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Postcode district energy-performance profile

GU31 EPC ratings and energy costs

Understand how homes in GU31 score, what certificate-estimated energy costs look like and how much improvement the recorded recommendations suggest.

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Average EPC

D 65

3.5 points below analysed national average

Rated C or above

48.9%

of analysed certificates

Potential uplift

+16

average score points

Properties represented

2K

from 2K certificates

At a glance

What the data says about GU31

48.9%

rated A–C

21.4%

rated E–G

£1,420

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 GU31

A92+
2.1%
B81–91
9.7%
C69–80
37.0%
D55–68
65
29.7%
E39–54
15.0%
F21–38
4.6%
G1–20
1.7%

EPC band distribution in GU31

A
372.1%
B
9.7%
170
C
37.0%
648
D
29.7%
520
E
15.0%
263
F
814.6%
G
301.7%

Certificate-estimated energy costs

Cost TypeGU31National AvgDifference
Heating£1,082/yr£782/yr▲ £300
Hot water£219/yr£184/yr▲ £35
Lighting£118/yr£95/yr▲ £23
Total£1,420/yr£1,061/yr▲ £359

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
1,24171.0%
Flat
26915.4%
Bungalow
1599.1%
Maisonette
623.5%
Park home
181.0%

Main heating fuel

Mains gas
1,08261.9%
Electric
37321.4%
Oil
21912.5%
LPG
512.9%
Other
221.3%

Carbon emissions and improvement potential

4.4 t

current annual CO₂ estimate

2.3 t

potential annual estimate

115 m²

average floor area

When the represented homes were built

Pre-1900
11%
1900–1929
6%
1930–1949
6%
1950–1966
12%
1967–1975
10%
1976–1982
9%
1983–1990
15%
1991–1995
6%
1996–2002
6%
2003–2006
7%
2007–2011
3%
2012+
8%

Average EPC score over time

Average EPC efficiency score by year2020: 62, 2021: 64, 2022: 65, 2023: 65, 2024: 64, 2025: 677067656259202020212022202320242025Efficiency score
2020
62
2021
64
2022
65
2023
65
2024
64
2025
67

What to do next

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