Casa z by Peter Zumthor In Haldenstein, Switzerland, Peter Zumthor designed “Casa Z” a concrete house wrapped around a garden at its core. Every space—whether open studios or private rooms upstairs—flows toward this garden, framed by carefully placed windows and shifting ceiling heights. Concrete gives it weight, glass opens it to light, and together they create an atmosphere that’s quiet yet powerful—an intimate reflection of Zumthor’s architectural philosophy. To visualize it, I built a 3D mod