Located in a residential area in Tepeji del Río (a locality in Hidalgo, Mexico), Casa Moulat is a representative work of the use of colored concrete. The project is based on integrating the construction into its natural landscape, and the contrast with the built environment of the surrounding golf course. It's a house that explores the duality of open and closed spaces, inside and outside. The residence unfolds on one level, sitted on a base of carved stone, whose slight differences in altitude responds to the soil's gentle slope. The interior spaces of the houses are adapted to the site's topography, revealing the foundation as a skirting board that changes in height. Above the foundation, two bodies of earthy-colored concrete rise up, housing the private spaces. Both volumes are connected by two large concrete beams that supports an openwork wooden structure, which gives to an outstanding double pitched roof. The space beneath this element is completely opened, in order of its Hughe windows, turning the living area into a veritable covered terrace that creates a link between the inside and outside. A lofted atrium is nestled within the roof's gable, hiding the kitchen underneath it, providing a strong contrast with a black furnish and materials. The main feature of the project is achieved with the collaboration with local suppliers and craftsman, to obtain a unique color for the concrete walls, that reminds to the soil's region and matches the warm tones of the sunset.