Energy Performance Certificates (EPC) are needed whenever your property is:
You must order an EPC for potential buyers and tenants before you market your property to sell or rent.
An EPC contains:
information about a property’s energy use and typical energy costs
recommendations about how to reduce energy use and save money
An EPC gives a property an energy efficiency rating from A (most efficient) to G (least efficient) and it is valid for 10 years.