Can a residential building revitalize the spatial fabric of one the most disadvantaged neighborhoods of the city? The solution is to introduce one floor of duplex apartments. Since duplexes are regarded as one floor it is possible to create a volume that formally consists of seven floors, stays within the height limitation, and has the capacity of containing 111 apartments. The result is an overcapacity of 12 apartments, i.e. extra space! The biggest luxury architecture can offer residences in Puente de Vallecas is space. By shifting the floors of a conventional housing slab outwards large galleries are created. Subtracting the volume of 12 apartments at the ends of the volume creates spectacular space collective program. The alternating shifting of floors not only creates wide galleries, it also makes it possible to create an outside circulation. Spiralling along the building this circulation links the entire collective program. Furthermore the net will provide maximum contact with the surrounding area.