In the following work, it has been tackled the subject of the impact of the restoration project on the city, through the case of Legazpi old Market in Madrid and the project for its rehabilitation. The story of the building offers an important starting point to define some guideline for study and project phases of a restoration on an industrial building in the city. This case allows us to analyze the links between the city and the environment and understand how these relations can be transformed in points of strength of building and neighbourhood. The building, that was forged as a fruits and vegetable market in the in the early 1900s, is not properly an industrial building but belongs to the industrial archaeology, not as a production place, but as a workplace and for its concrete structures similar to that of the 20th-century factories.