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Ondsauna Sauna by Taro Shimokawa
Ondsauna Sauna by Taro Shimokawa
Ondsauna Sauna by Taro Shimokawa
Ondsauna Sauna by Taro Shimokawa
Ondsauna Sauna by Taro Shimokawa

Bwonz Achitekti · 2025

Ondsauna Sauna

by Taro Shimokawa

  • A' Design Award Bwonz 2025 in Achitekti
  • CLIENT: Ondpark
  • Estimated Number of Design Views: 14,328
  • Verification code 4C28D95E6D · Verify this award
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About Ondsauna Sauna

Ondsauna se yon batisman sauna ki plase nan mitan yon forè. Miray eksteryè vètikal yo gwoupe alantou chanm sauna a, yon fason ki fè eko ak kwasans vètikal pyebwa yo. Yon chemen ki vire tankou espiral mennen nan yon espas rilaksasyon sou tèt kay la. Antre a chita 250 milimèt anwo nivo tè a, platfòm plonje frèt la nan 1000 milimèt e tèt kay la nan 3250 milimèt, kidonk mouvman ki soti nan sauna pou rive nan plonje frèt pou rive nan lè louvri a fèt yon fason vètikal. Yon plan poligonal ki iregilye ansanm ak ban ki gen ang obtus gide direksyon gade vizitè yo epi kite yo chwazi pwòp nivo entèraksyon yo.

About the A' Design Award Bwonz

Ondsauna Sauna se yon ganyan A' Design Award Bwonz, yon rekonesans ki gen anpil prestij yo bay design ekselan ki make pa kreyativite, enjenyozite ak finès. Ganyan Bwonz yo se objè ki abil anpil e ki kreyatif nan fason ki frape, ki otantifye gwo eksperyans, imajinasyon ak debouyaj designer yo. Yo atann Ondsauna Sauna pou se yon objè anpil moun estime, admire e renmen, ki pwofesyonèl e inovatè nan fason remakab. Design sa a ki ganyen A' Design Award Bwonz enkòpore pi bon pratik nan atizay, syans, design ak teknoloji, e li ekselan pou atansyon li bay detay. Ondsauna Sauna satisfè bezwen yon fason espledid, li touche dezi, li chame santiman e li atire kiryozite.

Press Kit

Unique Properties
Trees grow endlessly upward, a concept reflected in the vertical exterior walls clustered around the sauna room. A spiraling path leads upward to a rooftop relaxation space, mirroring the building's form. The sauna entrance is at GL+250, the cold plunge deck at GL+1000, and the rooftop at GL+3250, so the transition from sauna to cold plunge to open air follows a vertical flow. Viewing the forest at treetop height allows one to share in its growth rhythm.
Dimensions & Packaging
The irregular plan was chosen to allow the passage and expansion of the line of sight and to adjust the degree of intimacy, which was rationally solved by the 150mm CLT floor slab. The elimination of beams has eliminated non-perpendicular joints in the structure, contributing to labor savings in site work. The rational walls of the scale module are discretely assembled and the CLT slab connects them. This structural form itself can be described as a sociopetal structure.
Production Technology
An irregular polygonal floor plan guides sightlines, creating varied scenic views. Research shows conversations are twice as frequent at 90 degrees versus side-by-side. Here, strangers sit together, so we chose obtuse-angled benches to balance interaction and privacy, encouraging conversation without intrusion. Varied seating allows for different levels of interaction, while the overall arrangement around a fire fosters a shared experience.
Inspiration
In a sauna, strangers sit nearly naked in close proximity, creating potential intimacy. Yet in Japan, public saunas haven’t fostered this sense of community. By aligning with Japan’s unique sense of closeness, we aim to create a sociopetal space, encouraging shared understanding without forced intimacy. “Non-intrusive” walls balance connection and separation; their verticality resonates with the forest, while their spacing draws nature in and modulates closeness among neighbors.

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