Harrington Lake the lake, expanding his total holdings to some 1,200 hectares (3,000 acres). He also ordered the demolition of the mill buildings at Harrington Lake, and replaced them with a 16-room cottage that was designed in the Colonial Revival style, very common in the 1920s according to the NCC, but with the addition of large fieldstone chimneys. In 1951, the lake and the property (including neighbouring land belonging to William Duncan Herridge and Stanley Healey) were acquired by the King in Right of Canada to build up preserves of natural areas around the capital. In 1959, supporters of Prime Minister John
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,