Question juridique clé
Whether the earth embankment in the quarry area was subject to a building permit under planning law.
Solution extraite
Yes. Given its size, proximity to the neighboring parcel, expected duration, and stability/safety concerns, the embankment was a permit-requiring structure or installation.
Motifs extraits
Art. 22 RPG applies directly; the embankment had significant spatial effects and required prior review. Quarry-zone authorization did not cover an embankment of this extent and duration, and the fact that it served quarry operations or neighbor protection did not remove the permit requirement.