The actuality of the housing problem hasn’t changed anything about the debate of the 20th century, with the notable exception of eco-sustainability. The lodging will need to, more than ever, be oriented along an East-West axis, and shall place its habitable areas and relatively plentiful views to the South, while service and mechanical areas, and ventilation openings will face to the rear, it’s also opportune that the East and West sides are blind. Balconies and overhangs shall protect the lower floors from excessive summer light. In addition to good thermal protection, these lodgings will also be equipped with fotovoltaic and solar systems that will store thermal and electric energy that in this particolar case are placed on the usable terraced space.