Jay Paul Co.’s Moffett Towers II in Sunnyvale is all leased up, and Facebook could be one of its main tenants. Facebook is said to have leased about 1M SF in three out of the five buildings within the office complex, the East Bay Times reports. This could allow Facebook to move about 5,000 to 6,000 employees into Sunnyvale.

Facebook would not be a new tenant for Jay Paul Co.; the social media giant leased all of Jay Paul Co.'s 445K SF office space at 181 Fremont last year.

While Facebook did not confirm the leases, one of the site’s brokers, Newmark Knight Frank Vice Chairman Phil Mahoney, confirmed with the East Bay Times that all five buildings have been leased to unspecified tenants.

Two of the five buildings within Moffett Towers II are nearing completion and a third is under construction.

Amazon already leased one 350K SF building at Moffett Towers II and leases about 1M SF throughout Sunnyvale.

Outside of its growth throughout Menlo Park, which includes an expansion of its headquarters as well as a proposed Willow Campus, Facebook has leased space in Fremont and may also sublease 475K SF from WeWork at the Village at San Antonio in Mountain View.