6 inch thick of monolithically poured concrete wall with 2 3/4 inches of Styrofoam attached to each side, resulting in a 12 inch thick exterior wall, makes this house solid, long lasting, quite, termite and mold resistant. The Tuscan style home has many energy saving features such as triple pane windows in all key areas, a smart vent night cooling system, air to air heat exchange, tankless water heaters, coupled  with a 4.3 Kilowatt solar system, making this house zero energy use.