Planning, design and execution of new and renovation projects, renovations, takeover of construction management tasks, construction and project management mandates and takeover of other services in the construction industry; exercise of fiduciary activities for the construction industry, in particular organization, planning, implementation and administration of new buildings and overall developments; provision of services in the area of property management, building services and craft work; consulting and fiduciary activities of all kinds; participations; acquisition, encumbrance, sale and management of real estate; financing and provision of guarantees and sureties for subsidiaries and third parties.