Ooiio Architecture’s House 64 Renovation Transforms a 1960 Flat
Amy Duong — December 10, 2025 — Art & Design
References: ooiio
House 64 is a renovated Madrid apartment completed by OOIIO Architecture to reorganize a 1960 layout around natural light and ventilation. The 689-square-foot home was previously divided into compartmentalized rooms that blocked airflow across the two parallel facades. The renovation removed nonstructural partitions and introduced an open configuration with linked living, dining, kitchen and bedroom zones. Storage modules were incorporated as fixed volumes that define circulation while keeping the sightlines clear. Surfaces were updated with new tiling, built-ins and color applications.
The project maintains the original footprint and uses strategic spatial adjustments to support contemporary residential needs. Lighting, cabinetry and flooring were selected for durability and uniformity across the apartment. Daylight now passes through the full depth of the unit due to the reduction of solid barriers.
Image Credit: OOIIO Architecture
The project maintains the original footprint and uses strategic spatial adjustments to support contemporary residential needs. Lighting, cabinetry and flooring were selected for durability and uniformity across the apartment. Daylight now passes through the full depth of the unit due to the reduction of solid barriers.
Image Credit: OOIIO Architecture
Trend Themes
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Open-concept Living Spaces — Open-concept living designs that maximize natural light and cross-ventilation are redefining modern urban residential architecture, offering opportunities for increased energy efficiency and wellness.
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Multi-functional Design Elements — Integrating storage and space-defining modules as part of the livable space presents disruptive potential for optimizing small urban apartments.
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Sustainable Renovation Practices — Utilizing spatial efficiency and light-maximizing renovations in older buildings aligns with sustainable urban development trends by reducing the need for new construction.
Industry Implications
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Urban Real Estate — The urban real estate sector is embracing the transformation of older apartment stock to meet contemporary demands through strategic renovations.
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Interior Design — Interior design is increasingly focusing on creating flexible, aesthetic, and space-efficient solutions to enhance small urban residential environments.
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Sustainable Architecture — Sustainable architecture focuses on the adaptive reuse of existing structures, emphasizing energy efficiency and the modernization of living spaces.
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