In the master plan for Ostend East Bank, Sien sets out the interpretation and design for opening up the military, maritime and naturel heritage of this site. The project site extends from the Channel of Ostend to the military compound and includes, in particular, the Half Moon bunker park, the Hundius battery and Fort Napoleon. The master planning phase has been delivered. In the coming years, Sien will work with Herita to implement the master plan. Sien is also responsible for communication and promotion in relation to the project site.