The BREL photographic
evidence requirements.

To ensure compliance with Part L of the Building Regulations in England, a signed Buildings Regulations England Part L (BREL) report, alongside a comprehensive collection of photographs, is now mandatory. This vital documentation serves as proof that the construction adheres to the stringent standards set out in Part L.

The process begins with the developer's signature on the as-built BREL report before construction begins, confirming that the designs align with regulatory requirements. During construction, a meticulous photographic record must be maintained as detailed in Appendix B. This visual evidence is critical for showing compliance in key areas such as thermal continuity in foundations, insulation continuity at junctions and penetrations, airtightness details, and labelled building services.

For every unique construction detail of the property, at least one photograph should be taken. Where greater clarity is needed, additional close-up images should be included.

This photographic documentation is vital at different stages of the build and must be forwarded to the SAP Assessor for review. Once satisfied that construction has been carried out correctly and in line with the design standards, the SAP Assessor can complete their SAP Assessment and produce the Energy Performance Certificate (EPC) for the property.

By following these procedures, developers demonstrate due diligence and a commitment to energy-efficient building practices, as required under the Building Regulations England Part L.

Photographs must be taken for each plot's thermal junctions. They can be taken by anyone dealing with the project on site, but ideally a responsible person. These photos are required for sign-off, but are not for building control to carry out — they link back to the as-built BREL and the as-built SAP.

Photographs need to be unique to each property, with one photograph recorded per detail, and close-up images added wherever greater clarity is needed. Every photo should be geolocated and carry a date and time stamp.