Born 1979 in New Jersey, USA. Returned to Japan in 1987 and since then, grew up in Canada (Tronto), England (Manchester) and Tokyo. Graduated from Waseda University in 2004.
In the same year started architect career at Sauerbruch Hutton Architekten, the architect studio in Berlin.
In 2008, he returned to Japan and established Yusuke Koshima Architecture Studio. Inaugurated as a part-time lecturer at Kuwasawa Design School in 2010, and at Nihon University Junior College in 2011.