Which American hotel was the first to provide indoor plumbing?

The Tremont House of Boston (1829– c.1895), was the first hotel in the United States to feature indoor plumbing for guests. The Tremont House was a four-story, granite-faced, neoclassical building, located at the corner of Tremont and Beacon Streets. The Tremont was designed by Isaiah Rogers.

The hotel offered many luxuries including a women's only dining area. At the time, it was considered inappropriate for a woman to dine without a gentleman, and meals would have to be taken in private. The hotel also boasted a reception area, locked guest rooms, bell boys, and free soap. Despite this long list of offerings, it is probably best known as the first hotel with indoor plumbing and running water. Davy Crockett, and Charles Dickens stayed to enjoy the luxuries of the Tremont.

The hotel's water was raised by a steam-powered pump to a storage tank on its roof, where gravity moved water to the taps. Eight toilets were provided on the ground floor. Bathrooms for bathing were located in the basement. Bathtubs were copper or tin, with local gas heating for the tub's water. Running water was also provided to the kitchen and laundry areas. A simple system removed the waste water to the sewage system.

The residents and visitors of the White House would not enjoy the luxury of indoor plumbing until 1833. By the 1840's, indoor plumbing was becoming a more common feature in the homes of the rich.