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Postcode district energy-performance profile

CM14 EPC ratings and energy costs

Understand how homes in CM14 score, what certificate-estimated energy costs look like and how much improvement the recorded recommendations suggest.

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Average EPC

C 69

0.5 points above analysed national average

Rated C or above

58.3%

of analysed certificates

Potential uplift

+11

average score points

Properties represented

4K

from 4K certificates

At a glance

What the data says about CM14

58.3%

rated A–C

8.7%

rated E–G

£1,003

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 CM14

A92+
0.1%
B81–91
13.3%
C69–80
69
45.0%
D55–68
33.0%
E39–54
7.7%
F21–38
0.7%
G1–20
0.3%

EPC band distribution in CM14

A
40.1%
B
13.3%
573
C
45.0%
1,943
D
33.0%
1,426
E
3327.7%
F
300.7%
G
140.3%

Certificate-estimated energy costs

Cost TypeCM14National AvgDifference
Heating£733/yr£782/yr▼ £49
Hot water£179/yr£184/yr▼ £5
Lighting£91/yr£95/yr▼ £4
Total£1,003/yr£1,061/yr▼ £58

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

Flat
2,18750.6%
House
1,85042.8%
Maisonette
1683.9%
Bungalow
1172.7%

Main heating fuel

Mains gas
3,46480.8%
Electric
78818.4%
Oil
190.4%
LPG
90.2%
Other
90.2%

Carbon emissions and improvement potential

3.1 t

current annual CO₂ estimate

1.9 t

potential annual estimate

81 m²

average floor area

When the represented homes were built

Pre-1900
6%
1900–1929
11%
1930–1949
11%
1950–1966
12%
1967–1975
15%
1976–1982
5%
1983–1990
6%
1991–1995
2%
1996–2002
4%
2003–2006
7%
2007–2011
9%
2012+
12%

Average EPC score over time

Average EPC efficiency score by year2020: 67, 2021: 69, 2022: 70, 2023: 70, 2024: 69, 2025: 707371696664202020212022202320242025Efficiency score
2020
67
2021
69
2022
70
2023
70
2024
69
2025
70

What to do next

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