The client suggested 8 apartments on 4 levels, 2 apartments for level. The 2 ones on level 000 would have garden and swimming pool. The others 6 would enjoy a common space with swimming pool on level 400. We proposed changed it into 8 duplex houses totally independent, each one has its own elevator from the garage. Four houses would be developed on level 000 and 100, with private garden and swimming pool on level 000. The other four houses would be developed on level 200, 300 y 400, with private swimming pool and green area for each house on level 400. Two months of deep thoughts give form to this, directly from the computer, without previous sketches. The space to double or triple heights where delivers the private elevator and where stars the staircase, becomes the center of the house. The diaphanous and transparent stair does not touch the walls and it floats over a water surface, as a reminder of the house being on an island, where the ocean is the protagonist. The circulation of the house around this central space evokes and reaffirms the concept of the house versus apartment. Due to the subtle wood bridge to cross the double height space, the elevator can stop on each level.