A domestic EPC is required by law when a building is sold, rented out or constructed. If you are a homeowner who is not looking to sell your property, an EPC is not mandatory but very useful to assist you in determining the energy efficiency of your property. If on the other hand, you are looking to sell your property, a valid EPC is a requirement.
The current MEES requirements mean that landlords with properties which require an EPC cannot start new tenancies in England and Wales in properties with a rating lower than E. From April 2020, all existing tenancies which require an EPC will need to have a minimum E rating.