The Standard Assessment Procedure (SAP Calculation) is the UK Government’s approved methodology for calculating the energy performance of new built of converted dwellings.
For compliance with Building Regulations PART L 2010, SAP calculations are required for all new dwellings together with the ones that have been created through material changes of use involving building work and extensions over certain sizes (consult with your building control authority for this requirement).
A SAP EPC report is generated through the use of Government Approved...