Flood Risk in South Brisbane, QLD: 2026 Assessment

South Brisbane, located in Queensland, has a notable flood risk profile based on available data including proximity to waterways, elevation, and historical flood events. The Bureau of Meteorology (BOM) maintains river height and flood warning data for catchments across Queensland.

Historical flood events have impacted South Brisbane, particularly areas close to the river. The Brisbane City Council maintains flood maps and provides guidance on flood preparedness.

South Brisbane is susceptible to flooding due to its proximity to the Brisbane River. Riverine flooding can occur during periods of heavy rainfall.

For a comprehensive property-specific flood assessment including address-level elevation data, flood overlay mapping, and insurance cost estimates, use the ClimateNest full analysis tool. General suburb data cannot replace a site-specific evaluation.

South Brisbane sits within ClimateNest's suburb-level hazard model for flood risk. 11.3% of the suburb's land area is mapped in high-risk flood zones and 74.4% in moderate-risk zones, based on the national hazard overlay. Exposure at this scale varies street by street, which is why an address-level check matters before you buy or insure a specific property in South Brisbane.

South Brisbane (postcode 4101) is tracked in ClimateNest's suburb hazard model, which maps the share of the suburb's land exposed to each hazard at high and moderate levels. The suburb's highest high-risk exposures are tropical cyclone (15% of land in high-risk zones), bushfire (13% of land in high-risk zones), extreme wind (12% of land in high-risk zones). Exposure is not uniform across South Brisbane — individual properties can sit well above or below these averages, so an address-level check is recommended before buying, selling or insuring.