Karana Downs flood map and flood risk
Karana Downs, Brisbane City Council · Queensland · based on 1,624 mapped addresses
Past floods reached parts of Karana Downs: 1974 Brisbane Bremer (about 22.4% of mapped addresses), 2011 QLD January (about 7.4% of mapped addresses) and 2022 Brisbane February (about 1.4% of mapped addresses). Queensland's broad floodplain overlay (QFAO) covers under 1% of addresses here, so the past-flood maps are the better guide. Brisbane City Council also maps its own flood planning areas, and the address check includes them. Other mapped hazards: 42% in a bushfire-prone area and 2.2% in a coastal erosion area. Every property differs, so check the exact address.
Karana Downs at a glance
Past floods in Karana Downs
- 1974 Brisbane Bremer - about 22.4% of mapped addresses
- 2011 QLD January - about 7.4% of mapped addresses
- 2022 Brisbane February - about 1.4% of mapped addresses
From the Queensland Flood Extent Series and Brisbane City Council's February 2022 mapping. A mapped extent shows where water reached in that event.
Hazards across Karana Downs
Share of mapped addresses in Karana Downs inside each government hazard layer. It describes the suburb, not any one property.
Flood map of Karana Downs
Check a property in Karana Downs
The free check shows every mapped hazard for one address: flood, past floods, bushfire, storm tide, coastal erosion and acid sulfate soils, and what each means for a buyer. The full report adds how much of the lot is affected, zoning and planning overlays, school catchments and nearby services, a checklist of what to ask, and a PDF to keep.
Before you buy in Karana Downs
- Ask Brisbane City Council for a flood search on the exact lot - it gives flood levels and the rules for building.
- Get written insurance quotes that include flood cover.
- Ask the seller whether the property has flooded, and check for flood damage at inspection.
Stay informed
Get notified when flood data updates for Karana Downs.
Nearby suburbs
Indicative only. Compiled from Queensland Government datasets (QFAO, Queensland Flood Extent Series, QSpatial), Brisbane City Council, ABS and G-NAF. Not property-level advice - verify with the council before any property decision. Last updated 2026-09-28.