From Utrecht take the motorway to Arnhem (A12). Take the Enschede/Doetinchem exit (A18), then follow the signs to Doetinchem (exit 3). At the end of the exit turn right, then carry straight on at the traffic lights, straight on over 3x roundabouts, carry on over the bridge and then turn right at the traffic lights. Turn left at the next set of traffic lights, and after 100 metres turn right into Gasthuisstraat and then take the first left (Gasthuissteeg).
Adress for your navigationsystem: Gasthuissteeg.