A landmark, high rise hotel with 1,500 guest rooms and 29 restaurants and bars, standing in the middle of the popular Shinjuku district. It also offers a fitness centre, an outdoor pool and a tea-ceremony room. The lobby is very large with a marble floor and shining, elegant chandeliers. It is very spacious, bright, and welcoming. The lobby is decorated by remarkable Japanese flower arrangements and special seasonal arrangements, and is part of the hotels promotional activities.

Located in the centre of the dynamic business-entertainment-shopping area of Shinjuku, the Keio Plaza stands next to the imposing Tokyo Metropolitan Government Buildings, whose Observation Platforms offer some of Tokyo's finest panoramas. A variety of department stores are within 5 minutes walk, as is Shinjuku Station, Tokyo's busiest rail hub.

There are 11 restaurants and 9 bars offering all cuisines to suit all visitors.