Justin Trudeau three half-siblings, Kyle and Alicia, from his mother's remarriage to Fried Kemper, and Sarah, from his father's relationship with Deborah Coyne. Trudeau lived at 24 Sussex Drive, Ottawa, the official residence of Canada's prime minister, from his birth until his father's government was defeated in the federal election on May 22, 1979. The Trudeaus were expected to move into the residence of the Leader of the Official Opposition, Stornoway, at 541 Acacia Avenue in Rockcliffe Park, but because of flooding in the basement, prime minister Joe Clark offered them Harrington Lake, the prime minister's official country retreat in Gatineau Park,
National Capital Commission NCC is also the steward of the Capital’s six official residences: Rideau Hall, 24 Sussex Drive, Harrington Lake, Stornoway, The Farm and 7 Rideau Gate. The continuing preservation, evolution and management of Confederation Boulevard, the ceremonial route linking key attractions in National Capital Region, on both sides of the Ottawa River, in Ottawa as well as Gatineau, Quebec, are the responsibility of the NCC and its partners. These roles are in contrast with the mandates of the various municipal governments, which serve the benefit of their immediate resident, under provincial legislation, on issues like road maintenance, sewer, water and public