House in progress Informal cities, Bogota, Colombia as a case study. this research aims to address the step by step development of informal housing and emphasize that its creation is a seed in a continuous transformation process. Through the study of its strengths and weaknesses, potential tools are highlighted to rethink the informal house as a solution for affordable housing and as the starting point for exploring new forms of habitability. Considering Bogota is one of the cities with the highest rates of informal settlements in Latin America, this thesis uses profiling and control applications to define a case study and proposed a possible solution of affordable housing in a defined plot.