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Postcode district energy-performance profile

IP4 EPC ratings and energy costs

Understand how homes in IP4 score, what certificate-estimated energy costs look like and how much improvement the recorded recommendations suggest.

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Average EPC

D 66

2.5 points below analysed national average

Rated C or above

48.6%

of analysed certificates

Potential uplift

+15

average score points

Properties represented

6K

from 6K certificates

At a glance

What the data says about IP4

48.6%

rated A–C

11.2%

rated E–G

£1,123

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 IP4

A92+
0.1%
B81–91
6.5%
C69–80
42.0%
D55–68
66
40.2%
E39–54
9.3%
F21–38
1.4%
G1–20
0.5%

EPC band distribution in IP4

A
70.1%
B
3896.5%
C
42.0%
2,506
D
40.2%
2,400
E
9.3%
555
F
851.4%
G
290.5%

Certificate-estimated energy costs

Cost TypeIP4National AvgDifference
Heating£829/yr£782/yr▲ £47
Hot water£198/yr£184/yr▲ £14
Lighting£96/yr£95/yr▲ £1
Total£1,123/yr£1,061/yr▲ £62

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
3,66261.3%
Flat
1,75629.4%
Bungalow
3676.1%
Maisonette
1041.7%
Park home
821.4%

Main heating fuel

Mains gas
4,73179.3%
Electric
1,19720.1%
Other
220.4%
Oil
80.1%
LPG
50.1%

Carbon emissions and improvement potential

3.5 t

current annual CO₂ estimate

1.9 t

potential annual estimate

82 m²

average floor area

When the represented homes were built

Pre-1900
16%
1900–1929
20%
1930–1949
16%
1950–1966
9%
1967–1975
6%
1976–1982
4%
1983–1990
6%
1991–1995
3%
1996–2002
5%
2003–2006
6%
2007–2011
6%
2012+
4%

Average EPC score over time

Average EPC efficiency score by year2020: 64, 2021: 65, 2022: 66, 2023: 68, 2024: 68, 2025: 687169666461202020212022202320242025Efficiency score
2020
64
2021
65
2022
66
2023
68
2024
68
2025
68

What to do next

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