A world class hotel in a class all its own. Featured in Architectural Digest and on the Travel Channel, The Mansion on Delaware Avenue is Buffalo/Niagara's only AAA Four Diamond hotel. A stately structure set in a state-of-the-art environment, it is an ideal location for overnight guests or as a unique banquet or meeting site. With 24-hour Butler and business services, our historic, luxury hotel was designed to meet the challenges of the business traveler while creating an enviable level of comfort for the leisure traveler. We invite you to experience our sanctuary of time, luxury and service, where the sophistication of the past drifts gracefully through the comforts of the future.