The thesis targets building abandonment and how this issue affects the built environment and provokes a negative impact in neighboring communities. The terminology is studied to explain and to expand the concept of Evolutionary Architecture, a concept originated in the questionable success of adaptive reuse and its incapability of evolving along with the community’s needs. Thus, Evolutionary Architecture is a process where significant buildings, are repaired and improved to give them a different and new use. Maintaining the essence of the building, the original character of the physical and formal structure, but admitting an intervention and partial addition that reflects a contemporary time. It is about the introduction of new functions and new contemporary languages, without compromising the “essence” of the building. Therefore, these buildings maintain their vitality through the memory that evoke and through what they represent for the city and its inhabitants.