The Ontario Building Code | Washrooms Required
3.13.6.2. washrooms Required
(1) Except as provided in Sentences (2) and (3), a washroom for each sex, containing at least one water closet and one lavatory, shall be provided in each rapid transit station for use by employees.
(2) Where the number of employees in a rapid transit station is not more than five, a washroom containing one water closet and one lavatory is permitted to be used by both sexes provided the door to the room can be locked from the inside.
(3) Where a rapid transit station is not staffed during operating hours, a washroom is not required in the station.
(4) In each rapid transit station located at the end of a line, a washroom for each sex, containing no fewer than three water closets and two lavatories, shall be provided for use by the public.
3.13.7. Emergency ventilation
In Plain Language
A washroom for each sex, with at least one water closet and lavatory, must generally be provided in each rapid transit station for employee use, with a reduced single-washroom option where five or fewer employees work there.
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.