Key legal question
Whether the appeal was admissible, including the municipality's standing based on autonomy.
Extracted holding
The appeal was admissible. X. had standing as the permit holder, and the municipality could invoke municipal autonomy in applying the building-aesthetics rule.
Extracted reasoning
The decision affected the builder directly. The municipality acted within its sovereign powers and could rely on constitutionally protected autonomy in the exercise of § 238 PBG.