"I want to buy the Timberwolves," he said. "Put a group together and perhaps someday try to buy the team. That's what I want."
Garnett spent his first 12 seasons in Minnesota, where he became a superstar after being selected by the Timberwolves in the first round (No. 5 overall) of the 1995 draft.
The 38-year-old is in his 20th season in the league. He is also in the final year of his contract (he will make $12 million in 2014-15).
It is unknown if this will be Garnett's final season. He is averaging 8.0 points and 8.0 rebounds in 23.0 minutes per game for the Nets (4-4).
Garnett has made more than $315 million in on-court earnings during his career.
Glen Taylor has been the majority owner of the Timberwolves since 1994. Taylor, 73, told The Associated Press in 2012 that he hoped to add a minority partner at some point who could succeed him as majority owner.
Flip Saunders, the team's coach and president of basketball operations, is also a minority owner and extremely close with Garnett, having helped mold him as his coach from Garnett's rookie season until 2005.
"I have ties there. Flip's there," Garnett told Yahoo! Sports.