Sreed Ebisu T Tsev Ua Haujlwm by Salhaus

Sreed Ebisu T Tsev Ua Haujlwm by Salhaus is a highly esteemed winner of the very prestigious 2025 A' Design Award Nyiaj in Tsim Vaj Tsev, Tsev thiab Qauv Tsev Competition Category.

NyiajVaj Tsev· 2025

Sreed Ebisu T Tsev Ua Haujlwm

by Salhaus

Client: Sapporo Real Estate Co., Ltd

A' Design Award Nyiaj Winner in Vaj Tsev Category

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Verified Award Winner

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The Design

About Sreed Ebisu T Tsev Ua Haujlwm

Sreed Ebisu T yog ib lub tsev ua haujlwm muaj cuaj txheej nyob rau hauv Ebisu, cheeb tsam Shibuya, Tokyo. Lub tsev no siv ib qho txheej txheem sib xyaw uas muab tus ncej hlau thiab txheej txheem beam los sib txuas nrog cov txheej txheem ntoo tiv thaiv av qeeg uas muab ntxig rau hauv. Cov txheej txheem ntoo, hu ua seismic timber lattice shell, ua haujlwm tau ob yam yog ib qho txheej txheem tuav lub tsev thiab yog ib qho khoom kho sab hauv tsev. Cov khoom uas tiv thaiv av qeeg xwb tsis tas yuav muaj kev tiv thaiv hluav taws, yog li cov ntoo thiaj li tseem pom tau. Cov txheej hauv qab muaj cov khw noj mov lossis khw muag khoom, thiab cov txheej saum toj muaj cov chaw ua haujlwm. Cov chaw so sab nraud uas nyob raws tus ntaiv pab txhawb kev so thiab kev sib cuag.

The Recognition

About the A' Design Award Nyiaj

Sreed Ebisu T Tsev Ua Haujlwm yog tus yeej ntawm A' Design Award Nyiaj, ib qho kev lees paub muaj meej mom heev tshaj li qub uas muab rau cov qauv tsim qib siab, zoo nkauj thiab ua rau neeg xav tsis thoob. Cov neeg yeej Nyiaj yog cov haujlwm ci ntsa iab heev thiab tsim tshiab heev uas qhia txog kev paub, kev txawj ntse thiab kev ntse ntawm cov kws tsim qauv. Sreed Ebisu T Tsev Ua Haujlwm xav tias yuav yog ib qho haujlwm zoo kawg nkaus uas tsim rau qhia, tshaj lij heev thiab tsim tshiab tob. Cov qauv tsim yeej A' Design Award Nyiaj no yog ib qho khoom tsim uas pom tseeb heev thiab neeg qhuas uas pab tau thiab nthuav dav ciam teb ntawm kev kos duab, kev tshawb fawb, kev tsim qauv thiab thev naus laus zis. Sreed Ebisu T Tsev Ua Haujlwm yog ib qho khoom tsim uas neeg coob xav tau, uas ua rau xav, coj kev xav zoo thiab ua rau xav tsis thoob thiab xav paub.

Behind the Design

Press Kit

Credits, team members and technical details provided by the designer.

Unique Properties: This project is a nine-story office building in Tokyo. We tried to create a new prototype for urban timber architecture in this project. Our proposal was a hybrid structure of a steel post-and-beam frame and timber seismic frames inserted into it. This timber frame, which we call a "seismic timber lattice shell," is not only a structural but also an interior element to realize new workspaces where people can work in a more relaxed mode, enjoying the spatial value of the timber construction.
Dimensions & Packaging: This project is a 9-story, 34.3m-high rental building with a total floor area of 564.7m2 and a footprint of 80.0m2. The ground and first floors are for restaurants or retail stores, and the third to ninth floors are for offices. It has an evacuation staircase and an evacuation balcony on each floor required by law, and an elevator. In addition, it is a fireproof building under the Building Standards Act.
Tags: Architecture, Timber, urban, Office, workspace
Production Technology: Urban timber architectures, which have recently been booming in Japan, are dominated by multi-story buildings with post-and-beam frames that have acquired special fire-resistance certification. However, these buildings simply replace RC or steel-frame construction with timber and do not possess the spatiality unique to timber construction. Our goal was to create a new typology of urban timber architectures that maximizes the spatial value of timber construction and allows end users to enjoy the value.
Design Challenge: As this was an unprecedented construction method, we put great effort into the detailed design of the steel and timber joints. During the construction phase, we formed a team with a contractor, a steel fabricator, and a timber fabricator, both with high technical capabilities, and worked out the details of the joints while sharing 3D data. In addition, there were differences in the production accuracy between the two fabricators, so we paid close attention to the accuracy management on site.
Research: Two primary motivations for promoting the construction of timber buildings in Japan today are, reducing CO2 emissions during construction and making use of the vast forest stock. Structural strength and fire resistance are the main issues when employing timber for urban buildings. We developed a method of using timber as a seismic element to brace steel frames, which can also work as an exposed interior element; structural members that only act against seismic force do not require fireproofing.
Inspiration: The design of this building was carried out during the COVID-19 pandemic. People stayed home; some even said office buildings were no longer necessary. In this project, we considered what kind of workspace would be worth visiting and working in even after online working technology was established. Our answer was architecture, which provides the comfort of a home and maximizes the value of working together.
Project Duration: This building's site is located in Ebisu, Shibuya-ward, Tokyo. We designed the building from June 2020 to June 2021, and construction work was carried out from June 2021 to January 2023. The building was put into use immediately after that, and all floors are currently rented out to tenants.
Operation Flow: In addition to creating an intimate workspace wrapped in timber on each floor, we created rich common spaces to facilitate workers' interaction. We designed a staircase not only as a simple evacuation route but also as a daily traffic route and arranged many common terraces along it. Taking a break outdoors or communicating with people from other companies will activate collaboration and creativity among workers.
Team Members: Architect: Motoki Yasuhara
Architect: Masashi Hino
Architect: Mari Tochizawa
Structural Engeneer: Jun Sato
Image Credits: Image #1：Photographer Makoto Yoshida, 2023
Image #2：Photographer Makoto Yoshida, 2023
Image #3：Photographer Makoto Yoshida, 2023
Image #3：Photographer Makoto Yoshida, 2023
Image #4：Photographer Makoto Yoshida, 2023