During the reign of Empress Genmei, the national reform further accelerated, and in 708, the first currency Wado-kaichin was issued and an imperial decree to announce the transferring of the capital to Heijo-kyo, which was the full-scale capital modeled after Changan, was issued. (As in Changan, Daigokuden in Heijo-kyo was located at the northernmost part. The transfer of the capital was realized two years later in 710.)
元明朝においても国制改革はさらに加速し、和銅元年（708年）には、初の流通貨幣である和同開珎の発行、および長安の造形に倣った本格的都城となる平城京遷都の詔が発せられた（平城京は長安と同じく大極殿を北端に置く。実際の遷都は2年後の和銅3年）。