This house is for the OE family.
Their first request was that the ground floor should be their summer house, and the first floor should be their winter quarters.
Instead of having two separate properties in different climates, one for winter and one for summer, which is quite common in our country, they would have the two in one place. One on top of the other.

The second demand was that they wanted a mas, the typical catalan countryhouse, similar than the ones nearby.
The third demand, which came a little bit later, was that the house should be as off-the-grid as possible. They'd rather spend money on the climatic qualities of their home than on enriching the big companies that control the energy business.