The António Arroio School is a complex of school buildings from the second phase of school construction in Portugal. It was opened in 1963. The ground floors, providing direct access to the exterior, were reorganised and the main entrance was relocated to link two new bodies with an east/west layout, extending teaching and non-teaching activities into the school grounds.
The new specialised classrooms – studios and workshops for diverse areas – are now housed on the upper floors.
The new bodies house the areas designed for use by the local community and the sports spaces.
In the north patio a small pavilion was erected as a support space for the ceramics workshop.