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 where she collected Canadian antiques and craft-work. While Joe Clark and his family were resident at 24 Sussex, the interiors were redecorated, the dining room ceiling receiving gold leaf re-purposed from another project and unnamed business associates of Pierre Trudeau installed a swimming pool for his frequent workouts. The pool, designed by government architect Stig Harvor, reportedly cost C$275,000 due to an underground access increasing the expense. This was raised in a "public fund" headed by Keith Davey, the donors to which were never made public. Brian Mulroney was the first prime minister to have the costs of renovations publicly