Planning, sale and construction of residential buildings, prefabricated houses, etc., provision of all services in the construction sector and construction of all types of buildings as a general contractor. May provide financing for its own account or for the account of third parties, enter into guarantees and sureties for subsidiaries and third parties, grant loans or advances to third parties, in particular to direct or indirect shareholders and affiliated companies, and guarantee the obligations of these third parties, in particular through pledges, transfers of ownership or assignments of security or in any other way. Is authorized to acquire, manage and dispose of participations in domestic and foreign companies and to manage its own assets. May establish branches and subsidiaries abroad and participate in other companies. Is authorized to acquire, encumber, sell and manage real estate in Switzerland and abroad. May, in addition, carry out all transactions that are suitable to promote the development of the company and the achievement of its purpose, in particular also acquire intellectual property rights, register trademarks, etc.