Planning and execution of renovation and restoration work, in particular painting, plastering, roofing and carpentry work, planning and execution of new wood construction projects, acquisition, management and brokerage of and trade in real estate. May establish branches and subsidiaries in Switzerland and abroad, participate in other companies in Switzerland and abroad, acquire or merge with similar or related companies, acquire, manage and sell properties, and enter into all transactions and conclude contracts that are suitable to promote the purpose of the company or are directly or indirectly related to it.