In Nihonshoki, Emperor Tenchi's capital of Omi is called "Omi-kyo," but there can be found no description of a street plan of ancient capital which existed in Heijo-kyo or Heian-kyo or no confirmation about the existence of "kyoiki" (capital area) as a special administrative district.
日本書紀には天智天皇の近江の都を「近江京」と表記しているが、平城京や平安京のような条坊制が存在したことを示す記載はなく、特別行政区としての「京域」の存在も確認できない。