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Floor Plan

Click the image to view as PDF. Plan-View
Location East Wing B1F
Size (sq.m) 195 m²

Capacity and Rates (for conference)

Capacity For conferences (classroom style) 120
For conferences (theater style) 180
For conferences (hollow square) 60
Rates For conference (2 hours) Regular Rate: 162,000 yen
Discount Rate*: 129,600 yen
For conferences (half day) Regular Rate: 270,000 yen
Discount Rate*: 216,000 yen
For conferences (full day) Regular Rate: 540,000 yen
Discount Rate*: 432,000 yen

Capacity and Rates (for banquets)

Capacity For banquets (circle table style) 100
For banquets (buffet style) 150
Rates For banquets (2 hours) Regular Rate: 75,600 yen
Discount Rate*: 56,700 yen
For banquets (for 1 additional hour) Regular Rate: 37,800 yen
Discount Rate*: 28,350 yen

Capacity and Rates (for exhibitions)

Rates For exhibitions Regular Rate: 648,000 yen
Discount Rate*: 518,400 yen
For exhibitions
(off-peak season: Jan, Feb, Aug)
Regular Rate: 486,000 yen
Discount Rate*: 388,800 yen

*Discount rates are applicable for IHJ members and those whose use of facilities meets the criteria of the public interest purposes of the I-House. Please contact the I-House for further information.
*The prices include consumption tax (as of April 1, 2014).
*The above-mentioned prices are subject to a 10% service charge.

Floor Layout


The spacious Iwasaki Koyata Memorial Hall with views of the garden can be used for conferences, lectures, concerts and other large functions.

Inquiries and Reservations

Banquet Reservations
International House of Japan
TEL: 03-3470-4616 (10:00 am-7:00 pm)
FAX: 03-3470-3210