Minister of Foreign Affairs, Kaoru INOUE employed the policy of Europeanization which was called the Rokumeikan (Rokumeikan guest house) diplomacy to aim at revising the European treaties and the grand capital construction was an integral part of the policy.
外務大臣井上馨は条約改正のため鹿鳴館外交と呼ばれる欧化政策を採り、その一環として壮大な首都建設を構想した。