Single room occupancy (more commonly SRO, sometimes called a single resident occupancy) is a form of housing in which one or two people are housed in individual rooms (sometimes two rooms, or two rooms with a bathroom or half bathroom) within a multiple-tenant building. The term is primarily used in Canadian and American cities. SRO tenants typically share bathrooms and/or kitchens, while some SRO rooms may include kitchenettes, bathrooms, or half-baths. Although many are former hotels, SROs are primarily rented as a permanent residence.