Energy efficiency on Colwell Drive, Witney

66.7%

Band D or below

Certificates

64.8

Average rating

+18.0

Potential uplift

What this means

Across 36 energy certificates on Colwell Drive, Witney, 24 (66.7%) are rated band D or below. The average current rating is 64.8 out of 100, rising to about 82.8 after the improvements recommended on those certificates – an average uplift of 18.0 points. The average estimated annual heating cost is £636, falling to about £480 – a saving of roughly £156 a year.

B C D E F

B 8.3% C 25.0% D 50.0% E 13.9% F 2.8%

Every figure is an aggregate across the certificates on this street. No individual property, address or occupier is identified.

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, no insulation (assumed) – 39.4%
Cavity wall, filled cavity – 33.3%
Cavity wall, as built, partial insulation (assumed) – 9.1%

Recorded as having no wall insulation: 39.4%.

Roofs

Pitched, 100 mm loft insulation – 27.3%
Pitched, limited insulation (assumed) – 21.2%
Pitched, 50 mm loft insulation – 6.1%

Recorded as having no roof insulation: 3.0%.

Glazing

Fully double glazed – 100.0%

Main heating

Boiler and radiators, mains gas – 97.0%
Electric storage heaters – 3.0%

The wider area

See how this street compares with others in OX28.

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