It is thought that the remains including border ditches were buried during the period from the late 11th century to the early 12th century, and that blocks based on jobosei died out around this time.
区画溝などの遺構は11世紀後半から12世紀前半にかけて埋没し、条坊制による街区はこのころに廃れたと考えられる。