If you feel your property’s rating value doesn’t reflect your property’s market value (as at the date of your council's last rating valuation), you have the right to object. The closing date to lodge an objection to your new rating value is outlined on your owner's notice. It is approximately six weeks from when the new values are released.
Objections are part of the valuation process because they give property valuers the opportunity to assess individual factors that they may not have been aware of so have not been considered as part of the value assessment e.g. you may have put in a new kitchen.
A council revaluation is completed every three years. Outside of this period you may have made changes to your property, which didn't require a consent, that might affect your rating value. If this is the case, you may be able to request an Urgent Rating Value Review.