Out of the ten fastest growing cities in the world, two are in Africa, excluding North Africa. This intensifies the imperative to proactively plan and ensure sustainable urbanization and sustainable consumption and production patterns. With an average growth rate of 4 per cent per year, the carbon foot-print per person is certain to rise. As the middle class expands, people will have a higher propensity to spend on new products and services, with construction being a key driver of materials use.