The area was surrounded by walls, and inside there were 3,200 or more houses built with 'Izumi-dono,' the residence of the Soryo (government) family, at the center of them.
周囲は塀を巡らせ、内部には伊勢平氏の惣領家の邸宅「泉殿（いずみどの）」を中心として「屋敷三千二百余宇」が立ち並んでいた。