Pàmpols Arquitecte designed this residential building in the historic center of Lleida, Spain. This brought with it the challenges of doing something new in an area with rich history. Dealing with social housing construction in a old town, grouped and serial, suggests the establishment of parallelisms between simple function tasks and complex purposes, which puts contemporary building housing in a strong need to standardize. Responding to this situation Pàmpols Arquitecte say, “we have sought perfection, harmony, accuracy, and economy of space. All this is not just perfection and harmony, but beauty.” In the proposed architecture, the image of the block is only suggested by the volume of two resounding buildings slipping between them. They define a horizontal movement – the only one possible, given the fragmentary visions of them one could have when approaching, the one over the other, pierced by rows of windows with various fastening systems.