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Postcode district energy-performance profile

CW12 EPC ratings and energy costs

Understand how homes in CW12 score, what certificate-estimated energy costs look like and how much improvement the recorded recommendations suggest.

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Average EPC

C 71

2.5 points above analysed national average

Rated C or above

60.4%

of analysed certificates

Potential uplift

+14

average score points

Properties represented

7K

from 7K certificates

At a glance

What the data says about CW12

60.4%

rated A–C

7.2%

rated E–G

£1,004

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 CW12

A92+
2.3%
B81–91
29.8%
C69–80
71
28.3%
D55–68
32.4%
E39–54
5.3%
F21–38
1.5%
G1–20
0.4%

EPC band distribution in CW12

A
1552.3%
B
29.8%
2,051
C
28.3%
1,950
D
32.4%
2,227
E
3665.3%
F
1031.5%
G
290.4%

Certificate-estimated energy costs

Cost TypeCW12National AvgDifference
Heating£742/yr£782/yr▼ £40
Hot water£165/yr£184/yr▼ £19
Lighting£96/yr£95/yr▲ £1
Total£1,004/yr£1,061/yr▼ £57

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
5,03473.2%
Flat
88612.9%
Bungalow
87912.8%
Maisonette
821.2%

Main heating fuel

Mains gas
6,09388.6%
Electric
4857.1%
Oil
1622.4%
LPG
901.3%
Other
490.7%

Carbon emissions and improvement potential

3.1 t

current annual CO₂ estimate

1.7 t

potential annual estimate

93 m²

average floor area

When the represented homes were built

Pre-1900
8%
1900–1929
6%
1930–1949
7%
1950–1966
15%
1967–1975
12%
1976–1982
5%
1983–1990
5%
1991–1995
4%
1996–2002
4%
2003–2006
2%
2007–2011
2%
2012+
29%

Average EPC score over time

Average EPC efficiency score by year2020: 71, 2021: 71, 2022: 71, 2023: 73, 2024: 72, 2025: 717674727068202020212022202320242025Efficiency score
2020
71
2021
71
2022
71
2023
73
2024
72
2025
71

What to do next

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