ECT works in a ‘circular economy’ of upcycling excavated soil from construction sites and public works.

Our work is based on two areas of expertise :

. Our Environment division identifies the treatment pathways for inert soil and polluted soil. It arranges the traceability of materials going to sites for re-use, recycling and treatment, and it classifies spoil.

. Our Development division works with communities and local authorities to find land-use development sites where inert and non-polluted spoil can be re-used. 

Our development projects help promote biodiversity and life. They take various forms: Country parks, replanting woodland, noise-protection bunds, solar energy parks, made-ground for agricultural uses, urban farms, golf courses, and sports and leisure areas and facilities.



The Fosse-Maussoin Departmental Park in Clichy-sous-Bois (93) is a park open to the public who take advantage of this landscaped wooded area. In a very dense urban area, it extends over 14 hectares and represents a very beautiful natural space in the city. In January 2021, the department of Seine-Saint-Denis officially inaugurated the park's first expansion.


June 2023 drone flight over L'Oeil du Ciel credit Timelapse and Go.
L'Oeil du Ciel is a land art work by Antoine Grumbach created by ECT at its Villeneuve-sous-Dammartin site in Seine-et-Marne, under the runways of Roissy-Charles-de-Gaulle airport.