Justin Bieber has put an offer on a highly secured Calabasas, California estate with 6 bedrooms, spa, sauna, outdoor pool, movie theater, private guest house and more. The only thing holding him back? The wine cellar! The Biebs isn’t allowed to use his own wine cellar until he’s of age. Check out some pics of the mansion and get more details below!

Wendy L.

[TMZ]

18-year-old Justin Bieber won’t be able to enjoy his L.A. dream mansion to the fullest — at least for the next three years — because one of its coolest amenities … is strictly for the 21+ crowd.

As we previously reported, Bieber has put an offer on a 9,000 sq. ft. Calabasas estate way outside Hollywood — and among its awesome features … a fabulous wine cellar.

Bieber won’t be able to avail himself of the cellar’s services — unless he plans to store Pepsi down there — but he WILL be able to enjoy the 6-bdrm mansion’s GIANT outdoor pool, spa, sauna, separate guest house, and private movie theater.

As for the real selling point — the Calabasas community where the house is located is a veritable anti-paparazzi fortress … with several highly-guarded security gates. The community is also home to Travis Barker, NFL star Keyshawn Johnson, and Master P’s son Romeo.

No word yet if Bieber’s offer has been accepted.

UPDATE: Sources tell us … Bieber is extremely close to sealing the deal on the house … but he does have one minor reservation — he’s frustrated that everyone knows about the home.

Still, we’re told Justin and the seller are “very close” to going into escrow … they just need to work out a few minor points.

Check out pics of the estate below: