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Postcode district energy-performance profile

GU9 EPC ratings and energy costs

Understand how homes in GU9 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

54.6%

of analysed certificates

Potential uplift

+13

average score points

Properties represented

5K

from 5K certificates

At a glance

What the data says about GU9

54.6%

rated A–C

9.7%

rated E–G

£1,172

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 GU9

A92+
0.5%
B81–91
13.6%
C69–80
40.5%
D55–68
68
35.7%
E39–54
8.5%
F21–38
0.9%
G1–20
0.3%

EPC band distribution in GU9

A
260.5%
B
13.6%
657
C
40.5%
1,957
D
35.7%
1,726
E
8.5%
411
F
450.9%
G
130.3%

Certificate-estimated energy costs

Cost TypeGU9National AvgDifference
Heating£873/yr£782/yr▲ £91
Hot water£198/yr£184/yr▲ £14
Lighting£101/yr£95/yr▲ £6
Total£1,172/yr£1,061/yr▲ £111

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
3,10864.3%
Flat
1,19724.8%
Bungalow
3336.9%
Maisonette
1974.1%

Main heating fuel

Mains gas
3,99782.7%
Electric
80716.7%
Other
210.4%
LPG
90.2%
Oil
10.0%

Carbon emissions and improvement potential

3.5 t

current annual CO₂ estimate

2 t

potential annual estimate

99 m²

average floor area

When the represented homes were built

Pre-1900
7%
1900–1929
12%
1930–1949
9%
1950–1966
15%
1967–1975
13%
1976–1982
7%
1983–1990
7%
1991–1995
4%
1996–2002
4%
2003–2006
3%
2007–2011
3%
2012+
17%

Average EPC score over time

Average EPC efficiency score by year2020: 67, 2021: 69, 2022: 70, 2023: 68, 2024: 67, 2025: 697371696664202020212022202320242025Efficiency score
2020
67
2021
69
2022
70
2023
68
2024
67
2025
69

What to do next

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