This private house is located in a suburban area in Ciudad Real, a city located 300 km from Madrid. In this part of the city, the urban restrictions for building are already settled, but most of the area is not built yet. After studying urban restrictions for volume and height of constructions, the new volume is defined occupying the maximum height allowed and keeping the setback established.Following this resctrictions as an architectural tool two volumes are defined attached to the limits of the plot containing garage, kitchen, toilets and a dormitory. This two volumes are conceived as “blind boxes” made of concrete, without openings and connected by the flat roof of the central volume. The central volume is lower, allowing an upper terrace on the flat roof. This volume is conceived as a “transparent box” containing living areas which need more light and height. The distribution is solved with four smaller units made of stacked glass allowing the light come in but keeping privacy inside. Althought this volume has two floors, there are some spaces of double height like the living room. The strong conceptualism of this unmatched proposal, evidences a clear distribution of different living areas, keeping privacy but withouth giving up the concept of an open floor plan, with fluid communications and open glass façades. The dualism of the materials used enhances the abstract lecture of the composition of this unique house.