Existing build domestic properties:

Each Energy Performance Certificate includes an energy efficiency rating that indicates the overall efficiency rating of a home. The higher the rating, the more energy efficient it is. The report will also make recommendations, for example installation of double glazing, which will help improve the home’s rating.

Environmental carbon dioxide (CO2) impact rating


The certificate also includes an environmental CO2 rating which indicates your home's impact on the environment in terms of carbon dioxide emissions as well as the potential for improvement. The higher the rating, the less impact it has on the environment.

The average property in the UK falls within bands D-E for both ratings. Each rating is based on the performance of the building itself and its services (such as heating and lighting), rather than the domestic appliances within it e.g. washing machines etc. The certificate also takes into account the age, location, size and condition of the building when providing a rating and suggesting improvements.
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