The Toranomon Hills Towers represent one of Tokyo's most significant urban development projects, comprising two striking skyscrapers flanking the existing Toranomon Hills Mori Tower. Designed by ingenhoven associates, the project consists of a 36-story office tower approximately 185 meters tall and a 54-story residential tower reaching about 220 meters – making it the tallest residential tower in Japan.
Central to the design is the concept of a "vertical garden city", exemplified by lush pedestrian terraces radiating outward from the central tower. These stepped terraces create expansive urban landscapes, facilitate interaction, and seamlessly integrate the buildings with the surrounding historical gardens of Atago Shrine. The green roofs mitigate urban heat island effects while enhancing the aesthetic appeal from above.
Both towers feature a shared architectural vocabulary, characterized by pronounced horizontal ledges serving as sunshades, planting areas, and balconies. These elements effectively balance the desire for abundant natural light with the performance requirements of an energy-efficient building envelope. The terraces offer versatile public spaces and landscaped areas for recreation, relaxation, and social interaction, blending harmoniously with the building structures.
Extensive greenery across multiple levels improves air quality and microclimate, enriching the urban environment through sensory experiences of color, fragrance, and sound. Water features such as waterfalls reflect natural light and contribute soothing sounds, creating a vibrant yet calming atmosphere.
The terraces facilitate continuous connections between the towers, allowing events to be experienced simultaneously across multiple levels. Generous park spaces at the base of the towers provide attractive open areas for residents, workers, and visitors alike.
Both buildings meet high sustainability standards, with the office tower successfully achieving CASBEE Class "S" certification. The project integrates numerous sustainable technologies, including cogeneration systems, greywater recycling, rainwater harvesting, photovoltaic systems, and highly efficient lighting and mechanical systems. Located in the heart of Tokyo's Minato district, the complex offers excellent connectivity via the Hibiya metro line and an express bus station, enhancing accessibility to the city and airports. With its diverse mix of office spaces, residences, retail outlets, and leisure facilities, the complex significantly enhances Tokyo’s dynamic and sustainable urban landscape.
