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Postcode district energy-performance profile

CW3 EPC ratings and energy costs

Understand how homes in CW3 score, what certificate-estimated energy costs look like and how much improvement the recorded recommendations suggest.

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Average EPC

D 62

6.5 points below analysed national average

Rated C or above

38.0%

of analysed certificates

Potential uplift

+19

average score points

Properties represented

1K

from 1K certificates

At a glance

What the data says about CW3

38.0%

rated A–C

25.4%

rated E–G

£1,548

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 CW3

A92+
0.4%
B81–91
11.5%
C69–80
26.2%
D55–68
62
36.6%
E39–54
18.6%
F21–38
5.1%
G1–20
1.7%

EPC band distribution in CW3

A
50.4%
B
11.5%
157
C
26.2%
357
D
36.6%
499
E
18.6%
254
F
695.1%
G
231.7%

Certificate-estimated energy costs

Cost TypeCW3National AvgDifference
Heating£1,194/yr£782/yr▲ £412
Hot water£233/yr£184/yr▲ £49
Lighting£121/yr£95/yr▲ £26
Total£1,548/yr£1,061/yr▲ £487

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
95369.9%
Bungalow
23717.4%
Flat
15011.0%
Maisonette
241.8%

Main heating fuel

Mains gas
59743.8%
Oil
34925.6%
Electric
25118.4%
LPG
14010.3%
Other
261.9%

Carbon emissions and improvement potential

5.2 t

current annual CO₂ estimate

2.7 t

potential annual estimate

120 m²

average floor area

When the represented homes were built

Pre-1900
16%
1900–1929
6%
1930–1949
5%
1950–1966
15%
1967–1975
15%
1976–1982
5%
1983–1990
7%
1991–1995
5%
1996–2002
4%
2003–2006
3%
2007–2011
8%
2012+
10%

Average EPC score over time

Average EPC efficiency score by year2020: 62, 2021: 63, 2022: 61, 2023: 62, 2024: 63, 2025: 646765636058202020212022202320242025Efficiency score
2020
62
2021
63
2022
61
2023
62
2024
63
2025
64

What to do next

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