A dwelling unit consists of one or more rooms that contain food preparation and sanitary facilities provided for the exclusive use of the occupants of the unit. The inhabitants of a dwelling unit are one or more persons who are "living together and maintaining a common household, in a residential building or residential portion of a building."
City of Toronto Zoning By-law 569-2013, as amended (Office Consolidation) Chapter 800 Definitions 800.50 Defined Terms. (n.d.). Retrieved from 
NYC Planning - Glossary of Planning Terms. (n.d.). Retrieved from