SAP Calculation and EPC

You will need a SAP calculation for a residential building at Design Stage and again at As-Built Stage once the construction is complete. Making changes mid-build can impact the final calculation so getting the specification on your development right first time is important.

What is a SAP?

A SAP (Standard Assessment Procedure) is required for all new build residential buildings. It is a calculation that checks compliance with CO2 targets for your design.

The SAP assessment is created using design drawings and is checked against building regulations (Approved Document Part L in England and Wales, and Technical Handbook Section 6 in Scotland). To show compliance on new builds, the Dwelling Emission Rate (DER) must be equal to or lower than the Target Emission Rate (TER). The Design Fabric Energy Efficiency (DFEE) rating must also be equal to or less than the Target Fabric Energy Efficiency (TFEE) rating.

The SAP software is used to produce an Energy Performance Certificate (EPC) once the air testing has been carried out at the end of the project. The EPC is required before you can sell or rent the completed building.

A SAP may also be required for existing residential buildings that are being extended or renovated.

Standard Assessment Procedure

SAP is a technique that the UK government employs to gauge how a building performs in terms of energy efficiency. It is the measure that the environment uses to tell if a construction project is in compliance with the Part L of the Building Regulations. The construction industry has been subject to the process since the ’90s when it was developed to contribute towards the energy policies put forward by the Department of Environment. Complete Sustainability Solutions aims to provide your project with the expertise it needs to ensure adherence to SAP assessment. SAP has to be conducted in the design stage of the construction project so that you have to get professionals who can complement your vision. We have SAP assessors with years of experience. Our professionals have worked in various types of projects and understand the requirement of each one. Whether you are setting up an apartment building or single-family homes, we have the right team to help with your SAP assessment.