What is the average EPC rating in Vale of Glamorgan?

The analysed certificates in Vale of Glamorgan have an average EPC rating of C, with an average efficiency score of 70 out of 100.

How many properties does the Vale of Glamorgan analysis represent?

The 2020–2025 analysis contains 20,540 certificates linked to 19,922 distinct property references. A property may have more than one certificate.

Can EPCScore show the certificate for a specific home in Vale of Glamorgan?

No. EPCScore publishes aggregated area statistics. Use the official GOV.UK Energy Performance of Buildings Register to find an individual certificate.

Local authority energy-performance profile

Vale of Glamorgan EPC ratings and energy costs

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

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Average EPC

C 70

1.5 points above analysed national average

Rated C or above

60.5%

of analysed certificates

Potential uplift

+13

average score points

Properties represented

20K

from 21K certificates

At a glance

What the data says about Vale of Glamorgan

60.5%

rated A–C

8.5%

rated E–G

£1,049

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.

Latest official local-authority table

Updated through 30 June 2026

63,534

domestic EPC lodgements since 2008

46.3%

rated C or above

16.9%

rated E, F or G

The current MHCLG live table counts certificate lodgements, not unique homes. It complements the more detailed 2020–2025 EPCScore analysis below.

Housing market context — May 2026

Average property price

£292,677

Annual change

+2.9%

Context

Official UK HPI local-authority average

detached£520,075

semi-detached£308,033

terraced£238,887

flat£150,967

UK HPI figures are provisional and can be revised. They describe the whole local housing market; EPCScore does not infer that EPC ratings caused local price levels or changes. View the official UK HPI ↗

Average EPC score in Vale of Glamorgan

A92+

2.3%

B81–91

14.4%

C69–80

43.8%

D55–68

31.0%

E39–54

6.7%

F21–38

1.4%

G1–20

0.4%

EPC band distribution in Vale of Glamorgan

4662.3%

14.4%

2,950

43.8%

9,003

31.0%

6,371

1,3836.7%

2851.4%

820.4%

Certificate-estimated energy costs

Cost Type	Vale of Glamorgan	National Avg	Difference
Heating	£779/yr	£782/yr	▼ £3
Hot water	£166/yr	£184/yr	▼ £18
Lighting	£103/yr	£95/yr	▲ £8
Total	£1,049/yr	£1,061/yr	▼ £12

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

13,90467.7%

Flat

5,12224.9%

Bungalow

1,2225.9%

Maisonette

2781.4%

Park home

140.1%

Main heating fuel

Mains gas

17,57785.6%

Electric

2,07410.1%

Oil

5882.9%

LPG

2231.1%

Other

640.3%

Carbon emissions and improvement potential

3.3 t

current annual CO₂ estimate

1.7 t

potential annual estimate

95 m²

average floor area

When the represented homes were built

Pre-1900

1900–1929

17%

1930–1949

1950–1966

12%

1967–1975

13%

1976–1982

1983–1990

1991–1995

1996–2002

2003–2006

2007–2011

2012+

12%

Average EPC score over time

2020: 69
2021: 69
2022: 70
2023: 69
2024: 71
2025: 70

What to do next

Find one property's EPC ↗

Use the official register for an address-level certificate.

Plan sensible improvements →

Read recommendations in the right order before spending.

Compare another area →

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Check the methodology →

Understand coverage, dates and limitations.