24 Sussex Drive 24 Sussex Drive 24 Sussex Drive, originally called "Gorffwysfa" and usually referred to simply as 24 Sussex, is the official residence of the Prime Minister of Canada, located in the New Edinburgh neighbourhood of Ottawa, Ontario. Built between 1866 and 1868 by Joseph Merrill Currier, it has been the official home of the Prime Minister of Canada since 1951. It is one of two official residences made available to the prime minister, the Harrington Lake estate in nearby Gatineau Park being the other. The house at 24 Sussex Drive was originally commissioned in 1866 by lumberman and Member of Parliament
Harrington Lake property at Harrington Lake has been managed by the National Capital Commission. The property includes four recreational buildings; the land, which formerly consisted of cultivated fields, has reverted to secondary forest. In addition to the main cottage with its fine view over the lake, the Harrington estate includes the following structures: The lake itself and the area around it are referred to as "Lac Mousseau". The name "Harrington" is thought to be a misspelling of "Hetherington", the name of a family which settled in this area. The French name "Mousseau" comes from another early settler to the area, Louis Mousseau,