Key legal question
Whether the cantonal court arbitrarily found the planned works to be repair/transformation rather than reconstruction under Vaud construction law.
Extracted holding
The finding was not arbitrary; the remaining walls were usable and the works could be treated as repair or transformation within the existing volume.
Extracted reasoning
The court held that neither reconstruction nor transformation requires preservation of interior structures. It relied on local inspection findings and found the engineer's late report insufficient to overturn them.