Commercial Energy Performance Certificate

What are Commercial Energy Performance Certificates?

Energy Performance Certificates are required for most non-domestic commercial buildings being sold, rented or constructed. Alterations resulting in the addition or removal of parts of the building and also installation/modification of Heating, Ventilation and Air Conditioning (HVAC) systems may also require an EPC.


The certificate records how energy efficient a property is as a building and provides A-G ratings.


Certificates are produced using standard methods and assumptions about energy usage in order that the energy efficiency of one building can easily be compared with another building of the same type. 


This allows prospective buyers, tenants, owners, occupiers and purchasers to access information as to the energy efficiency and carbon emissions from a building in order to consider energy efficiency and fuel costs as part of any investment.


A CEPC is always accompanied by a recommendation report that lists cost effective measures (such as low and zero carbon generating systems) to improve the energy rating. A rating is also given showing what could be achieved if all the recommendations were implemented.

When is a CEPC Required?

For Sale or Rental - As soon as the building is offered for sale or rent the seller or landlord must make an EPC available to prospective buyers or tenants. 


The Energy Performance Certificate may be for the whole building or individual units.

Which buildings are exempt?

  • Places of worship
  • Stand-alone building of less than 50 square meters (except for dwellings)
  • Temporary buildings with a planned time of use of 2 years or less Particular building with   a low energy demand (e.g. barns)
  • In some circumstances buildings to be demolished are exempt from requiring a certificate
  • An EPC is not required for any (off-plan) sales or letting before the construction of the building has been completed.

How much does it cost?

Commercial Energy Performance Certificates need to be quoted individually for each enquiry. 


This is due to the differing complexity of the buildings and also the amount of data that needs to be gathered during the site survey.


A commercial (non-domestic) EPC is valid for ten years.