It said property revaluations take place every three years to reflect changing market values and were independently audited by the Office of the Valuer-General. The last revaluation took place in 2018.
The new revaluations will be used to calculate rates for the next three years, starting on July 1.
"The Officer of the Auditor-General is stepping through the audit process with council's valuers before releasing the audited valuations"
Updated notices were expected to be sent out to property owners from mid-January 2022.
Early figures showed residential value increases of up to 60 per cent, Opteon regional director Avella Collopy said last month.
In residential property, capital value increases of 40-60 per cent were observed at the lower end of the market, with mid-value properties up 30-40 per cent.
But at the top end of the market, value increases were in the 20-30 per cent range, with the exception of Matua, Mount Maunganui and Pāpāmoa, which were up 40-60 per cent.