This section covers the technical guidance contained in Part L (Approved Document L) of schedule 1 of the Building Regulations.
It covers the requirements with respect to Conservation of fuel and power.
Follow the links from this page to access the approved document, details of any previous appeals and determinations and further information relating to this part.
Download the latest version of the Approved Document or view archived copies of previous versions
Download documents relating to the Part L changes that come into effect in April 2014.
The Building Regulations are underpinned by research which aims to provide a sound scientific basis to the requirements and guidance relating to each of the technical parts.
Before bringing into effect changes to the technical requirements, or the supporting Approved Document(s), of the Building Regulations, Government seeks views on the proposed changes through a formal consultation process.
Government departments assess the likely outcomes of regulating in order to try to achieve the right balance between under-regulating, which may fail to protect the public, and over-regulating, which may create excessive bureaucracy. Since 1998, the
This section provides answers to frequently asked questions (FAQs) about Part L of the Building regulations.
The Secretary of State for Building Regulations may issue decisions on applications for determinations of compliance with the technical requirements of the Building Regulations, or appeals against a local authority's refusal to relax a requirement.
To assist with meeting the Requirements of Part L (Conservation of fuel and power) there are a number of tools and documents available by following the links here.