The Toronamon-Azabudai District is a complex of three skyscrapers under construction in Tokyo, Japan. Construction of the complex began in 2019, and is expected to be completed in 2023. It will consist of three buildings. The main tower, measuring 325 metres (1,066 ft) tall, will be the first supertall in Tokyo to be built. Two accompanying buildings measure 263 and 237 metres (863 and 778 ft) in height. Upon completion, the main building will be the tallest building in Tokyo surpassing the nearby Toranomon Hills skyscraper, as well as in Japan, surpassing Osaka's Abeno Harukas building.