Kernrechtsfrage
Whether the cantonal court violated the right to be heard and established the facts incompletely by not obtaining the full 1993 permit file, including the WEG approval and plans.
Extrahierter Entscheid
Yes. The court had to consult the complete 1993 approval documents because they were decisive for the assessment of the prior legal status.
Extrahierte Begründung
The 1993 building permit itself referred to a 90% residential use and indicated that a separate WEG approval was required. The lower court relied on an incomplete record and did not examine the relevant WEG approval and plans. The appellant had already requested production of those documents below, so presenting them in the federal proceedings was not an inadmissible new matter.