Zellerbach Room 170 can be accessed by entering through the stage door of Zellerbach Hall (located down the stairs behind the Cal Performances box office — to the left of the Zellerbach Playhouse). Go straight down the main hallway, then turn left at the end of the hall. Room 170 will be on your left, across from the restrooms. The stage door personnel can also assist with directions. If arriving by car, plan ample time for parking. Map.