The Ontario Building Code | Group B, Division 3 Occupancies
3.1.2.5. Group B, Division 3 Occupancies
(1) Group B, Division 3 occupancies are permitted to be classified as Group C major occupanciesprovided,
(a) the occupants live as a single housekeeping unit in a suite with sleeping accommodation for not more than 10 persons, and
(b) not more than two occupants require assistance in evacuation in case of an emergency.
In Plain Language
This clause allows a Group B, Division 3 occupancy (care occupancy) to instead be classified as the less restrictive Group C (residential), provided residents live together as a single housekeeping unit with sleeping accommodation for no more than 10 people, and no more than two of them need assistance evacuating in an emergency.
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.