The main interest of the project is to respond to a series of themes: the relationship between a steep topography and the new construction; clean energy production; economic maintenance aspects; a zero-energy home strategy and specifics customer’s needs are among the issues that intend to establish a philosophy of growth and enrichment for the specific natural site.

The structure is planted in three levels ranging from: street level 0 (access), level -1 (all social areas) and level -2 (bedroom and private areas). The central volume of the house is oriented towards the south, and it acts as a thermal mass (thermostat device) allowing all adjoining areas to be heated regulated.

As an economic strategy, level -2, where bedrooms are located, is a volume aligned with the natural contours lines of the site topography and with the orientation.

Overall project footprint area answers to a logic of “Plant Salvation”; a maximum number of oak trees are kept. This enables the correct distribution of green roofs that will produce all energy required by the house.