Question juridique clé
Whether the public-law appeal was admissible against the building permit, especially regarding the site-plan rules and alleged arbitrariness.
Solution extraite
The complaint was inadmissible insofar as it relied on rules protecting only the public interest, not the neighbours' legally protected interests.
Motifs extraits
Under Art. 88 OJ, neighbours may invoke only norms protecting them at least incidentally; site-plan and heritage-protection rules are public-interest norms, so the challenge to their application cannot found standing.