity wall, as built, no insulation (assumed) – 8.8%

Recorded as having no wall insulation: 53.8%.

Roofs

(another dwelling above) – 47.5%
Pitched, no insulation (assumed) – 8.8%
Flat, limited insulation (assumed) – 8.8%

Recorded as having no roof insulation: 11.2%.

Glazing

Fully double glazed – 40.4%
Single glazed – 31.9%
Some double glazing – 8.5%

Main heating

Boiler and radiators, mains gas – 58.8%
Community scheme – 36.2%
Room heaters, electric – 2.5%

Retrofit measures for this housing stock

Based on the construction recorded on the certificates here, these guides cover the measures that most often apply, with typical UK costs and savings cited to public sources.

All retrofit guides

What insulation adds in N19

See the average current-to-potential uplift and the estimated heating-cost saving for this area.