Suburban shopping centre Westfield is fighting Hamilton City Council plans to move to a capital rating system which would lift its rates by up to 270 per cent.
Westfield New Zealand director Justin Lynch said the proposed change was "inequitable and unjustifiable" and would triple the retail giant's for the Chartwell mall, from $241,594 to $891,663 a year.
The council is proposing to a capital value system because some central city properties are suffering under high land values.
A separate water and rubbish collection rate, based on capital value is also being considered.
"Rate increases must be fair and relate to the benefits and services received," Mr Lynch said. "Under the current proposal, the council is asking retailers to pay an extra $650,069 every year for no material change in services."