The project distributes 105 housing units in three volumes with a fan-shaped layout on one same double-height volume containing a health center and a civic center. Faced with the complexity of the context – in the 22@ district, on an urban block where the city fabric is cut off by Avinguda Diagonal –, the project adopts a double strategy: on one hand, the plinth acknowledges the layout of the city’s gridded expansion (Eixample), following its alignments; on the other, the volumes extend the sequence of neighboring blocks that respond to the Diagonal. Both geometries meet at the corner, reinforcing the identity of the Cerdà plan.

Each building has seven or eight apartments per landing, with a central corridor that is illuminated and extended at the ends, to house a vertical core towards the north and a communal balcony with south-facing views. On the roofs are the laundry area, clotheslines, and solariums for kitchen gardens. The roof of the plinth is fit out as a terrace at the height of the treetops; with benches, it becomes a viewing platform that merges the three buildings together into a single community. Each one has a multipurpose space, connected with the exterior, to organize activities promoted by the social services department.

The typical housing unit, on a rental basis, has an area of 40 square meters with spaces organized around a central core containing the bathroom. The bedroom and living room are devised as a continuous and flexible space, articulated by the terrace. The kitchen and laundry room are added to the sequence of spaces around the core. The rooms are never closed; via sliding doors or movable walls the spaces are connected or separated, achieving different degrees of privacy.

The structure of boundary walls and reinforced concrete columns, interspersed inside, ensure that each apartment is column-free. The outer enclosure is carried out with the SATE (exterior thermal insulation) system, with an exterior insulation of 120 mm and window frames of galvanized steel industrialized parts, while the ground level, as if it were a large communal plinth, is enclosed with large precast GRC pieces. Tilting aluminum blinds on the facade generate an intermediate space that functions as thermal and acoustic cushion. Using quality exterior insulation avoids thermal breaks, ensuring maximum comfort inside the apartments. The building is connected to Districlima, a district heating and cooling network, and earned an A category in energy efficiency.