The Jules Bordet Institute is one of the largest integrated cancer centers in Europe. Located at the heart of the Erasme campus in Anderlecht, Belgium, the university hospital's structure evolved from the objective to establish smooth connections with its environment. The building's luminous patios and extensive timber cladding rhythmize the collaborative design by Brunet Saunier Architecture, Archi 2000, and TPF Engineering, emanating in an interplay of natural shades and lights and a welcoming atmosphere. Through texts, photographs, and plans, Institut Jules Bordet Instituut retraces the different stages of the project. From the initial medical vision to the arrival of the first patients, the publication outlines the architectural approach to intensifying the relationship between medical practice and research, integrating technological changes, and improving the comfort of its patients.