Interior Space and Exhibition Design Chalk Private Apartament by Hanna Bajer, Pawel Sokol Chalk is a private apartment interior located on the fourth floor of a contemporary residential building in central Warsaw. The apartment covers an area of 340 square meters. Natural materials define the interior, including wood, stone, raw steel and fabric. The same materials are repeated in every space, creating a harmonious, light and cosy atmosphere. A small number of contrasting elements, such as artworks, provide visual accents. Bespoke details were designed for the project. The interior follows the functional and aesthetic requirements set by the client.