Ɛeddi ɣer ugbur
Komazawa Daigaku Taɣsert n umachin uzzal sɣur Uds Ltd.

Komazawa Daigaku Taɣsert n umachin uzzal sɣur Uds Ltd. d anerbaz yettwaqadren meqqren n 2026 Tarbaḥt A' Design Award n Lfeṭṭa deg Taggayt n Tnaflit n Afeṣṣel n Tansekta, Lebni d Teɣssa.


LfeṭṭaTansekta· 2026

Komazawa Daigaku Taɣsert n umachin uzzal

sɣur Uds Ltd.

Amsaɣ: UDS Ltd.

Anerbaz n Tarbaḥt A' Design Award n Lfeṭṭa deg Taggayt n Tansekta

22,463

Anerbaz n Urraz Yettwasenqden

Senqed Addad n Urraz i #173965

Initen

Afeṣṣel

Ɣef Komazawa Daigaku Taɣsert n umachin uzzal

Komazawa Daigaku d taɣsert n umachin uzzal i d-yettwaǧeddden yellan ddaw n Tmurayt n Komazawa deg Setagaya, di Tokyo. Taktiwt "Ddaw n Tmurayt" tettwali abraḥ n ddaw n wakal am iẓuran, ma d lebni n tuffɣiwin am isekla izamulen. Iferdisen n teɣsert bḍan ɣef kraḍ n wakuden: leqdicat n wakal imezgiyen, isekla i yettimɣuren akked yiferrawen i d-yettuǧedden. Iceṛfiyen d leqɛiyat n terrazzo yellan uqbel ttwaḥerzen iwakken ad yenqes usexser, yerna yettwaseqdec usɣar n tmurt. Aɣebbar uzzal n ssqef yettak-d tafat yettwabḍan am tin n yiferrawen. Ikersiyen d lbenkat ttɛerriḍen medden ad steɛfun yerna ad mlilen.

Asmekti

Ɣef Tarbaḥt A' Design Award n Lfeṭṭa

Komazawa Daigaku Taɣsert n umachin uzzal d amerbaḥ n Tarbaḥt A' Design Award n Lfeṭṭa, tagmat ɛlayen i yisnulfa yelhan, yeḥlan s waṭas. Imerbaḥen n Lfeṭṭa d isnulfa yelhan akk, yesɛan tmusni d tazmert. Komazawa Daigaku Taɣsert n umachin uzzal ad yili d asnulfu amaynut, yelhan, ad yeǧǧ ddunit tennuɣ.

Deffir n ufeṣṣel

Tagrurt n tɣamsa

Ismawen n terbaɛt, iferdisen itiknikanen akked telɣut i d-yefka umeṣṣufeɣ.

Taɣara Tasuft
This project's uniqueness is its "Under the Park" concept, which creates a consistent narrative for the entire space: the underground concourse is envisioned as the town's "roots," and the buildings as "symbolic trees." Furthermore, a unique design methodology redefines the station via three timescales: "permanent earthworks," "aging Trees," and "renewing leaves." This presents a new vision for an adaptable station designed to be loved long-term.
Tigejdiwin & Akemmus
Total Floor Area:
Underground Station Concourse: Approx. 6,500 sqm (RC structure, 2 floors below ground)
East Exit Building: 564.34 sqm (RC structure, 4 stories above ground)
West Exit Building 1: 398.58 sqm (Steel structure, 2 stories above ground)
West Exit Building 2: 346.80 sqm (Timber and partial RC structure, 4 stories above ground, 2 floors below ground)
Tibzimin
Renovation, Station, Sustainability, Timber, AdaptiveReuse, Narrative, PublicSpace, Biophilic, Placemaking, Tokyo
Tasnakta n Ufares
This project’s realization is driven by sustainability. We minimized waste by preserving existing tiles and terrazzo floors, while using domestic timber for its warmth and environmental benefits. The West Exit building, in a fire protection district, pioneers advanced timber tech like LVL fire-resistant coating and a two-way rigid-frame structure (rare in Japan). A special metallic ceiling coating creates a unique komorebi (dappled sunlight) effect.
Asewḥel n Usnulfu
Our greatest challenge was maintaining the consistency of the "Under the Park" concept across a four-year project with diverse work areas and many stakeholders. Amidst fragmented on-site decisions, our "Earthworks, Trees, and Leaves" design guideline served as the core guiding principle to return to. Additionally, realizing a timber station building in a fire protection district was a major external challenge, requiring us to overcome strict legal regulations and technical constraints.
Anadi
This practical research aimed to translate the given "Under the Park" concept into a sustainable space, creating new value for aging infrastructure. Our methodology was to develop the "Earthworks, Trees, and Leaves" model, which classifies station components by three timescales. Based on this model, we selected materials and composed the space, prototyping advanced timber technology in one building. The expected social impact is increased user dwell time, fostering affection for the station.
Aseḥbiber
The primary source of inspiration for this project is its very location: "under Komazawa Park." We were strongly motivated by the desire to transform the aging, inorganic underground space—a place people have used daily for over 45 years—into a more comfortable and cherished environment. Therefore, we placed the "park," a quintessential landscape shared by all local residents, at the core of our concept. We envisioned that just as the trees in the park extend their roots underground to support their lush forms above, the station could also become like a living organism—absorbing, nurturing, and radiating the town's vitality. This poetic vision of "Under the Park" became the driving force behind the entire design.
Tanzagt n Usenfar
This project was implemented at Komazawa-daigaku Station in Setagaya, Tokyo, as the first phase of the "Green Under Ground" renewal project by Tokyu Railways Co., Ltd. The schematic design phase began in August 2020, and the overall construction period for the station runs from July 2020 to March 2025. Completion is on April 1, 2025.
Tanila n Umahil
Visitors are guided by the "Symbolic Tree"-like station buildings into the "Under the Park" world. Descending warm, trunk-like staircases, a space unfolds resembling the roots of a park, seemingly bathed in dappled sunlight. This functions not merely as a path to the trains, but as a "garden" for people to spend time as they wish. Intentionally placed benches and counters invite users to linger, meet or rest, generating a new, personal interaction with the station itself.
Igmamen n Terbaɛt
Designer: Keiichi Ito
Designer: Yayoi Sato
Designer: Seshiro Honda
Graphic Designer: Yutaro Sakurai
Imsuren n Tugniwin
Image #1 : TOKYU CONSTRUCTION CO., LTD., 2025
Optional Image #1 : Photographer Shinsui Ohara, 2025
Optional Image #2 : Photographer Shinsui Ohara, 2025
Optional Image #3 : Photographer Shinsui Ohara, 2025
Optional Image #4 : Photographer Shinsui Ohara, 2025
Optional Image #5 : Photographer Shinsui Ohara, 2025

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