The Ontario Building Code | Extension above Ground Level
9.15.4.6. Extension above Ground Level
(1) exteriorfoundation walls shall extend not less than 150 mm above finished ground level.
In Plain Language
Where a foundation wall extends above ground level, this article sets out the specific requirements that apply to that exposed portion.
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.