Planning, construction management, execution of construction services, construction trust, owner consulting and sale of construction services, financing, sale, brokerage of real estate, rental of real estate, brokerage of financing, as well as trade in real estate on a national and international basis, total entrepreneurship, general entrepreneurship and construction contracting, building materials trade; can also arrange financing for its own account or for third-party accounts, as well as provide guarantees and sureties for subsidiaries and third parties; can participate in other companies, acquire, encumber and dispose of real estate; can take out loans as well as grant loans to third parties and related parties, and also provide securities for the benefit of third parties and related parties.