Shibuya Scramble Square is project aiming to redevelop the station block to guide in the next future of Shibuya. The first phase (East Tower) opened on November 1, 2019. This building is 47 floors above ground and 7 floors below ground, and includes an urban core that smoothly connects multiple public transit spaces; a high-grade office with over 73,000 square meters of floor space; and a commercial facility surpassing 32,000 square meters. In addition, it aims to maximize Shibuya’s potential as a “center open to the world that sets trends for life and culture” by introducing urban functions to heighten global competitiveness, such as SHIBUYA QWS, which encourages the concentration and growth of the creative content industry in Shibuya, and SHIBUYA SKY, the observation desk that attracts visitors from both within Japan and abroad.
Urban renewal that makes the most of Shibuya’s distinctive character
To solve these challenges, grasping the opportunity provided by the decision for mutual direct operations of the Toyoko Line and Fukutoshin Line in 2000, and the Cabinet designation of the area in 2005 as a Priority Development Area for Urban Renaissance, full-scale operations began on the overhaul of Shibuya to rebuild the infrastructure including Shibuya station, while using the site of the former Toyoko line tracks and undertaking the sequential development of five blocks.
After long years of discussion between the government authorities and developers, it was planned to first reorganize urban infrastructure such as the station front squares and river through land readjustment projects, shape and concentrate building sites, and secure plots of land for railways and road widening, and following this, build a pedestrian network that seamlessly connects the station and town through redevelopment that leverages the benefits of the area’s designation as a special zone for urban renewal.
Through such processes, following the completion of Shibuya Hikarie in 2012 and Shibuya Stream in 2018, the third project, Shibuya Scramble Square The First Phase (East Tower) was recently completed.
Process-led design through the Shibuya Design Council
City-scale three-dimensional public space born in the valley town of Shibuya
The “urban core” linking the city’s vertical pedestrian flow
A panorama view of Tokyo from the SHIBUYA SKY observation area
The outdoor observation space uses the entire roof of the building, which makes it one of Japan’s largest outdoor decks with an area surpassing 2,500 square meters. Standing in the center of the stage, visitors can feel an overwhelming sense of freedom with nothing to block the 360-degree view. Moving to a corner, Shibuya’s famous scramble crossing intersection can be seen far down below, providing an experience of Shibuya’s immense dynamism. And in the 3,000-square-meter indoor observation area, digital content by Rhizomatiks are displayed throughout for a virtual experience overlapping with the real view for a novel vista experience.
By achieving a public space on the rooftop, SHIBUYA SKY, an urban flow from the urban core to SHIBUYA SKY has been created for a high-rise linked to the town.
A tower with a soft volume that is linked to the town
Kengo Kuma was in charge of the lower section. He expressed the features of Shibuya, where various people, things and information flow in and out, as a building with a soft volume that is transformed, distorted, and worn away by this flow. Specifically, at the urban core adjacent to the flow of people in the east station square and the human flow in the subways, the volume was pared down, and through gradational placement of aluminum fins and the spraying of ceramic powder on the glass exterior, a curtain wall that presents a novel expression of shadow and movement within translucence was created.
Next, the tower section designed by Nikken Sekkei focused on the topography and the city scale of Shibuya with its rows of small, mid-rise buildings. Vertical slits for natural ventilation and air conditioning air intake and exhaust were randomly placed to sectionalize the huge glass façade to create a “exterior design that matches the town’s sense of scale.”
The tower’s design also took note of the building’s relationship with Shibuya’s streets. Shibuya has streets extending out radially from the station at the bottom of a valley. From its location, the building meets up with these radially spreading streets at its corner, and this is the reason for “an exterior design that converges in the corner.” The white ceramic print on the exterior glass gradually becomes translucent as it approaches the corner. This gives movement to the shape of the corner and adds changes to the reflection of light at the corner. This exterior design that converges at the corner is seamlessly linked with the urban core design of the lower floors and is tied to the design of the rooftop observation area, SHIBUYA SKY, which opens out to the city, and adds dimension to the town of Shibuya.
The energy of the horizontally spreading town of Shibuya is joined with the vertically soaring high rise. It was aimed to make this a tower linked to the town, which takes in the energy of Shibuya and generates new possibilities.
■SHIBUYA SCRAMBLE SQUARE The First Phase (East Tower) Overview
|Building Name||：||SHIBUYA SCRAMBLE SQUARE The first Phase (East Tower)|
|Client||：||TOKYU CORPORATION, East Japan Railway Company, Tokyo Metro|
|Design||：||Shibuya Station District Development Project Consortium
(NIKKEN SEKKEI + TOKYU ARCHITECTS & ENGINEERS + JR-East Design Corporation + Metro Development)
|Design Architects||：||NIKKEN SEKKEI, KENGO KUMA AND ASSOCIATES, SANAA
(East Tower: Nikken Sekkei; East Tower Lower Floors and East Urban Core: Kengo Kuma and Associates)
|Construction||：||Shibuya Station Block East Tower New Construction Consortium (Tokyu Construction, Taisei Corporation)|
|Key Uses||：||Retail Stores, Eateries, Offices, Observation Facilities, Parking Space, etc.|
|Total Floor Area||：||First Phase (East Tower) about 181,000㎡|
|Structure||：||Steel, reinforced concrete, steel reinforced concrete|
|Floors||：||7 floors belowground, 47 floors aboveground|
|Parking||：||116 vehicles（mechanical 94, flat 10, loading 12）|
|Construction period||：||June 2014 – August 2019|
Open hours: 9：00 am – 11:00 pm (final admission 10 pm）
Admission fee: Adults 2,000 yen (Please see the official site for further details.)