The building is a set of terraced houses and terraced, but with a structure similar to the twinning association of minerals. Each house is independent of the others, but has been composed as an extension of the same non-repeating geometric structure.
The orientation of the site is very bad, and solar homes must belong to different and independent from each other. Therefore, the houses are staggered, recessed each other in order to allow the passage of solar radiation to most travelers.
The houses are self-regulating solar heat input by controlling the geothermal underfloor heating and underground geothermal system architecture.