Construction, renovation and refurbishment of buildings, preparation of real estate appraisals and valuations, as well as trade in goods of all kinds, in particular building materials. May acquire, hold, manage, broker and sell properties, provide services in the field of burglary protection for buildings and in the field of marketing and advertising, establish branches in Switzerland and abroad, participate in other companies in Switzerland and abroad, and conduct all business that is suitable to promote the purpose of the company, furthermore acquire, hold, manage and sell securities, copyrights, patents and licenses of all kinds.