๐Ÿ“ฎ Rosebery postcode: 2018

Flood Risk in Rosebery, NSW: 2026 Assessment

Rosebery, New South Walesยท City of Sydneyยท 2018
Rosebery faces a moderate risk of flooding due to its low-lying areas and proximity to waterways. Climate change is expected to increase rainfall intensity, exacerbating flood risk.Updated 2 May 2026

Flood Risk Score

6.5/10

Rosebery faces a moderate risk of flooding due to its low-lying areas and proximity to waterways. Climate change is expected to increase rainfall intensity, exacerbating flood risk.

Key Facts

Flood Risk
Rosebery faces a moderate risk of flooding due to its low-lying areas and proximity to waterways. Climate change is expected to increase rainfall intensity, exacerbating flood risk.
Trend
increasing
Suburb
Rosebery, NSW
Overall Risk
Medium
Postcode
2018
Highest high-risk exposure
14.9% of land (bushfire)

Flood Risk Analysis

Rosebery, 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 Rosebery are susceptible to flash flooding during heavy rainfall events.

Rosebery faces a moderate risk of flooding due to its low-lying areas and proximity to waterways. Climate change is expected to increase rainfall intensity, exacerbating 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.

Rosebery sits within ClimateNest's suburb-level hazard model for flood risk. 8.2% of the suburb's land area is mapped in high-risk flood zones and 69.1% 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 Rosebery.

Rosebery (postcode 2018) 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 bushfire (14.9% of land in high-risk zones), coastal inundation (9.8% of land in high-risk zones), riverine flood (8.2% of land in high-risk zones). Exposure is not uniform across Rosebery โ€” individual properties can sit well above or below these averages, so an address-level check is recommended before buying, selling or insuring.

Local Hazard Evidence

Nearest WaterwayAlexandra Canal
Elevation Range5-15 meters
Flood Zone ClassificationPartially within a 1% AEP flood zone

Historical Events

2022
Moderate

Heavy rainfall caused flash flooding in parts of Rosebery, leading to road closures and property damage.

Adaptation & Mitigation Actions

Improve stormwater drainage

Near-term

Upgrade stormwater infrastructure to handle increased rainfall intensity and reduce flood risk.

Est. cost: High

Increase green spaces

Near-term

Plant more trees and create green spaces to reduce the urban heat island effect and provide shade.

Est. cost: Medium

Develop a heatwave management plan

Immediate

Implement a plan to protect vulnerable populations during heatwaves, including cooling centers and community outreach.

Est. cost: Low

Coastal protection measures

Long-term

Implement coastal protection measures to mitigate the impacts of sea level rise and storm surges.

Est. cost: Very High

Council & Emergency Services

City of Sydney
Emergency Services

Data last updated: 2 May 2026

Explore Rosebery Risk Reports

Frequently Asked Questions

Is Rosebery at risk of flooding?

Based on available data, Rosebery has a notable flood risk profile. Flood risk varies by address โ€” check your specific property for precise flood zone mapping and elevation data with ClimateNest.

What flood insurance costs can I expect in Rosebery?

Insurance costs for flood cover in Rosebery depend on the property's flood zone classification, elevation, and proximity to waterways. ClimateNest provides address-level insurance cost estimates based on your property's specific hazard exposure.

Does flood risk affect property values in Rosebery?

Yes, flood risk can affect property values in Rosebery. Properties in mapped flood zones may experience lower buyer demand, reduced valuations, and higher insurance costs. Lenders increasingly assess flood exposure as part of mortgage risk evaluation.

How does elevation affect flood risk in Rosebery?

Elevation is a critical factor in flood risk. Properties at higher elevations within Rosebery typically have lower flood exposure than those near waterways or in low-lying areas. Address-level elevation data combined with BOM flood mapping provides the most accurate picture.

What share of Rosebery is exposed to high bushfire risk?

ClimateNest's hazard overlay maps 14.9% of Rosebery in high-risk zones for bushfire, with a further 64.4% in moderate-risk zones. Suburb-level exposure is not uniform โ€” individual properties can differ from these averages, so an address-level check is recommended.

Is Rosebery Safe from Climate Risk?

Enter your address below for an instant climate risk assessment for Rosebery, New South Wales, covering flood, bushfire, sea level rise and more.

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What A$69 could save you from

$7.2B
2022 insured disaster losses*
$300B+
climate risk to property by 2050*
30-120%
insurance premium increases in high-risk areas*

*Industry sources: ICA, APRA, RBA

Full report from A$69 ยท Australian addresses only ยท 8 hazard scores ยท Insurance trajectory ยท 2030 & 2050 projections