This luxurious functionalist-style villa is located in the Ořechovka district and was built for the businessman František Müller between 1928 and 1932. Designed by two architects, Karel Lhota and above all the famous Adolf Loos, the villa was very modern and particularly original in its day. While the exterior is sober and simple, the interior combines aesthetics and functionality; it is opulent and overflowing with luxury materials. Here, Adolf Loos applies his "Raumplan" theory, in which the rooms of the house intersect at different heights, without the overall volume being divided into floors as such. But this division is not the result of chance: it is determined by the function and purpose of each room, as well as their mutual relationships. This original approach follows the main principles of functionalism in the strict sense of the term, to which Loos aspired. This is why the villa is today a masterpiece of avant-garde architecture from the first half of the 20th century.
During construction of the villa, Müller and Loos had to contend with certain obstacles posed by the Prague Building Permits Office. Later, the Communist regime requisitioned the building, leaving the Müller family only two rooms to occupy. After 1989, the villa was purchased from the heirs by the City of Prague, who carried out a major renovation based on period photographs. Today, it belongs to the Prague City Museum and is open to the public.