Seeking a change, Allan moved to South Australia with the North Adelaide Football Club.
After making his league debut against Central District in round 1 of the 2007 season Allan went on to win the first of his three Magarey Medals.
As of the end of the 2011 season, Allan is second only to Barrie Robran in both Magarey Medal wins and North Adelaide best and fairest awards.
He was included in Norwood's 2014 Grand Final team after missing the previous six weeks with a broken arm.
[8] In 2020, Allan was named the inaugural football director of Rostrevor College in Woodforde, South Australia, a suburb of Adelaide.
[10] On 10 November 2023, Allan was named senior coach of Werribee, returning to the VFL club after 17 years in South Australia.