A SAP Calculation Preston for a new build dwelling will involve of 2 main stages.
New Build Design SAP Calculations Preston - The intended design for the dwelling which is agreed between the SAP assessor and the client. This design once agreed needs to be followed all the way through to the completion stage. Any proposed changes to the design need to be checked with the SAP Assessor prior to them being carried out. This is to avoid any unnecessary remedial work having to be carried out to ensure that the dwelling will comply with building regulations. More details on the requirements for new builds can be found in Approved Document L1A
As Built SAP Calculation Preston and Energy Performance Certificate Preston - The updated SAP calculation Preston which reflects exactly how the dwelling was constructed. When this has been determined the Energy Performance Certificate Preston can be lodged.