This is a study about the morphology of growth in a Colombian intermediate city, based on the analysis of the city of Tunja during the XX century. The study aims to contribute to the understanding of the production and transformation of the city and its relation with the territory. The morphological reading reveals clues to understand the society that produces the city. Given that most of the urban soil has been occupied by uses related to housing, the study focuses on those types of uses. Cities in developing countries are generally seen as unorganized. Because of this, before attempting this simplistic approach, the study aims to find the logic of occupation associated to hereditary models and to power relations among urban agents. Following this, the following questions are answered: What are the urban growth models in Tunja and what is their relation with urban agents? What is the space-temporary expression and influence of the agents that construct the city? The answers to these questions are useful to formulate policies, plans, and projects that modify problematic situations, and in turn, to follow the appropriate mechanisms that allow this.