Dive Brief:

• Facebook’s latest larger-than-life innovation is the design of the roof of its newest headquarters building—which features more than 400 trees.

• Employees of the social media giant on Monday began moving into their new West Campus work spaces, located across an expressway from the company’s main headquarters. The new, 430,000-square-foot building—the 20th to be built at the Facebook complex in Menlo Park, CA—will hold 2,800 employees.

• The roof measures nine acres, includes a half-mile walking loop for employees, and will “serve as a haven for local and native birds, as the trees and plants are climate appropriate and native to California,” The San Jose Mercury News reported. The roof will absorb heat and help insulate the LEED gold-certified building, keeping energy costs down.

Dive Insight:

Despite the “wow” factor, the building’s lead architect has said Facebook CEO Mark Zuckerberg ordered up “a space that was unassuming, matter-of-fact and cost effective.” Architect Frank Gehry said in a statement that Zuckerberg “did not want it overly designed. This is the building that we created for him.”