Cardiff flat energy efficiency

June 2023

Flats are energy-efficient. The average flat energy rating in Cardiff postcode area is 70.1, C rating. This is by 0.7 better score than the average flat energy rating in England and Wales. The average potential rating is 76.7, C rating.

Cardiff flats by energy rating

Energy rating	Cardiff	England & Wales
█ A	0.2%	0.1%
█ B	15.4%	17.3%
█ C	67.6%	63.1%
█ D	7.3%	8.1%
█ E	7.6%	9.0%
█ F	1.4%	1.8%
█ G	0.5%	0.6%

Cardiff flats by potential energy rating

Potential energy rating	Cardiff	England & Wales
█ A	0.2%	0.1%
█ B	26.5%	27.1%
█ C	70.1%	68.5%
█ D	1.7%	2.2%
█ E	1.1%	1.6%
█ F	0.3%	0.4%
█ G	0.2%	0.1%

Cardiff flats by main heating control energy efficiency

Main heating control	Cardiff	England & Wales
█ very poor	6.8%	5.2%
█ poor	11.1%	15.2%
█ average	25.9%	25.3%
█ good	52.6%	51.0%
█ very good	3.6%	3.3%

Cardiff flats by main heating energy efficiency

Main heat efficiency	Cardiff	England & Wales
█ very poor	17.2%	14.1%
█ poor	4.0%	4.8%
█ average	10.6%	12.2%
█ good	64.2%	62.1%
█ very good	4.0%	6.7%

Cardiff flats by walls energy efficiency

Walls efficiency	Cardiff	England & Wales
█ very poor	19.4%	22.9%
█ poor	14.5%	14.6%
█ average	7.3%	7.8%
█ good	46.3%	39.9%
█ very good	12.6%	14.8%

Cardiff flats by windows energy efficiency

Windows efficiency	Cardiff	England & Wales
█ very poor	2.6%	9.7%
█ poor	2.2%	3.6%
█ average	46.7%	42.0%
█ good	38.1%	31.6%
█ very good	10.3%	13.1%

Cardiff flats by hot water heating energy efficiency

Hot water heating energy efficiency	Cardiff	England & Wales
█ very poor	14.3%	14.2%
█ poor	5.2%	6.7%
█ average	14.7%	13.8%
█ good	59.5%	57.0%
█ very good	6.2%	8.3%

Cardiff flats by lighting energy efficiency

Lightning energy efficiency	Cardiff	England & Wales
█ very poor	11.1%	12.5%
█ poor	6.8%	6.0%
█ average	12.9%	11.4%
█ good	14.2%	13.9%
█ very good	54.9%	56.2%