More than half of homes in Carlisle have been given an energy efficiency rating of 'D' or below, figures show.
Houses and other buildings are given an efficiency rating of A to G, based on numerous factors – such as levels of insulation, the type of central heating used, and how modern the building's lightbulbs are.
Figures from the Office for National Statistics show 57 per cent of households in Carlisle were living in homes with a rating of 'D' or below as of March.
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The average energy efficiency rating for the area is 67 out of 100 – just below the average of 68 across England.
Ratings are generally only given when homes are bought, sold or rented – with these figures only for homes that have received ratings in the past 10 years.
The figures further show the average home in Carlisle produced an estimated 3.4 tonnes of carbon dioxide in the year to March.
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