Planning, design and execution of buildings of all kinds as well as offering and providing services related to property acquisition and property sales, including property brokerage throughout Switzerland, including via the Internet; Activities as general contractor; Trade in goods of the construction industry; Acquisition, management, encumbrance and disposal of plots of land and securities; Activities as property manager; Offering services of all kinds in the field of construction; Participations; Taking up and granting loans; Providing guarantees and other securities; Acquisition, management and exploitation of intellectual property rights.