Four per cent of the UK’s GHG emissions come from buildings of which 22% comes from non-domestic buildings, that’s a staggering 20 MtCO2e. The volume of ‘leaked’ CO2 from a building is calculated during the Energy Performance Rating and is stated on the Energy Performance Certificate (EPC) of the building. As of 1st April 2027 to a minimum of a C rating.

What is an EPC ratng and how is a building rated?

An EPC assessment evaluates a property’s energy efficiency and carbon emissions. A qualified and accredited assessor inspects the age, construction and size of the building, along with internal components such as windows, lighting and heating sources. Using this data and following calculations, the assessor provides the property with an EPC rating along with possible improvements. Properties, both domestic and non-domestic, are rated between A+ (best) to G (worst). A higher EPC rating leads to significant cost savings and reduced carbon emissions, reducing the environmental impact of the building.

With a large company footprint spanning the whole of the UK, Greenham are determined to improve the energy efficiency of our buildings to support further reduction in Scope 1 emissions. That is why we ensured energy efficiency and sustainability was at the forefront when designing our new South Coast Service Centre. Our new service centre comprises of state-of-the-art insulated cladding providing a thermal U-value of 0.27 W/m2k and a photovoltaic system generating 73.55 KW/M2, all leading to a building emission rate of -7.91 kgCO2/m2 per year and gaining an EPC rating A+.