The project concerns the renovation of a penthouse on the fifth floor of a building located in Rome, in via Graziano (residential street in the upper high part of via Baldo degli Ubaldi), the classic distribution of the early 60s was redesigned by eliminating the large hallway at the entrance and the long access corridor to the various rooms, opening the spaces between them making them more airy and bright, while functional and containing "volumes" -a centro stanza- redistribute and rearrange the internal space. The characterizing element of the project is the permeability of natural light, the flag windows have therefore been transformed into large windows with two sliding doors and the classic doors have been replaced by sliding or pirouetting partitions at full height. The best use of natural light allows to perceive the different spaces as a continuum and to give the volumes depth and three-dimensionality. Instead, it's the use of flooring with different colors to relocate the various rooms in plan, from the ceramic gray tiles for the living room, light dove grey for the bedrooms and bathrooms, to the hexagons tiles from dark gray to light gray for the kitchen and for "the entrance" to the sleeping area. The main colors of the house are white, black given by the use of fabric-effect wallpaper and the shades of gray of the "volume" that the kitchen contains. But along the internal perimeter of the apartment are located in full color spaces the study, the two bathrooms, the laundry room and the closet, the walls and ceilings here are treated with saturated or pastel colored glazes. In the volume of the kitchen and bathrooms the decoration process was "dried" stopping one step before the end, with attention to the tactility of the materials, the surfaces were treated with ig21, in the "kitchen" concrete color "raw" effect, deliberately left unfinished, in the bathrooms colored with glaze. All the furnishings are designed by the architect, from the bookcase placed in front of a forest effect wallpaper, to the table top in solid wood bands, to the use of different marbles for the kitchen top, to the wardrobes, for the "industrial" use of metal beams to finish the walls, to fix the rails of the sliding surfaces and to support the working top and heaters. The furnishings were "collected" instead by the owners, a young couple, he Roman she Persian, in their various travels, such as wood logs for use as tables among the sofas made to design in Bali, the floor lamps taken in Morocco and transformed into candle holders, canvas prints of photos made around Indonesia and Persian rugs taken in Iran.