Casa Mínima is a passive house nestled in the serene hills of Cantabria. Located in the heart of the Pasiegos Valleys, this project emerged from the ruins of an old cabin, embodying a vision of conscious and honest construction. The restoration of Casa Mínima was approached with respect and precision, adhering to the Passivhaus standard while utilizing natural materials such as lime, stone, and wood. Each design decision was made with careful consideration, allowing light to permeate the space while maintaining its rural essence. Recycled beams were repurposed as furniture, demonstrating an architectural philosophy that prioritizes harmony over imposition. Casa Mínima embodies the principles of passive design while ensuring comfort and functionality. It features high-performance thermal insulation, mechanical ventilation with heat recovery, and a sealed wood stove, all contributing to a healthy and balanced indoor environment. Designed to accommodate up to six guests, the layout includes two bedrooms with king-size beds, two full bathrooms, a living-dining area, an integrated kitchen, and an exterior patio. The interior features an open day area that seamlessly integrates the kitchen, dining room, and living room. Expansive windows frame picturesque views, dissolving the boundaries between indoor and outdoor spaces. Natural light transforms the ambiance throughout the day, creating a dynamic and inviting atmosphere. The two bedrooms serve as restful retreats, designed with simplicity and noble materials to foster serenity. Carefully framed views enhance the tranquil environment, while the bathrooms echo the home's essential aesthetic with mineral finishes and soft textures, turning daily rituals into sensory experiences. An extensive patio extends the livable space outdoors, paved with reclaimed stone slabs, it serves as a threshold between the home and the surrounding countryside—a perfect setting for contemplation and conversation. Project credits Architects: Estudio Mínima Photography: Biderbost Photo