Sunbury station opened on 10 February 1859 as a terminus, with the line not extended further for two years. The three-track yard dates from that time, and was unique in Victoria. There was a large goods shed on its southern side, a large silo on its northern side, as well as sheep and cattle ramp and yards. There was also housing for railway staff, including two houses in Horne Street, and the stationmaster's house in Brook Street, which were all demolished in the 1980s.