[1] It is located about 5 kilometres (3.1 mi) north of the city centre of Namur just off the old Gembloux-Namur (N904 road) at the top of the steep northern valley slope of the river Meuse.
The name of the Château is derived from the Latin word falise (Cliff, French: falaise)[2] because of its position close to the top edge of a steep declivity of the valley sides of the river Meuse at the foot of which is the city of Namur.
The Houyoux is used by the land transport routes from Gembloux and Namur, to descend into the Meuse valley from the plain above.
In 1638, King Philip IV of Spain, leased this manor in 1638 to Gilles I of Glymes, Lord of La Falize, for the sum of 1500 florins.
[2] The Château was the headquarters of William of Orange during the Siege of Namur in 1695.