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 in the presence of the Mayor of Chelles. This environmental awareness initiative is part of the development of the future Jacques Chirac Park, carried out by ECT in partnership with Safer Île-de-France, the City of Chelles, and the Paris-Vallée de la Marne Urban Community.

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 need to import topsoil. Discover how our teams are laying this fertile layer to prepare for the planting of this natural space.

Discover the progress of the Coubert project in Seine-et-Marne. The gallery shows the key stages: reception of inert soil from local construction sites, quality control and implementation by field teams.

On May 24, 2025, at the end of the Course de l’Espoir organized as part of the “La Main au Chapeau” festival, Buchelay residents were invited by Mayor Stéphane Tremblay to inaugurate the new park built and financed by ECT using inert soil from the local construction industry. Despite mixed weather conditions, this warm moment was extended over a glass of friendship, shared in the heart of the park. Take a look at some of the highlights of the day’s events.

Spectacular limestone models! Immerse yourself in the heart of the future Jacques Chirac Park in Chelles through our photo gallery. Over 6 hectares, ECT teams have created an ecological environment inspired by the region’s ancient quarries. These reliefs will be home to dry grasslands, which have become rare in the Île-de-France region, providing a haven for specific biodiversity.

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.