The 18-year-old singer has purchased the home of the Kardashian family, which previously belonged to Eddie Murphy's ex-wife Nicole Mitchell.
The 10,000 square-foot property contains eight bathrooms, a library, cinema with stadium seating, a wine cellar, a wet bar and there is a pond within the 1.3-acre grounds.
Bieber is thought to be keen on installing some high-tech gadgets in his mansion, which was constructed in 2005 and had been listed at USD 8.75 million. It also features a big guest house, large garage and pool, as well as a games room.
The 'Boyfriend' hitmaker had narrowed his search for his first home to three houses, which is thought to have included a property currently being rented by "Two and a Half Men" star Ashton Kutcher.