(Francisco Kjolseth | The Salt Lake Tribune) Daybreak, the 4,100-acre master planned community in South Jordan, illustrates the idea of blending higher density housing and walkable community design with ample amounts of open space as seen along Daybreak Promenade. That "smart growth" land use approach is being required by Salt Lake County for a proposed development called Olympia Hills, a 933-acre residential and commercial project proposed west of Herriman.