Few Tokyo addresses can give an international dinner the weight of a state occasion on their own. The Okura Tokyo is the standing choice among them. It sits in the diplomatic core, a short walk from the US Embassy, and for decades embassies, governments and international conferences have brought their important events here, not because the house is large or new but because it knows how to make every step between host and guest answer to protocol.
The value is not the floor area of the ballrooms but the record of diplomatic practice deposited in the house: how guests are received, how seating is arranged, how respect is carried in the details. No new venue catches that up with interior work. Put a corporate dinner or a government-level reception here and the venue stands behind the host; guests know from the first step inside that they are being received at the most formal level.
In a Tokyo itinerary the Okura is where weight and formality sit. When an event needs a stage that can hold a diplomatic occasion and stand up to the scrutiny of embassy and government guests, it is the answer the trade takes for granted.