EPC Ratings in Gwynedd

Local Authority — 20,617 Energy Performance Certificates on record

21K

Certificates

20K

Properties

D (58)

Average Rating

£1,592

Avg Energy Cost/yr

EPC Rating

A92+

2.3%

B81–91

4.5%

C69–80

25.2%

D55–68

32.0%

E39–54

21.7%

F21–38

9.8%

G1–20

4.3%

Gwynedd is 10.5 points worse than the national average (D, 68.5/100).

Gwynedd

68.5

National average

Potential

Rating Distribution

4812.3%

9314.5%

25.2%

5,196

32.0%

6,602

21.7%

4,481

9.8%

2,030

8964.3%

Average Annual Energy Costs

Cost Type	Gwynedd	National Avg	Difference
Heating	£1,241/yr	£782/yr	▲ £459
Hot water	£249/yr	£184/yr	▲ £65
Lighting	£102/yr	£95/yr	▲ £7
Total	£1,592/yr	£1,061/yr	▲ £531

Property Types

House

14,35169.6%

Flat

2,92014.2%

Bungalow

2,91214.1%

Maisonette

4232.1%

Park home

110.1%

Main Heating Fuel

Mains gas

9,80347.7%

Electric

5,28225.7%

Oil

2,94114.3%

LPG

1,5707.6%

Other

9384.6%

CO₂ Emissions

5 tonnes/yr

Current average

2.3 tonnes/yr

Potential

Average floor area: 93 m²

Construction Age

Pre-1900

7,786

1900–1929

2,162

1930–1949

1,448

1950–1966

2,304

1967–1975

1,761

1976–1982

1,256

1983–1990

802

1991–1995

578

1996–2002

449

2003–2006

338

2007–2011

284

2012+

1,227

Efficiency Trend Over Time

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Gwynedd has 20,617 Energy Performance Certificates on record, covering 19,518 properties. The average EPC rating is D with an efficiency score of 58 out of 100. Annual energy costs average £1,592, comprising £1,241 for heating, £249 for hot water and £102 for lighting. Average CO₂ emissions are 5 tonnes per year.