The architecture of a Hollow-Rock Geography as origin The preschool is built on the urban limit of Haro. A place without buildings, marked with road lines, announces its immediate apparition. The strong slope delineates and discovers for us the possibility of an architecture of a geographic origin.

Mineral structures We conceive an architecture dictated by crystallographic laws. The day care center is conceived as a great rock, a visible structure for that buildingless city.  The building is erected from an array of horizontal and vertical concrete planes that construe in their organization the spatial structure of the center. 

Hollowness as habitation The strong slope of the site crystallizes into two great horizontal planes. The lower one is anchored in the original topography, hosting maintenance and service facilities. The higher one gives room to the day care center's own use, elevating them from the existing topography. Both planes are intersected with a display of four great diagonal walls that organize the school program. From this intersection the day care center unfolds as a continuity of ample hollows that reveal their interior as a new architectural geography.