Spatial sustainability focuses on the geometric and configurational ordering of space in the city. It raises the possibility that the generic spatial form of the self-organised city in and of itself contribute to sustainability. More precisely, the dual generatic form of the city brought to light by syntax, as a foreground network of linked centres at all scales set into a background network of largely residential space, seems already to be created by the interaction of economic and social factors, against a background of the minimisation of the energy required for movement through the creation of what we might call general accessibility, that is the accessibility of all points in the system to and from all others.
Hillier, B. (2009),Spatial sustainability in cities: organic patterns and sustainable forms. In: Koch, D. and Marcus, L. and Steen, J., (eds.) Proceedings of the 7th International Space Syntax Symposium. (pp. p. 1). Royal Institute of Technology (KTH): Stockholm, Sweden.pp. k01.2-3.