In 1961, Robert E. Simon Jr. began developing 6,750 acres of Sunset Hills Farm as a community open to all races, ages, and incomes. Working with Simon, the architectural firm of Whittlesey & Conklin designed a "New Town." Construction of Lake Anne Village, its lake, central plaza, stores, and townhouses, began in 1963. With innovative zoning, Reston became one of the first master-planned communities in the United States, with residential clusters, mixed-use development, landscape conservation, ample recreational space, walking and biking trails, and public art. Reston received the American Institute of Certified Planners' National Landmark Award in 2002.