Photo: Yokohama cityscape / 淳平 筈井 (CC BY 2.0) via Wikimedia Commons
Kamiseya Access Guide: How to Reach GREEN×EXPO 2027 Yokohama
GREEN×EXPO 2027 takes place on the former Kamiseya Communications Facility site, a roughly 100-hectare stretch of land straddling Asahi and Seya wards in Yokohama. The first thing most visitors run into is a simple question: how do you actually get there?
The short answer is that there is no station right next to the grounds — so planning your route in advance makes the day far smoother.
This guide pulls together the train-plus-shuttle, car, and airport options in practical terms, based on the official visitor transport plan (3rd edition, July 31, 2026).
Why there is no station at the gate, and the smart way in
The Kamiseya site is a large former US military communications base, and no railway runs across it. There is no station that delivers you straight to the grounds, and even the nearest rail stations are not within walking distance — that is the starting point for everything below.
The organizers’ answer is a reservation-only shuttle bus linking four nearby stations to the venue. For most visitors, the basic route is “train to the nearest station, then shuttle from there.”
If you are not sure where to start, here is the bottom line.
- By public transport — take a train to Seya or Mitsukyo (Sotetsu Line), Tokaichiba (JR Yokohama Line), or Minami-machida Grandberry Park (Tokyu Den-en-toshi Line), then transfer to the shuttle.
- By car — both the venue car parks and the shuttle are reservation only. You cannot simply turn up on the day and expect to park or board. On busy days, park-and-ride from suburban malls is another option.
- Alternatives to the shuttle — if you live nearby, there are about 1,700 bicycle parking spaces, and Seya Station is roughly a 30-minute walk from the venue. These options free you from shuttle reservations and traffic.
- To avoid crowds — weekdays, especially Tuesday to Thursday, tend to be calmer. For a detailed outlook, see the crowd forecast.
Train plus the 4-station shuttle (Seya, Mitsukyo, Tokaichiba, Minami-machida Grandberry Park — reservation only)
The shuttle runs from these four stations.
| Station | Line | Position relative to the venue |
|---|---|---|
| Seya | Sotetsu Main Line | Close to the southern side |
| Mitsukyo | Sotetsu Main Line | Next stop to Seya; also from the south |
| Tokaichiba | JR Yokohama Line | From the northeast |
| Minami-machida Grandberry Park | Tokyu Den-en-toshi Line | From the west; a shopping complex makes the wait easy |
Picking your station
In practice, choose your station by the transfers and travel time from home.
- From central Yokohama, Shinjuku or Shibuya — the Sotetsu or Den-en-toshi lines work well.
- From the Machida or Hachioji direction — the JR Yokohama Line is the natural choice.
Service scale and reservations
According to the official plan, service scales up to roughly 90 buses a day on weekdays and around 160 a day at peak times.
To spread the load, routes starting from Yokohama Station and Shin-Yokohama Station are also under consideration — the idea being to add entry points so that visitors do not all funnel into the same four stations.
One thing to keep in mind: the shuttle is reservation based. It is designed around booking a seat in advance.
Reservations opened on September 18, 2026 and are now being accepted (official announcement). Steps are in the shuttle bus & parking guide; check the official access page for the latest before you set out.
Private cars, the venue car parks (about 5,690 spaces north + 540 west, reservation only), motorcycles and bicycle parking
If you would rather drive, the venue has car parks too. Here is the scale.
| Category | Spaces |
|---|---|
| North car park (private cars) | About 5,690 |
| West car park (private cars) | About 540 |
| Motorcycles | About 1,000 |
| Accessible parking | About 200, plus about 110 priority spaces |
| Group buses | About 410 north + about 220 west (west-lot bus spaces may be converted to car spaces depending on bookings) |
| Bicycle parking | About 1,700 |
That is roughly 6,200 car spaces in total (Visitor Transport Implementation Plan, 3rd edition, July 31, 2026), which sounds generous — but again, advance reservation is the key. The venue car parks are for booked vehicles only; they are not set up for hunting down a free spot on the day.
General reservations opened on September 18, 2026 and are now being accepted (group-bus parking opened August 3, 2026).
For anyone living within cycling distance, there is also bicycle parking for about 1,700 bikes. If you are coming from nearby, a bicycle sidesteps both traffic and reservations, which makes it a surprisingly strong option.
Park-and-ride at peak times (Aeon Mall Yamato, Sagami-ono and more) and partner car parks
During peak periods the venue car parks alone are expected to fill up. The official peak days are April 29, May 2–3 · 23 · 29–30, June 6 · 13, August 14–15, September 4 · 11–12 · 18–20 · 23 · 25–26 — 19 days in total (official access page, confirmed October 4, 2026). Park-and-ride operates only on these 19 days (¥3,000 per car, advance reservation required). To handle the extra demand, the organizers plan park-and-ride: leave your car a little away from the grounds and continue to the venue by shuttle or bus.
The official plan names sites such as:
- Aeon Mall Yamato / Ito-Yokado Yamatotsuruma — about 500 spaces combined
- Sagami-ono — about 200 spaces
On top of these, nearby partner car parks are expected to be used as well. If you are driving during a busy stretch, it helps to keep both options in mind — the on-site car park and the “park further out and transfer” approach — so the day goes smoothly.
Details on reservations and operations at each site will be announced later.
Venue layout: North Area and South Area (updated October 2026)
An updated venue map was published on October 9, 2026, showing the grounds organized into a North Area and a South Area. The update also revealed the names of event facilities (Festival Stage, etc.), pathways (World Loop, Symbol Street, Izumigawa Street, and others), and outdoor exhibitions maintained by the organizers (World Loop, Hajimari-no-Mori, etc.). The latest zoning map is available on the official website.
Entrance gate consolidated into one location (confirmed October 2026)
The Association’s briefing for the travel industry indicated that the entrance gate will be consolidated into a single location (TrabelVoice, October 8, 2026, confirmed October 7).
- From the north car park to the gate: approximately 200–700 m
- From the west car park to the gate: approximately 1–1.5 km
If you are using the west car park, note the longer walk to the entrance. Comfortable shoes are a must (what to bring guide).
The walking circuit inside the venue is approximately 3 km (TrabelVoice, October 8, 2026, confirmed October 8, 2026). The Association is planning mobility-support systems for elderly visitors. With the grounds spanning about 100 hectares, plan for regular breaks along with comfortable shoes.
Direct bus (planned — details TBD)
In addition to the four-station shuttle, direct buses from major terminals to the venue are also planned (official access page; City of Yokohama press release, September 29, 2026; confirmed October 4, 2026).
- Shin-Yokohama Station → venue
- Yokohama Station → venue
- Central Yokohama waterfront area (Minato Mirai / Kannai district) → venue — a sightseeing-loop route via Sakuragicho Station and major Minato Mirai hotels has been proposed
- Haneda Airport → venue
Operators, timetables, fares, and reservation method are all still being finalized; details will be announced officially in due course. If you are coming from far away or from abroad and are unsure which of the four shuttle stations to aim for, a direct bus — once operational — could let you reach the venue from Yokohama Station or Shin-Yokohama Station without any transfers. This site will follow up as more information becomes available.
Routes from Haneda, Narita and other directions
Coming from far away, or from abroad, the basic approach is either to head into central Yokohama first and then make for one of the four stations, or — once the direct buses above are running — to take a direct bus from Yokohama Station, Shin-Yokohama Station, or Haneda Airport straight to the venue.
- From Haneda Airport — travel toward Yokohama, then take the Sotetsu, JR Yokohama or Tokyu Den-en-toshi line to one of the four stations. Once the direct bus service starts, you may also be able to go from Haneda Airport to the venue without transferring.
- From Narita Airport — head toward Yokohama or Tokyo first, then aim for the four stations just as you would from Haneda, or use a direct bus from Yokohama Station or Shin-Yokohama Station.
Airport access options to Kamiseya are still limited, but the planned direct buses are expected to widen the choices considerably. Check alongside the latest transport details before you set out.
When do reservations open? (Open since September 18, 2026)
You will have noticed the phrase “reservation only” several times above. Here is the schedule at a glance.
| Item | Timing / status |
|---|---|
| Advance ticket sales | Since March 19, 2026 (tickets are not tied to a specific date for now) |
| Shuttle bus seat reservations | Open since Friday, September 18, 2026 (now accepting) |
| Venue car park reservations | Open since Friday, September 18, 2026 (now accepting) |
| Date-and-time visit reservations | Open since Friday, September 18, 2026 (now accepting) |
Both the shuttle and the venue car parks assume advance booking — and reservations for both opened on Friday, September 18, 2026 and are now being accepted (official announcement). For date-and-time reservations, see the how to make a timed-entry reservation; for the shuttle and parking, see the shuttle bus & parking guide.
This is the part that tends to update quickly once it gets moving. Ticket types and prices are collected on the tickets page, and the latest transport and reservation steps will go on the official access page. As one last step before the day, always check the most recent version.
Frequently asked questions
How do I get to the former Kamiseya Communications Facility?
There is no railway station within walking distance. The standard way is train + shuttle bus. Shuttle buses (advance reservation required) run from four stations: Seya and Mitsukyo on the Sotetsu Line, Tokaichiba on the JR Yokohama Line, and Minami-machida Grandberry Park on the Tokyu Den-en-toshi Line. If driving, use the venue car parks on the north and west sides (also advance reservation required).
What is the nearest station to the Yokohama Horticultural Expo?
There is no station directly connected to or within walking distance of the venue (former Kamiseya Communications Facility). The four stations served by the official shuttle bus — Seya, Mitsukyo (Sotetsu Line), Tokaichiba (JR Yokohama Line), and Minami-machida Grandberry Park (Tokyu Den-en-toshi Line) — are the effective “nearest stations.” Choose based on which line is most convenient from your starting point. For a station-by-station comparison, see choosing your shuttle station. Shuttle reservations have been open since September 18, 2026.
What is the address of the venue?
The venue spans the former U.S. military communications facility site in Asahi and Seya wards, Yokohama — roughly 100 hectares. The address is near Seya-cho, Seya-ku, Yokohama. No railway station is within walking distance.
When did shuttle bus and parking reservations open?
Reservations opened on Friday, September 18, 2026, and are now being accepted (official announcement). Timed-entry, shuttle bus, and parking reservations all started on the same day.
How do I access the GREEN×EXPO 2027 venue?
The venue is the former Kamiseya Communications Facility (Asahi-ku / Seya-ku, Yokohama). With no direct rail station, you can reach it by train + shuttle bus from four stations (Seya, Mitsukyo, Tokaichiba, Minami-machida Grandberry Park) or by car to the venue car parks (north: approx. 5,690 spaces; west: approx. 540 spaces). Both require advance reservations, open since September 18, 2026.
For an overview of GREEN×EXPO 2027 and what to look forward to, see What is GREEN×EXPO 2027?. If you want to time your visit around the quieter days, pair this with the crowd forecast.
This is an unofficial guide. Always confirm the final details of access, reservations and tickets with official announcements.