Question juridique clé
Whether the first building permit had expired under Art. 118 LATC despite a later complementary permit procedure.
Solution extraite
The second application was materially a complementary permit request that could restart the expiry period; the first permit had not lapsed.
Motifs extraits
The cantonal court reasonably looked beyond the label used by the applicant and examined the substance of the later request. As the modifications concerned internal layout and use while leaving the building largely unchanged, and as demolition of the existing building was a necessary prerequisite for the complementary project, treating the later permit as a complement was neither arbitrary nor factually inaccurate.