Trains from Melbourne's Southern Cross Station to Ballarat run frequently and the trip takes just over an hour. When you get to Ballarat Station, take bus route 20 (in the direction of Canadian) to Fussell Street - check the PTV website (remember - the cost of the bus is included in your V/Line fare - just show your V/Line ticket as you board)
From Sovereign Hill: If you're coming from Sovereign Hill you can catch bus route 21 to Ballarat Station, then change to the route 20 bus (in the direction of Canadian) to Fussell Street - check the PTV website.
Your V/Line ticket is valid for travel on Ballarat local buses at no extra cost.
Tip: Travelling during off-peak times is cheaper and more convenient!