Follow the A4 towards Den Haag,
from Den Haag take the A12 towards Utrecht,
Leave the A12 at the exit Zoetermeer / Pijnacker (exit number 7),
at the exit, turn right (you are now on the Oostweg)
then the first right (Zuidweg)
the first right (for McDonalds in the Zilverstraat)
then the first left (Chroomstraat)
in the next turn right, turn left into Cobaltstraat.