The Nádasdy Castle in Nádasdladány was renewed within the framework of the National Castle Program. The architectural design tasks of the monumental reconstruction work were performed by the general designer TSPC Kft.  and its partner, the architect designer Lajos Ónodi Szabó from the Bicske Építő Kft.

During the development for cultural and tourism purposes, the specialists also performed conservation and technical tasks. In addition to the substantial aesthetic renovation the complex reconstruction of the Nádasdy Castle with technical solutions also facilitates the addition of cultural and touristic functions to the historical building. The most special space of the building, Ősök Csarnoka (Hall of the Ancients) and the majority of the furniture of the connecting rooms have been restored to their original condition.