In American English, what is this self-contained housing unit (a type of residential real estate) that occupies only part of a building, of which the living place of the lives of six young people from Bedsitcom?
Apartment An apartment (American English), flat (British English) or unit (Australian English), is a self-contained housing unit (a type of residential real estate) that occupies only part of a building, generally on a single level. Such a building may be called an "apartment building", "apartment complex", "flat complex", "block of flats", "tower block", "high-rise" or, occasionally "mansion block" (in British English), especially if it consists of many apartments for rent. In Scotland, it is called a block of flats or, if it is a traditional sandstone building, a "tenement", which has a pejorative connotation elsewhere. Apartments may be owned by an "owner/occupier", by leasehold tenure or rented by "tenants" (two types of housing tenure).
Condominium conversion In real estate, a condominium conversion or condo conversion is the process of entitling an income property or other lands currently held under one title to convert from sole ownership of the entire property (which often already is a multi unit property) into individually sold units as condominiums. Such entitlement is generally derived from approvals granted by state/provincial and/or local municipal authorities (and often other relevant agencies, such as conservation authorities).