Part L - Conservation of fuel and power

The Building Compliance guides provide guidance on complying with Building Regulations requirements for space heating and hot water systems, mechanical ventilation, comfort cooling, fixed internal and external lighting and renewable energy systems.

The compliance guides have now been archived; they are no longer the most up-to-date statutory guidance. They are available on the national archives website¹.

1. https://webarchive.nationalarchives.gov.uk/ukgwa/20190213060753/https:/www.gov.uk/government/publications/conservation-of-fuel-and-power-approved-document-l