What are the common characteristics of nucleated settlements

A nucleated village or clustered settlement is one of the main types of settlement pattern. It is one of the terms used by geographers and landscape historians to classify settlements.[1] It is most accurate with regard to planned settlements: its concept is one in which the houses, even most farmhouses within the entire associated area of land, such as a parish, cluster around a central church, which is close to the village green. Other focal points can be substituted depending on cultures and location, such as a commercial square, circus, crescent, a railway station, park or a sports stadium.