Kernrechtsfrage
Whether the cantonal court's factual findings on the architect's mandate and diligence were arbitrary
Extrahierter Entscheid
The challenged findings were not arbitrary; the cantonal court's account of the mandate, the access scheme, and the timing of events was supportable.
Extrahierte Begründung
The court held that the appellants were in substance attacking the legal assessment of the facts, not showing any manifestly untenable factual finding. The omitted details were either not decisive or were reflected elsewhere in the record.