A self contained flat that has been converted out of part of a larger property, is known as a converted flat. A flat which has the freehold of the land on which it is built, is known as a freehold flat. A flat designed and built as such; a self contained residential unit contained within a larger structure containing several self contained units or flats all sharing a common entrance, is known as a purpose built flat a studio flat, is a flat comprising a single habitable room, plus bathroom and possibly separate kitchen. Many lenders will not lend on these properties as they are considered more difficult to resell.