Suburb in Sydney's northwest which was a Government Farm at the turn of the nineteenth century, and later the location of many orchards and market gardens, which have since given way to residential development.
Originally Dharug country, the area that became Castle Hill was granted to settlers in the 1790s and some set aside for the Government Farm in the 1800s. Sydney's only convict rebellion started there in 1804. Farming gave way to orchards and later market gardens. By the 1960s Sydney was encroaching, and Castle Hill has since turned into a residential suburb.