Key legal question
Whether the planned agricultural building was necessary for the farm under Art. 34 para. 4 let. a OAT
Extracted holding
The Federal Court held that the project did not clearly satisfy the necessity requirement, but it did not need to decide this point definitively because the permit failed on the location criterion.
Extracted reasoning
The chosen site would prevent reasonable future expansion and the barn would not house the whole herd; objective need must be assessed against the farm's structure and requirements.