Explore our photo gallery dedicated to the manufacture and installation of the fertile substrate for the future Parc du Sempin in Chelles. These images illustrate every stage of this innovative process, from the preparation of green waste compost and inert soil from the construction industry to their mixing and application on site. Find out how our teams transform these recycled materials into fertile soil, ready to be planted in the park.
Twenty-three fourth- and fifth-grade students from Louis Pergaud School in Plaisir (78) planted 400 young trees and shrubs, helping to reforest the future park. This nature awareness initiative allows students
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At the end of November 2025, the “Let’s plant for the Nature” initiative brought together 40 children from recreation centers and 20 young elected representatives from the Children’s Municipal Council
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These candid photos illustrate the steps involved in creating fertile soil at the Tertre des Roches site. This soil is made from silt sourced from construction sites, thereby avoiding the
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