Justin Bieber has officially cut ties with California ... he packed up all his stuff and he moved to ATL.
Moving trucks arrived at Bieber's Calabasas home Tuesday to clear a path for the new owner -- Khloe Kardashian.
TMZ broke the story ... Bieber also sold the plot of land next door, which now means he owns no property in California.
Bieber is renting in Atlanta but is looking to buy a house. We're told he's put house hunting in Southern California on hold. Our sources say he'll probably end up buying something in So. Cal., but now he's ATL to the core.