Microsoft plans a multibillion-dollar overhaul of its main campus in Redmond, Washington, adding space for 8,000 more workers and creating areas for collaboration and recreation.

Microsoft plans to build 18 new, higher than the existing buildings at the company's original headquarters and the campus' space will be the equivalent of 180 football fields. The new design also features a community space for 8,000 to 12,000 people in an open-air plaza and outdoor areas including running and walking trails, sports facilities and green spaces.

Parking that is currently adjacent to the buildings will be moved underground. Overall, the campus will be designed more for pedestrians and usage of the local light rail, which will reach the campus by then based on the region's current plan.

One holdover from the original design will be Lake Bill, the small pond at the center of the old campus, whose name pays homage to Gates.