all real estate transactions, on its own account and on behalf of third parties, in particular: the purchase, sale, brokerage, construction, rental, management and administration of all real estate; the provision of all services in the real estate sector, in particular promotion, management, brokerage, piloting and expertise; advice on the development and financing of all real estate transactions; the purchase, sale and exploitation of all licenses, processes and patents in the field of construction; the study, realization, financing, provision of advice and assistance in the field of public works; the acquisition, management and administration of real estate companies.