Conference/Banquet

Room & Equipment Rates / Capacity


The prices include consumption tax and 15% service charge.

Banquet Room Rates

JPY (tax and service charge inclusive)

Upper row: Regular price
Lower row: Special price
For conferences For banquets For exhibitions
2 hours half day
(6 hours
between 9:00-16:00)
full day
9:00-21:00
1 additional hour 2 hours 1 additional hour Regular Off-peak
Jan.,
Feb.,
Aug.
Iwasaki Koyata
Memorial Hall
195m²
246,675
197,340
411,125
328,900
822,250
657,800
126,500
101,200
101,200
75,900
50,600
37,950
1,012,000
809,600
759,000
607,200
Kabayama
-Matsumoto Room
(All Rooms)
247m²
246,675
197,340
474,375
379,500
948,750
759,000
126,500
101,200
94,875
71,156
47,437
35,578
1,138,500
910,800
853,875
683,100
Kabayama
-Matsumoto Room
+ Room 2
+ Room 3
198m²
189,750
151,800
379,500
303,600
759,000
607,200
101,200
80,960
75,900
56,925
37,950
28,462
1,012,000
809,600
759,000
607,200
Kabayama
-Matsumoto Room
+ Room 2
/ Room 2 + 3 + 4
147m²
139,150
111,320
284,625
227,700
569,250
455,400
75,900
60,720
60,720
45,540
30,360
22,770
759,000
607,200
569,250
455,400
Kabayama
-Matsumoto Room
/ Room 2 + 3
/ Room 3 + 4
98m²
94,875
75,900
189,750
151,800
379,500
303,600
50,600
40,480
37,950
28,462
18,975
14,231
506,000
404,800
379,500
303,600
Room 2 / 3 / 4
51m²
47,437
37,950
94,875
75,900
189,750
151,800
25,300
20,240
22,770
17,077
11,385
8,538
253,000
202,400
189,750
151,800
Waiting Room
11.87m²
6,325
5,060
18,975
15,180
37,950
30,360





The prices include consumption tax and a 15% service charge.
*Special price (lower row) is for 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.
Rental projectors, screens and whiteboards, as well as drinks are available.
Audio equipment and alcoholic beverages are not available at the Lecture Hall and Seminar Rooms.
Request for a change in room layout is subject to an additional 20% charge.

(As of April 1, 2024)

Banquet Room Capacity

(capacity: persons)

Banquet Room Size
(sq.m)
Hollow-
square
Class-
room
Theater Round-
table
Oval-
table
Cocktail
Buffet
Sit-down
Buffet
Iwasaki Koyata
Memorial Hall
195m² 60 120 180 100 150 80
Kabayama-Matsumoto Room
+ Room 2 + 3 + 4
247m² 90 120 180 110 150 80
Kabayama-Matsumoto Room
+ Room 2 + 3
198m² 65 100 160 90 120 70
Kabayama-Matsumoto Room
+ Room 2
/ Room 2 + 3 + 4
147m² 45 75 120 70 30 90 60
Kabayama-Matsumoto Room
/ Room 2 + 3
/ Room 3 + 4
98m² 35 50 80 50 22 60 40
Room 2 / 3 / 4
 
51m² 24 24 40 20 18 30

Lecture Hall Room Rates & Capacity

JPY (tax and service charge inclusive)

Upper row: Regular price
Lower row: Special price
Style Capacity Size
(sq.m)
9am-12
13-17pm
18-21pm
full day 1 additional
hour
Hollow-
square
Class-
room
Theatre
Lecture Hall
Annex 2F
145m² 92,345
73,876
246,675
197,340
31,625
25,300
48 80 120
The prices include consumption tax and a 15% service charge.
*Special price (lower row) is for 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.
Audio equipment, rental projectors, screens and whiteboards, as well as drinks are available.
Alcoholic beverages are not available.

(As of April 1, 2024)

Seminar Room Rates & Capacity

JPY (tax inclusive)

Upper row: Regular price
Lower row: Special price
Style Capacity Size
(sq.m)
9am-12
13-17pm
18-21pm
full day 1 hour
Hollow-
square
Class-
room
Theatre
Seminar D
Annex 1F
Hollow-
square
for 24 53m² 28,600
22,880
74,800
59,840
11,000
8,800
24 24
Seminar E
Annex 1F
Hollow-
square
for 12 26m² 14,300
11,440
37,400
29,920
5,500
4,400
12
401
West Wing
4F
Hollow-
square
for 16 28.4m² 16,500
13,200
44,000
35,200
6,600
5,280
16
402
West Wing
4F
Oval-
table
for 12 19.9m² 11,000
8,800
30,800
24,640
4,400
3,520
12 (Oval-table style only)
403
West Wing
4F
Hollow-
square
for 16 28.6m² 16,500
13,200
44,000
35,200
6,600
5,280
16
404
West Wing
4F
Hollow-
square
for 24 44.0m² 26,400
21,120
68,200
54,560
9,900
7,920
24 30
403・404
West Wing
4F
Hollow-
square
for 34 72.6m² 41,800
33,440
112,200
89,760
34 42
The prices include consumption tax.
*Special price (lower row) is for 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.
Rental projectors, screens and whiteboards, as well as drinks are available.
Audio equipment and alcoholic beverages are not available.
Request for a change in room layout is subject to an additional 20% charge.

(As of April 1, 2024)

Equipment

JPY (tax inclusive)

Wired Internet access (Wi-fi available for free in all venues) 2,200 yen
Audio cable 1,100 yen
One microphone 2,200 yen
Additional microphones (2-8) 1,100 yen each
Stage for East Wing venues
(1,200 x 2,400 x 200H or 400H)
3,300 yen
Stage for Annex Lecture Hall
(1,800 × 2,400 × 200H)
5,500 yen
Whiteboard 1,100 yen
Grand piano “Yamaha” (tuning fee not included) 33,000 yen
Grand piano “Steinway & Sons” (tuning fee included) 66,000 yen
Electone (EL-100) 11,000 yen
Music stand 550 yen
LCD monitor (55-inch, with movable monitor stand) 22,000 yen
Permanent projector (12,000 lumens) and screen (4,428×2,491mm)
for Iwasaki Koyata Memorial Hall
(Lower row: Special price)
55,000 yen
38,500 yen
Permanent projector (8,000 lumens) and screen (2,657×1,494mm)
for Kabayama-Matsumoto Room and Room 4
(Lower row: Special price)
20,900 yen
15,400 yen
Permanent projection screen for Kabayama-Matsumoto Room and Room 4 (2,657×1,494mm) 4,400 yen
Permanent projection screen for Lecture Hall (2,000×2,000mm) 2,200 yen
Free-standing projection screen (100 inches) 2,200 yen
Mobile projector 5,500 yen
Simultaneous interpretation booth for Iwasaki Koyata Memorial Hall and Lecture Hall 33,000 yen
Simultaneous interpretation receiver (one set) 1,100 yen
We can also provide simultaneous interpretation, flowers, hanging signs, photographs, etc. Please contact the Banquet Desk for further information.
*Some of the equipment cannot be used in certain venues.
*There is no audio equipment available in the seminar rooms.

(As of April 1, 2024)

Reservations and Inquiries

Banquet Reservations
International House of Japan
TEL: 03-3470-4616 (10:00-18:00, Closed on Sundays & Holidays)
FAX: 03-3470-3210