How long will a BER remain valid?

A BER for a building will be valid for 10 years from the date of its being issued, unless there is a material change in the building in the meantime which could affect its energy performance – for example an extension to the building, a significant change to the building fabric or a change in the heating system or fuel used. Therefore if a property which has received a BER is placed on the market within 10 years of that BER being issued, and the property has experienced no relevant alteration in the meantime, then that same BER may be used by the building owner for the purposes of meeting their obligations under the Regulations.