For all multi-family residential, commercial, institutional or industrial projects, the drafting of scale drawings by a registered architect with, as needed, a provincially registered engineer, is required. These are building plans with dimensions showing:The 4 elevations of the building or structure indicating the size, dimensions and list of materials to be used.The projected use of each room or floor space.Cross sections of walls, foundations, floor plans and details.Structural details of floors.Stairways (railings, headroom).Any other drawings requested by the building inspector.