ST. LOUIS — St. Louis-based McGrath & Associates has begun the $2.8 million renovation to the recovery room at St. Louis University Hospital, located at 3634 Vista Ave. in St. Louis. The project will renovate and expand the 16,000-square-foot recovery room, as well as space used for locker rooms and offices. The capacity of the room will increase from 25 to 41 beds. Completion is scheduled for May. Ross & Baruzzini is serving as project architect, engineer and interior designer.