Surgical Center, Gregorio Marañón Hospital

PROJECT: Basic and Execution Project and Technical Management of the construction works of the new Surgical Block of the Gregorio Marañón University General Hospital

The Gregorio Marañón University General Hospital (HGUGM) is one of the largest hospital complexes in the Madrid Community's Public Health System. Its origins date back to 1567. Countless relocations and mergers with other healthcare centers, along with numerous and varied architectural restructurings, have resulted in a complex organization of circulation routes, healthcare spaces, and departments within the more than 20 buildings that currently comprise the hospital.

The block, bordered by Doctor Esquerdo, Ibiza, Maiquez, and Doctor Castelo streets, is organized with several buildings aligned along these streets. The center of the plot is occupied by a group of three buildings (IPMQ, Clínica, and PASA), which are set back from Doctor Esquerdo street to accommodate the main entrance.

The site where this project is located is part of the open space of the hospital complex, west of the Outpatient Assistance Pavilion (PASA), whose partial renovation is also the subject of the work.

The IPMQ (Provincial Medical-Surgical Institute) is the main building of the complex and has seven floors above ground (ground floor + 6), a semi-basement, and a basement, totaling nine stories. The lower floors (down to the ground floor) consist of perimeter blocks forming an octagon and two perpendicular blocks in the center, leaving four pentagonal courtyards between them. The upper floors (from the first floor upwards) are free of the external blocks, with only the cross-shaped blocks rising above, each sharing a main circulation core in the center. On the southwest side of the octagon, the rectangular block is replaced by a five-story cylindrical block attached to the rest of the building.

The project involves the renovation and expansion of the existing Outpatient Care Pavilion (PASA) to construct a new Surgical Block, comprising 30 operating rooms, with their corresponding support areas and post-operative areas, in the open space between the building and the internal road. This expands the available floor area while minimizing the expansion of the existing building. The aim is to consolidate all the hospital's operating rooms, which were previously scattered across different buildings, as well as the post-operative recovery areas and support services, thereby improving the quality of care and optimizing operations. This new block houses most of the new operating rooms on the upper floors and allows for the complete freeing up of the first floor of the PASA, with the affected services from the existing building being relocated to the new block.

The different areas of the program are distributed across the floors according to their functional needs. Thus, existing services are relocated to the ground floors of the extension, improving their current conditions and freeing up space needed for the renovation.

The shape of the open space in which the new building stands is practically rectangular and the surface area it occupies is about 900 m².

The total area of intervention is estimated at 14,418 m² and the budget for material execution at 14,339,491 euros.

The work was carried out while maintaining healthcare activity at all times, which entails an added complexity that has been taken into consideration by dividing it, therefore, into 3 phases.

The Project included a work plan that lasted 22 months, although two months were considered between the three proposed phases for the corresponding transfers, so the net duration of the work would be 20 months distributed between the three phases as follows: