The plaintiff hotel owner sued the defendant condominium corporation for historical overpayments of shared electricity costs spanning 2006 to 2015.
The overpayments resulted from a conversion error in an Excel spreadsheet used to calculate the plaintiff's share.
The court found the defendant was unjustly enriched and ordered repayment of $730,058.99.
The court rejected the defendant's limitation period defence, finding the error was not reasonably discoverable until a consultant identified it in 2017.
The court also dismissed the defendant's claim for equitable set-off regarding alleged underpayments in other areas.