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Postcode district energy-performance profile

DL11 EPC ratings and energy costs

Understand how homes in DL11 score, what certificate-estimated energy costs look like and how much improvement the recorded recommendations suggest.

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Average EPC

E 52

16.5 points below analysed national average

Rated C or above

17.6%

of analysed certificates

Potential uplift

+30

average score points

Properties represented

870

from 930 certificates

At a glance

What the data says about DL11

17.6%

rated A–C

54.0%

rated E–G

£2,487

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 DL11

A92+
0.9%
B81–91
4.3%
C69–80
12.5%
D55–68
28.4%
E39–54
52
32.8%
F21–38
16.7%
G1–20
4.5%

EPC band distribution in DL11

A
80.9%
B
404.3%
C
12.5%
116
D
28.4%
264
E
32.8%
305
F
16.7%
155
G
424.5%

Certificate-estimated energy costs

Cost TypeDL11National AvgDifference
Heating£2,075/yr£782/yr▲ £1,293
Hot water£289/yr£184/yr▲ £105
Lighting£123/yr£95/yr▲ £28
Total£2,487/yr£1,061/yr▲ £1,426

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
73478.9%
Bungalow
14815.9%
Flat
424.5%
Maisonette
60.6%

Main heating fuel

Oil
50854.9%
Electric
28630.9%
LPG
626.7%
Other
545.8%
Mains gas
151.6%

Carbon emissions and improvement potential

8.5 t

current annual CO₂ estimate

4.2 t

potential annual estimate

126 m²

average floor area

When the represented homes were built

Pre-1900
49%
1900–1929
9%
1930–1949
4%
1950–1966
4%
1967–1975
4%
1976–1982
3%
1983–1990
4%
1991–1995
2%
1996–2002
4%
2003–2006
4%
2007–2011
4%
2012+
9%

Average EPC score over time

Average EPC efficiency score by year2020: 47, 2021: 46, 2022: 53, 2023: 55, 2024: 54, 2025: 525854514743202020212022202320242025Efficiency score
2020
47
2021
46
2022
53
2023
55
2024
54
2025
52

What to do next

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