Guidance for contractors on how to make buildings as energy efficient as possible.
Documents
![](/sites/default/files/styles/file_thumb/public/publication-doc-thumbnails/Approved_document_part_L__volume_1.jpg?itok=mVQn07mJ)
Approved document part L: volume 1 , file type: PDF, file size: 1 MB
PDF
1 MB
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![](/sites/default/files/styles/file_thumb/public/publication-doc-thumbnails/Approved_document_part_L__volume_2.jpg?itok=jMW72VMF)
Approved document part L: volume 2 , file type: PDF, file size: 2 MB
PDF
2 MB
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![](/sites/default/files/styles/file_thumb/public/publication-doc-thumbnails/Home_energy_guide_template.jpg?itok=QimBYNR5)
Home energy guide template , file type: PDF, file size: 287 KB
PDF
287 KB
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![](/sites/default/files/styles/file_thumb/public/publication-doc-thumbnails/Approved_software_programmes__Part_L_2022__1.jpg?itok=6OXH4Pkx)
Approved software programmes (Part L 2022) , file type: PDF, file size: 104 KB
PDF
104 KB
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![](/sites/default/files/styles/file_thumb/public/publication-doc-thumbnails/Notice_of_Approval_of_the_methodologies_of_calculation_of_the_energy_performance_buildings.jpg?itok=GM7sDxiq)
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.