PO04 is a minimalist home located in Madrid, Spain, designed by Atelier_M. In this project, a 70-square-meter rental apartment, the design team focused on preserving the apartment’s original character while working with limited resources. Key architectural elements such as ceiling moldings, original doors, and facade shutters were retained. A uniform color scheme was applied throughout the space. Materials were selected for their simplicity and cohesion: porcelain tiles in the kitchen and bathrooms, wood flooring, and paint in similar tones. The kitchen’s color palette matched the porcelain tiles and paint, creating a warm and neutral ambiance throughout the apartment.