The architectural dialogue between educational heritage and urban utility finds a compelling new chapter in the north of Basel, Switzerland. Here, the historic Vogesen, Pestalozzi, and St. Johann schools form a traditional block perimeter, a protective ring of masonry that encloses a shared courtyard. Since 1980, this void has concealed an expansive underground gymnasium and swimming hall, designed by architects Gass and Hafner. However, decades of water ingress and a layout that no longer served the evolving needs of the student body necessitated a radical intervention. Commissioned in 2017, MET Architects took on the challenge of not just repairing a roof, but reimagining the schoolyard as a high-performance urban stadium that mediates between the subterranean and the sky.
The design process began with a rigorous purification of the site, stripping away a cluttered landscape of defunct skylights, ornamental fountains, and heavy plant troughs. This decluttering was essential to address the structural vulnerability of the underground hall, which is spanned by six massive concrete girders. After the old insulation and pavement were removed, a new 12 cm thick concrete distribution slab was poured to ensure the surface could handle modern traffic loads. This technical restoration serves as the literal foundation for a new sensory experience; where there was once a leaky, fragmented courtyard, there is now a seamless, expansive plateau of activity that feels both monumental and intensely functional.
At the heart of the transformation is the introduction of a vibrant red EPDM synthetic surface, which defines two full-sized basketball courts. This choice of material does more than provide the necessary grip for athletic performance; it injects a bold, monochromatic energy into the grey-toned urban fabric of Basel. The stadium-like atmosphere is further heightened by the clever adaptation of the existing bleachers. MET Architects dismantled the old seating down to the supporting structure, revising and supplementing them with two covered grandstands. These structures stretch across the entire width of the court, creating a sense of enclosure and theater that invites both spontaneous play during recess and organized neighborhood sports events.
The structural ingenuity of the grandstands reflects a sophisticated understanding of tectonic integration. To support the new cantilevered roofs, concrete half-frames were seamlessly attached to the existing exterior columns—which were previously non-load bearing—and anchored back into the original interior girders with steel bolts. This “additive” approach to architecture honors the 1980s brutalist skeleton while giving it a contemporary purpose. The tactile quality of the intervention is found in the details: the raw, industrial finish of the concrete is juxtaposed against carefully finished galvanized railings and stair edges accentuated with sandblasted strips. These elements provide a refined, human scale to the otherwise robust athletic arena.
Looking down from the upper floors of the surrounding school buildings, the visual impact is transformative. The two roofs, projecting six meters over the stands, are finished in the same red synthetic sports flooring as the courts below. This continuity causes the playing field to optically climb the walls, extending the reach of the “stadium” into the vertical plane. This clever use of material as a visual bridge reminds us of how sports infrastructure can act as a catalyst for community identity. It is a philosophy we recently explored in another context, where the use of rammed earth for a community sports club in Ghana demonstrated how local materiality and athletic space can redefine a neighborhood’s social heart.
The Vogesen project stands as a testament to the power of restorative architecture. By resolving the technical failures of the past—such as the watertightness of the ceiling—and replacing an obsolete layout with a focused, “stadium-like” geometry, MET Architects have gifted the city of Basel a versatile urban room. The sunken atriums that light the halls below remain, but they are now part of a cohesive landscape that encourages movement and assembly. In an era where urban space is increasingly contested, the conversion of a simple schoolyard into a professional-grade athletic landmark provides a blueprint for how we might better utilize the “found” spaces of our existing cities.