Brussels-Capital Region : protected areas in the Brussels Sonian Forest: vulnerable planting or regeneration plots, refuges for wildlife, fragile being recolonized areas. In those areas, walkers must always stay on the paths and dogs must be leashed (Order of 30 March 1995).

Brussels-Capital Region : protected areas in the Brussels Sonian Forest: vulnerable planting or regeneration plots, refuges for wildlife, fragile being recolonized areas. In those areas, walkers must always stay on the paths and dogs must be leashed (Order of 30 March 1995).

Brussels-Capital Region : building means any physical construction formed of rigid exterior walls, roofed, permanently attached to land, and designed to accommodate human activity and / or shelter for animals, goods and machinery.

Section of the municipality's territory with a particular use of the land, as stipulated by graphical and written regulations, authorised by decree