Zsigmond Komperz, a rich merchant and banker commissioned architect Vilmos Freund to design a Neo-Renaissance-style palace in Budapest for his family. The reconstruction works of the building, which is today a listed building, were finished in 1881, a year before the opening of the Hungarian Royal Opera House in Sugár út (Road) (today known as Andrássy út (Avenue)). Today, the building is considered as a national and historic architectural monument.
On the ground floor of the Sugár út (Road) (today Andrássy út (Avenue)) building, Károly Seeman opened his coffee house, which was first called Szecesszió (the Secession) then later (1919) the Windsor. In the 1920s, the Anglo-Hungarian Bank and later the Opera Clothing Company operated in the building.
The palace regained its original function as a coffee house in the 2000s and, by now, it has become a real gem of Andrássy út, which is a part of the World Heritage. The café in its recent form was reborn in art-deco style in 2006 based on the designs of the world-famous architect, David Collins and his team. David Collins is famous for designing such noted places as the Gordon Ramsey and The Wolseley Restaurants in London, and some parts of the Ritz and the Hilton Hotels.
The 25 rooms of Callas House, which are situated on the 3rd and 4th floor of the building, were also reconstructed according to the plans of David Collins and his team in the course of the years 2016 and 2017. For the convenience of our guests, our rooms also represent the simple, elegant and fine characteristics of art deco style.