The is a high-rise office building with integrated retail and restaurant facilities (which are also known as OTEMORI) located in the Otemachi business district in Chiyoda ward, Tokyo.
The 38-story tower serves as the headquarters of Mizuho Bank. A luxury hotel facility operated by Aman Resorts occupies the top six floors of the tower.
The Otemachi Tower replaced the previous 16-story head office complex of Fuji Bank then of Muzuho Holdings, which had been built in 1990 on the same site and was demolished in 2012.
A major feature is a 3,600-m<sup>2</sup> green area named "Otemachi Forest" occupying one third of the site.
The building is situated above a nexus of five subway lines. The basement floors connect directly to à Âtemachi Station, as well as other nearby buildings.