what is a flat apartment

A flat apartment is a self-contained housing unit that occupies part of a building, generally on a single storey. The term "flat" is commonly used in British English, Indian English, South African English, Australian English, and New Zealand English, while "apartment" is favored in North America. In the UK, "flat" is used for an apartment on a single level, hence a "flat" apartment. The term "flat" sometimes refers to middle-class living, while "apartment" is associated with a more luxurious connotation and caters to a more indulgent audience. Flats generally have all the basic amenities in place to allow the residents to live comfortably, while apartments come with luxury living as well as numerous amenities. In some United Kingdom countries, "flat" connotes a residence of lesser quality, while "apartment" refers to a more upscale and luxurious flat.