If you arrived at the Looierstraat, then go right around the corner and there we are...

From Utrecht Central Train- and Busstation:

Bus nr. 12 (or 13) (" Uithof"): 2nd busstop, cross the street (left). Street right (on the corner is a hairdresser-shop), crossing turn left ("Abstederdijk"), then after 150 meters on the left side (cornerhouse) nr. 23. This is LOOIERSTRAAT 23.