Property › Owners › Gecina SA Gecina SAWhat Gecina SA holds among the buildings this research has examined. REIT1 building1 city This is what the research found, not a portfolio: it counts only the buildings on the cities examined so far, and only where a document names the owner. 01Paris, France 3 place de l'Opéra3 place de l'Opéra, 75002 Paris (2e) Office —A