Guidance for contractors on how to make buildings as energy efficient as possible.
Documents
Approved document part L: volume 1 , file type: PDF, file size: 1 MB
PDF
1 MB
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Approved document part L: volume 2 , file type: PDF, file size: 2 MB
PDF
2 MB
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Home energy guide template , file type: PDF, file size: 287 KB
PDF
287 KB
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Approved software programmes (Part L 2022) , file type: PDF, file size: 104 KB
PDF
104 KB
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Notice of Approval of the methodologies of calculation of the energy performance buildings , file type: PDF, file size: 118 KB
PDF
118 KB
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Details
Approved document part L: volume 1 takes effect on 23 November 2022. Approved document part L: volume 2 takes effect on 29 March 2023.
For archived Part L 2014 related documents, see Archived building regulations approved documents.