The luxury penthouse apartment at Facebook's newest office building costs a whopping $US42 million -- take a look inside

Facebook just dropped $US35 million to take over all 33 floors of commercial space at 181 Fremont, a mixed-use skyscraper that will the third tallest building in San Francisco upon completion in 2017. It’s the social media giant’s first outpost in San Francisco.

When Facebook and Instagram, which was acquired by Facebook in 2012, move into their new offices later this year, employees will share the 70-storey tower with some well-heeled residents.

181 Fremont —  the tallest residential tower west of the Mississippi River —  contains 67 luxury condos, including a full-floor penthouse. The $US42 million penthouse price tag makes it one of the most expensive listings San Francisco has ever seen. It hit the market in March and has yet to sell.

These renderings of the penthouse at 181 Fremont give us a glimpse inside.

181 Fremont has been called the most luxurious building on the West Coast by Forbes.

Courtesy of 181 Fremont Residences
An artistic rendering of 181 Fremont.

Source: Forbes

Designer Orlando Diaz-Azcuy and architectural firm Heller Manus Architects set out to make 181 Fremont the epitome of luxury. It cost an estimated $US665 million to build.

Courtesy of 181 Fremont Residences
An artistic rendering of 181 Fremont.

'The vision for 181 Fremont is not simply to raise the bar for luxury living in San Francisco, but to set an entirely new one,' said a brochure for interested residential buyers.

The tower rises 70 storeys over San Francisco's Financial District and will house 2,000 to 3,000 Facebook and Instagram employees across 40,500 square metres of office space.

Courtesy of 181 Fremont Residences
An artistic rendering of 181 Fremont.

A full-floor, 644 square-metre penthouse tops off the building. At $US43 million, its asking price makes it the most expensive listing in San Francisco, according to Zillow.

Courtesy of 181 Fremont Residences
Residents of the penthouse at 181 Fremont will step off the elevator into a grand lobby.

Source: Zillow

The developers of the building spared no expense. Residents will enter through a Paldao wood door. The polished brass handle was custom-forged by Parisian artists.

Courtesy of 181 Fremont Residences

A living room situated in the corner has 3-metre-tall ceilings and recessed lighting.

Courtesy of 181 Fremont Residences
An artistic rendering of the penthouse at 181 Fremont.

Residents will kick up their feet by the stone fireplace and pour drinks at a wet bar.

Courtesy of 181 Fremont Residences
An artistic rendering of the penthouse at 181 Fremont.

The penthouse has a family room, two powder rooms, a breakfast nook, and a grand dining room. The kitchen features a sub-zero refrigerator and freezer, two dishwashers, double ovens, and countertops made of three-centimetre-thick slabs of Brazilian quartzite.

Courtesy of 181 Fremont Residences
An artistic rendering of the penthouse at 181 Fremont.

When standing at eye level, the walls appear to hover slightly. Suspended base walls aren't usually found outside museums, but designer Diaz-Azcuy liked the look of lightness.

Melia Robinson/Business Insider

Matt Lituchy, chief investment officer of the building's developer and landlord, Jay Paul Company, told Business Insider the suspended walls were a huge budget-suck.

'It's one of the first things designers want and developers throw out,' Lituchy said. But the developer easily folded. 'Whatever (Diaz-Azcuy) said, we went along with,' he added.

The building's interiors team spent months in Italy hand-picking Calacatta Carrara marble harvested from the seaside's quarry cliffs, which will cover the bathroom walls.

Courtesy of 181 Fremont Residences

A rendering of a soaking tub in the master bath shows the view from above the clouds.

Courtesy of 181 Fremont Residences
An artistic rendering of the penthouse at 181 Fremont.

The penthouse has five bedrooms and six baths, but we couldn't find renderings of those.

Courtesy of 181 Fremont Residences
An artistic rending of a lounge space in 181 Fremont.

Here's a bird's eye view of the penthouse at 181 Fremont.

181 Fremont

And there's good news for homebuyers who are concerned that a major earthquake, which is considered overdue in the San Francisco Bay Area, might ruin their property investment. ...

The developers of 181 Fremont describe the building as an 'engineering marvel.' An aluminium-based exoskeleton twists around the building to provide added support.

In the case of an earthquake, the tower's crisscrossing joints are designed to behave like shock absorbers, reducing stress from seismic activity, according to the developer.

Courtesy of 181 Fremont Residences

Matt Lituchy, the chief investment officer of the building's developer, Jay Paul Company, told Business Insider in 2016 that 181 Fremont was the most 'resilient' building on the West Coast.

In the event of a major earthquake, residential and commercial tenants would be able to return and have complete access to the building within one month, according to Lituchy.

The penthouse at 181 Fremont could be all yours, Mark Zuckerberg.

Courtesy of 181 Fremont Residences
The view from 181 Fremont.

NOW WATCH: Tech Insider videos

Want to read a more in-depth view on the trends influencing Australian business and the global economy? BI / Research is designed to help executives and industry leaders understand the major challenges and opportunities for industry, technology, strategy and the economy in the future. Sign up for free at research.businessinsider.com.au.