SJ71 is a minimalist apartment located in Sant Cugat del Vallès, Spain, designed by Maximale. The ground floor, previously segmented into numerous living areas, was reimagined through an open-concept approach, dissolving traditional barriers and incorporating a flow of curvilinear shapes to facilitate effortless movement. Uniformity characterizes these areas, with neutral hues and light grey stone flooring that extends into the terrace areas, contributing to an indoor-outdoor connection. The verdant presence of the surrounding nature reserve, Serra de la Collserola, is subtly echoed in the outdoor areas of each floor through a delicate blend of landscaping. Ascend to the private quarters on the upper floors, and the ambience takes a warmer turn. Here, the complex geometry of the pre-existing timber roof dictates the arrangement of the spaces, with an emphasis on a simplified, streamlined layout. The juxtaposition of the intricately-structured timber roof with natural wooden flooring and warm tones crafts a sanctuary of tranquility and balance.