Stormwater drainage
Stormwater runoff from any subdivision and/or individual site must be directed to a lawful discharge point. There must be:
- no net increase in peak flows of stormwater runoff from any site during weather events from Q2 to Q100 storm rating
- no adverse impact external to the site either from redirection, concentration and/or increase in flood levels.
Our City Plan Land Development Guidelines and the Queensland Urban Drainage Manual provide information for engineers and stormwater designers to help with the planning, design and management of urban stormwater drainage systems.
Building sites
Stormwater runoff from building sites must also be collected and directed to a lawful discharge point. For stormwater associated with building work, please refer to the Building Code of Australia. For stormwater associated with City of Gold Coast services, please refer to our Land Development Guidelines.
When connecting private stormwater drainage, ensure the discharge is directed to a lawful point such as the kerb and channel, or an inter-allotment stormwater system. Where connecting to a lawful point of discharge is not feasible, the private stormwater drainage may instead be connected to a rubble pit, provided the pit is designed and constructed by a suitably qualified and competent professional.
Note: Where the catchment drainage is less than 500 square metres, you may connect to an existing stormwater pit or inter-allotment drain.
The design of the proposed drainage system for the building must:
- not adversely affect the upstream drainage
- ensure the downstream drainage system is capable of adequately catering for the discharge of the additional flow produced as a result of the building or structure.
Report stormwater drainage issues
To report drainage issues on public land, visit Report a problem – Roads and footpaths.
If the issue is urgent and presents a risk to public safety, please contact us on 07 5667 5974 as soon as possible.
To report private properties that are affected by stormwater run-off from a neighbouring property visit Report a problem – Development Compliance.
More information
Contact us on 07 5667 5978 or via email: mail@goldcoast.qld.gov.au.