An apartment (American English, Canadian English), flat (British English, Indian English, South African English)[a], or unit (Australian English) is a self-contained housing unit (a type of residential real estate) that occupies part of a building, generally on a single story. There are many names for these overall buildings (see below). The housing tenure of apartments also varies considerably, from large-scale public housing, to owner occupancy within what is legally a condominium (strata title or commonhold) or leasehold, to tenants renting from a private landlord.
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