The “Platschek-House” is an Art Nouveau residential building located at Aradi utca 57 in the 6th district of Budapest. It was designed by the Löffler brothers, Béla and Sándor, and built in 1908 for Vilmos Platschek, the wealthy owner of a garment factory employing 250 people, with a store on Károly körút where the clothing they produced was sold.

This house is one of the first that the Löffler brothers designed together. They were responsible for numerous apartment houses in Budapest, including the completion of the Kazinczy Street Synagogue in 1913.

A distinctive feature of this particular building is the peacock motifs, which can be found on the railings, the main door, and floor, as well as on an etched glass window.