SAP Calculations in Bolton

We employ some of the most highly qualified and experienced surveyors in the business, enabling us to provide SAP reports on all types of residential property, however complex.

SAP stands for ‘Standard Assessment Procedure’ and is the calculation of predicted energy use and resulting carbon dioxide emissions from a dwelling. It is used as the main compliance tool for Building Regulations Part L1A, to satisfy Criterion 1 and provides information to satisfy Criterion 2 and Criterion 3. It is also used to produce the Energy Performance Certificate (EPC) for the completed dwelling. The SAP calculation is based on the energy balance of the dwelling over the course of a year taking into account a range of factors that contribute to energy efficiency, and is based on a standardised occupancy profile.

The SAP Calculation will demonstrate to Building Control that your building has been designed and constructed in compliance with the appropriate energy efficiency requirements of for new-build dwellings.

A SAP Calculation is carried out at the two stages, initially in the design and then construction of a new dwelling:

At Design Stage, with a submission to Building Control before work starts on site.
At As Built Stage, with a final submission on completion of the dwelling.

The two submissions can be used by Building Control to check compliance with required targets. A clear connection must be evident between product specifications and the data inputs into the SAP software. The As Built submission is required to produce the EPC for the completed dwelling.