Facebook is gearing up for construction of a $303M building as part of its headquarters expansion project in Menlo Park. The social media giant plans to build a four-story, 464K SF building as part of the western development of its campus, according to BuildZoom.

Facebook also has been working toward creating a mixed-use village called Willow Campus off Willow Road in Menlo Park, which would include housing, retail and a 1.75M SF office. The tech company has filed permits over the last five years worth over $1B.

At its headquarters, construction of Building 22, which is designed by Frank Gehry, will include a connecting bridge between buildings 22 and 21. The project includes the demolition of buildings 301, 302, 303, 304 and 306, which will be replaced by the four-story structure. The tech company filed a $73M permit in October for a seven-story above-grade parking garage to be adjacent to Building 22, also known as MPK 22.

During construction, Building 305 will be left intact on the southern side of the campus, but will later be razed to create an open park space, according to BuildZoom.

Facebook bought 60 acres in 2014 from TE Connectivity for over $101M as part of a campus expansion, according to the San Francisco Business Times. The entire project includes two buildings with a total of 962K SF, a hotel and pedestrian bike bridge connecting to the Bay Trail.

The first phase began in 2016 and is expected to deliver this year. Level 10 Construction is the general contractor for this project.