Garage conversions should be sub sect to building control in the vast majority of cases. If a builder tells you it’s not then we would strongly recommend getting a second opinion. There are some exceptions of course, and these are legitimate, but we do encourage you to check that your work is legal and certified. Building Regulations are set standards for the design and construction of buildings to ensure the health and safety for people in or around those buildings. They also include requirements to ensure that fuel and power is conserved and that facilities are provided for people, including those with disabilities, to access and move around inside buildings. For a garage conversion we include all building control inspections and certification as part of the quotation price. This will help ensure that your home improvement is safe, energy efficient and legal.