A concrete box is buried on site in order to obtain more privacy in the public spaces. The crystal façade on the south side allows light to enter all day long providing different degrees of luminosity. The empty space in one-and-half-height changes when one starts to descend.

The kitchen-top emerges from the stair steps and faces the dining room and the end of a more intimate and dim living room. A corridor begins in the access and is placed above the cupboard before reaching the bedroom, which floats over the empty space crossing the crystal façade, and flies towards the garden looking for the view of the sweetgum-tree on the west.