De Blas House is placed at the crest of a north faced hill with views to the mountains near Madrid. The house consists of concrete box build as a platform with a transparent glass box roofed by delicate and light steel structure painted in white on it. The poured-in-place concrete box like a cave houses the living areas of a traditional house separated for private and public spaces. The glass box, placed upon the platform like a hut, is a belvedere to which one rises from within the house. The concrete box is 9 by 27 meters while the glass box is 4.5 x 9 meters by 2.26 meters high. The house attempts to be a literal transaction of tectonic and stereotomic questions: a tectonic piece set upon a stereotomic box. [Alberto Campo Baeza]