As part of the redevelopment of the former Place des Panoramas/Panoramasplein, subsequently renamed Place du Congrès/Congresplein, architect Jean-Pierre Cluysenaar oversaw the construction of a mansion between 1850 and 1852, to plans by Joseph Poelaert. It matches another, identical building on the opposite side of the square designed to accommodate the Congress Column. The main façade with its 11 bays features a continuous balcony with a stone balustrade, resting on a series of ornate double corbels. This balcony serves as a dividing line between the ground floor with its blue-limestone rustication and the white-rendered upper floors. There are 11 French windows on the first floor, each of them topped by a curved pediment reminiscent of the Italian Renaissance, and 11 windows on the floor above that, adorned with crossettes and a keystone decorated with a garland, typical of the neoclassical style. The Embassy of the Principality of Liechtenstein occupies a large part of this building. (Listed 08/08/1988)