The Ontario Building Code | Building Area
3.10.4.2. building Area
(1) For the purposes of Subsection 3.2.2., building area means,
(a) the building area of each building,
(b) the total of the building areas of all buildingsas a group, or
(c) the total of the building areas of any number or group of buildings.
In Plain Language
For calculating building area under Subsection 3.2.2, a self-storage building's area can be measured as each building individually, as a total of all buildings as a group, or as a total of any number or group of buildings.
This is a plain-language summary of the 2012/2017 Ontario Building Code text above, for general understanding only and not a substitute for the Code. Always confirm current requirements against the 2024 edition (O.Reg. 163/24) or a qualified professional before construction.