Kernrechtsfrage
Whether the cantonal court arbitrarily found that the renovation work was completed on 1 September 1999.
Extrahierter Entscheid
No arbitrariness was shown; the completion finding was supportable on the evidence.
Extrahierte Begründung
The allegedly contrary document was new and therefore inadmissible; the remaining evidence, including the payment schedule and witness statements, supported completion of the interior works by 1 September 1999.