The subsoil of the Raval neighborhood holds much of Barcelona's past and its urban and social transformation. Construction work on the future CAP Raval Nord primary care center on Montalegre Street has uncovered seven centuries of history preserved less than three meters below the surface. Among the discoveries are two clay kilns, each two meters in diameter, dating from the 14th and 15th centuries. A central pillar that supported the structure of the kilns, used for making ceramics and building materials, is still visible. At that time, the Raval was undergoing a significant transition: it went from being an area of ​​orchards, fields, and vineyards, with isolated religious institutions, to also hosting artisanal activity. "The artisans came because there was water available and they extracted clay," explains Jordi Ramos, an archaeologist with the Territorial Services of Culture in Barcelona. The kilns typically had a short lifespan and were eventually abandoned. Above it, houses were built, and later, various buildings and structures of the Casa de la Misericordia (House of Mercy), whose origins date back to 1580. The discovery confirms how this care center underwent successive transformations and changes to adapt to the evolving needs of a constantly growing city. Archaeologists have been excavating the old chapel for a year, in parallel with the construction of the CAP (Primary Care Center). The stones and foundations of the past, along with fragments of stewpots, plates, oil cruets, and decorated tiles, stand in stark contrast to the crane and the immense blocks that will form the foundation of the new primary care center. These are the last glimpses of this buried past that will be seen, because only the ceramics will be preserved from the remains found and sent to the Collections Center of the Barcelona History Museum in the Zona Franca. The structure of the Capella will also be maintained, a space protected as a cultural asset of local interest.This will be clearly visible to CAP users.

The project for a new health centre in North Raval's Capella de la Misericòrdia, after it was decided the space would not hold Macba's expansion, is on its way. The Generalitat has awarded the project to Nogué-Onzain-López Arquitectura SLP, which is the team that won the competition in which 43 companies participated. The winning project plans to preserve the structure of the chapel and integrate it into the new building. The forecast with which it works, as reported by the City Council, is to launch the works during the third quarter of next year, before the summer, once the drafting of the project has been completed. The new primary care center Lluís Sayé ought to be completed in 2025.