Summary

1.1 This approved document is one of four approved documents that give guidance on how to comply with the energy efficiency requirements of the Building Regulations:

Approved Document L1A: Conservation of fuel and power in new dwellings

Approved Document L1B: Conservation of fuel and power in existing dwellings

Approved Document L2A: Conservation of fuel and power in new buildings other than dwellings

Approved Document L2B: Conservation of fuel and power in existing buildings other than dwellings

The approved documents are supported by the:

Domestic Building Services Compliance Guide

Non-Domestic Building Services Compliance Guide

1.2 This approved document contains the following sections:

Section 1 sets out the relevant legal requirements and provides an overview of the steps to demonstrate compliance.

Section 2 sets out the considerations that apply to demonstrating that the design of the building will meet the energy efficiency requirements.

Section 3 sets out the considerations that apply when demonstrating that the design has been appropriately translated into actual construction performance.

Section 4 describes the information that should be provided to occupiers to help them achieve reasonable standards of energy efficiency in practice.

Section 5 provides a pointer to some useful information on different design approaches to meeting the energy efficiency requirements

Appendix A: Key terms and abbreviations

Appendix B: Guidance on the types of building work covered by this approved document

Appendix C: Reporting evidence of compliance

Appendix D: Documents referred to

Appendix E: Standards referred to

Energy performance certificates

1.3 Regulation 7A of the Energy Performance of Buildings (England and Wales) Regulations 2012 requires that when a dwelling is erected the person carrying out the work must give an energy performance certificate to the owner of the building and a notice to the building control body (BCB) that a certificate has been given including the reference number under which the certificate has been See also the Energy Performance of Buildings (England and Wales) Regulations 2012 (SI 2012/3118) at www.legislation.gov.uk and detailed guidance on energy performance certificates at www.gov.uk

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