The investment involved a thorough modernization of the Europejski Hotel, resulting in 100 luxury rooms and boutiques for top global brands. The existing roof was removed to add two office floors, characterized by a light steel beam construction. The basement now houses a spacious spa covering 2,000 square meters. During the renovation, decorative moldings hidden under suspended ceilings in the corridors were uncovered. These valuable elements have been restored, and the entire process was supervised by a conservation officer.