๐Ÿ“ฎ Rosehill postcode: 2142

Flood Risk in Rosehill, QLD: 2026 Assessment

Rosehill, Queenslandยท City of Parramattaยท 2142
Rosehill faces a notable risk of flooding due to its proximity to the Parramatta River and low-lying areas. Climate change is expected to increase the frequency and intensity of heavy rainfall events, exacerbating this risk.Updated 24 May 2026

Flood Risk Score

7.5/10

Rosehill faces a notable risk of flooding due to its proximity to the Parramatta River and low-lying areas. Climate change is expected to increase the frequency and intensity of heavy rainfall events, exacerbating this risk.

Key Facts

Flood Risk
Rosehill faces a notable risk of flooding due to its proximity to the Parramatta River and low-lying areas. Climate change is expected to increase the frequency and intensity of heavy rainfall events, exacerbating this risk.
Trend
increasing
Suburb
Rosehill, QLD
Overall Risk
Medium
Postcode
4370
Highest high-risk exposure
14.3% of land (riverine flood)

Flood Risk Analysis

Rosehill, 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.

Several properties in Rosehill are located within identified flood zones.

Rosehill faces a notable risk of flooding due to its proximity to the Parramatta River and low-lying areas. Climate change is expected to increase the frequency and intensity of heavy rainfall events, exacerbating this 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.

Rosehill sits within ClimateNest's suburb-level hazard model for flood risk. 14.3% of the suburb's land area is mapped in high-risk flood zones and 79.2% 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 Rosehill.

Rosehill (postcode 4370) 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 riverine flood (14.3% of land in high-risk zones), surface flood (12.1% of land in high-risk zones), bushfire (11.8% of land in high-risk zones). Exposure is not uniform across Rosehill 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 WaterwayParramatta River
Elevation Range5-15 meters
Flood Zone ClassificationYes

Historical Events

2022
Moderate

Significant flooding occurred in the Parramatta River, impacting low-lying areas of Rosehill.

2016
Minor

Heavy rainfall caused localized flooding in parts of Rosehill.

1990
Major

Major flooding of the Parramatta River impacted Rosehill and surrounding areas.

Adaptation & Mitigation Actions

Improve Flood Defenses

Immediate

Invest in infrastructure upgrades to mitigate flood risk, such as improved drainage systems and levees.

Est. cost: High

Implement Heatwave Action Plan

Near-term

Develop and implement a heatwave action plan to protect vulnerable residents during extreme heat events.

Est. cost: Medium

Increase Urban Green Space

Near-term

Increase the amount of green space in Rosehill to reduce the urban heat island effect and improve community resilience.

Est. cost: Medium

Raise Awareness of Climate Risks

Long-term

Educate residents about climate risks and adaptation measures through community workshops and outreach programs.

Est. cost: Low

Council & Emergency Services

City of Parramatta
Emergency Services

Data last updated: 24 May 2026

Explore Rosehill Risk Reports

Frequently Asked Questions

Is Rosehill at risk of flooding?

Based on available data, Rosehill 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 Rosehill?

Insurance costs for flood cover in Rosehill 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 Rosehill?

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

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

ClimateNest's hazard overlay maps 14.3% of Rosehill in high-risk zones for riverine flood, with a further 79.2% 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 Rosehill Safe from Climate Risk?

Enter your address below for an instant climate risk assessment for Rosehill, Queensland, 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