What an EPC is

An Energy Performance Certificate (EPC) shows how energy-efficient a property is.

It gives a rating from 'A' (most efficient) to 'G' (least efficient). 

It also includes a recommendations report with:

• possible improvements to reduce energy use
• a potential rating if you make those improvements

There are different EPCs for domestic properties and non-domestic properties.

Domestic properties

For domestic properties, an EPC shows the:

• ‘Energy Efficiency Rating' and typical energy costs (but costs will vary with how each person uses energy)
• 'Environmental Impact Rating' – how much the building affects the climate with CO2 emissions

Non-domestic properties

For non-domestic properties, an EPC shows the 'Energy Performance Rating', which is how much the building affects the environment with CO2 emissions.