The methodology intends to shape the best practice building into a single universal building specification that could be seen as best practice across all countries. Therefore energy performance is compared purely on physical information of buildings and relevant building systems.
The BREEAM Best Practice Specification is used only to calibrate how credit scoring in Ene 01 is calculated for each country, allowing comparability between buildings.
Where typical best practice differences exist between different building types, like for like comparisons are retained for buildings within each building type.