The building under review was designed in 1968 as the first phase of a structure that was originally intended to be nearly double the size of what was eventually constructed, following the demolition of the old clinic that was still in operation. As a provisional solution, the project required studying the partial addition of a new wing to serve as a connection between the old building in use and the newly projected construction. This added wing needed to provide a staircase to access the old building —which had been left without one— and to house a stretcher lift allowing communication between the levels of the old building (which did not align with the new ones) and the new operating theatre floor, serving the needs of both structures. The building occupies a mid-block site with a façade on Carrer de Madrazo, within one of the closed blocks resulting from the Cerdà plan, bounded by Madrazo, Saragossa, Sant Eusebi Streets, and Avinguda del Príncip d’Astúries. The architectural solution was guided by a dual aim: first, to organise three overlapping uses efficiently —parking across three basement levels, a dispensary for members at street level, and a trauma clinic in the six upper floors; second, to provide the clinic with an urban façade on Carrer de Madrazo amidst residential buildings. The use of laminated iron beams and joists allowed virtually free-plan floors. The only fixed element is the original vertical circulation core: two stretcher lifts, a service staircase, a service elevator, and a pair of freight lifts. This layout was initially conceived to serve the entire building once the first phase was doubled by demolishing the old clinic on Carrer de Saragossa. Later, the staircase to the old building and the stretcher lift connecting it to the new operating theatre were incorporated as permanent elements. The ground floor accommodates the dispensary and independent access points to each functional area, separate from the parking; it also contains the entrance to the clinic and an access to the old building’s staircase, located in the partially added wing. The first basement allows direct ambulance access to the stretcher lift, avoiding inconvenient street parking. The dispensary floor is organised around a circulation loop, with two waiting areas integrated. Independent, opposite entrance and exit doors define the interior circuit. The adjacent radiology section allows a clear, independent flow of patients. Various dispensary elements —reception, treatment rooms, circulation loop, waiting areas, radiology, exit control— ensure total autonomy of movement and perfect monitoring of all activities. An emergency dispensary connects directly to the entrance and reception area. The operating theatre and intensive care floor includes a small public area at the stretcher lift exit, with the remainder devoted entirely to clinical work. Rooms closest to the street façade contain four individual cubicles and corresponding monitoring and care services. A corridor along the façade allows relatives to view and communicate with patients by telephone. The operating theatres occupy the interior, full depth of the site, with two symmetrical theatres separated by surgeons’ sinks, instrument and autoclave areas, and preparation and anaesthesia rooms, plus a special room for plaster treatment. A control post at the rear oversees all movements within the theatre area. Staff changing rooms and a relaxation area are located nearby. Above the service mezzanine are the patient rooms, organised in a “spine” layout: single-bed rooms facing Carrer de Madrazo and two-bed rooms facing the inner courtyard, arranged on either side of a longitudinal corridor connecting, via openings, with floors above and below. Each room has an anteroom with wardrobes and its own sanitary facilities; provision is made for a sofa bed for a companion if needed. The stretcher lift and service elevator core, staircase, nursing station, floor office, and other general services are located in the hinge connecting the new building to the old clinic, which could later accommodate the second phase. A floor nurse station positioned between the common lobby and service core monitors all activity. The top floor, like an attic, houses the clinic’s general services: adjacent to the street façade are the kitchen and a dining room for staff or visitors; at the rear are laundry, ironing, and clothing control facilities. The wing added after the initial phase, which primarily houses the staircase of the old Carrer de Saragossa clinic and the stretcher lift to the new operating theatre floor, contains surplus space now used for ancillary services: medical administration, nursing management, on-call doctors, etc. As noted at the start, the free-plan structure allows the façade walls to serve solely as enclosures without any structural function, and openings are placed without structural conditioning. The composition of the façades reflects both the internal functional requirements and the urban semantics demanded by its presence within the city fabric. The solid Carrer de Madrazo frontage, punctuated by rectangular openings as shown in architectural documentation, is interrupted at street level to create a porch with a walled glass-block background, sinuous in plan, to clearly locate the access points to the building’s distinct functional areas. The entrance to the old building’s staircase, incorporated into the composition of the new building, naturally introduces an element of contradiction and ambiguity.