Flood Risk in Sylvania Waters, NSW: 2026 Assessment

Sylvania Waters, 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.

Many properties are located in close proximity to the Georges River and its tributaries, increasing flood risk.

Sylvania Waters is highly susceptible to flooding due to its low-lying areas and proximity to waterways. Increased rainfall intensity and sea level rise are expected to exacerbate flood risk.

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.

Sylvania Waters sits within ClimateNest's suburb-level hazard model for flood risk. 5.2% of the suburb's land area is mapped in high-risk flood zones and 70.7% 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 Sylvania Waters.

Sylvania Waters (postcode 2224) 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 surface flood (11.3% of land in high-risk zones), extreme wind (6.4% of land in high-risk zones), bushfire (5.8% of land in high-risk zones). Exposure is not uniform across Sylvania Waters — individual properties can sit well above or below these averages, so an address-level check is recommended before buying, selling or insuring.