Lionel Messi's clearly looking to make South Florida feel more like home ... the new Inter Miami star was spotted house hunting over the weekend -- scoping out a massive mansion in Fort Lauderdale.
The 36-year-old -- fresh off scoring the game-winning goal in his debut for David Beckham's MLS squad last Friday -- used his day off on Sunday to check out the potential new spot for him and his family.
Messi's wife, Antonela Roccuzzo, and all of their tykes joined the footballer on the trek .