David Fraser explains that a building permit is not required for a structure occupying less than ten square metres (108 square feet), based on the Building Code Act, 1992. More info at Ontario Building Code Act, 1992, S.O. 1992, c. 23.
Bunkie Life always advises you to check with your zoning by-law regulations for your municipality as they differ depending on where you live in Ontario, BC or any other province in Canada. This is a quick, easy phone call to your planning department.
*When talking to your municipality, please reassure them that the Bunkie Life bunkies are not tiny homes and there is no plumbing.