Gwynedd flat energy efficiency

June 2023

Flats are energetically very inefficient. The average flat energy rating in Gwynedd county is 63.8, D rating. This is by 5.6 worse score than the average flat energy rating in England and Wales. The average potential rating is 73.6, C rating.

Gwynedd flats by energy rating

Energy rating	Gwynedd	England & Wales
█ A	0.4%	0.1%
█ B	11.2%	17.3%
█ C	56.7%	63.1%
█ D	8.6%	8.1%
█ E	14.7%	9.0%
█ F	6.1%	1.8%
█ G	2.4%	0.6%

Gwynedd flats by potential energy rating

Potential energy rating	Gwynedd	England & Wales
█ A	0.4%	0.1%
█ B	17.9%	27.1%
█ C	73.4%	68.5%
█ D	3.0%	2.2%
█ E	3.6%	1.6%
█ F	1.4%	0.4%
█ G	0.3%	0.1%

Gwynedd flats by main heating control energy efficiency

Main heating control	Gwynedd	England & Wales
█ very poor	2.5%	5.2%
█ poor	22.1%	15.2%
█ average	20.8%	25.3%
█ good	51.1%	51.0%
█ very good	3.5%	3.3%

Gwynedd flats by main heating energy efficiency

Main heat efficiency	Gwynedd	England & Wales
█ very poor	16.5%	14.1%
█ poor	6.6%	4.8%
█ average	19.4%	12.2%
█ good	54.5%	62.1%
█ very good	2.9%	6.7%

Gwynedd flats by walls energy efficiency

Walls efficiency	Gwynedd	England & Wales
█ very poor	26.8%	22.9%
█ poor	15.1%	14.6%
█ average	5.3%	7.8%
█ good	39.7%	39.9%
█ very good	13.2%	14.8%

Gwynedd flats by windows energy efficiency

Windows efficiency	Gwynedd	England & Wales
█ very poor	7.7%	9.7%
█ poor	4.5%	3.6%
█ average	41.2%	42.0%
█ good	36.8%	31.6%
█ very good	9.8%	13.1%

Gwynedd flats by hot water heating energy efficiency

Hot water heating energy efficiency	Gwynedd	England & Wales
█ very poor	21.3%	14.2%
█ poor	8.6%	6.7%
█ average	14.0%	13.8%
█ good	50.1%	57.0%
█ very good	6.0%	8.3%

Gwynedd flats by lighting energy efficiency

Lightning energy efficiency	Gwynedd	England & Wales
█ very poor	8.6%	12.5%
█ poor	4.8%	6.0%
█ average	11.1%	11.4%
█ good	13.5%	13.9%
█ very good	62.1%	56.2%