See inside this 105,000-square-foot Los Angeles megamansion that was just marked down to a sale price of $225 million

• The One Bel Air is a 105,000-square-foot megamansion said to be the biggest modern home in the US.
• It was once marketed for $500 million but now has a $225 million asking price, the LA Times reports.
• It reportedly has 21 bedrooms, 42 bathrooms, a 10,000-bottle wine cellar, a nightclub, and more.

A sprawling megamansion in Los Angeles is believed to be the biggest modern home in the US.

Known as The One Bel Air, the property comes from film producer-turned-real estate developer Nile Niami, who initially hoped to sell it for a whopping $500 million, which would have made it one of the most expensive homes in the world.

It comes with 21 bedrooms and 42 bathrooms, according to Architectural Digest. It also sports amenities like a 10,000-bottle wine cellar, a 50-car garage, 50-person movie theater, nightclub, cigar room, sky deck, putting green, salon, bowling alley, and more, according to The Los Angeles Times.

After its owner defaulted on more than $100 million in loans and debt, The One is now in a court-ordered receivership. The mansion's initial asking price has been halved, and it's now selling for $225 million, the LA Times reports.

Here's a look inside the enormous mansion:

At 105,000 square feet, the mansion is believed to be the biggest modern home in the US, according to the Los Angeles Times.

Allen J. Schaben / Los Angeles Times via Getty Images

It's called The One Bel Air and boasts 21 bedrooms and 42 bathrooms, according to Architectural Digest.

Allen J. Schaben / Los Angeles Times via Getty Images

Its developer, Nile Niami, initially hoped to sell it for $500 million.

Allen J. Schaben / Los Angeles Times via Getty Images

In the mansion's sprawling yard, you'll find a sculpture from Italian glass maker Simone Cenedese.

Allen J. Schaben / Los Angeles Times via Getty Images

Here's the main entrance to the property.

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Inside, the mansion's foyer has a rotating sculpture and floor-to-ceiling windows.

Allen J. Schaben / Los Angeles Times via Getty Images

In the dining room, you'll find a 10,000-bottle wine cellar.

Allen J. Schaben / Los Angeles Times via Getty Images

There's plenty of space to lounge around in the family living room.

Allen J. Schaben / Los Angeles Times via Getty Images

For some pampering, there's a hair and beauty salon.

Allen J. Schaben / Los Angeles Times via Getty Images

The salon seems to be one of the more vibrantly colored rooms in the mansion, with glossy red walls.

Allen J. Schaben / Los Angeles Times via Getty Images

The mansion also boasts an entertainment room with its own bar.

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Next to the entertainment room, there's a private bowling alley.

Allen J. Schaben / Los Angeles Times via Getty Images

It has four lanes, several shelves of bowling shoes at the ready, and bowling balls oddly evocative of Trix cereal.

Allen J. Schaben / Los Angeles Times via Getty Images

For even more active recreation, the property's future residents can take advantage of the mansion's private nightclub.

Allen J. Schaben / Los Angeles Times via Getty Images

Or, for less active leisure, there's a private 50-seat movie theater.

Allen J. Schaben / Los Angeles Times via Getty Images

The One's 4,000-square-foot master bedroom has a walk-in closet with plenty of space for clothes, shoes, and accessories.

Allen J. Schaben / Los Angeles Times via Getty Images

The mansion's future owners will find room for plenty of books in their private library, which has its own balcony.

Allen J. Schaben / Los Angeles Times via Getty Images

Multiple swimming pools dot the property, like this one indoors, in a room with a living wall and a mirror on the ceiling...

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...and these two outdoors, one of which is on the rooftop of a 4,000-square-foot bedroom.

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This pool deck sits atop the private nightclub.

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Another pool functions as a floating lounge.

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Though the home was built in the last decade, it has taken a cue from the construction of centuries past with its moat surrounding the entire property.

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Visitors to the mansion can have the guest house to themselves.

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The guest house also has floor-to-ceiling windows...

Allen J. Schaben / Los Angeles Times via Getty Images

...and three bedrooms on its own.

An interior view of three-bedroom guest house at The One Bel Air, a 105,000-square-foot mansion with a sky deck and putting green, night club, several swimming pools, a 50-seat theater, a four-lane bowling alley and more by Nile Niami of Skyline Development and designed by Paul McClean (McClean Design). The One is shown by court-appointed receiver Ted Lanes, who now controls the property and is in charge of finding a buyer and paying off the lenders and other creditors, gives a tour of The One, the 105,000 square foot house on sale in Bel Air. This is apparently the largest home for sale in the United States. The developer Nial Niami "listed" it for $500 million but got into financial trouble and was foreclosed upon by Don Hankey. Photo taken in Bel Air on Wednesday, Sept. 8, 2021 in Beverly Hills, CA. (Allen J. Schaben / Los Angeles Times via Getty Images)      Allen J. Schaben / Los Angeles Times via Getty Images

After its owner defaulted on more than $100 million in loans and debt, the mansion is now controlled by court-appointed receiver Ted Lanes.

Allen J. Schaben / Los Angeles Times via Getty Images

Lanes is now responsible for finding the mansion a buyer and paying off creditors, the LA Times reports.

Allen J. Schaben / Los Angeles Times via Getty Images

The One is now going on sale for $225 million, according to the LA Times.

Allen J. Schaben / Los Angeles Times via Getty Images