Get approval to temporarily drain water into the City of Sydney’s stormwater system
Obtain or amend approval for pumping out rainwater from excavations at construction sites.
Project Status: When you need to do this
Use this form to obtain approval or to amend a previous approval for temporarily diverting water from excavations into our stormwater systems.
Dewatering of excavations refers to both dewatering and pump-out of rainwater from excavations and the discharge of water as a result of construction excavation.
What you need to do
Download and complete the form
Ensure that all fields on the form have been filled correctly before lodging the application. Fields on the form marked with an asterisk (*) are mandatory.
Prepare accompanying documents and drawings
These must be in digital form and comply with our digital requirements. Digital copies of applications must be supplied on a USB memory stick if lodging by mail or in person.
Lodge your application
- Email [email protected]
- Mail: City of Sydney, GPO Box 1591, Sydney NSW 2001
- DX: 1251 Sydney
- In person: customer service centres.
The application will only be accepted if the correct fee is paid. Refer to the public domain charges section: development sites – dewatering connection fees.
Before you start
Dewatering of excavations refers to both de-watering and pump-out of rainwater from excavations and the discharge of water as a result of construction excavation.
For permanent stormwater drainage connection applications please complete the application for stormwater drainage connection.
After you finish
Once your application is received, we may contact you for further information or clarification.
If you have any questions regarding this application, please contact the public domain team.
Public domain approvals
Public domain worksGet approval for works on public landA public domain plan assessment is required to obtain or amend consent for works that impact on civic spaces and assets.
Public domain worksGet approval for levels and gradients impacted by constructionObtain approval or amend a previous approval for levels and gradients, also known as determination of alignment levels.
Public domain worksGet approval for works on the public way under Section 138 of the Road Act 1993Obtain or amend approval for works like installation of street furniture, minor footpath and kerb works, and street verge and tree planting.
Public domain worksGet approval to connect to the City of Sydney’s stormwater systemConnect a private stormwater drain to public infrastructure.
Construction permits & approvalsGet approval to construct, repair or abolish a driveway to your propertyApproval is needed to connect your driveway to a road.
Public domain worksGet approval to install temporary ground anchorsObtain or amend approval to install ground anchors to support structures during construction or maintenance.
Public domain worksAppoint the City of Sydney as principal certifier and notify start of public domain subdivision worksAdvise that you intend to commence public domain subdivision works excluding building works and are appointing the City of Sydney as principal certifier.