The Marriott’s Custom House is a 26-story 1847 landmark building which served as the official customs house. Today it operates as a time-share condo unit of Marriott vacations. guest rooms feature separate living and dining rooms with wet bars, microwave ovens, and mini refrigerators. The Custom House is in a great location within walking distance of Fanueil Hall, and the Waterfront, just steps away from the subway. On the downside, late night can be a little noisy when the bar crowd gets out. It depends on which side of the building you are on.