Azabudai Hills (麻布台ヒルズ, Azabudai Hiruzu), formerly tentatively known as the Toranomon-Azabudai District or Toranomon-Azabudai Project, is a complex of three skyscrapers complete in Tokyo. Upon its completion in 2023, the Azabudai Hills Mori JP Tower in the development became the tallest building in Tokyo and Japan. Designed by the architectural firm Pelli Clarke Pelli Architects and developed by the Mori Building Company, it is estimated that the project will cost about 580 billion JPY (USD 4.4 billion). Construction started in 2019, and the inauguration will occur on 24 November 2023. The complex is located in the Toranomon business district, in the ward of Minato; it lies between sister Mori Building projects Roppongi Hills to the west, Toranomon Hills to the east and Ark Hills to the north. The project's official name, "Azabudai Hills", was announced by Mori Building on 14 December 2022.