This diploma thesis deals with design of office building with warehouse. The buildings are situated on slightly sloping terrain in cadastre unit of Sudoměřice u Tábora. Both buildings have rectangular shape and are connected with two sides. The Alemat s.r.o. company is internet shop, predominately with electronics. In the office building is also showroom where are some products will be shown. The warehouse will serve for receipt and issue of goods and to store them. The perimeter walls of office building is designed from ceramic block thickness of 250mm, for example Heluz Family 25. The walls will be insulated with 200mm of expanded polystyrene. The foundation construction is designed as foundation strips from plain concrete and permanent formwork brick filled with concrete and reinforced with steel. The ceiling construction is designed as prestressed panels thickness of 250mm. The roof is flat with main hydro isolation made of plasticized PVC foil loaded with pea gravel. The main construction of warehouse will be made of steel frames. The exterior skin of the warehouse will form panels Kingspan thickness of 140mm. The foundation construction is designed as monolithic foundation pads. Between the pads will be monolith grade beams. The roof is designed also from Kingspan panels. To the panel will be mechanically fastened plasticized PVC foil. Roof drainage is designed to rain gutters.