The town of Bois Seigneur Isaac hosts an abbey and a chateau. The Norbertine Abbey chapel dates from the 16th century, and features a relic of sacred cloth that has become the object of many pilgrimages. The chateau is an 18th century building which houses some valuable art collections. It is still occupied by the Counts d'Oppeurs.
Bois Seigneur Isaac is a borough within the municipal district of Braine-l'Alleud.