Bloomberg reports that 83-year-old Gehry's project will start in spring 2013 across a highway from Facebook East, the firm's current headquarters at Menlo Park, on the edge of San Francisco Bay in California. The cost of the build was not disclosed.
Mark Zuckerberg, the founder and chief executive of Facebook, is said to have been impressed with Gehry's collaborative ethos, which the 28-year-old also favours at his social network.
Taking an exclusive look at the plans, Bloomberg reported that the design is very different from Gehry's previous creations, such as the titanium-covered Guggenheim Museum in Bilbao, Spain.
The building is essentially an enormous open room of almost ten acres (420,000 square feet) in surface area. It is to be built on stilts so that a car park can sit underneath, while the roof is to be transformed into a giant garden.
According to Bloomberg, work benches sit inside the space in curving arcs like "swarms of fish". Each of these is organised into work-group "neighborhoods" alongside meetings spaces, potentially decorated with graffiti murals, and involving lounges fitted out with games consoles.
Gehry said that the skylights and clerestories in the 26-foot-high ceilings would pour daylight down into the building. There would be no private office or cubicle, apart from a glass-partioned space in the centre of the floor where Zuckerberg will be based.
Gehry told the news agency that Zuckerberg wanted the building to reflect his vision of an office space free from hierarchy and fully supportive of collaborative working.
"Mark said he wanted to be in the same room with all his engineers," Gehry said. "I told him we could put the building up on stilts, park cars underneath and create a room as large as he wanted."
Facebook has became famous for its all-night "hackathons", in which the engineering teams rapidly build prototypes of new products and services, with a view to driving forward the development process.
However, Bloomberg noted that the open plan approach is risky as there have been suggestions that Zuckerberg is out of his depth in the corporate world following a major nosedive in the company's share price since it went public in mid-May.
Facebook shares have lost 50% of their value since the float, costing its investors billions of dollars, and so there is now greater scrutiny over the business practices of the world's largest social network.
But Gehry claims that the new building, expected to open in spring 2015, will be designed so that it can grow and change as Facebook does too.
"We've got to give them a system that's not precious, that they can manipulate," Gehry said. "We want it to work effortlessly."