Kernrechtsfrage
Whether the cantonal court arbitrarily assessed the evidence on the completion date of the works.
Extrahierter Entscheid
Yes. The court failed to consider the contractor's own pleadings and documents indicating completion on 6 November 2002, although that date could be decisive for the defect-notice issue.
Extrahierte Begründung
The cantonal court overlooked relevant admissions and documents. It had to assess their significance before fixing the completion date; omitting this was manifestly unsustainable.