The Ontario Building Code | Required Water Supply
9.31.3.1. Required water Supply
(1) Every dwelling unit shall be supplied with a water distribution system where a drinking water system is available.
In Plain Language
A dwelling unit requires a water supply meeting the conditions set out in this article, ensuring basic access to potable water.
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.