What is EPC Rating (A-G Scale)?

An Energy Performance Certificate (EPC) rating is an A-to-G assessment of a property's energy efficiency, produced by an accredited energy assessor. The rating is based on a SAP score: A is most efficient (92+) and G is least (1-20). EPCs are legally required when a property is built, sold or rented and are valid for 10 years, though a new assessment can be commissioned sooner if improvements have been made. The rating directly affects rental eligibility under MEES regulations, influences mortgage products and green finance eligibility, and gives buyers and tenants an indication of future energy costs.