LIFE Waste2Build - EN

Toulouse Métropole is developing the circular economy in the metropolitan area. The aim is to optimise resources and recover waste from the building and public works sector on a local and regional scale.


In September 2021, Toulouse Métropole launched the successful LIFE Waste2Build project, submitted in response to a call for proposals of the EU’s Life programme. The aim is to build a sustainable economy to meet the social, economic, and environmental challenges of today and tomorrow.


The project follows the experimental deconstruction of the Toulouse Exhibition Centre.

Life Waste2Build relies on public procurement (public works contracts) to develop the use of second life materials in construction, renovation or landscaping. The first step is to list the available materials and then classify them according to their possible reuses.

Life Waste 2 Build - Toulouse Métropole develops the Circular Economy in construction

Life Waste 2 Build - Toulouse Métropole develops the Circular Economy in construction

Life Waste 2 Build - Toulouse Métropole develops the Circular Economy in construction


The project has 4 specifics objectives : 


  • Reduce by 20% the impact of construction on resource consumption and waste production 
  • Structure the circular construction sector 
  • Implement more circular purchasing policies  
  • Support skill development in the circular construction sector

Expected results :

  • 85% of waste recycled in the Toulouse metropolitan area
  • 80% of public procurement contracts in the metropolitan area include a circular economy criterion
  • 60% of companies responding to public contracts are aware of these issues
  • 360 FTEs/year created from 2026
  • 30% reduction in greenhouse gases
  • 35% reduction in waste
  • 13% annual increase of construction companies involved


September 2021 to February 2026.


Total project budget : 2 757 841€

with 55% European co-financing (grant of 1 516 812 €).


The project is coordinated by Toulouse Métropole with 6 beneficiary partners :

Synéthic, the scientific and technical building centre (Centre Scientifique et Technique du Bâtiment), Envirobat Occitanie, Toulouse Business School, French Federation of Building and Public Works of Haute-Garonne (Fédération Française du Bâtiment et des Travaux publics de Haute-Garonne) and the National Institute of Circular Economy (Institut National de l’Économie Circulaire).

Several stakeholders are involed :

DREAL, ADEME, Fédération Régionale des Travaux Publics d'Occitanie, Observatoire des déchets et de l'Economie Circulaire en Occitanie, Conseil Régional de l'Ordre des Architectes, Association Ingénierie Occitanie Midi-Pyrénées, Oppidea, Bellastock, Fédération des Entreprises du Recyclage, Université Toulouse Jean Jaures, Ecole Nationale Supérieure d'Architecture de Toulouse, Relais 2D (Strasbourg), Plaine Commune - Grand Paris, CPAM 31, Landeshauptstadt Düsseldorf, Ville de Saragosse, Ville de Seville, Ville de Barcelone, Institut National Slovène d'Ingénierie Civile – ZAG, Ville d'Oslo

Exemplary worksites

Feedback on the pilot demolition site

Toulouse, déconstruction de l’ancien Parc des Expositions

Toulouse, déconstruction de l’ancien Parc des Expositions

Demolitions, renovations, development operations and construction

An ambition to develop the circular economy between exemplary sites by developing and multiplying the loops of resources (materials and equipment) and relying on the tools of the project (digital platform, physical platforms, training...). 

These projects have two operational objectives : 

  • 85 % overall waste recovery (measured in tons) compared to the the legal obligation of 70 %
  • and 5 % use of second-hand materials (as measured by the financial value of the supplies). 

Consult the list of 58 construction sites : Life Waste2Build - Envirobat Oc ( 

Propose a site 

Available Evaluations of the Completed Projects