In most cases, it will be necessary when extending a building to ensure that everything done complies with the Government's Building Regulations. Unless the planned extension is a porch, conservatory or detached garage built at ground level, taking up less than 30m2 of floor space, it's likely that Building Regulations will be relevant.

These apply to any building work in England and Wales, and set minimum standards for the design and construction of buildings to ensure that they comply with health and safety rules. They also include certain requirements involving fuel and power conservation, and ensure that access and facilities are provided for people with disabilities in public buildings.

A reputable architect/building design company will be able to help you in ensuring that your extension meets all the Building Regulations that may apply to the work, and in making sure that any inspections required are completed and work meets the construction and performance standards set by the regulations.

Building Regulations approval is a separate process from obtaining planning permission for your extension, and it is extremely important to ensure that your extension is approved in both regards. To achieve compliance with Building Regulations, you or your architect/designer must submit full and detailed plans of the proposed extension, together with the appropriate application form and fee, to your Local Planning Authority..

Building control surveyors will examine the plans to guarantee that they accord with Building Regulations, and will approve the project. Your builders are required to notify the council when building work commences and at various stages throughout the project, and inspections can be made to ensure that work, such as laying foundations, damp proofing and installing drains is carried out to standard. A final inspection will be made upon completion of the extension, and a certificate of completion will be issued if everything is up to scratch.

Information about how Building Regulations might apply to different types of extensions can be found through the Government's Planning Portal (a link can be found from this site), or via your Local Authority.

Information correct as at time of upload (or print) March 2009.The information provided should be used as a guide only. homextendesign does not take any responsibility for information provided and it is advised that customers seek advice through our contact section.