 Priddis was raised in Manjimup, a country town in Western Australia's south-west region, but moved to Perth, the state's capital, as a teenager, playing at junior level for Sorrento–Duncraig.He represented Western Australia at both under-16 and under-18 level respectively, in addition to also making his senior debut for in the West Australian Football League (WAFL) as well, playing two games early in the 2003 season.Priddis became a regular in Subiaco's senior side during the 2004 season.