Conservation of fuel and power: Approved Document L, Volume 1 — Dwellings

O N L I N E V E R S I O N B Appendix B: Reporting evidence of compliance BREL report B1 The Buildings Regulations England Part L (BREL) report and photographic evidence should be provided to the building control body and to the building owner to show that building work complies with energy efficiency requirements. B2 SAP 10 will produce the BREL report for the building as a standard output option. B3 Two versions of the BREL report should be produced, using the approved software. a. The first, the design stage BREL report, before works begin, to include all of the following. i. The target primary energy rate and dwelling primary energy rate. ii. The target emission rate and dwelling emission rate. iii. The target fabric energy efficiency rate and dwelling fabric energy efficiency rate. iv. A supporting list of specifications. b. The second, the as-built BREL report, to include all of the following. i. The target primary energy rate and as-built dwelling primary energy rate. ii. The target emission rate and as-built dwelling emission rate. iii. The target fabric energy efficiency rate and as-built dwelling fabric energy efficiency rate. iv. A supporting list of specifications and any changes to the list of specifications that was provided at design stage. The building control body can then use these reports to help check that what was designed has been built. The software includes a facility to compare the design stage and as-built data input files and automatically produce a schedule of changes. B4 The as-built BREL report should be signed by the person carrying out the SAP assessment to confirm that the as-built calculations are accurate and that the supporting documentary evidence and photographs have been reviewed (see paragraphs B6 and B7). B5 The as-built BREL report should be signed by the developer to confirm that the dwelling has been constructed or completed according to the specifications in the report. 78 Approved Document L Volume 1, 2021 edition Building Regulations 2010 O N L I N E V E R S I O N