Meanwhile, in 1920, the mid Taisho era, the first Japanese architectural design movement was beginning with a group of graduates from the Department of Architecture of Tokyo Imperial University including Sutemi HORIGUCHI, Mamoru YAMADA, Kikuji ISHIDA, Keiichi MORITA and Mayumi TAKIZAWA; it was called Bunri-ha Kenchikukai.
一方、大正中期の1920年に日本初の建築デザイン運動として、堀口捨己・山田守・石本喜久治・森田慶一・瀧澤眞弓等の東京帝国大学建築学科出身者が集まり分離派建築会の活動が始まった。