Planning drawings are a set of simplified drawings that allow the local planning department to establish the scope of the works whilst only paying particular attention to the newly proposed materials, aspect and features of the building. They bear no reference to the construction methods used and contain no detail as to how the building is to be constructed (wall build ups, floor constructions, roof thicknesses, insulation depths) etc.
Building Regs Drawings
Building Regulation Drawings are a set of detailed drawings and construction details that are submitted to the local building control department and go into much more detail than the planning application drawings. They can incorporate structural information from the engineer, thermal insulation calculations and proof of full compliance with all relevant parts of the Building Regulations. They also include enough information for a contractor to accurately price as well as detailed set of construction specification notes and product specific information.