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PROJECTS / TORANOMON HILLS

Japan’s Vertical Garden City

The Toranomon Hills Mori Tower, a prominent skyscraper in Tokyo, is now accompanied by two impressive new structures: a 36-story office tower reaching 185 meters in height, and Japan’s tallest residential skyscraper, standing at 54 stories and 220 meters tall. Connecting all three high-rise buildings at the first above-ground level is a green, publicly accessible plateau. Christoph Ingenhoven is the first German architect since 1895, when Berlin architects Hermann Ende and Wilhelm Böckmann designed the headquarters of the Japanese Ministry of Justice, to undertake a significant construction project in the Japanese capital.

The towers descend in stepped terraces towards the ground-level zone, where a public green plateau extends above the street-level plaza. This elevated space is dedicated to pedestrians, seamlessly connecting all three towers and offering access to cafés, restaurants, shops, a spacious lobby, and coworking facilities within the office tower. Benches are strategically placed to encourage visitors to relax and enjoy exercise areas and serene fountains—a tranquil oasis amidst the bustling environment of the world's largest city.

At the heart of the design are lush plantings that seamlessly blend the skyscrapers with their surroundings. The two new towers harmoniously integrate into the neighborhood, paying homage to the taller central tower while offering a distinctive contemporary urban aesthetic. They echo the verdant landscapes of the nearby parks and gardens surrounding the historic Atago Shrine, a Shintō shrine dating back to 1603.