Layout on sloping sites - retaining walls and density

Particular care will be necessary in preparing layout proposals on sloping sites in order to minimise the impact of differences in level between adjoining properties, existing or proposed. The use of prominent retaining walls within and at the margins of sloping sites will be unacceptable. In such cases the Department is only likely to accept low density development which would entail minimal works of excavation. Developers may also wish to consider the use of specific house designs which respect topography, such as split level dwellings. Where changes in ground level between buildings are unavoidable the Department will generally expect these to be accommodated by the use of planted banks. In all cases developers will need to demonstrate that their proposals will avoid significant overshadowing, overlooking and loss of privacy.