Seattle Children’s is building a $400 million expansion to keep up with growth.

Called Building Care, the 310,000-square-foot addition, will be north of the hospital’s Building Hope location in the Emergency Department parking lot. It will serve as the hospital’s new front door, according to a news release.

The addition will have eight floors above ground, one below ground and three levels of underground parking. It will include 20 additional inpatient beds, eight new operating rooms, two new cardiac catheterization labs and new spaces for the pharmacy, laboratory teams and for sterile processing and the Cancer and Blood Disorders Center.

“Building Care will help us meet our strategic vision and will greatly enhance our ability to care for children in our community, both now and in the future,” the hospital said in a news release. Last year, Seattle Children’s many sites had more than 420,000 patient visits, which it said is nearly double what it was 10 years ago.

This new addition comes after the hospital opened the $305 million Building Hope in 2013, which has since been renamed the Friends of Costco building and as the Seattle Children’s Research Institute is finishing a $300 million new building, Building Cure, set to open next year.

Seattle Children’s also recently opened its new $25 million clinic in Everett, expanding specialty care services north, and announced over the summer that it will be building a second location of its Odessa Brown Children’s Clinic next year. The cost of acquiring land and building the second clinic is expected to exceed $40 million.

For Building Care, ZGF Architects designed it, Sellen Construction is the general contractor and the Seneca Group is development manager.

The team also includes Affiliated Engineers, Stantec, Coughlin Porter Lundeen, Site Workshop, MacDonald-Miller and VECA Electric and Technologies.

Nearby Building Cure in the Denny Triangle, UW Medicine is also expanding. Another key player, the Allen Institute, in recent years paid nearly $90.1 million for 2.25 acres for what officials of the late Paul Allen’s Vulcan Inc. said was for an eventual expansion of the institute. The Seattle Cancer Care Alliance is also moving forward with a 240,000-square-foot project that will more than double the size of its main clinic along Interstate 5 at Valley Street in Seattle’s South Lake Union neighborhood.