Incidental structure definition
Incidental structure means a structure attached to or incidental to a building. This includes retaining walls, fences, swimming pools, decks, etc., that are not buildings, but which form part of a building project or which are used in association with a building. Typically these will require building permits when they are on lots in urban or town planning areas, but will not require building permits when they are not incidental to a building or, where the risk from failure is low (e.g. in rural and remote areas).