CO Architects (Los Angeles) has announced two healthcare project-related promotions.

Lauren Coles and Carolina Ziebell have been promoted to senior associate positions at the firm, responsible for execute strategic assignments and team management.

Coles, who joined the firm in 2015, formerly served as an associate and has more than 10 years of design and project management expertise. Her work includes Scripps Mercy Replacement Hospital in La Jolla, Calif., and the Health Innovation Center at Northern Kentucky University in Highland Heights, Ky.

Ziebell, who joined the firm in 2018, formerly served as senior medical planner. She worked on a variety of renovated and new medical projects, including the Scripps Mercy Replacement Hospital.