Logan City Council will consider implementing major changes to its flood mapping, planning policy and the Logan Flood Portal at a Special Council meeting next week.
Following decisions made in June, Council will consider a Temporary Local Planning Instrument (TLPI) to introduce updated flood mapping and planning controls and make improvements to the Logan Flood Portal.
Mayor Jon Raven said the proposed changes were informed by independent technical advice, community feedback and state government guidance, while continuing to support flood risk management, resilience and safety.
"We know residents feel strongly about this, and we thank everyone who's provided feedback," Mayor Raven said.
"We want the community to have access to clear and practical information, and the proposed changes respond to feedback while continuing to support a safe and resilient community."
Key improvements include:
- limiting flood hazard overlay mapping to the extent of the 1 in 100 annual chance (1% Annual Exceedance Probability or AEP) flood event and removing rare and extreme floods including the Probable Maximum Flood (PMF) from the flood overlay maps
- using clearer and more consistent flood risk terminology
- introducing a more practical approach in high flow areas (renamed to Flood planning area 1) to allow open structures, such as carports, subject to design requirements to ensure flood flow is not obstructed
- improving planning policy for dry creeks and gullies to recognise flooding may be frequent but shallow
- improving the Logan Flood Portal to make it easier to understand while still providing detail for industry and emergency planning purposes.
The proposed changes reflect Council's decision to limit flood overlay mapping on the 1 in 100 annual chance (1% AEP) flood event following community feedback, independent review and further investigation.
A TLPI is a process available under Queensland's planning framework that allows interim planning responses to be introduced before a formal planning scheme amendment can be completed.
"Once the proposed changes take effect it is expected the overall number of properties in the flood mapping overlay would reduce by 56.8 per cent," Mayor Raven said
"While a TLPI doesn't require formal consultation, we received more than 4,000 submissions on the draft Logan Plan in 2025 with the majority relating to flood mapping and planning policy.
"Feedback from that consultation has informed the preparation of the proposed TLPI."
If endorsed by Council next week, the TLPI will be submitted to the Queensland Government for approval. It would then return to a future Council meeting for adoption. Council expects the proposed change to take effect in early 2027.
Proposed changes to the Logan Flood Portal include a revised landing page focused on flood information up to the 1 in 100 annual chance (1% AEP) flood event, the removal of the Probable Maximum Flood (PMF) from the Portal and Property Flood Reports, as well as improved mobile functionality.
Information relating to more rare and extreme floods, up to the 1 in 2,000 annual chance flood (0.05% AEP) event, would remain available to support flood awareness, resilience, emergency planning and industry use.
The Special Council meeting on Tuesday, October 6 at 2pm is public and will be livestreamed and available to watch online on youtube.com/logancitycouncil
Councillors will consider technical advice, community feedback and legislative requirements when making decisions.
A dedicated webpage provides updates, timelines, FAQs and background information at: logan.qld.gov.au/Floodmaps. Residents can subscribe for email updates as new information is added.
