There are different performance requirements included in Schedule 4
of the NDC for different development scenarios:
- Large brownfield and greenfield developments will require a Stormwater Management Plan
- Small brownfield developments will not require a Stormwater Management Plan if their proposed stormwater management is consistent with Schedule 4.
- NZTA/AT/Railways projects which connect into the public network have specific requirements.
- Healthy waters projects including Auckland Council network renewal, maintenance and upgrade works which generally do not create impervious area.
A Stormwater Management Plan must meet all Schedule 4 requirements and be consistent with Schedule 2 to be adopted.