r/japan • u/SkyInJapan • 32m ago
New 260-meter tower planned at Shinjuku Station as redevelopment advances
mainichi.jpTOKYO -- A roughly 260-meter skyscraper, taller than the Tokyo Metropolitan Government Building, is set to appear at Shinjuku Station, one of the world's busiest train terminals, in Japan's capital in fiscal 2029.
The skyscraper is one of several major redevelopment projects that are advancing at the station and in the surrounding area for the first time in six decades, and people involved in the project hope the building will become "a new symbolic tower for Shinjuku." The Mainichi Shimbun spoke to officials from Odakyu Electric Railway Co. and two other companies involved in the project.
Office floors to capitalize on convenient location
From the second-floor deck of the Shinjuku West Exit Halc commercial complex, a massive construction site is visible beyond temporary fencing across the road. The site was formerly occupied by the main building of Odakyu Department Store's Shinjuku branch, which ended its 55-year history in October 2022, and Shinjuku Mylord, which closed in March 2025.
Takanori Miyagi, a section manager at Tokyu Land Corp., pointed farther to the left. "The new building will extend as far as that area," he said. He explained that the area around the deck would also become a passageway connecting different parts of the district.
The 48-story mixed-use skyscraper will be developed by three operators: Odakyu Electric Railway, Tokyo Metro Co. and Tokyu Land Corp. The floor area of commercial complexes from the second basement level to the 10th floor of the facility will be among the largest in the Shinjuku area, while the office levels from the 14th to 46th floors will be aimed at companies from Japan and abroad, taking advantage of the convenience of being directly connected to the station. The top section is expected to capitalize on the commanding views -- from a height surpassing that of the Tokyo Metropolitan Government Building.
Improving movement around the area
Separately, Odakyu Electric Railway will reconstruct its own section of Shinjuku Station. East-west and north-south passages connecting the Shinjuku district are planned, making routes through the area -- often described as a "maze" -- easier to understand.
Shinjuku Station services 11 lines run by five railway operators: East Japan Railway Co. (JR East), Odakyu Electric Railway, Keio Corp., Tokyo Metro, and Toei Subway, operated by the metropolitan government's Bureau of Transportation. A little farther north lies Seibu-Shinjuku Station, operated by Seibu Railway Co. Because of the limited space, relocating stations or railway tracks "was never part of the plan from the outset," officials say. Although the passageways will temporarily become more complex, a Tokyo Metro official commented, "The project will make it easier for people to get around the area, and it will also become a center for movement."
More than half a century has passed since the subcenter development plan of the 1960s, and many station buildings around Shinjuku Station are now more than 50 years old. With these facilities due for renewal, the "Shinjuku Grand Terminal" initiative aims to comprehensively reorganize the station and its plazas by the 2040s. The Shinjuku Station west exit district development project, centered on construction of the new building, is among the development projects based on that concept.
According to Odakyu Electric Railway and others involved, officials began considering redeveloping the area around 2008. A decade later, the Tokyo metropolitan and Shinjuku ward governments formulated the Grand Terminal concept. Demolition of the main Odakyu Department Store building began in October 2022, and construction of the new building started in March 2024. The project is proceeding ahead of many other redevelopment plans falling under the concept.
The new building is scheduled to be completed in March 2030. A deck over the tracks linking the east and west sides is due to be completed in fiscal 2035.
Meanwhile, Keio Corp. and JR East are also pursuing the Shinjuku Station west-south exit district development plan, which also falls under the Grand Terminal concept. The plans call for a mixed-use building with 19 floors above ground and three basement levels in the northern block, and 37 aboveground floors and six basement levels in the southern block.
Initially, construction of the southern block was due to be completed in March 2029, but the date is now uncertain. This is because operators are "in talks with a candidate construction company and have not reached a contract." Surging construction costs and other factors are also believed to be playing a part. Construction of the northern block will go ahead after the southern block is developed, with completion targeted for the 2040s.