The jobo of Dazai-fu existed around the middle of the seventh century when Kanzeon Temple was built because it is believed that temples and shrines were constructed keeping with the jobo constructed earlier, not that the jobo were constructed keeping with the temples and shrines which were constructed earlier.
寺社に合わせて条坊が建設されることはない、寺社が条坊に合わせて建設されたと考えられることから、太宰府の条坊は観世音寺が創建された7世紀中頃には存在していた。