About 500 metres on, turn left into the Victoria-Haus car park (last turn lane before the major crossing with Basler Strasse, Victoria-Haus is the building on the left corner of the crossing).
Public Transport
Take the train to Freiburg Hauptbahnhof.
Take a 27 bus to Merzhausen, departing from the station side of the street (close to, but not on the bus terminal).
Get off at Reiterstrasse.
You will see Victoria-Haus across the street slightly to your right, a modern building of red lime stone on the corner with Basler Strasse.