Gold Coast has locked up Sam Flanders on a four-year deal, securing the gun midfielder after he finished the AFL season in barnstorming form.

Flanders, who was off contract beyond this season, was the 11th pick of the 2019 draft behind high-profile top two Matt Rowell and Noah Anderson.

Unlike that pair, it's taken Flanders four seasons to establish himself, the 22-year-old averaging 29 disposals and five clearances per game for the final 10 matches of the year.

After a mid-season injury, Flanders lapped up the chance to shine with more midfield minutes in a timely display ahead of coach Damien Hardwick's arrival next season.

"I feel I am starting to play some high quality football for the club and love the playing group here, they really make me feel at home," Flanders said.

"I can't wait for what's to come next year and really wanted to be a key part of the next chapter."