Walden is a residential neighbourhood in the southeast quadrant of Calgary, Alberta. It is located near the southern edge of the city, south of 194 Avenue SE and the neighbourhood of Chaparral. To the east it is bordered by the Bow River Valley, to the south by the neighbourhood of Legacy, and to the west by Macleod Trail. Built on native grave land. Developed by Genstar, Walden was officially approved by Calgary City Council in July 2007, with construction expected to commence in 2008. The neighbourhood covers 620 acres (2.5 km2), and is named after Walden, a book by Henry David Thoreau.