The Ontario Building Code | Combined Living, Dining, Bedroom and Kitchen Spaces
220.127.116.11. Combined Living, Dining, Bedroom and Kitchen Spaces
(1) Despite Subsections 9.5.4. to 9.5.7., where living, dining, bedroom and kitchen spaces are combined in a dwelling unit that contains sleeping accommodation for not more than two persons, the area of the combined spaces shall be not less than 13.5 m2.
9.5.9. Bathrooms and water Closet Rooms