Development, realization and utilization of real estate and construction projects of all kinds; management, rental and brokerage of properties as well as services of all kinds in the areas of trust, planning and execution of new and renovation projects, in particular as total or general contractor on behalf of third parties; project management; consulting and support in matters of development, environmental and financing issues as well as trade in building materials of all kinds; participations; acquisition, encumbrance, sale and management of real estate; financing and provision of guarantees and sureties for subsidiaries and third parties.