Sofitel Grand Sopot was constructed during an era marked by global industrialization following World War I and before World War II.

Built at the cost of more than $3.5 million, the Sofitel Grand Sopot originally debuted as the “Kasino Hotel” during the 1920s. Designed by Otto Kloeppel, the hotel’s magnificent Art Deco architecture and thrilling casino quickly attracted the elite throughout Europe. The hotel specifically became a popular destination for millionaires from across the continent who came to gamble. Many historical stories persist that most of these entrepreneurs and aristocrats lost their fortunes at the hotel. One such tale involves the town’s mayor, Dr. Eric Laue, who actually helped to finance the Kasino Hotel. This well-known local politician promoted the development of Sopot’s historic buildings and landmarks, including the Sopot Pier, the Forest Opera, and the city’s Resort House.

Despite the obstacles presented by World War II, the hotel managed to survive. The building reopened shortly following the war with a new name—Grand Hotel. It passed through several owners including the Gdynia-America Shipping Company, the Polish Ocean Lines Group, and finally the state-owned hotel operator Orbis. The hotel continued to welcome international guests and was a choice hotel for politicians during the Cold War. With the start of the Sopot Music Festival in the 1960s, the hotel became well known by international stars who performed at the festival. Once again, the Grand Hotel assumed its place as one of the notable holiday destinations in all of Poland. A new casino was subsequently created in 1990, and the hotel was acquired by the AccorHotels Group. The hotel was closed and completely modernized after the acquisition, re-opening as the Sofitel Grand Sopot in 2006.