W350 Project

W350 Project
Location within Japan
General information
StatusProposed
TypeSkyscraper
ClassificationPlyscraper
Town or cityTokyo
Country Japan
Coordinates35°39′10″N 139°50′22″E / 35.65278°N 139.83944°E / 35.65278; 139.83944
Groundbreaking2024
Estimated completion2041
Cost$5.6 billion
LandlordSumitomo Forestry
Height350 m (1,150 ft)
Technical details
MaterialWood
Floor count70
Floor area455,000 m2 (4,900,000 sq ft)
Design and construction
Architecture firmNikken Sekkei

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. It is scheduled to be completed in 2041, to mark Sumitomo Forestry's 350th anniversary.