Within or outside the area enclosed by walls or nagaya (row houses) were residences called nagaya or koya (small houses) depending on the region, in which followers lived, a central office, and an inner part called the honjin.
塀や長屋で囲った敷地内または外に、長屋または小屋など、各地で呼び名は異なるところはあるが部下が住まう屋敷と中央となる役所と奥向きである本陣が造られることが多かった。