Flood Risk in Rose Bay, NSW: 2026 Assessment

Rose Bay, located in New South Wales, 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 New South Wales.

Parts of Rose Bay are located in identified flood zones, requiring specific building regulations and emergency preparedness measures.

Rose Bay has a moderate risk of flooding due to its proximity to the coast and low-lying areas. Heavy rainfall events can lead to stormwater runoff and potential inundation.

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.

Rose Bay sits within ClimateNest's suburb-level hazard model for flood risk. 2.4% of the suburb's land area is mapped in high-risk flood zones and 72.2% 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 Rose Bay.

Rose Bay (postcode 2029) 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 coastal inundation (13% of land in high-risk zones), bushfire (8.4% of land in high-risk zones), surface flood (3.9% of land in high-risk zones). Exposure is not uniform across Rose Bay — individual properties can sit well above or below these averages, so an address-level check is recommended before buying, selling or insuring.