Key legal question
Whether the planned works required LDTR authorization because the hotel use had been lost and the building had become residential property.
Extracted holding
The cantonal courts could find without arbitrariness that the hotel purpose had been abandoned and that the building was now residential, so the LDTR applied.
Extracted reasoning
The long-term occupation by the Hospice général, later leases to private tenants, absence of contemporaneous proof of a temporary hotel-to-housing change, and the lack of hotel services supported the finding of a residential use.