Purchase and sale, brokerage, management, leasing, rental, development and renovation of properties and plots of land in Switzerland and abroad. The company can perform all other activities related to this, in particular architectural planning, civil engineering and construction work, as well as trade in building materials of all kinds; it can act as a general contractor, establish branches and subsidiaries in Switzerland and abroad, participate in other companies in Switzerland and abroad, arrange financing for its own account or for third-party account, and provide guarantees and sureties for subsidiaries and third parties.