Sebastopol became a suburb of the City of Ballarat.Plan showing the streets, allotments creeks in the Borough of Sebastopol, Parishes of Ballaarat and Cardigan, County of Grenville, in 1940. sebastopol, t. rider, yarrowee creek, leigh river, st george's reserve, leigh creek, sebastopol public gardens, sebastopol recreation reserve, gravel reserve, night soil depot, sanitary depot, rubbish depot