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Postcode district energy-performance profile

CW10 EPC ratings and energy costs

Understand how homes in CW10 score, what certificate-estimated energy costs look like and how much improvement the recorded recommendations suggest.

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Average EPC

D 68

0.5 points below analysed national average

Rated C or above

51.4%

of analysed certificates

Potential uplift

+15

average score points

Properties represented

2K

from 2K certificates

At a glance

What the data says about CW10

51.4%

rated A–C

9.2%

rated E–G

£1,032

certificate-estimated annual cost

Cost figures are averages of estimates recorded on EPCs at different dates. They are useful for comparing areas, but they are not a forecast of a current household bill.

Average EPC score in CW10

A92+
1.0%
B81–91
13.5%
C69–80
36.9%
D55–68
68
39.4%
E39–54
6.7%
F21–38
1.9%
G1–20
0.5%

EPC band distribution in CW10

A
231.0%
B
13.5%
322
C
36.9%
882
D
39.4%
942
E
1616.7%
F
451.9%
G
130.5%

Certificate-estimated energy costs

Cost TypeCW10National AvgDifference
Heating£761/yr£782/yr▼ £21
Hot water£178/yr£184/yr▼ £6
Lighting£93/yr£95/yr▼ £2
Total£1,032/yr£1,061/yr▼ £29

These values come from certificate assessments and reflect standardised occupancy assumptions and energy prices used when each EPC was produced. They are not live tariffs.

Property types in the dataset

House
1,73872.8%
Flat
33213.9%
Bungalow
29112.2%
Maisonette
261.1%
Park home
10.0%

Main heating fuel

Mains gas
2,06986.6%
Electric
2018.4%
Oil
632.6%
LPG
331.4%
Other
220.9%

Carbon emissions and improvement potential

3.3 t

current annual CO₂ estimate

1.7 t

potential annual estimate

87 m²

average floor area

When the represented homes were built

Pre-1900
6%
1900–1929
15%
1930–1949
7%
1950–1966
13%
1967–1975
5%
1976–1982
5%
1983–1990
8%
1991–1995
8%
1996–2002
9%
2003–2006
5%
2007–2011
3%
2012+
15%

Average EPC score over time

Average EPC efficiency score by year2020: 67, 2021: 65, 2022: 67, 2023: 70, 2024: 68, 2025: 717471686562202020212022202320242025Efficiency score
2020
67
2021
65
2022
67
2023
70
2024
68
2025
71

What to do next

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