Apple’s “spaceship” Campus 2 is well under construction, as seen in the latest drone video shot of the upcoming facility. Most of the foundation has already been laid for the space-age facility in Cupertino, California, which will hold between 12,000 and 13,000 Apple staff members, and currently occupies 176 acres of land.

The Apple Campus 2 will be the “greenest building on the planet,” Apple CEO Tim Cook told an audience at Climate Week NYC in September. The new campus is expected to be powered entirely off renewable sources of energy such as wind and solar power. Other amenities include a 1,000-seat corporate auditorium, a 100,000-square-foot fitness center, 92,000 square feet of utility plants and even orchards.

Apple’s upcoming “spaceship” campus is under construction in partnership with British architectural firm Foster + Partners at an estimated cost of $5 billion, according to Fast Co. Design. The firm is responsible for a number of buildings, such as the Hearst Tower in New York and the Hong Kong International Airport.

Following the approval of Apple’s plans for the campus in October 2013, the company broke ground for the project in November 2013. Construction for the facility is expected to be completed by the end of 2016.