Lombardia currently separates public-owner social-housing investment channels from private social-purpose operators. Linea 3 of the 2026 Housing Sociale call is open to 30 October and funds qualifying private entities renovating property held for 20 years; see it-lombardia-housing-sociale-linea-3. The regional portal also describes other 2026 lines involving public and private operators, so Linea 3 eligibility must not be generalized to those calls. Applicants are project operators/property controllers; residents are target tenants. Household first-home/ERP entitlements are separate resident-level routes.
Source check (5 October 2026): The official 2026 housing-sociale portal names separate lines and directs operators to criteria; Linea 3 platform lists eligible private social entities and the project cap.