Population growth is currently one of the main challenges faced by all countries and their authorities. Problems generated by this trend include the formation of slums and their interaction with other elements of society, especially in developing countries where this phenomenon is significant. This situation is not new, even in Colombia. As a member of the United Nations Organization and as a developing country, this Latin American nation is supposed to conform to the Millennium Development Goals by 2020. With respect to the improvement of the condition of slums addressed in target 7d of goal number 7, a considerable number of measures have been adopted by authorities at different levels. Nevertheless, several cities and regional authorities have disregarded their obligation to reach the Millennium Development Goals.