EPBD Implementation -- how does it impact homes vs commercial buildings?

"The Directive itself makes no distinction between the two. There will need to be some practical differences - for example the methodology for certification will need to be different to reflect differences in the way in which homes and commercial property are built and used, but wherever possible we are seeking to minimise the differences. We have already developed a detailed approach for the Energy Performance Certificate that forms part of the HIP for the marketed sales of dwellings. Wherever relevant this will form the model that will be applied in other sectors, such as private rented dwellings, social housing and commercial buildings."
-- CLG (www.communities.gov.uk)