Cornwall flat energy efficiency

January 2026

Flats are energy-inefficient. The average flat energy rating in Cornwall county is 66.5, D rating. This is by 3.4 worse score than the average flat energy rating in England and Wales. The average potential rating is 75.0, C rating.

Cornwall flats by energy rating

Cornwall flats by energy rating
Energy ratingCornwallEngland & Wales
█ A0.1%0.1%
█ B16.6%17.4%
█ C55.6%64.6%
█ D7.9%7.7%
█ E13.7%8.2%
█ F4.3%1.6%
█ G1.8%0.5%

Cornwall map of energy efficiency of flats

Cornwall map of energy efficiency of flats

Cornwall flats by potential energy rating

Cornwall flats by potential energy rating
Potential energy ratingCornwallEngland & Wales
█ A0.2%0.1%
█ B23.9%27.1%
█ C69.1%68.9%
█ D2.6%2.0%
█ E3.0%1.4%
█ F0.9%0.3%
█ G0.3%0.1%

Cornwall flats by main heating control energy efficiency

Cornwall flats by main heating control energy efficiency
Main heating controlCornwallEngland & Wales
█ very poor2.8%4.7%
█ poor22.1%14.1%
█ average18.3%24.0%
█ good49.7%54.1%
█ very good7.1%3.1%

Cornwall flats by main heating energy efficiency

Cornwall flats by main heating energy efficiency
Main heat efficiencyCornwallEngland & Wales
█ very poor17.9%14.6%
█ poor8.1%4.4%
█ average23.4%12.2%
█ good46.0%62.8%
█ very good4.6%5.9%

Cornwall flats by walls energy efficiency

Cornwall flats by walls energy efficiency
Walls efficiencyCornwallEngland & Wales
█ very poor19.4%21.9%
█ poor11.6%14.7%
█ average8.2%8.9%
█ good45.2%39.4%
█ very good15.7%15.2%

Cornwall flats by windows energy efficiency

Cornwall flats by windows energy efficiency
Windows efficiencyCornwallEngland & Wales
█ very poor8.4%8.9%
█ poor4.6%4.4%
█ average38.2%42.0%
█ good37.6%31.7%
█ very good11.1%12.9%

Cornwall flats by hot water heating energy efficiency

Cornwall flats by hot water heating energy efficiency
Hot water heating energy efficiencyCornwallEngland & Wales
█ very poor26.0%14.2%
█ poor8.7%6.6%
█ average16.9%13.5%
█ good43.0%58.3%
█ very good5.4%7.4%

Cornwall flats by lighting energy efficiency

Cornwall flats by lighting energy efficiency
Lightning energy efficiencyCornwallEngland & Wales
█ very poor8.9%10.8%
█ poor5.0%5.4%
█ average9.9%10.2%
█ good13.7%13.9%
█ very good62.4%59.8%

Plumplot area insights - interactive charts and maps

Plumplot area insights - interactive maps and charts

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