Contemporary house named Lithos, with one main floor and a basement, featuring Rio de Janeiro’s first environmental quality and sustainability certification (Green Building Council - GBC Casa), located in a gated community and designed by architect Duda Porto. The concept of this single-level house is less excess and more essence, conveying a sense of lightness and practicality. The entrance will stand out with a sculptural wall providing access to the living and dining room with cross ventilation, integrated with the kitchen, an office with a bathroom (convertible into a suite), powder room, kitchen, laundry area, and staff quarters with a suite and bathroom. The ground floor will feature the private area with four suites, with walk-in closets and outdoor veranda areas, as well as a spacious gourmet area, changing room, powder room, sauna, swimming pool with deck, garden, and drone helipad. The basement will offer parking for seven vehicles, storage areas, a changing room, and technical areas. The residence will feature energy-efficiency systems, solar power microgeneration, a water reuse reservoir, cistern, automation system, CCTV monitoring, and an automated irrigation system.