Work on the Grevelingensluis lock will begin in 2027, followed by upgrades to the Roompotsluis and Bergse Diepsluis locks.
The acquisition comes as both Belgium and Luxembourg pursue sustainable, digitally advanced urban renewal.
The new school will provide primary and nursery places, a SEND provision, and other modern facilities.
The rise is attributed to measures such as increased housing infrastructure funding and workforce growth.
