This apartment of 200 m2 in size is located in the neighborhood of one of the main Warsaw parks. The owner’s main priority was to have the space finished with diverse materials. The investors expected top quality natural materials which are at the same time not too popular for the interior arrangements. Thus stone and wood were chosen for the facing, however not in marble or travertine, and dark wood was used instead of exotic wood, which is so popular nowadays. The overall effect of the apartment is produced by every wall having been designed thoroughly and finished with exclusive materials. In the corridor, on one side, there are upholstered panels with copper elements, and on the other side, laminated glass panels decorated with 3D graphics. The full-height of the corridor door is finished in black varnish and fitted with night-time LED lighting. In the entrance hall there is a 3-meter-high mirror frame made of copper. The hall walls have been covered with bent varnished panels where the bent doors are also hidden. The floors are made of natural basalt and stained oak. The kitchen is separated from the dining room by an isolated island-shaped low wall completely made of stone (including the drawer fronts). The main wall in the living room is covered with large concrete slabs. A bio fireplace, situated in the recess, is finished with stone and surrounded with upholstered panels. The bathrooms have been finished with exclusive elements, combining various types of stone (limestone and basalt) and wood with glass elements. Only the two rooms intended for children have been finished in a different manner, with the emphasis on the individual character of these spaces, able to reflect children’s tastes.