IDEAN districts feature a clear spatial hierarchy based on the human scale. They present a nested arrangement of shared spaces from the private household to the semi-private block, the semi-public neighbourhood square, and the open plaza of the town. The respective neighbourhood modules promote comfortable and liveable open spaces, thus facilitating collective ownership (e.g. public resources), conviviality, and participation. The needs of children, young people, the elderly and handicapped, and other disadvantaged groups serve as benchmarks for programme development and design. Larger communal spaces are managed by overarching administration bodies such as cooperative societies or neighbourhood associations, or public private associations and the local administration.