Contemporary city development. Individuality of urban facts. The development of modern city is the reason why buildings are increasingly developing making them individual and independent objects in comparison to the existing historical structure. This lack of homogeneity among the different elements which are part of the city, is the starting point of a program which could be the solution to integrate the individual features of skyscraper to the homogeneity of the historical urban environment. The new headquarters of London library represent a little tile of mosaic of the city. The new complex consists of a series of exhibition spaces , large reading areas, computer rooms and a great number of functional areas. The main idea is to think about the common places, as a library, conceiving them as “pieces of the city” and not as isolated places. For this reason the project includes spaces for the community and a new urban park.