An interesting house design with exposed brick elements, terracotta colors, and the desire of the child [client] to have a new modern room with monochrome nuances became the initial idea for the concept of “Modern Monochrome with Warm and Calm Nuances”. Monochrome colors with a dominance of white, a combination of gray gradations and a touch of wood accents to give a warm impression became the choice of colors and materials for this bedroom. The dark gray color used for furniture can also be varied by using wood-patterned HPL. In addition to the selection of colors and materials, the layout of the room with an analysis of needs and also effective space circulation is the main thing to create a comfortable space in this case a bedroom with other functions besides resting such as studying etc.