The world’s largest home is up for sale after almost a decade under construction.

The gargantuan 105,000 square-foot mansion, located in the ritzy Los Angeles neighborhood of Bel-Air, is set to fetch a whopping $340 million.

The 21-bedroom, 42-bathroom mansion is not only the largest home on earth, but its nine-figure price tag also makes it the priciest personal property to go to market in American history.

The mansion – which is aptly named ‘The One’  – took eight years to build and required the manpower of more than 600 workers.

New photographs featured in Architectual Digest give a glimpse into the recently-completed home, which was designed by architect Paul McLean and decorated by interior designer Kathryn Rotondi.

The pair were enlisted to create the contemporary castle by film producer Nile Niami, who owns the five acres of land on which the mansion is set.

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Despite the property’s giant size and lavish features, the interior looks low-key and very livable. The home has been completed with simple, low-fuss furniture and contemporary artwork

‘We wanted to provide that quintessential L.A. living but on a bigger scale’: Interior pictures show the home features floor to ceiling windows letting in the California sunshine

The world’s largest home is up for sale after almost a decade under construction. The 21-bedroom, 42-bathroom mansion is located  in Bel Air, Los Angeles and is set to fetch $340 million

The structure is surrounded by a moat on three sides and ‘appears to float above the city’, according to Architectural Digest.

It also features a 30-car garage, a four-lane bowling alley, and a ‘philanthropy wing’ for charity galas.

There are additionally five swimming pools spaced throughout the mansion, as well as a 30-seat movie theater.

Despite the opulence, McLean and Rotondi wanted to create a house that was light, bright and low fuss.

Interior pictures show the home features floor to ceiling windows letting in the California sunshine.

The home has been completed with simple, functional furniture and eye-catching contemporary artwork.

‘We wanted to provide that quintessential L.A. living but on a bigger scale.. To allow the home to feel livable,’ McLean stated.

However, the most breathtaking part of the property are its 360 degree views, which stretch all the way out to the Pacific Ocean in the west and the San Gabriel Mountains in the east.

The entirety of Downtown Los Angeles can also be seen from the mansion’s 10,000-square-foot sky deck.

‘This project felt exciting and simultaneously intimidating,’ McClean told Architectural Digest.

‘It was approached with excitement and was thrilling to create, but I don’t think any of us realized just how much effort and time it would take to complete the project.’

The home’s asking price is more than double that of the most expensive house ever sold in America – a home in New York state’s Hamptons that fetched $137 million in 2014.

However, owner Niami believes the property won’t languish long on the market.

‘When you have something that’s as rare as the Mona Lisa you can command whatever you want for it,’ he told Bloomberg last year.

The home is listed by both The Beverly Hills Estates and Compass.

‘As rare as the Mona Lisa’: The home’s asking price is more than double that of the most expensive house ever sold in America – a home in New York state’s Hamptons that sold for $137 million in 201