KYLIE Jenner’s new mega-mansion could take years to finish as it’s as complicated as building a luxury hotel from the ground up, an expert has revealed.

The U.S. Sun obtained exclusive aerial photos showing how big an undertaking the project is with a second story recently being added to the wooden structure of, what will be, the main 18,000-square-foot home.

The beauty mogul is continuing to expand her property empire with the new mansionCredit: Getty

Kylie bought the plot in 2020 for just shy of $15million and has been busy constructing the property since 2021Credit: Contact Chris White [email protected]

The pad, situated in the luxury gated community of Los Angeles’s Hidden Hills, will also fit a 12-car garage, sports court, and swimming pool.

Further down the plot, which is close to her sisters and mom Kris, the foundations have been built for what will be a 1,200 square foot guest house and a security unit, according to previous media reports.

The 25-year-old paid $14,990,000 back in April 2020 through a trust linked to Britney Spears’ controversial former manager Lou Taylor, who’s been accused along with Britney’s dad Jamie of frittering away millions of her fortune during the conservatorship, a claim they deny.

The U.S. Sun was the first to show building work had begun in 2021, which revealed that the steep slopes had been excavated and leveled off.

Trailers and vehicles are seen parked on the huge plot of land in Hidden HillsCredit: Contact Chris White [email protected]

A second story has recently been added to the huge structure in a gated communityCredit: Contact Chris White [email protected]

Now, luxury Los Angeles realtor Tony Mariotti, CEO of RubyHome Luxury Real Estate, said that the rebuild could be years away from being finished and explained in detail what’s required to construct these gigantic homes.

This is especially the case for A-list celebs, like Kylie, who want everything custom-made using unique and often hard-to-get raw materials, especially in the post-Covid era.

He explains that the project isn’t dissimilar to building a hotel.

Tony said: “They are bigger. I know that’s obvious, but bigger homes just take longer. For example, that foundation, with the subterranean garage is some serious business. Not only is it huge, but it is way more complex than a typical foundation.

“There’s more plumbing, more wiring, more air vents running through and around a foundation like that. Major systems, like heat and A/C, electrical, and roofing, are also more complex. The materials are heavy-duty.

‘SERIOUS BUSINESS’

“Interior materials are not off-the-shelf products found in your local hardware store. The marble or stone they use, and the carpet they use, are unique and most likely sourced from around the world.

“If you run out of something or have difficulty with the materials, that’ll cause a delay.

“There are a lot of custom dimensions. You can see in the framing of the home that there are several major support beams that took time to get right-sized and properly seated.

“Notice the two white construction sheds. That’s a sign that there are multiple managers and foremen on the site.

“This is a project on the scale of a large restaurant or small hotel.

“They’ve got multiple sub-contractors coming and going, doing all sorts of work, all of which is going to be custom and detailed. Laying the stone or carpet in that house could take weeks instead of days.

“The city inspections that happen along the way will take longer. If the builders violate or overlook any building codes, it’ll take days or weeks to straighten things out.

“Builders who work on high-quality custom homes in the LA area get a reputation for how much attention they pay to detail. The builder responsible for this home will be riding every subcontractor’s ass to make things perfect.

“Builders of this caliber will always prioritize getting things right even at the expense of moving slower.

EXPANDING EMPIRE

“This is just a big project. And the number of things that can go sideways is large.”

An online brochure said the area was delivered “shovel ready” enabling the buyer to build their dream home from the ground up.

The sale included approved plans for an 18,000 square foot home with a 12-car garage, guesthouse, barn, a guard shack for a “full-time security detail,” pool, and sports court, all tucked away behind private gates.

“The property also features its own private driveway to the large upper building pad, that offers excellent privacy from the neighbors and the street below,” the description adds.

“With its great size, excellent views, approved building plans, and prime, central Hidden Hills location, this truly unique property has it all.”

Kylie’s new pricey pad will be the fifth in her real estate portfolio.

It most likely won’t be her main residence, as she currently spends most of her time in a $36.5million resort-style compound in the Holmby Hills area of Los Angeles.

When Kylie moves in, she’ll be neighbors with Kris and her sister Khloe Kardashian who have their own custom-built mansions.

The momager’s $20million pad boasts eight bedrooms, nine bedrooms, an eight-car garage, and a pool and spa.

Meanwhile, Khloe resides in an adjacent mansion that she had built from scratch on a $17million plot.

Kylie’s other sisters Kim and Kourtney also live nearby, with the Skims boss’s home being the most expensive at $60million.

Progress has been made in recent weeks as the rooms and huge garage are being constructed on the landCredit: Contact Chris White [email protected]

The mom of two with son Aire, one, and daughter Stormi, 5, who live with the starCredit: Instagram/kyliejenner

The giant 12-car garage is a huge undertaking for workers, according to an expertCredit: Contact Chris White [email protected]