Energy performance certificates (EPCs)

Energy performance certificates are necessary for anyone selling or renting out a domestic property or commercial building and measures the energy efficiency.

Energy performance certificates (EPCs) will allocate to the property a rating from A (very efficient) to G (inefficient) and gives the bill payer an idea of what electricity and heating will cost them and what the carbon dioxide emissions will be like. The average rating received among properties assessed is currently at D/E, with new homes likely to have a better rating.

The certificate will also state what the energy efficiency rating could be if improvements are made and highlights cost-effective ways to achieve a better rating. The EPC will also advise on simple measures that can be taken, such as switching to energy-efficient light bulbs.

Certain buildings don’t need an EPC. These include:

  • places of worship
  • temporary buildings that will be used for less than two years
  • stand-alone non-residential buildings with total useful floor space of less than 50 square metres
  • industrial sites, workshops and non-residential agricultural buildings that don’t use a lot of energy
  • some buildings that are due to be demolished
  • holiday accommodation that’s rented out for less than four months a year or is let under a licence to occupy.

For more information and to assess the EPC register go online to