The region was previously called Tsunohazu (角筈).
Nishi-Shinjuku was Tokyo's first major foray into building skyscrapers with the first appearing in the 1970s with Keio Plaza Inter-Continental.
Progress continues in Nishi-Shinjuku, which is heading away from the city centre and has the site of the proposed Nishi-Shinjuku 3-Chōme Redevelopment, with plans for what will be three of the four tallest buildings in Japan.
[3] Seiko Epson's Tokyo Office is in the Shinjuku NS Building.
[4] Capcom's Tokyo offices are located in the Shinjuku Mitsui Building[5] and Keihin Corporation is headquartered in the Shinjuku Nomura Building.