This family home is one of the first projects by Javier Barba and, indeed,the first bioclimatic project. The land had a steep slope in addition to a busyroad crossing the top of the lot. These conditions, as well as the orientationand good views, led to the decision of half-burying the house. Thus, the roofis integrated into the natural slope of the mountain, minimizing the visualimpact on the landscape and making use of natural thermal and acousticinsulation. The entry to the house resembles the entrance to a cave: a fewsteps lead into the hall, which opens onto a courtyard through which thelight floods into the main living room. The elongated floor plan faces south,so that all rooms and spaces enjoy natural light. In addition, the positionon the land encourages the circulation of air, one of the most basic passiveelements of sustainable architecture. All rooms, in turn, offer spectacularviews of the Mediterranean coast.Partially burying the house and installing green roofs achieves significant energysavings all year round. Striated thick concrete walls, a material that providesthermal inertia are a noteworthy feature. The predominance of straightlines in the plan of the house is only broken by the semicircular design of oneof the walls; which houses the living room, whose sofa follows its curve.This project was selected by the European Commission within the ProjectMonitor Program in 1989, and in the George Wright Forum, as an exampleof one of the world’s best sustainable houses, which is integrated into theenvironment.