Urban developments can be considered sustainable if resource consumption, waste and pollution are minimised and kept below in levels that are maintainable. If the mixed-use development is fine grained with highly permeable streets and compact urban forms, the area will be sustainable. The development is considered sustainable if:
1. It is designed at human scale and compact enough to accommodate walkable streets for housing areas.
2. There are robust with buildings and spaces that can change and be adapted over time to meet the emergent challenges and contribute to economic sustainability.
3. The development’s design is logically distinctive, respects the local context and has a historical narrative within the urban fabric.
4. The energy and resource conservation is implemented within the built environment. For example, building materials, road construction, service infrastructure, etc. make use of environmentally efficient means to conserve resources.