Two forms of residential facilities are becoming very popular around the world: apartments and flats.
Different british estate agents have their own definitions. Basically apartment and flat is the same. But what is the difference between a flat and an apartment? Apartment is another name for a flat, especially in America and Canada.
Apartment: the name for usual homes in USA, Canada, Hong Kong, etc.
Flat- This is just how ‘apartment’ is said in the U.K, is a term mostly used in Europe to signify an apartment.
There is no physical difference between an apartment and a flat, they both could look like each other. A flat is the British English equivalent of the word apartment.
A flat is a single-family suite of rooms including a kitchen and at least one bathroom situated in a building with multiple such suites, a flat is generally a rental property.