And "zaike" refers to an unit of taxation and labor-enforcement, which was made up of a house and its premises, the nearby paddy and field, and the inhabitants, all of which existed in both "shoen" (a manor, or a private estate) and "koryo" (public land).
在家とは荘園・公領における住屋と付属する宅地・田畠・住人を1つの収取単位として扱ったものである。