Leakiest streets in WD3

46.4%

Band D or below

Certificates

67.8

Average rating

£127

Avg potential saving / yr

What this means

Across 69 energy certificates in WD3, 32 (46.4%) are rated band D or below. The average current rating is 67.8 out of 100, which the recommended improvements on those certificates would lift to about 77.3. The average estimated annual heating cost is £496, falling to about £369 after the recommended work – a saving of roughly £127 a year.

B C D E F G

B 7.2% C 46.4% D 26.1% E 14.5% F 2.9% G 2.9%

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

How WD3 compares

Set against the average across the 3,339,357 energy certificates in our dataset (average current rating 67.8, with 51.7% band D or below):

Band D or below here is 46.4%, 5.3 points lower (more efficient).
The average current rating here is 67.8, level with 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

Cavity wall, as built, insulated (assumed) – 65.0%
Timber frame, as built, insulated (assumed) – 12.5%
Solid brick, as built, no insulation (assumed) – 12.5%

Recorded as having no wall insulation: 12.5%.

Roofs

(another dwelling above) – 55.0%
Pitched, insulated (assumed) – 12.5%
Pitched, 250 mm loft insulation – 7.5%

Recorded as having no roof insulation: 2.5%.

Glazing

Fully double glazed – 100.0%

Main heating

Room heaters, electric – 32.5%
Boiler and radiators, electric – 32.5%
Boiler and radiators, mains gas – 12.5%

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 WD3

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