Clayton South is a suburb in Melbourne, Victoria, Australia, 20 km south-east of Melbourne's Central Business District, located within the City of Kingston local government area. Clayton South recorded a population of 13,381 at the . The suburb sometimes goes by the name Westall, due to the name of the main road and the railway station that serve the area. Westall is, however, not an official name, and all post addressed to the area is addressed to Clayton South. History Settlement of the area dates from the mid 1800s, with land used mainly for farming and market gardening. The area was once coastal heathland and first occupied by John O'Shannessy during the early 1840s, who took a squatting licence to encompass a 40,000-acre (160 km2) block, around suburbs known today as Clarinda, Clayton South, Dingley and Heatherton. O’Shannessy later passed on his licence to John and Richard King, in 1846, which saw the transformation of the area. Some growth took place during the late 1800s and early 1900s. The area was also used for market gardening, although there was a considerable amount of swampy or unimproved land when the Forest Hill Golf Club acquired an area for its Spring Valley golf course in 1948. The golf course is one of several in the sand belt country, extending from Huntingdale to Dingley Village. Residential settlement and industrial growth began during the late 1950s. Notable developments were the Volkswagen assembly plant adjoining the Westall railway station, and cable-making and bakery establishments. The Clayton South primary school had been opened in 1929 for the farming community, but the postwar residential growth required the opening of Westall primary and high schools in 1961 and 1963. Clayton South Post Office opened on 15 July 1929 and closed in 1976. Westall Post Office opened in 1960 near the station and closed in 1971. Significant development occurred from the post-war years, with rapid growth during the 1960s and 1970s. The population declined slightly between 1991 and 2006, a result of few new dwellings being added to the area and a decline in the average number of persons living in each dwelling. The population and dwelling stock then increased slightly between 2006 and 2011. Immediately west of Clayton South is Clarinda. During 1960s to 1980s it was regarded as a locality of Clayton South, but in the late 1990s it emerged as a separate suburb. Clayton South thus