Yokohama Symphostage Inyubako Ihuriweho n'Imikoreshereze Myinshi by Obayashi Corporation is a highly esteemed winner of the very prestigious 2025 Igihembo cya A' Design Award cya Ifeza in Igishushanyo cy'Ubwubatsi Competition Category.
IfezaUbwubatsi· 2025
Yokohama Symphostage Inyubako Ihuriweho n'Imikoreshereze Myinshi
Client: Obayashi Corporation
Igihembo cya A' Design Award cya Ifeza Winner in Ubwubatsi Category
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The Design
About Yokohama Symphostage Inyubako Ihuriweho n'Imikoreshereze Myinshi
Yokohama Symphostage ni inyubako ihuriweho n'imikoreshereze myinshi iherereye i Minato Mirai, Yokohama, mu Buyapani. Iyi nyubako ifite ubuso bwose bw'amagorofa bungana na metero kare zigera ku 183.000, kandi irimo ibiro, hoteli n'amaduka. Yokohama Symphostage ihujwe n'urusobe rw'inzira z'abanyamaguru zihuza umujyi rwagati wa Yokohama n'uduce tuwukikije. Inzira ebyiri z'abanyamaguru zinyura kuri iki kibanza kandi zihuzwa n'ikibuga cy'amagorofa menshi gifite ibikorwa remezo rusange byo guteraniramo mu gihe cy'ibirori n'ibiza. Isesengura ry'ikoranabuhanga ryerekeye umuyaga, urumuri rw'izuba n'urujya n'uruza rw'abanyamaguru ni ryo ryayoboye igishushanyo mbonera cya buri mwanya.
The Recognition
About the Igihembo cya A' Design Award cya Ifeza
Yokohama Symphostage Inyubako Ihuriweho n'Imikoreshereze Myinshi ni uwegukanye Igihembo cya A' Design Award cya Ifeza, ishimwe ridasanzwe ry'agaciro gakomeye ritangwa ku bishushanyo byo ku rwego rwo hejuru, byiza kandi bikora ku mutima. Abegukanye Ifeza ni ibihangano by'ubuhanga bukomeye kandi bifite guhanga kwinshi, bigaragaza ubuhanga bwimbitse, impano n'ubushishozi bw'ababihanze. Yokohama Symphostage Inyubako Ihuriweho n'Imikoreshereze Myinshi biteganyijwe ko izaba igihangano cy'icyitegererezo, gifite ubunyamwuga bukomeye n'udushya twimbitse. Iki gishushanyo cyegukanye Ifeza ni igihangano kizwi kandi gishimwa, gifasha kugura imbibi z'ubuhanzi, ubumenyi, ubushushanyo n'ikoranabuhanga. Yokohama Symphostage Inyubako Ihuriweho n'Imikoreshereze Myinshi ni igihangano benshi bifuza, gikangura ibyifuzo, gitanga amarangamutima meza kandi gitera igitangaza.
Behind the Design
Press Kit
Credits, team members and technical details provided by the designer.
- Unique Properties
- This is a complex with a total floor area of approx. 180,000 m2 and connected to the pedestrian network, an important infrastructure linking central Yokohama and its surrounding areas.Located on a site intersected by two key pedestrian axis which connect the Minato Mirai district to surrounding areas. Historically disconnected, these pedestrian spaces are revitalized and interconnected through a multi-layered plaza and lively public facilities where people can gather during events and disasters.
- Dimensions & Packaging
- Location : Minato Mirai, Yokohama City, Kanagawa, Japan
Use : Office,Hotel,Store
Construction period : April 2021 - March 2024
Site area : 20,620.58 m2
Building area : 14,723.65 m2
Total floor area : 182,937.70 m2
Number of floors : 1 story below fround,30 floors
Maximum Height : West Building:158.633m , East Building: 89.733m
Structure : steel construction (part of columns, cft construction)partially steel-framed reinforced concrete construction. - Tags
- Architecture, Pedestrian, Plaza, Seascape, Simulation, Sustainability, BELS, ZEB, Obayashi
- Production Technology
- The multi-layered plaza was planned using simulations for wind, sunlight, and pedestrian flow to optimize each space for its intended use. The large glass roofs adjust the environment of semi-outdoor spaces.For the office areas, solar simulations led to the exterior wall design to achieve an optimal balance of sunlight for air conditioning and lighting efficiency. Automated control of jalousie windows and blinds further integrates environmental factors into a comfortable working environment.
- Design Challenge
- Achieving Cost-Effective Energy Savings and Decarbonization with Advanced Design Methods
The project utilized advanced heat load simulations (EcoSimule) to strategically incorporate features such as double-skin curtain walls, solar shading fins, and energy-efficient air conditioning systems selected for their cost-effectiveness. As a result, the project efficiently achieved BELS 5-star, ZEB Ready, and CASBEE Yokohama S-rank certifications. - Research
- The project deployed unique methodologies exclusive to our Technical Research Institute. Wind environment simulations covering the entire area validated the minimal impact on the environment. This confirmed the utility of high-rise terraces, and natural ventilation systems. Additional achievements included evacuation planning through comprehensive safety assessments, acoustic environment simulations for complex geometries, and the creation of organically shaped benches by 3D printing.
- Inspiration
- Taking advantage of the strengths of a consortium involving several business owners, the public facility is a developed sterically space with multiple uses being developed in an organic organizational manner, with each business owner taking charge of the programs in which they excel.The plaza is used for various lively events, including music events hosted by Yokohama City and Yamaha, creating an environment where people naturally gather.
- Project Duration
- Location : Minato Mirai, Yokohama City, Kanagawa, Japan
Construction period : April 2021 - March 2024 - Operation Flow
- The main circulation paths traverse the first and second floors of the site, with vibrant public facilities concentrated in the lower levels. Adjacent multi-layered plazas are tailored to the characteristics of these facilities, designed to allow indoor activities to blend seamlessly with the outdoors. These spaces aim to amplify and diffuse activities across external areas and other floors.
- Team Members
- Hiroshi Satake
Kenji Matsuoka
Daisuke Iwasaki
Ryosuke Okawa - Image Credits
- Photographer
Image#1,#5: Naomichi Sode (SS Co., Ltd)
Image#2,#3,#4: Shinkenchiku-sha
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