1928
The apartment building was constructed between 1928 and 1934 on the Oude Schiekade as part of the Ungerplein complex. Upon completion, it was likely the tallest residential tower in Europe, standing at 43 meters. It was located alongside the Rotterdam Schie, a canal between Overschie and Rotterdam that was built between 1343 and 1348 along existing waterways. To finance the construction of the tower by contractors Van Vliet and Van Dulst, the First Rotterdam Flat Construction Company (1e Rotterdamse Flatbouwmaatschappij NV) was established.
The building was designed by Jo van den Broek in collaboration with Henrich Leppla, following the principles of Nieuwe Bouwen (Dutch Functionalism). Key features of this style include functionality and a lack of ornamentation, with a focus on pure geometric forms. Transparency, space, light, and air were achieved through the use of modern materials and construction methods. The building was erected with a concrete skeleton, allowing the facade to be fully utilized for the building's design.
Originally, the building was developed as a luxury residential complex. Each floor contained two large apartments with five to six rooms, as well as a room for a maid. The top floor housed a penthouse. Notable features of the apartments included sliding walls, built-in closets, and transom windows.