Key legal question
Whether the cantonal judgment refusing demolition was arbitrary or disproportionate.
Extracted holding
The proportionality assessment was incomplete and arbitrary; the judgment had to be annulled and the case remitted for a new balancing of interests.
Extracted reasoning
The court held that the public interest in enforcing building permits and possibly traffic safety had not been properly assessed, and the private burden of compliance had likewise not been sufficiently reasoned; no good faith or legality recognition applied.