Ride-hailing giant Uber is expanding its engineering office in Seattle to fit up to 750 people, which is more than double its Seattle headcount today.

Uber said it has inked a 10-year lease for 115,000 square feet at the Second and Seneca Building in downtown Seattle, expanding its presence there from two to five floors. The new space, scheduled to open next summer, will allow Uber to consolidate all of its Seattle employees in one place.

Today, Uber has 350 employees in Seattle, up from 200 earlier this year, scattered across multiple locations. The company also has more than 60 open positions in Seattle. Engineers at the 3-year-old Seattle office work on a variety of technologies ranging from driver compliance to fleet management to airport logistics.

“Seattle is an important growth city for Uber from an employment and innovation standpoint,” Marcus Womack, director of product and head of the Uber Seattle engineering office, said in a statement. “The work we’re doing in Seattle touches just about every aspect of our business, so it makes sense to expand our presence here considering the wealth of tech talent in the region.”

Uber anticipates spending $9 million on the new office, which will include a new gathering space for dining, meetings and trainings, a library, a game room and conferencing spaces.

As it has grown, the Seattle office has seen some major changes recently. Womack joined Uber late last year, coming from the Seattle-based police body camera maker Axon, where he was an executive vice president. Alejandro Chouza, Uber’s Pacific Northwest leader, previously led Uber’s operations in Northwest Mexico and replaced longtime general manager Brooke Steger earlier this year.

News of the Seattle expansion follows Uber’s announcement of plans to invest approximately $200 million in a new engineering hub and expansion of its self-driving car operations in Toronto. When all is said and done, Uber will have about 500 tech employees in Toronto, more than double its current workforce there.