SAP 10.3: Government's Standard assessment procedure for energy rating of dwellings: Version 10.3 (12-06-2026)

Department for Energy Security and Net Zero, 2026
SAP 10.3: Government's Standard assessment procedure for energy rating of dwellings: Version 10.3 (12-06-2026) Download document

Document Status

Current

Supplement

Core Supplement

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.

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.

Subjects

  • Building types
  • Housing/residential facilities
  • Special subject areas
  • Environmental issues/energy
  • Energy efficiency/Energy Management

Publisher History

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.

Information

NBS

NBS has produced specification systems and information products for construction industry professionals for more than 40 years. The National Building Specification is the recognised UK national standard and is used by over 5,000 organisations. NBS is part of RIBA Enterprises Ltd.

Accuris

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