SAP 10.3: Government's Standard assessment procedure for energy rating of dwellings: Version 10.3 (12-06-2026)
Publication Year
2026
Document Status
Current
Abstract
Sets out the Government's Standard assessment procedure (SAP) used for assessing the energy performance of dwellings. Uses the following indicators: fabric energy efficiency (FEE), energy cost rating (the SAP rating), carbon dioxide emissions and primary energy, and building regulations and associated metrics.
Document History
SAP Version 10.3, dated 12/06/2026. Approved methodology for demonstrating compliance with the Building Regulations in England from 24 March 2026. Adoption in Wales, Scotland and Northern Ireland is subject to separate regulatory requirements. SAP 10.2 may remain applicable in some devolved administrations and legacy projects. Consult the relevant national building regulations guidance before use. Published on behalf of DESNZ by BRE.
Publisher Information
Department for Energy Security and Net Zero
The Department for Energy Security and Net Zero is a government ministerial department whose responsibilities cover security of energy supply, energy markets, energy efficiency and net zero. Previously known as the Department for Business, Energy and Industrial Strategy.
