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Postcode district energy-performance profile

TN9 EPC ratings and energy costs

Understand how homes in TN9 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

56.8%

of analysed certificates

Potential uplift

+12

average score points

Properties represented

3K

from 3K certificates

At a glance

What the data says about TN9

56.8%

rated A–C

9.9%

rated E–G

£1,007

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 TN9

A92+
0.1%
B81–91
15.1%
C69–80
69
41.7%
D55–68
33.3%
E39–54
8.2%
F21–38
1.3%
G1–20
0.3%

EPC band distribution in TN9

A
20.1%
B
15.1%
451
C
41.7%
1,246
D
33.3%
996
E
8.2%
246
F
401.3%
G
100.3%

Certificate-estimated energy costs

Cost TypeTN9National AvgDifference
Heating£720/yr£782/yr▼ £62
Hot water£193/yr£184/yr▲ £9
Lighting£95/yr£95/yr —
Total£1,007/yr£1,061/yr▼ £54

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
1,74558.3%
Flat
1,12237.5%
Maisonette
822.7%
Bungalow
421.4%

Main heating fuel

Mains gas
2,38779.8%
Electric
58819.7%
Other
100.3%
Oil
30.1%
LPG
30.1%

Carbon emissions and improvement potential

3 t

current annual CO₂ estimate

1.6 t

potential annual estimate

82 m²

average floor area

When the represented homes were built

Pre-1900
12%
1900–1929
23%
1930–1949
9%
1950–1966
8%
1967–1975
4%
1976–1982
2%
1983–1990
5%
1991–1995
4%
1996–2002
6%
2003–2006
7%
2007–2011
7%
2012+
14%

Average EPC score over time

Average EPC efficiency score by year2020: 66, 2021: 66, 2022: 67, 2023: 69, 2024: 68, 2025: 747774706763202020212022202320242025Efficiency score
2020
66
2021
66
2022
67
2023
69
2024
68
2025
74

What to do next

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