The Aerotropolis is a once-in-a-generation opportunity to create a thriving, sustainable city. As Regional Stormwater Authority, we’re committed to supporting the delivery of regional stormwater infrastructure to service the Aerotropolis.
The public exhibition period for the Aerotropolis Draft Integrated Stormwater Scheme Plan for Duncans Mulgoa closed in September 2025. The scheme plan we presented for exhibition showed the proposed regional stormwater infrastructure required to service this area within the Aerotropolis.
Thank you to everyone who participated and provided feedback - we appreciate you taking the time to share your views. You can view the Duncans Mulgoa Consultation outcomes report here or visit the Duncans Mulgoa page on the right.
Our team is currently reviewing feedback received on the draft stormwater scheme plans for Wianamatta Badgerys, Cosgroves, and Duncans Mulgoa. As part of this process, we are assessing opportunities to refine infrastructure size and locations where possible, while ensuring technical, environmental and regulatory requirements are met.
We appreciate the time taken to provide feedback on the draft schemes. To allow for thorough consideration of all options, the stormwater scheme plans are now expected to be finalised in early 2026. Once complete, the final schemes will be published on our website and reflected in the project’s interactive map.
We've developed a summary document that explains the different elements of the Aerotropolis Draft Integrated Stormwater Scheme for Duncans Mulgoa.
If you'd like to know more about our plans and what they might mean for you, this is a great place to start.
You can see the proposed infrastructure, right down to a property level, on the interactive map.
We've developed explanations for the different types of stormwater infrastructure included in the scheme plans. You can learn more about each of these and how they work.
Have questions or want to learn more about the project, contact us below:
| Name | Sydney Water |
|---|---|
| Phone | 1800 645 466 (business hours) |
| aerostormwater@sydneywater.com.au | |
| Website | www.sydneywater.com.au |
