Sobokuya builds leaning timber frame office in Japan
Sobokuya designed The Shrine Office in Hokuto, Yamanashi Prefecture, utilizing ancient inclined column techniques and aging natural materials.
Stock photo for illustration only, not from the actual event
- Sobokuya designed a timber shrine office nestled in a mountain valley in Hokuto, Japan.
- It utilizes ancient ishiba-date and niho-korobi techniques with outward-leaning columns to absorb seismic shock.
- The interior features Yatsugatake larch timber framing and a weathering Corten steel roof.
Design studio Sobokuya has completed The Shrine Office, a timber workspace set within a mountain valley in the precincts of Fujitake Shrine in Hokuto, Japan. The concept centers on allowing natural materials to evolve and deepen in character over time. Two generous openings channel light and air through the interior, casting shifting shadows across tatami mats as seasons change, from spring daylight and summer foliage to crisp autumn air and winter conditions, complemented by deep eaves and hand-finished lime plaster walls.
The building's structure merges two traditional construction methods: ishiba-date, where column bases rest directly on stones, and niho-korobi, which angles columns uniformly outward in two directions. Unlike conventional framing, these inclined supports require every beam to be calculated in three dimensions, hand-marked, and drawn full-scale before cutting to ensure load distribution along diagonal vectors.
Stock photo for illustration only, not from the actual event
The use of unfixed column bases demonstrates a brilliant adaptation of historical wisdom to modern structural engineering. By allowing the structure to absorb seismic movement rather than rigidly resisting it, the building functions as an early form of base isolation, mirroring modern earthquake-resistant engineering concepts.
The roof is clad in Corten steel, whose oxidizing surface develops a richer texture over years of exposure. Overhead, an exposed roof structure reveals larch timber felled on the slopes of the Yatsugatake mountain range, while red pine taiko beams form a geometric framework shaped by the wood's natural properties, keeping the scent of timber present throughout.
"The building's formal starting point is the sumo ring at Mizu-waka-su Shrine on Oki Island in Shimane Prefecture..."
Sobokuya
Sobokuya handcrafted all joinery in-house, enabling the surrounding landscape to merge with the interior space. When panels slide open, wind and natural light pass directly through, maintaining a direct physical connection to the valley. The design's formal inspiration stems from the sumo ring at Mizu-waka-su Shrine on Oki Island in Shimane Prefecture, which founding principal Hisashi Imai visited during the design phase.
Hand-chiseled surfaces introduce individual character, leaving visible carpenter tool marks on the finished work. By combining natural materials, traditional techniques, and handmade details, the office is intended to age harmoniously alongside its mountainous setting in Hokuto, Yamanashi Prefecture, Japan.
Source: designboom
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