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Guidance for contractors on how to make buildings as energy efficient as possible.

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First published:
14 June 2016
Last updated:

Documents

Approved document part L: volume 1 , file type: PDF, file size: 1 MB

PDF
1 MB
If you need a more accessible version of this document please email digital@gov.wales. Please tell us the format you need. If you use assistive technology please tell us what this is.

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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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.