Japan to build world’s tallest timber building by 2041

by Hannah Grogan on Feb 27, 2018 in Architecture , Developments , News
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[NEWS] Tokyo W350: the world’s tallest timber building

Japanese timber company, Sumitomo Forestry, has announced plans to construct a 350m tall wooden high rise, set to be completed by 2041. The building will be the tallest timber building to be made of its kind. The structure will span 70-storeys.

Symbolically named W350, the building (upon completion in 2041) will mark 350 years of operation for the company. W350 will be a mixed-use development and will be occupied by retail and office space, hotels as well as residences.


Local consultancy group, Nikken Sekkei Ltd. consulted on the building design, while Tsukuba Research Institute (Sumitomo Forestry's research and development facility), worked to develop the concept.

Strong enough to withstand earthquakes, the structure will be made of 90 per cent wooden materials, the rest being made of steel braces and beams. The amount of suggested timber used in the W350 plan totals 185,000 cubic metres. This, Sumitomo Forestry said, is the equivalent to approximately 8,000 wooden houses. Estimates put the construction cost at appropriately 600 million Yen.

W350 Rendering

W350 Rendering


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