Bruzkus Greenberg wraps Berlin penthouse around a dark-blue wooden core

The architecture firm Bruzkus Greenberg, based in Berlin, has transformed a 75-square-meter penthouse located in Prenzlauer Berg. Central to the design is a multifunctional wooden core, referred to as the "blue box," which is stained blue. Founders Ester Bruzkus and Peter Greenberg opted for an open-plan design by eliminating the fireplace and internal walls, allowing the blue box to house the entrance, cloakroom, storage, and a built-in banquette. A staircase provides access to a roof terrace equipped with wooden benches for additional storage. Mirrored panels on built-in cabinets create an illusion of more space, while a light-blue curtain can separate the sleeping area. The living room showcases a custom butter-yellow Sophia 3000 sofa, with furnishings curated through Bruzkus's Studiocoucou. Photography is credited to Pion Studio.