England · Statutory guidance
Conservation of fuel and power: Approved Document L, Volume 2 — Buildings other than dwellings
Energy performance guidance for non-domestic buildings, covering fabric, services, controls and commissioning.
- Edition
- 2021 edition incorporating 2023 amendments · Volume 2; later editions and transitions on source page
- Search coverage
- 116 of 116 PDF pages · 2 OCR pages
Energy & sustainability
Open original PDF at page 10 Source wording and page order preserved. Drawings and table layouts remain available in the original PDF.
O N L I N E V E R S I O N
Regulation 28: Consequential improvements to energy performance 81
Intention 81
Section 12: Consequential improvements 82
Consequential improvements which apply when extending a building 82
Consequential improvements on installing or extending the capacity of fixed building services 83
Appendix A: Key terms 84
Appendix B: Lighting Energy Numeric Indicator (LENI) 91
Appendix C: Reporting evidence of compliance 93
BRUKL report 93
Appendix D: Measures for consequential improvements 94
Appendix E: Hierarchy for establishing seasonal efficiencies of existing boilers 97
Appendix F: Standards referred to 98
Appendix G: Documents referred to 100
Legislation 100
Documents 100
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Approved Document L Volume 2, 2021 edition Building Regulations 2010
O N L I N E V E R S I O N
Edition and local adoption determine which requirements apply. Use the publisher’s document for the complete clauses, diagrams and amendments.