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Postcode district energy-performance profile

NP11 EPC ratings and energy costs

Understand how homes in NP11 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

51.8%

of analysed certificates

Potential uplift

+15

average score points

Properties represented

5K

from 5K certificates

At a glance

What the data says about NP11

51.8%

rated A–C

8.8%

rated E–G

£1,081

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 NP11

A92+
1.7%
B81–91
6.5%
C69–80
43.6%
D55–68
68
39.4%
E39–54
7.4%
F21–38
0.9%
G1–20
0.5%

EPC band distribution in NP11

A
891.7%
B
3306.5%
C
43.6%
2,226
D
39.4%
2,010
E
3787.4%
F
460.9%
G
260.5%

Certificate-estimated energy costs

Cost TypeNP11National AvgDifference
Heating£836/yr£782/yr▲ £54
Hot water£150/yr£184/yr▼ £34
Lighting£94/yr£95/yr▼ £1
Total£1,081/yr£1,061/yr▲ £20

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
3,75373.5%
Flat
1,06820.9%
Bungalow
2174.3%
Maisonette
671.3%

Main heating fuel

Mains gas
4,83394.8%
Electric
1813.5%
Other
390.8%
LPG
240.5%
Oil
220.4%

Carbon emissions and improvement potential

3.5 t

current annual CO₂ estimate

1.8 t

potential annual estimate

80 m²

average floor area

When the represented homes were built

Pre-1900
6%
1900–1929
33%
1930–1949
10%
1950–1966
17%
1967–1975
11%
1976–1982
4%
1983–1990
4%
1991–1995
3%
1996–2002
3%
2003–2006
3%
2007–2011
3%
2012+
4%

Average EPC score over time

Average EPC efficiency score by year2020: 67, 2021: 65, 2022: 66, 2023: 68, 2024: 71, 2025: 697471686562202020212022202320242025Efficiency score
2020
67
2021
65
2022
66
2023
68
2024
71
2025
69

What to do next

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