An Energy Performance Certificate (EPC) records the energy efficiency rating of a building on a scale from A (most efficient) to G (least efficient). It also recommends improvements that could raise the rating, such as wall insulation, a more efficient boiler or heating system, or better glazing.
In the UK an EPC is generally required when a building is constructed, sold or let, and it is valid for ten years. Newly built homes usually achieve high ratings because of current Building Regulations, while older, unimproved housing tends to rate lower. Minimum energy efficiency standards restrict the letting of poorly rated property in England and Wales, so the EPC rating can affect the value of an asset and the scope of refurbishment works. For the QS, a target rating can drive specification decisions on insulation, glazing, heating and renewables, so it should be agreed early and reflected in the cost plan.
Related terms: Building Regulations, Retrofit, Life Cycle Costing.
