Laprade returned to France in 1920.[1] That year he rebuilt the Château de Gerbéviller, which had been damaged by bombing, for Charles de Lambertye-Gerbéviller.[9] Laprade created the Jardins des Nympheas and Jardins des Oiseaux for the 1925 International Exposition of Modern Industrial and Decorative Arts in Paris.[10] In an interview he said that he had a love of flowers embedded in architecture, whether it was brick, stone or even concrete.[11] His Art Deco parterres were laid out in geometrical patterns, with monochromatic masses of plants and alternating beds of flowers in pastel colors.[12] In 1925 he formed a partnership with Léon Bazin that lasted until 1936.[1] Laprade was a founding member of the Society of Modern Artists (1925) and of the International Union of Architects.[13]