Planning and realization of construction projects, execution of roofing, renovation and garden woodwork, scaffolding, building component protection, house clearances, work for the installation of solar photovoltaic systems, solar thermal systems, core drilling and all related business, as well as property maintenance, management of real estate, real estate trade and safe deposit box trade; can establish branches and subsidiaries, participate in other companies, grant licenses and franchises, enter into financing, guarantees and sureties for affiliated companies and third parties, and acquire, manage, broker and utilize assets.