Apartment renovation in Mexico City focused on the comprehensive reorganization of the interior space to improve spatial clarity, functional efficiency, and architectural coherence throughout the residence. The project addressed the apartment as a complete architectural system, redefining the relationship between the kitchen, living areas, circulation, and private spaces. The intervention included the full redesign of the kitchen and bathroom, as well as the development of custom-built storage elements integrated into the architectural envelope. These built-in components were conceived to maximize functionality while maintaining visual continuity and precise alignment with the overall spatial composition. Beyond individual rooms, the project established a cohesive material and spatial language across the apartment, introducing new millwork, refined transitions between surfaces, and a more deliberate organization of space. Existing architectural elements, including exposed brick surfaces, were preserved and incorporated into the new design to create continuity between the original structure and the new interventions. The design prioritizes proportion, restraint, and construction precision, treating interior design as an extension of architecture rather than a separate decorative layer. The result is a calm, coherent contemporary residential interior that integrates storage, materiality, and spatial organization into a unified architectural framework.