W350 Project

{{Infobox building | name = W350 Project | native_name = | native_name_lang = | logo = | logo_size = | logo_alt = | logo_caption = | image = | image_size = | image_alt = | image_caption = | pushpin_map = Japan | pushpin_map_alt = | map_caption = Location within Japan | pushpin_mapsize = | pushpin_label = | pushpin_mark = | pushpin_relief = | former_names = | alternate_names = | etymology = | status = Proposed | cancelled = | topped_out = | building_type = Skyscraper | architectural_style = | classification = Plyscraper | location = | address = | location_city = Tokyo | location_country = {{Flagicon|Japan}} Japan | coordinates = {{coord|35|39|10|N|139|50|22|E}} | altitude = | current_tenants = | namesake = | groundbreaking_date = 2024<ref name=":3">{{cite web |title=W350 Tower |url=https://www.skyscrapercenter.com/building/w350-tower/32377 |website=Skyscraper center |access-date=3 September 2021}}</ref> | construction_stop_date = | est_completion = 2041<ref name=":3" /> | topped_out_date = | completion_date = | opened_date = | inauguration_date = | relocated_date = | renovation_date = | closing_date = | demolished_date = | cost = $5.6 billion | ren_cost = | client = | owner = | landlord = Sumitomo Forestry | affiliation = | height = {{convert|350|m|ft|abbr=on}} | architectural = | tip = | antenna_spire = | roof = | top_floor = | observatory = | diameter = | circumference = | weight = | other_dimensions = | structural_system = | material = Wood | size = | floor_count = 70 | floor_area = {{convert|455000|m2|sqft|abbr=on}} | elevator_count = | grounds_area = | architect = | architecture_firm = Nikken Sekkei | developer = | engineer = | structural_engineer = | services_engineer = | civil_engineer = | other_designers = | quantity_surveyor = | main_contractor = | awards = | designations = | known_for = | ren_architect = | ren_firm = | ren_engineer = | ren_str_engineer = | ren_serv_engineer = | ren_civ_engineer = | ren_oth_designers = | ren_qty_surveyor = | ren_contractor = | ren_awards = | number_of_rooms = | parking = | website = | embed = | embedded = | references = | footnotes = }} The '''W350 Project''' is a proposed wooden skyscraper in central Tokyo, Japan, announced in 2018. The skyscraper is set to reach a height of 350 meters with 70 floors, which upon its completion will make it the tallest wooden skyscraper, as well as Japan's tallest building. The skyscraper is set to be a mixed-used building including residential, office and retail space.<ref name=":0">{{cite web |last1=Ravenscroft |first1=Tom |title=World's tallest timber tower proposed for Tokyo |url=https://www.dezeen.com/2018/02/19/sumitomo-forestry-w350-worlds-tallest-wooden-skyscraper-conceptual-architecture-tokyo-japan/ |website=de zeen |accessdate=6 May 2020}}</ref><ref name=":2">{{cite web |title=Japan plans world's tallest wooden skyscraper |url=https://constructionclimatechallenge.com/2018/04/10/japan-plans-worlds-tallest-wooden-skyscraper/ |website=Construction Climate Challenge |publisher=Copyright AB Volvo 2018 |accessdate=6 May 2020 |archive-date=21 September 2020 |archive-url=https://web.archive.org/web/20200921132621/https://constructionclimatechallenge.com/2018/04/10/japan-plans-worlds-tallest-wooden-skyscraper/ |url-status=dead }}</ref> It is scheduled to be completed in 2041, to mark Sumitomo Forestry's 350th anniversary.<ref>{{Cite web|url=https://www.world-architects.com/en/architecture-news/headlines/a-wooden-supertall-proposed-for-japan|title= A Wooden Supertall Proposed for Japan|date=15 February 2018|accessdate=25 November 2024|website=World-Architects}}</ref>

==Proposal== The plan calls for the building to be made of 90% wood with the rest being steel. Steel braces will be used to enhance resistance to wind and earthquakes, as the area has high levels of seismic activity. One advantage of wood is that timber-based structures have proven to be very resistant to earthquakes. The project requires 185,000 cubic meters of timber (or 6.5 million cubic feet<ref name="telegraph 2018/02/14">{{cite web |last1=Ryall |first1=Julian |title=Japanese company plans world's tallest wooden building |url=https://www.telegraph.co.uk/news/2018/02/14/japanese-company-plans-worlds-tallest-wooden-building/ |website=The Telegraph |accessdate=6 May 2020}}</ref>), and plans to revitalize forestry and timber demand in Japan.<ref name=":0"/><ref name=":2" /> The choice of wood, aside from aesthetic and seismic concerns, is part of a larger movement aiming to "change cities into forests".<ref name=":0"/> Wooden structures are also easier to rebuild or replace than concrete structures if it collapses.<ref name="telegraph 2018/02/14"/> Two-thirds of Japan is covered by forest, making it the 2nd most tree-covered country of the OECD countries after Finland. Most of Japan's cedars and cypresses were planted after the Second World War and are now reaching maturity.<ref>Nguyen Trung, [https://readtoolead.com/worlds-tallest-wooden-skyscraper-planned-in-tokyo/ World's tallest wooden skyscraper planned in Tokyo], ''Redtoolead.com'', 21 July 2019</ref>

The skyscraper is designed by the architectural firm Nikken Sekkei, and will be built by the developer Sumitomo Forestry.<ref name=":0"/><ref name=":2" />

Its construction is estimated to cost USD 5.6 billion.<ref name=":0"/><ref name=":2" />

==References== {{Reflist}}

==External links== *{{cite web |title=W350 Tower |url=https://www.skyscrapercenter.com/building/w350-tower/32377 |website=skyscrapercenter |publisher=2020 Council on Tall Buildings and Urban Habitat |accessdate=6 May 2020}} *[http://sfc.jp/english/news/pdf/20180214_e_01.pdf Changing Cities into Forests: Creating Environmentally-Friendly and Timber-Utilizing Cities - New Development Concept W350 Plan for Wooden High-Rise Building] {{Webarchive|url=https://web.archive.org/web/20201021073349/https://sfc.jp/english/news/pdf/20180214_e_01.pdf |date=2020-10-21 }}, ''Sfc.com''

Category:Skyscrapers in Tokyo Category:Wooden architecture Category:Plyscraper Category:Proposed skyscrapers in Japan