Britney Spears has left Calabasas ... and moved into a brand new $8.5 MILLION mansion even further away from all of the Hollywood madness.
The 8,456 square foot home is located inside a swanky private community in Thousand Oaks, CA -- about 16 miles from Brit's old mansion in Calabasas.
Here are the stats -- 5 bedrooms, 7 baths, wine cellar, home theater and massive infinity pool.
We're told Britney made the move because she's starting a new life with fiance Jason Trawick ... and wants to be in a new home in a secure location.
The move puts Britney even further away from the hub of Hollywood -- but we've learned Brit will stay in a super-fancy L.A. hotel when "X Factor" comes to Los Angeles in a few weeks.