Devon flat energy efficiency

January 2026

Flats are energy-inefficient. The average flat energy rating in Devon county is 67.1, D rating. This is by 2.8 worse score than the average flat energy rating in England and Wales. The average potential rating is 75.2, C rating.

Devon flats by energy rating

Energy rating	Devon	England & Wales
█ A	0.1%	0.1%
█ B	13.3%	17.4%
█ C	61.6%	64.6%
█ D	8.9%	7.7%
█ E	12.0%	8.2%
█ F	3.0%	1.6%
█ G	1.0%	0.5%

Devon flats by potential energy rating

Potential energy rating	Devon	England & Wales
█ A	0.2%	0.1%
█ B	21.5%	27.1%
█ C	72.7%	68.9%
█ D	2.4%	2.0%
█ E	2.3%	1.4%
█ F	0.7%	0.3%
█ G	0.2%	0.1%

Devon flats by main heating control energy efficiency

Main heating control	Devon	England & Wales
█ very poor	2.6%	4.7%
█ poor	18.9%	14.1%
█ average	25.3%	24.0%
█ good	49.6%	54.1%
█ very good	3.6%	3.1%

Devon flats by main heating energy efficiency

Main heat efficiency	Devon	England & Wales
█ very poor	11.9%	14.6%
█ poor	6.6%	4.4%
█ average	18.1%	12.2%
█ good	58.9%	62.8%
█ very good	4.6%	5.9%

Devon flats by walls energy efficiency

Walls efficiency	Devon	England & Wales
█ very poor	24.5%	21.9%
█ poor	17.8%	14.7%
█ average	8.1%	8.9%
█ good	39.3%	39.4%
█ very good	10.3%	15.2%

Devon flats by windows energy efficiency

Windows efficiency	Devon	England & Wales
█ very poor	8.5%	8.9%
█ poor	5.7%	4.4%
█ average	46.1%	42.0%
█ good	32.3%	31.7%
█ very good	7.4%	12.9%

Devon flats by hot water heating energy efficiency

Hot water heating energy efficiency	Devon	England & Wales
█ very poor	17.2%	14.2%
█ poor	6.2%	6.6%
█ average	15.8%	13.5%
█ good	53.1%	58.3%
█ very good	7.6%	7.4%

Devon flats by lighting energy efficiency

Lightning energy efficiency	Devon	England & Wales
█ very poor	9.8%	10.8%
█ poor	6.0%	5.4%
█ average	10.9%	10.2%
█ good	14.9%	13.9%
█ very good	58.4%	59.8%

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