Key legal question
Whether the municipality had standing to appeal the departmental decision.
Extracted holding
No. The municipality was not a party to the first-instance building proceedings, had no own affected interest, and could not rely on the rights of third parties or on the general interest in correct application of the law.
Extracted reasoning
In building matters the building commission, not the municipality, is the competent authority; the municipality was neither addressee nor specially affected and had no autonomous, legally protected interest. The framework also excluded a municipal appeal path after the building authority's decision.