Question juridique clé
Whether the transformation of building no. 178 qualified under Art. 80 LATC or amounted to a reconstruction requiring stricter treatment.
Solution extraite
The cantonal court could reasonably treat the works as a transformation within the existing volume, not a reconstruction.
Motifs extraits
The Federal Court found no arbitrary assessment in the view that two levels remained, essential parts were preserved, and the load-bearing structure was kept; the appellants failed to show manifestly incorrect fact-finding or an insupportable interpretation of Art. 80 LATC.