The Belval master plan was elaborated in connection with an international competition of the development corporation Agora. Emerging as winner from that competition was the Dutch architectural firm of Jo Coenen & Co of Maastricht.
The master plan divides the total surface area up into four neighbourhoods with different focuses:
- The Blast Furnace Plateau "Cité des Sciences" – education and research facilities;
- The Square Mile – residential buildings, stores, services, cultural facilities, restaurants and hotels;
- Belval Park – green oases, schools, athletic centre;
- Quartier Belval – residential area.