Last edited 15 Oct 2020

Non-domestic building services compliance guide

The Non-Domestic Building Services Compliance Guide provides guidance for the installation of fixed building services in new and existing non-domestic buildings to help achieve compliance with the energy efficiency requirements of the building regulations.

It is published by the government and provides more detailed information on the guidance contained in Approved Document L2A: Conservation of fuel and power in new buildings other than dwellings, and Approved Document L2B: Conservation of fuel and power in existing buildings other than dwellings

The latest version was published in 2013 and came into effect in April 2014. It is concerned with the design, installation and commissioning of:

It sets out recommended minimum energy efficiency standards for components of building services systems. For systems installed in new buildings, the standards are design limits. For new or replacement systems and components installed in existing buildings, the standards represent reasonable provision for complying with the building regulations.

It also provides supplementary information regarding good practice that exceeds the minimum standards, such as Microgeneration Certification Scheme standards.

The structure of the guide is:

The European directives that set the framework governing fixed building services include:

See also: Domestic building services compliance guide.

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