Les Halles en Commun (La Courrouze) is an urban regeneration project in Rennes, France, focused on transforming a former industrial site into a mixed-use neighbourhood combining economic activity, housing and cultural uses. Located on the ex-Euroshelter site in the La Courrouze district, the project centres on four large industrial halls of around 2,200 m² each, built in 1916 and characteristic of early 20th‑century industrial architecture (metal frame, tiled roofs, brick infill walls). These halls form part of approximately 11,500 m² of heritage buildings to be rehabilitated.
The project is led by Territoires Rennes (the local public development company) in partnership with Rennes Métropole and the French State, with technical and financial support from the Banque des Territoires under the national “France 2030 – Demonstrators of the sustainable city” programme. A funding convention signed on 25 November 2022 marked a key milestone, confirming an incubation support of €500,000 over 24 to 36 months and the possibility of up to €10 million in additional aid in the realisation phase.
Les Halles en Commun is designed as a site that combines transition ecology, sustainable development and transitional urbanism. At full build-out, the project will cover about 24,000 m², including 10,000 m² of activity spaces and 190 dwellings, intended to house around 350 residents. The temporary occupation phase began with the installation of 17 actors from the circular, social and solidarity economy and the cultural sector, using the large volumes and relatively low envisaged rents to host activities usually relegated to peripheral business zones. This transitional programming is used to prefigure a future collaborative entrepreneurship hub in the largest hall, ES10, and to guide the long‑term transformation of the site into a new urban living environment.