Flood maps updated for 17,246 Brisbane properties

Brisbane City Council updated its flood mapping in 2025, affecting 17,246 properties. The update covers creek and waterway flooding. It does not cover Brisbane River flooding or overland flow.

What changed

The council announced the update on 12 August 2025. Of the affected properties, 10,129 were added to the flood overlay and 400 were removed, and many others have changed flood risk extents. The new mapping is based on studies of the Breakfast Creek, Jindalee and Lota Creek catchments, and was to be incorporated into Brisbane City Plan's flood overlay on 19 September. For many properties the updated risk is as low as a 1-in-2000-year event.

Who was told

Affected property owners were to receive letters explaining the update and where to find more information.

Why it matters on the river

Because the update doesn't include the river, owners near the Brisbane River can't read their river flood risk from it. The council said updated, transparent flood information helps residents prepare, respond and recover, and that insurers should not use the change to unfairly raise premiums. Councillor Tracy Davis said the council had used the latest peer-reviewed data.

Check Brisbane City Council's flood information for your property.

Sources: Inside Local Government, August 2025