Ten years later the school's name changed to Keio Gijyuku (慶應義塾); in 1871 it moved to Mita, its main campus.
During World War II, some buildings were used by the Imperial Navy of Japan's (大日本帝國海軍, Dainihon teikoku kaigun) third region of naval operations (軍令部3部, Gunrei-bu san-bu) personnel division, engineering unit, headquarters of its combined squadron (連合艦隊司令, Rengō Kantai shirei-bu), naval command (海軍総隊司令部, Kaigun sōtai shirei-bu) and carrier air-wing command (航空本部, Kōkū honbu).
The tree-lined street received Dai anaka-kai Yokohama-shi Machinami Keikan-shō (第7回横浜市まちなみ景観賞, the seventh Yokohama Best Regional Landscape Award) in 1997. Notable buildings include: In 1917 a medical school (医学科予科, Igaku-ka yoka) opened in Mita, later moving to Shinanomachi and (during World War II) Musashino.
Notable buildings include: In 2008 Keio University joined 共立薬科大学 (Kyoritsu Yakka daigaku) with campuses in Shiba and Urawa, opening its Department of Pharmacology and the Graduate School of Pharmaceutical Sciences.
[30] The K2Town campus, built in 2000, aims to advance research and development among industry, academia and Kawasaki.