Flood Risk in Roleystone, WA: 2026 Assessment

Roleystone, Western Australia· UNKNOWN
Roleystone faces a moderate risk of flooding, primarily from the Canning River and local creeks. Intense rainfall events can lead to flash flooding, impacting properties near waterways.Updated 19 Mar 2026

Flood Risk Score

4.0/10

Roleystone faces a moderate risk of flooding, primarily from the Canning River and local creeks. Intense rainfall events can lead to flash flooding, impacting properties near waterways.

Key Facts

Flood Risk
Roleystone faces a moderate risk of flooding, primarily from the Canning River and local creeks. Intense rainfall events can lead to flash flooding, impacting properties near waterways.
Trend
increasing
Suburb
Roleystone, WA
Overall Risk
Medium
Postcode
6111
Highest high-risk exposure
15% of land (bushfire)

Flood Risk Analysis

Roleystone, located in Western Australia, 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 Western Australia.

Historical flood events have impacted properties along the Canning River.

Roleystone faces a moderate risk of flooding, primarily from the Canning River and local creeks. Intense rainfall events can lead to flash flooding, impacting properties near waterways.

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.

Roleystone 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 77.7% 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 Roleystone.

Roleystone (postcode 6111) 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 (15% of land in high-risk zones), riverine flood (8.2% of land in high-risk zones), tropical cyclone (6.5% of land in high-risk zones). Exposure is not uniform across Roleystone — 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 WaterwayCanning River
Elevation Range100-300m
Flood Zone ClassificationAreas near Canning River and creeks

Historical Events

2022
Minor

Localized flooding occurred due to heavy rainfall, causing minor disruptions.

2010
Moderate

Heavy rainfall caused flooding along the Canning River, impacting some properties in Roleystone.

Adaptation & Mitigation Actions

Improve Drainage Infrastructure

Near-term

Upgrade local drainage systems to handle increased rainfall intensity and reduce flood risk.

Est. cost: Medium

Bushfire Mitigation Measures

Immediate

Implement bushfire mitigation measures, such as vegetation management and firebreaks, to reduce bushfire risk.

Est. cost: Medium

Heatwave Preparedness Plan

Near-term

Develop a heatwave preparedness plan to protect vulnerable populations during extreme heat events.

Est. cost: Low

Community Education Programs

Long-term

Conduct community education programs to raise awareness about climate risks and adaptation measures.

Est. cost: Low

Council & Emergency Services

City of Armadale
Emergency Services

Data last updated: 19 March 2026

Explore Roleystone Risk Reports

Frequently Asked Questions

Is Roleystone at risk of flooding?

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

What flood insurance costs can I expect in Roleystone?

Insurance costs for flood cover in Roleystone 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 Roleystone?

Yes, flood risk can affect property values in Roleystone. 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 Roleystone?

Elevation is a critical factor in flood risk. Properties at higher elevations within Roleystone 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 Roleystone is exposed to high bushfire risk?

ClimateNest's hazard overlay maps 15% of Roleystone in high-risk zones for bushfire, with a further 78.9% in moderate-risk zones. Suburb-level exposure is not uniform — individual properties can differ from these averages, so an address-level check is recommended.

Is Roleystone Safe from Climate Risk?

Enter your address below for an instant climate risk assessment for Roleystone, Western Australia, 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 · Australian addresses only · 8 hazard scores · Insurance trajectory · 2030 & 2050 projections