The Resource Management Act (RMA) statutory time limit for a non-notified (without a hearing) resource consent is 20 working days. 

If the Council requests further information under s92 of the RMA, the consent is placed on hold until the response is submitted back to Council.  This period is excluded from the 20 working days.

If the consent is complex, Council may double the processing timeframes under s37 of the RMA.

Generally we would suggest allowing 2-3 months for approval depending on the complexity of the application.

If the application is notified due to potential effects on neighbours, the processing timeframes are likely to be between 6-12 months.