"Well organized and executed community initiatives build capacity create important relationships between people and their environments and between the people themselves. Poor urban areas in Colombia are normally boundary sectors that are characterized by great shortages of resources; such as the lack of urban infrastructure, decent housing and social services. These settlements originate in one or more of the following ways: . Purchasing of plots by public or private companies - the "standard way", . Plots that are bought by illegal developers "clandestine" or . Land invasion - communities of settlers that later achieve full development thanks to self build and/or self help practices. The impact of these sectors in Colombian cities is huge. In Bogotá more that 50% of the urban fabric has been developed spontaneously by the inhabitants without the "interference" of any private or public planning institution. People themselves have built and improved their own habitat often using informal participation channels to achieve their goals. During the research work, 28 different projects in Bogotá were studied to analyses how community participation works in community creation. The study of community led neighborhood development projects highlight a number of important issues: Public spaces are very important in low-income settlements. The houses are basic therefore the urban space replaces those facilities. Often it is the public spaces that give identity to the neighborhoods. Community organization is crucial to the success of a development project. Strong communities were found to be more able to develop better projects; on the other hand, when community links were not very developed, projects were more likely to fail. External technical and organizational support is essential to success. Building capacity is perhaps the most important accumulated resource for these initiatives. It is the "know how" that allows the community to engage in other projects that improve their urban, architectural and social life. "