Beautiful private event venue located in the heart of downtown Cleveland. It is the perfect space for weddings, rehearsals, showers, corporate meetings, galas, and parties for all occasions. St. Clair Ballroom is attached to the Marriott at Key Center which offers 400 hotel rooms with bridal suites, the luxurious Ascend Day Spa and fitness center, award-winning Armando's Barbershop, fine dining at Il Venetian Italian Restaurant, and much more. Enjoy restaurant quality food and craft cocktails with breathtaking views of Cleveland's cityscape and Lake Erie. Schedule a tour today.