Join the motorway E 429 (A8) connecting Brussels with Lille and leave at exit n° 27 to Marcq. Do the same if you are arriving from Lille. ( Do not take the earlier exit signpost Bassilly but bypass it).
After the exit you find yourself on the road joining Enghien with Ath (N7) (called Pavé d’Ath).
Take the direction to Ath. After about 3km you reach a signboard “BASSILLY”.
The first street on the right is “rue de la Procession”.
You find n° 36, after the bend on the left side (not on the bend, it is the 36A).