Below, you can find an interactive map of Zurich with the Center for Ethics (building labeled ZOA).
With public transport
The closest stations are "Botanischer Garten" (Bus 33) and Höschgasse (Tram 2 and 4). It is a 5 minutes walk from Höschgasse and 2 minutes from Botanischer Garten.
By bike or car
Address: Zollikerstr 117, 8008 Zürich.
Bikes can be parked in the courtyard of the center for ethics, other vehicles must be parked in the parking areas of Zollikerstrasse or the parking lot of the Botanic Garden in front of Zollikerstrasse 113.