This tenth edition of the most popular and trusted guide reflects all the latest amendments to the Building Regulations, planning permission and the Approved Documents in England and Wales.This includes coverage of the recent changes to use classes, updated sections on planning permission, permitted development and application fees.We have included the revisions to Approved Document B (as a result of the Hackitt Review), as well as the latest changes to Approved Documents F and L, and the new documents O (overheating) and S (electric vehicle charging points), which come into effect in June 2022. Giving practical information throughout on how to work with (and within) the Regulations, this book enables compliance in the simplest and most cost-effective manner possible.The no-nonsense approach of Building Regulations in Brief cuts through any confusion and explains the meaning of the Regulations.Consequently, it has become a favourite for anyone working in or studying the building industry, as well as those planning to have work carried out on their home.It is essential reading for all building contractors and subcontractors, site engineers, building engineers, building control officers, building surveyors, architects, construction site managers and DIYers.