• 15 November 1910: This station was opened by
Japanese Government Railways as a station of the
Yamanote Line. • 13 April 1945: The station building was burned down by an air raid during
World War II. • 1 April 1987: The station facilities of the Yamanote Line were inherited by
JR East after the privatization of the Japanese National Railways. • 29 November 1991: The Namboku Line station was opened by
Teito Rapid Transit Authority (TRTA). • 1 April 2004: The station facilities of the Namboku Line were inherited by
Tokyo Metro after the privatization of the TRTA. • 2016:
Station numbering was introduced to the Yamanote Line with Komagome being assigned station number JY10. ==Surrounding area==