After World War II the halls for most of the craft unions had been built up by the new regime on Dózsa György Street at the Városliget. The National Union of Hungarian Builders (MÉMOSZ) was given a new building, which was designed by four architects: Lajos Gádoros, Imre Perényi, Gábor Preisich and György Szrogh. The building became an exceptional representation of the modern architectural style, which bloomed only for a few years after the war. The house is imposing and facile, playful and serious at the same time. Around the millennium, the building got a new owner; the renewal and partial modification was designed by the Dutch architect Erick van Egeraat. Meanwhile, the house was listed as a protected building; so the overall appearance had been preserved, but the curtain wall of the facade had been changed for a transparent and more economical one. There are some playful elements with srong contemporary character: the curling walkway under the arcades or the waving row of boards in the garden path, for example. Unfortunately, the renewal of the 250-person congress hall has been postponed.