Acquisition and sale as well as management of properties, operation of general contractor services for the construction of turnkey buildings, in particular residential and commercial buildings, as well as execution of construction management, design, planning and construction organization tasks and construction contracts; may establish branches and subsidiaries, participate in other companies, acquire, encumber, sell and manage real estate, arrange financing for its own or third-party account, and provide guarantees and sureties for subsidiaries and third parties.