The subject of this diploma thesis is an extension of a two-storey basement sports center in Jeseník nad Odrou. There is a relaxation area and a fitness area in the sports center. It is connected to the existing gym building with the tourist hostel by means of a connecting neck. There is a reception and a café for both facilities. The whole building is then covered with single-layer flat roofs. The main entrance to the building is located on the southeast side of the building at level 1.NP. Vertical constructions are made mainly of ceramic sys-tem elements Porotherm. Ceiling constructions are designed as prefabricated prestressed panels. The staircases are prefabricated reinforced concrete. The project was developed using the computer program AutoCAD.