The Commercial Energy Performance Certificates (EPC’s) has become a very important certificate to have n the property and construction industry and from January 4th in 2009 is has become an essential requirement. The European Energy Performance of Buildings Directive (EPBD) demands that these Commercial EPC’s will need to be presented at the point of marketing, selling, leasing or construction for all non-dwellings. The certificate covers all types of buildings from shops to small offices, industrial units and large commercial buildings such as train stations and airports. Building Control is responsible for enforcing these changes in the newly built properties and it’s the Trading Standards department responsibility to enforce certificates on existing buildings. These legislative requirements mean that every part of the build needs to be monitored and accessed, so the build will comply with the Commercial EPC.