SAP calculations explained in clear, practical terms for self-builders. The Standard Assessment Procedure is the government’s methodology for assessing the energy performance of new dwellings, and a satisfactory result is required for Building Regulations compliance.
This guide explains what goes into a SAP calculation, when the assessment is needed and how insulation, glazing and heating choices affect the outcome. If you need a shorter introduction first, see What Is a SAP Calculation?. For the current methodology and transition information, consult the official Standard Assessment Procedure guidance.
SAP Calculations Explained
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Understand how a SAP calculation assesses a new home’s energy performance, when it is required and which design decisions most affect compliance.
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SAP calculations explained in clear, practical terms for self-builders. The Standard Assessment Procedure is the government’s methodology for assessing the energy performance of new dwellings, and a satisfactory result is required for Building Regulations compliance.
This guide explains what goes into a SAP calculation, when the assessment is needed and how insulation, glazing and heating choices affect the outcome. If you need a shorter introduction first, see What Is a SAP Calculation?. For the current methodology and transition information, consult the official Standard Assessment Procedure guidance.
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