Following the end of the First World War, the Walloon businessman Lucien Kaisin, in collaboration with the Swiss architect Michel Polak [fr], put forward plans for a complex of luxurious apartment blocks for the bourgeoisie and aristocracy; the Résidence Palace, to be situated on the edge of Brussels' Leopold Quarter. Consisting of five "Blocs" (A–E), it was to be "a small town within a city" able to provide its residents with onsite facilities, including a theatre hall, a swimming pool, as well as other commercial services such as a restaurants and hairdressers.[3] The Résidence Palace aimed to address the dual shortage of suitable property and domestic workers for the upper classes following the destruction brought about during the war.