Who approved the change and what does it cover?

Tokyo approved a city‑planning change for the Shinagawa Station West Exit (Takanawa) B‑1 area. It clears Seibu Real Estate to advance a 31‑story mixed‑use tower with office, hotel, retail, and the district’s largest MICE facility. The decision also clarifies sequencing with zones A, C, and D for coordinated delivery.

When will construction and openings occur?

Seibu aims to break ground in FY2028 in the B‑1 area. Phased openings follow across zones: C in 2028, A in 2029, and D in 2030. This staging spreads risk, supports tenant fit‑outs, and allows operators to scale services as demand builds across multiple fiscal years.

Why is the MICE facility important for Tokyo?

A larger MICE venue strengthens weekday demand and extends stays tied to conferences and exhibitions. It supports hotels, dining, retail, and transport services near the station. For the city, it diversifies tourism toward business travel, which tends to be less seasonal and more predictable for staffing and planning.

What should investors monitor next?

Focus on detailed design approvals, permit timing, contractor awards, and pre‑leasing across office, hotel, retail, and events space. Also track procurement updates, construction milestones, and early event bookings. These markers indicate execution quality, revenue ramp potential, and the pace at which cash flows could stabilize after opening.

Law and Government

December 23: Shinagawa Station West Exit Redevelopment Secures Planning Change; Seibu to BreakGround

ByHuzaifa Zahoor December 23, 2025December 23, 2025

Tokyo’s approval of a city‑planning change for the Shinagawa Station West Exit (Takanawa) B‑1 area moves the Shinagawa Station redevel opme from plan to execution. The decision clears Seibu Real Estate to start a 31‑story mixed‑use tower in FY2028, featuring the district’s largest MICE facility. Phased openings are slated across zones: C in 2028, A in 2029, and D in 2030. For investors, this signals multi‑year capex and new office, hotel, retail, and event capacity at a core transport hub.