Gransta Tokyo Reopens Marunouchi B1 with 26 Shops and 13 Station-Only Brands

1. What actually changed at Gransta Tokyo

The section that reopened is the B1 underground Marunouchi gate area of Gransta Tokyo. Gransta's August notice says the previous shops in this part of the station closed on 18 January 2026 for the area renewal. The new version opened on 16 September under the concept “FAV ZAKA / Favorite MARUNOUCHIZAKA”.

The official launch material counts 26 shops in the renewed area. Ten are described as new brands, while 11 popular shops from before the renewal return in renewed or rebranded form. Thirteen of the shops are Tokyo Station-exclusive brands.

This is more than a cosmetic refit. The launch pushes fresh food made in demonstration kitchens, sweets, gifts, lifestyle goods and an art-oriented space, with all permanent shops promoting Gransta Tokyo-only products.

2. The location detail matters: this is inside the gates

The renewed zone is on B1 inside JR Tokyo Station's ticket gates. Gransta lists the nearest gates as the Marunouchi Underground Central Gate and Marunouchi Underground South Gate.

That matters because Tokyo Station has several shopping areas with similar Gransta branding. The separate Gransta Marunouchi area is outside the ticket gates; this newly reopened section is Gransta Tokyo inside the gates. If you are already changing trains or departing from Tokyo Station, the new zone can be an easy stop. If you are meeting someone outside the station gates, do not assume the shops are on the public concourse.

The safest move is to check the official Gransta floor information before heading across the station. Tokyo Station is large enough that “Marunouchi side” still leaves room for a considerable wrong turn.

3. New names include pasta, bakery, stationery and sweets

The opening list is deliberately broad. Among the new brands highlighted by Gransta are TOKYO PASTA STATION, The Little BAKERY Tokyo, the Hobonichi Techo Store and specialist sweet shops. The returning line-up also includes refreshed or rebranded names such as Fortnum & Mason and Henri Charpentier Atelier Tokyo.

Gransta is leaning hard into “made here” and “only here”. The official opening feature points to fresh pasta made in-store, bakery items, confectionery, stationery and craft goods designed specifically for the Tokyo Station location.

Individual products can sell out, and some limited items have their own purchase rules. Gransta specifically notes that some popular Hitotsubu Kanro products require a LINE digital numbered ticket. If one particular item is the reason for your visit, check that shop's current listing rather than assuming it will be a simple walk-up purchase.

4. Thirteen Tokyo Station-exclusive brands changes the souvenir game

Tokyo Station already has a reputation for destination shopping, and this renewal makes that even more explicit. Gransta says 13 brands in the new area are Tokyo Station-exclusive, while permanent shops across the renewed section are offering products described as Gransta Tokyo-only.

Examples in the launch feature range from a Hobonichi Weeks planner featuring the Suica Penguin and Tokyo Station's Marunouchi building to station-exclusive doughnuts, confectionery and traditional craft goods. Several products use Tokyo Station or rail motifs, making the area particularly relevant for travellers looking for gifts that feel more specific than generic airport souvenirs.

Prices and availability can change, and some products are seasonal or limited in quantity. Treat the official opening feature as a menu of ideas, not a guarantee that every highlighted item will be waiting on the shelf.

5. Do not discover this place five minutes before your train

The most practical consequence is time. A 26-shop underground cluster inside one of the world's busiest major stations is exactly the sort of place that can turn a quick snack stop into a much longer browse.

If you are departing Tokyo Station, allowing extra time gives you room to find the correct B1 gate area, deal with queues and still reach your platform without a sprint. If you are transferring through Tokyo, first check whether your route naturally passes the Marunouchi underground side; crossing the station solely for one shop may take longer than the map makes it look.

Shop opening times are not necessarily identical. Gransta's official shop pages are the better source for hours for a specific store, especially around holidays or special operating periods.

6. There is an opening campaign running through 29 September

Gransta is also running a JRE POINT renewal-opening campaign from 16 to 29 September 2026 for the 26-shop area. The official campaign page says registered participants receive one draw entry for every ¥2,000 spent at eligible shops after presenting a JRE POINT card or app.

The campaign is useful only if you already use JRE POINT and meet the entry conditions, so it should not drive a detour on its own. But for commuters or residents who were going to shop there anyway, it is worth checking the official campaign terms before paying.

7. Who should care about the reopening

Travellers get a larger and more distinctive last-stop option for food, gifts and station-specific souvenirs before boarding. Residents and commuters get a refreshed everyday shopping area after the January closure, including new food and lifestyle brands.

The opening is also a reminder that “Tokyo Station shopping” is not one single mall. Gransta Tokyo, Gransta Marunouchi and other station retail zones sit on different levels and on different sides of the ticket gates. Knowing whether a shop is inside or outside the gates can save a surprising amount of backtracking.

For this particular renewal, remember three things: B1, inside the gates, Marunouchi Underground Central/South gate side. Everything else is easier once you have those three details right.