The Ontario Building Code | Plumbing Facilities for Dwelling Units
3.7.4.5. Plumbing Facilities for Dwelling Units
(1) A dwelling unit where a piped water supply is available shall be provided with a,
(a) kitchen sink,
(b) lavatory,
(c) water closet or drainless composting water closet, and
(d) bathtub or shower stall.
In Plain Language
A dwelling unit with piped water service must be provided with a kitchen sink, a lavatory, a water closet or drainless composting toilet, and a bathtub or shower stall, the basic fixture set every home needs.
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.