I had a chance to see the universal design rooms of Keio Plaza Hotel the other day. The hotel firstly offered 15 universal design rooms in 1988, and renovated all the facilities last year making 13 renewed universal design rooms. Those are in three grades based on the size , and from their long experiences of servicing to guests with all kinds of disabilities, facilities of rooms are arranged based on the needs of the guest.
More information is available: https://www.keioplaza.com/rooms/universal.html