Most people in Britain regard a porch as a small room covering only the entrance area of a building, almost always outside the main walls of a house. But porches can also be larger, sometimes wrapping around the sides of a building, or even the whole way around it.
There is no legal definition of a porch. In planning terms, a porch can be regarded as a type of extension outside any external door of a building. There is a size limit, though, if you are hoping to avoid the need for
