Question juridique clé
Whether the appellants still had a current legal interest in challenging the building permit for Sonnenhof II after the landowners withdrew consent.
Solution extraite
No current legal interest remained once the landowners expressly withdrew their consent; the authorities could therefore strike the appeal as moot.
Motifs extraits
Section 310(3) PBG serves to avoid pointless examination of projects that cannot be realized because the landowner opposes them and to prevent proceedings that would infringe third-party property rights. It was not arbitrary to require the consent to persist even on appeal and to deny standing when it had lapsed.