Self-build businesses provide products and services for people creating a home to their own brief, either by managing the project themselves or employing professionals to do so. They may help with early-stage feasibility, finding or assessing a plot, preparing designs and drawings, and applying for planning permission. Architects, designers, surveyors and project managers can advise on layout, costs, construction methods and the sequence of work. Other services and products may include groundworks, foundations, structural work, installation of utilities, construction of the main building and completion of interiors. Some businesses supply timber-frame or other self-build kits, while others offer individual trades, materials or a complete build service. Customers can also expect support with building regulations, inspections, energy efficiency and arranging warranties or insurance where these are required.