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/ John Muir Health Emergency Department Expansion

The 450,000 s.f. expansion and remodel for John Muir Medical Center – Walnut Creek includes a relocation of the Emergency Department and expansion to 30,000 s.f. designed for 65,000 patient visits per year. Designated as the trauma center for Contra Costa County and part of Solano County, the new ED doubles, and will ultimately triple, the number of treatment stations for the hospital. The newly renovated facility will increase waiting area spaces with a main lobby and three satellite waiting rooms to accommodate patients family and loved ones.

The ED spaces are arranged in several treatment zones with separate clinician stations to improve organizational clarity and streamline the delivery of healthcare services. These treatment zones include a fast-track unit, an observation unit, two acute care units, and a critical care area for cardiac resuscitation and trauma. Together, the first phase comprises: 31 universal treatment rooms, four major trauma rooms, a dedicated CT scanner and two radiology rooms, quiet treatment areas, a negative pressure area,•two full isolation treatment rooms complete with anterooms and toilets, security at walk-in and ambulance entries, and a dedicated work area for paramedics and emergency workers.

The ED is situated one floor below Surgery which provides for a direct connection between the two departments; and a direct connection to the new Phase 4 roof top helistop via two high speed elevators also allows for rapid arrival of trauma cases.

The project was built and occupied in multiple phases to accommodate an early start date for construction of the new expansion.


Walnut Creek, CA


24,000 SF


  • Design Bid Build


  • Architecture
  • Interior Design
  • Planning
  • Programming
  • Renovation