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48X Complex| Facilities Planning and Development | UC Davis Health

Featured Projects

48X Complex

The four-story, 268,228-square-foot “48X Complex” addresses the shortage of ambulatory operating room capacity at the main hospital.

rendering of 48X Complex building

To serve our growing population, the major outpatient surgery center known as the 48X Complex opened July 1, 2025. Named for its location at 48th and X streets, the four-story, 270,000-square-foot complex supports a preliminary program of 14 operating rooms, two procedure rooms, 59 recovery bays, 14 single-occupant extended stay recovery rooms, 96 clinical exam rooms, 19 clinical treatment rooms and 100,000 square feet of surgical specialty clinics. By adding space for clinics and technology, 48X Complex helps to reduce wait times for elective procedures and expand surgical services and therapies.

Key Stats

Contractor: DPR Construction
Design Firm: SmithGroup
Delivery Method: Progressive Design Build
Square Footage: 268,228
Project Cost: $589 million
Construction Start: November 2022
Completion: July 2025