๐Ÿ“ฎ Riverstone postcode: 2765

Flood Risk in Riverstone, NSW: 2026 Assessment

Riverstone, New South Walesยท Blacktownยท 2765
Riverstone faces a moderate risk of flooding due to its proximity to waterways and low-lying areas. Historical flood events indicate potential for property damage and disruption.Updated 1 May 2026

Flood Risk Score

6.5/10

Riverstone faces a moderate risk of flooding due to its proximity to waterways and low-lying areas. Historical flood events indicate potential for property damage and disruption.

Key Facts

Flood Risk
Riverstone faces a moderate risk of flooding due to its proximity to waterways and low-lying areas. Historical flood events indicate potential for property damage and disruption.
Trend
increasing
Suburb
Riverstone, NSW
Overall Risk
Medium
Postcode
2765
Highest high-risk exposure
14.3% of land (bushfire)

Flood Risk Analysis

Riverstone, 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.

Some properties in low-lying areas are susceptible to flooding during heavy rainfall events.

Riverstone faces a moderate risk of flooding due to its proximity to waterways and low-lying areas. Historical flood events indicate potential for property damage and disruption.

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.

Riverstone sits within ClimateNest's suburb-level hazard model for flood risk. 10.9% of the suburb's land area is mapped in high-risk flood zones and 71.7% 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 Riverstone.

Riverstone (postcode 2765) 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 (14.3% of land in high-risk zones), surface flood (11.2% of land in high-risk zones), riverine flood (10.9% of land in high-risk zones). Exposure is not uniform across Riverstone 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 WaterwayHawkesbury River
Elevation Range10-30m
Flood Zone ClassificationPartially within flood zone

Historical Events

2011
Moderate

Widespread flooding affected many parts of NSW, including Riverstone, causing property damage and road closures.

1990
Moderate

Significant flooding occurred in the Hawkesbury River, impacting low-lying areas of Riverstone.

Adaptation & Mitigation Actions

Improve Flood Defenses

Near-term

Invest in flood mitigation infrastructure, such as levees and drainage improvements, to protect properties from flooding.

Est. cost: High

Enhance Bushfire Preparedness

Near-term

Implement stricter building codes for properties in bushfire-prone areas and promote community education on fire safety.

Est. cost: Medium

Develop Heatwave Action Plan

Immediate

Establish a heatwave early warning system and provide cooling centers for vulnerable residents during extreme heat events.

Est. cost: Low

Promote Water Conservation

Long-term

Encourage water-efficient landscaping and rainwater harvesting to reduce water demand during droughts and heatwaves.

Est. cost: Low

Council & Emergency Services

Blacktown City Council
Emergency Services

Data last updated: 1 May 2026

Explore Riverstone Risk Reports

Frequently Asked Questions

Is Riverstone at risk of flooding?

Based on available data, Riverstone 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 Riverstone?

Insurance costs for flood cover in Riverstone 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 Riverstone?

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

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

ClimateNest's hazard overlay maps 14.3% of Riverstone in high-risk zones for bushfire, with a further 59.7% 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 Riverstone Safe from Climate Risk?

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

Free instant previewCSIRO-powered data

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