Quite a lot of concrete, isn’t it? The home of Pedro Reyes and Carla Fernández is close to feeling like a castle, with large open spaces and contrasting close corridors. The library is particularly impressive, with its two levels taking up one entire wall of the generously sized living area. See more of the space over at Freunde von Freunden.
This image gives a broader view of the living area (via Adam Wiseman).
And a concrete sink, of course.