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,
24 Sussex Drive of the house is a mid-century modern take on Norman Revival architecture. When originally built, it was very much of the Victorian (Queen Anne) style; it had high gables, extensive verandahs, and a liberal use of gingerbread trim. A turret was added by the Edwards family in 1907. After it was decided in 1950 the house would become the official residence of the prime minister, the turret, widow's walk, trim, main gable at the front, verandahs, and porte-cochère were removed and an extension added to the east. The interior was gutted, save for part of the dining room. The National