Foncière Solidaire du Grand Lyon is an association-based Organisme de Foncier Solidaire (OFS) created by the Métropole de Lyon to provide affordable homeownership through the Bail Réel Solidaire (BRS) model. Its mission centers on reducing housing costs by separating land ownership from building ownership, enabling low-income households to purchase homes at roughly half the market price—targeting 2780 euros per m² in central areas and 2230 euros per m² elsewhere—while paying a monthly ground rent of 1.5 to 2 euros per m².126
Key activities include acquiring and managing land, selecting eligible buyers based on income ceilings (aligned with prêt social location-accession limits), and partnering with operators like GrandLyon Habitat for construction and sales under a Bail Réel Opérateur. The organization started purchasing terrains in early 2020, supported by an initial 4 million euro fund from the Métropole de Lyon to enable borrowing.12 Founding members comprise the Métropole de Lyon, three public housing offices (Est Métropole Habitat, Grand Lyon Habitat, Lyon Métropole Habitat), Banque des Territoires, and Action Logement; additional members include interested communes, the Fédération des Professionnels de l’Immobilier, notaries, banks, landlords, and developers.13
Geographically, it operates locally within the Métropole de Lyon in the Auvergne-Rhône-Alpes region of France, contributing to affordable housing by perpetuating low-cost access across property resales. As one of 178 state-approved OFS nationwide in 2026, it addresses rising real estate prices through this sustainable, long-term model.35