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.
- Seine-et-Marne
- ECT Ile de France
October 2025, installation of fertile soil on the Vaux-le-Pénil site
Latest news

ECT Project Leaders : Transforming Regions in Practical Terms
Every ECT development project brings about lasting change to a site, benefiting the local communities and their residents. At the heart of this effort is the Development Department, where project
Read moreOpening of Val Saint-Germain Les Houdoux site (91)
Opening of a new ECT site in Essonne (91) Since February 23, 2026, the Val Saint-Germain – Les Houdoux site in Essonne has been open to inert soil deliveries. The
Read more
New hybrid bulldozer and 3D GPS
As part of its commitment to responsible innovation, ECT is expanding its range of public works equipment with the Caterpillar D6 XE hybrid GPS 3D bulldozer (exclusive distributor Bergerat Monnoyeur).
Read more