Facing the Parc de Bruxelles, in front of the Royal Palace of Brussels, and bordered by the Rue de la Loi and the Rue Ducale, the original plans for this corner building were drawn up in 1778 by B. Guimard and became reality three years later, after its purchase by Josse Massion, a distinguished architect and master builder. In the course of the 19th century, the building, first in the hands of a Duke of Windischgrätz, then the Prince of Orange, and finally the Blondel and Hendecourt families, which belonged to the upper classes, became the property of the Belgian State at the turn of the century, after several renovations. The main entrance of the house, which still contains details from the late 18th century, was moved to its present site after 1815, and the U-shaped form and size of the building was completed in 1870. The Belgian Ministry of Finance was also housed in this building. The Hungarian state bought the building in 2021. The complete renovation of the building was completed and opened as the House of Hungary in the summer of 2024.