Each of the five floors of the building follows the triangular shape of the site on which it is located. The Alfredo Arribas Arquitectos + Lluís Tejero Arquitectos team devised a typical structure based on two perpendicular axes that organize the interior distribution of each floor, organizing the public spaces and the private areas of the services provided on each of them.

The underground conception of the new pavilion directly avoids the aesthetic aggression towards the historical complex that makes up the neighboring pavilions of the historic site of the Hospital de la Santa Creu i Sant Pau created by Lluís Domènech i Montaner, one of the masterpieces of Catalan modernism. But in addition, the AA + LTA team conceived a solution to improve the integration in the entire Puigvert Foundation Clinic building, which stands adjacent to the new pavilion, built in 1964 under the premises of the rationalism prevailing at the time. Thus, a ceramic coating or skin based on ceramic brick has been applied to the exterior of the building that completely covers the south façade, and which acts as a link with the historical construction thanks to the use of this material.

The interior design has been attentive to a series of details that mark a refined and clean style that defines the personality of the building even without giving up functionality. Thus, given that all the plants have the same structure, the use of a different color was attributed to each of them so that the user could immediately locate themselves. A reason for functionality is the predominant use of clean and durable materials such as HPL laminate, which is present in both the wall and door coverings and the interior furniture pieces.