Banquet & Conference Rooms
We can meet all your
needs!

You can choose from a total of seven venues, including a large multi-purpose hall that can accommodate up to 500 people and a conference room with a great view and a sense of openness, to suit your purpose, purpose, and number of people.
Medium banquet/meeting room Grand Blanc (180 square meters)
Small banquet/meeting room Maple (87 square meters)Everything from meetings to banquets, lodging, and breakfast is completed in the hotel. Even with a hectic schedule, you can spend your day without wasting time.
Fastest and Shortest Route!
The closest hotel to Tokyo Big Sight.
Floor Layout


Usage Fees
| Venue Name | Seated Number of people |
Standing Number of people |
Theater Number of people |
School Number of people |
The letter B Number of people |
U-shape Number of people |
Banquet use Basic 2 hours |
Extension 1 hour | Conference use Basic 4 hours |
Conference use Basic 8 hours |
Conference use Basic 12 hours |
extent | 3.31 square meters | height |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Iris (Entire) |
320 | 500 | 500 | 432 | 120 | 96 | ¥231,000 | ¥88,000 | ¥605,000 | ¥715,000 | ¥935,000 | 669 | 202 | 5.1 |
| Iris (2/3) |
200 | 240 | 260 | 270 | 78 | 66 | ¥154,000 | ¥55,000 | ¥484,000 | ¥594,000 | ¥814,000 | 446 | 135 | 5.1 |
| Iris (1/3) |
100 | 100 | 156 | 108 | 60 | 42 | ¥88,000 | ¥33,000 | ¥352,000 | ¥462,000 | ¥682,000 | 223 | 67 | 5.1 |
| eucalyptus | - | - | 30 | 18 | 18 | 15 | - | ¥55,000 | ¥88,000 | ¥110,000 | 40 | 12 | 2.9 | |
| gentian | - | - | 50 | 36 | 30 | 24 | - | ¥77,000 | ¥110,000 | ¥143,000 | 70 | 21 | 2.9 | |
| cattleya (type of orchid) | - | - | 50 | 36 | 30 | 21 | - | ¥77,000 | ¥110,000 | ¥143,000 | 67 | 20 | 2.9 | |
| lily magnolia (Magnolia quinquepeta, Magnolia liliiflora) | - | - | 40 | 18 | 24 | 18 | - | ¥66,000 | ¥99,000 | ¥132,000 | 55 | 17 | 2.9 | |
| maple | - | - | 50 | 36 | 36 | 30 | - | ¥88,000 | ¥121,000 | ¥154,000 | 87 | 26 | 2.9 | |
| Grand Blanc | 91 | 100 | 54 | 72 | 54 | - | ¥88,000 | ¥33,000 | ¥352,000 | ¥462,000 | ¥682,000 | 180 | 54 | 2.7 |
*Prices have been revised effective April 1, 2024.
*Prices shown include service charge and tax.
*Prices shown for Iris Grand Blanc include sound and lighting fees. (Eucalyptus, Gentian, Cattleya, Magnolia, Maple: without sound equipment)


Layout Example

Can be divided into 3 sections
Rich in functionality
Large multi-purpose hall

This large multipurpose hall boasts a maximum capacity of 500 people. The large, high-ceilinged space can be divided into three sections, which can be used functionally for different purposes and play a major role in the smooth progress and success of your event.

The view that spreads across the windows creates a sense of openness.
We offer sophisticated hospitality in the middle banquet hall facing the magnificent Rinkai Fukutoshin.

The room has a quiet, calm and warm atmosphere.
It is recommended for use as an anteroom or office.

The layout of the venue can meet a variety of requests
such as various types of meetings according to the scene.

The sunny and bright small banquet hall can be used for intimate gatherings and
meetings.

The venue, which is illuminated by bright sunlight through large windows, is a flexible space that can be used for training and in-house meetings.

Multiple windows overlook Tokyo Big Sight.
This corner room with a great view is an ideal venue for inviting customers for business meetings and
holding various seminars.
Tokyo bay Ariake Washington Hotel (Tokyo)Hospitality
Hotel-quality hospitality with spectacular food and service
We can help you with school events, welcome and farewell parties, anniversary celebrations,
and many other occasions.

Banquet Plan
- Season Plan ~ Spring, Summer, Autumn, Winter Enjoy the flavors of the season!
- buffet style
(standing or seated) - all-you-can-drink
(2 hours) - Number of people 30 to 500
- Fee 11,000 yen per person
(Service charge and tax included) - Place: Iris, 3rd floor, Grand Blanc, 21st floor
-
This plan adds a touch of elegance to your special events, such as invitation-only gatherings and award ceremonies with numerous guests.
With sophisticated hospitality cuisine and the meticulous service only a hotel can provide, we create banquets where every moment until your departure becomes a cherished memory.
- Holiday PlanSaturday, Sunday, and holidays only
- buffet style
(standing or seated) - all-you-can-drink
(2 hours) - Number of people 30 to 500
- Price 8,800 yen per person
(Service charge and tax included) - Place: Iris, 3rd floor, Grand Blanc, 21st floor
-
This Holiday Plan offers exceptional value for gatherings such as alumni reunions, prefectural associations, and other group events.
Enjoy a relaxing time with hotel-quality cuisine and heartfelt service.
- CateringAssistance with business travel parties
- buffet style
(standing or seated) - all-you-can-drink
(2 hours) - Number of persons 100 or more
- Price per person 9,900 yen and up
(Service charge and tax included) - Location
We will visit the location of your request, mainly in the 23 wards of Tokyo. -
We offer two catering service plans for groups of 100 or more.
We deliver party menus and services to your preferred location, including Tokyo Big Sight, various event spaces, and offices.
Please feel free to consult us about your desired menu and delivery location.
Focused on comfort
Relaxing space
Functional design and elegant, soothing indirect lighting create a healing atmosphere.
Accommodations are available after banquets and meetings. With a variety of rooms available,
you can choose the grade that best suits your position.

Usage Scenes
We can provide consultation for these and other scenes.

- Conferences, Seminars, Lectures
-
We can flexibly meet the needs of our customers, from business negotiations and internal meetings with customers to seminars and lectures for large groups of invited guests.

- Training and resolution meeting
-
Each room is equipped with a projector, screen, and whiteboard, essential items for training. We can also provide a wide range of services such as organizing a kick-off party to raise the spirits of the members.

- Exhibitions & Events
-
Please feel free to contact us at Contact usto discuss events and networking receptions following expos, symposiums, and conventions held at Tokyo Big Sight.

- New Year's party, summer party, year-end party
-
We will create a peaceful moment for your friends and family, whether it is a New Year's party to celebrate the start of a new year, a summer party to forget the summer heat, or a year-end party to celebrate the end of a long year.

- Reunion/reward party
-
Reuniting with classmates as well as former teachers is one of the things to look forward to. We are also available for custom-made parties to fulfill your needs.

- catering
-
Two types of food menus are available: the Standard Plan and the Premium Plan. We can also arrange menus according to your wishes. We will add a smile to your face with the dishes we have prepared with sincerity.
Three Promises
We will accurately grasp every request and make the most appropriate proposal to realize your wishes, leading to the success of your party through careful discussions up to the day of the event.
Based on preliminary discussions with the client, our staff, with their expertise and knowledge of the venue, will provide a comfortable and convenient meeting room environment.
With our chef's specialties and the hotel's attentive service, we will make your banquet a memorable experience from the moment you arrive to the moment you leave.
Frequently Asked Questions
- For reservations:
- Prices and
Hours of Operation - Venue Facilities and
Equipment
-
I'd like to check availability. Can I do that on the Homepage?
-
HomeThis information is not listed on the website. Please contact us by phone, email, or through the form at Contact us. Contact us.
03-5564-0111またはenkai@ariake-wh.comへご連絡ください. -
When can I make a tentative reservation?
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Reservations are accepted one year in advance. (e.g., if it is April 1, it will be April 1 of the following year)
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How long can I make a tentative reservation?
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The tentative reservation period is one week from the date of receipt of the tentative reservation.
-
How difficult is the venue application process?
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You only need to fill out one confirmation of use form to complete the process.
We will send it to you by e-mail or fax at the time of application. -
When will cancellation fees begin?
-
・After booking through 91 days prior to the event date・・・10% of the total quoted amount at the time of booking
・90 to 61 days prior to the event date・・・20% of the latest total quoted amount
・60 to 31 days prior to the event date・・・50% of the latest total quoted amount
・30 to 11 days prior to the event date・・・60% of the latest total estimated amount
・10 to 2 days prior to the event date・・・80% of the latest total estimated amount
・The day before to the day of the event・・・100% of the latest total estimated amount -
Can I preview the venue?
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We are happy to arrange a venue tour at a time when no other guests are using the space. We’ll be happy to provide you with information on availability, so please feel free to contact us at Contact us.
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Are the rates different for weekdays and holidays?
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The venue fee does not change depending on the day of the week.
There is no change in the venue charge, but we offer special Holiday deals for banquets held on Saturdays, Sundays, and holidays. -
Is it available late at night or early in the morning?
-
The room is available 24 hours a day, but please consult with us about your preferred time.
Please note that the usual 30% surcharge applies to late-night and early-morning hours, excluding 9:00-21:00.
Please note that additional charges may apply depending on the time of day. -
What is your payment method?
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Payment can be made in advance by bank transfer or on the day of the event (cash or credit card).
-
Will there be Internet access available at the venue?
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Wireless LAN is available free of charge.
Two separate dedicated lines are available per venue, except for Grand Blanc on the 21st floor, and can be arranged for 33,000 yen per line.
(There is no dedicated line available for Grand Blanc on the 21st floor.) -
Can I ask you to set up desks, chairs, etc. and return them to their original state?
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The hotel will take care of the basic set-up of the venue in advance. There is no need to return the venue to its original state.
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Is it possible to send luggage to the venue in advance? Can I send my luggage from the venue?
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You can pick up or drop off your baggage the day before the event. We do not accept baggage that has been paid for on delivery. Luggage can also be sent from the venue.
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Can I print out data or make copies of materials on the day of the event?
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We do not allow data to be printed out.
Photocopying is available for a fee. -
What should I do with the trash after the event?
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If you pack up your garbage, the hotel will dispose of it. However, oversized trash will not be accepted. Please understand this in advance.
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Is there a cloakroom?
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There is no cloakroom available. Please store your belongings by yourself.
(It is possible to set up racks and luggage storage in the venue. Please consult with us in advance if you wish to do so.) -
How early can I enter the venue?
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The room can be used 30 minutes prior to the reserved time.
Please make your reservation at a time that allows for preparation and move-out. -
Is there parking available?
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Parking is available in the hotel basement levels B1 to B3. Please use these levels.
・Free for up to 6 hours with meeting reservations
・Free for up to 2 hours with banquet reservations -
Is there a smoking area in the museum?
-
Please use the common smoking area on the 1st floor.
Access & Directions
Yurikamome New Transit "Tokyo Big Sight Station"
or 3-minute walk from "Ariake Station"
・Approx. 18 minutes from Tokyo Station
Transfer to Rinkai Line at Keiyo Line "Shin-Kiba Station" and get off at "Kokusai-Tenjijo Station"
・Approx. 23 minutes from Shinagawa Station
・Transfer to the Rinkai Line at Yamanote Line "Osaki Station" and get off at "Kokusai-Tenjijo Station"
・Approximately 25 minutes from Shinjuku Station
Take the direct Rinkai Line via the Saikyo Line and get off at "Kokusai-Tenjijo Station"
・Approximately 25 minutes from Shimbashi Station
Take the Yurikamome New Transit Line and get off at "Tokyo Big Sight Station"
