Excerpt from
www.historicplaces.ca: The Kingston Customs House National Historic Site of Canada is a handsome two-storey neoclassical building erected between 1856 and 1859 by the Province of Canada. It is constructed of limestone and is situated in the centre of the city of Kingston on a block shared by the former Kingston Post Office and a limestone stable associated with the two public buildings. It is part of a cluster of 19th-century public and commercial buildings, including the Kingston City Hall, in the immediate vicinity.