Dec 18, - Bottom-up development schemes are projects that are planned and controlled by local communities to help their local periphery area. Top-down development schemes are usually very expensive and a country often has to borrow money from large organisation like the World Bank or from companies in developed countries. Nov 7, - Top-Down and Bottom-Up Processes for Rural. Development and the Role of Architects in. Yunnan, China. Yun Gao. Centre for Urban Design.