400 visitors took part in the escape game at ECT’s Villeneuve-sous-Dammartin site (77)

Sunday September 24 – For the first time, Villeneuve-sous-Dammartin, Ile-de-France’s largest excavated soil reclamation site, opened its doors to the general public. In glorious sunshine, 402 adventurers took part in our escape game. A look back at a fun, educational and enthusiastic day. 

Escape Game - Site de Villeneuve- Enigme Terres, terres

An invitation to discover the reuse of excavated soil

The general public was able to discover the Villeneuve-sous-Dammartin site and gain a new perspective on its future.

An escape game was organized to reveal all the facets of the site: from the transformation of excavated soil to its contribution to biodiversity and local activity.

Were they going to see it all?

With the help of their adventure logs, players followed the cycle of the soil, its use by machinery, and its reuse to create natural environments or farmland.

A 3-kilometre loop, a trail of 5 riddles

Escape Game - Site de Villeneuve- Accueil
Escape Game - Site de Villeneuve- Enigme à la recherche des êtres vivants
Escape Game - Site de Villeneuve- Enigme engins de chantier
Escape Game - Site de Villeneuve- Enigme Terres, terres
The earth cycle in 4 stages
  • Let’s plant! : Reusing excavated soil for landscaping means restoring fertility. And create new natural spaces such as woods, wetlands and meadows, as well as crops with orchards and agricultural fields.
  • In search of living creatures: Part of the site has been renatured. Many living creatures have found favorable habitats here. They make their home here, as do the protected species of Tawny Owl and the Little Egret.
  • Machines and jobs: Dozens of site machine operators work on the site. These public works machines are essential for earth reception, earthworks and site development.
  • Lands! Terres! The excavated soil that arrives on site reflects the geology of the Ile-de-France region. The game was about discovering these noble materials, traced and controlled from their original construction site to the ECT site.

Final Riddle: “The Eye of Heaven

The ECT site is still in operation, but a monumental work of art has already seen the light of day! The highlight of the visit is the discovery of “L’Œil du Ciel”, a 400-metre-long work of land art designed by architect and artist Antoine Grumbach and to be built by ECT in 2023. This exceptional project is on a par with the development of the largest site for the reuse of excavated soil in the Paris region. Now visible to Roissy CDG passengers, “L’Œil du Ciel” will eventually become a park open to the public, surrounded by fields.

Escape Game - Villeneuve - Oeil Artefact

Testimonials and smiles

Relive the adventure

See photos of the Escape Game

Latest news

Zone déchargement des terres à Coubert
23/09/2025

Coubert agricultural rehabilitation project underway

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.

Read more
Gourde ECT au canada
23/09/2025

The Adventures of the ECT Water Bottle – Summer 2025

This summer, the ECT water bottle packed its backpack and set off on a unique trip around the world. From the scorching deserts of Death Valley to the salty beaches

Read more
ECT Sofiane Chikh crédit ECT
11/09/2025

[Appointments] Sofiane Chikh, Director of Development and Planning

ECT is strengthening the development of its projects in the Paris region and elsewhere in France with the arrival of Sofiane Chikh as Director of Development and Planning.  As the

Read more

Pour recevoir
les dernières actualités d'ECT