๐Ÿ“ฎ Penshurst postcode: 2222

Flood Risk in Penshurst, NSW: 2026 Assessment

Penshurst, New South Walesยท Georges Riverยท 2222
Penshurst faces a moderate risk of flooding due to its proximity to the Georges River and local creeks. Intense rainfall events can lead to flash flooding and riverine flooding.Updated 11 May 2026

Flood Risk Score

6.5/10

Penshurst faces a moderate risk of flooding due to its proximity to the Georges River and local creeks. Intense rainfall events can lead to flash flooding and riverine flooding.

Key Facts

Flood Risk
Penshurst faces a moderate risk of flooding due to its proximity to the Georges River and local creeks. Intense rainfall events can lead to flash flooding and riverine flooding.
Trend
increasing
Suburb
Penshurst, NSW
Overall Risk
Medium
Postcode
2222
Highest high-risk exposure
18.6% of land (bushfire)

Flood Risk Analysis

Penshurst, 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.

Historical flood events have impacted properties along the Georges River. Council is undertaking flood mitigation works.

Penshurst faces a moderate risk of flooding due to its proximity to the Georges River and local creeks. Intense rainfall events can lead to flash flooding and riverine flooding.

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.

Penshurst sits within ClimateNest's suburb-level hazard model for flood risk. 9.3% of the suburb's land area is mapped in high-risk flood zones and 84% 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 Penshurst.

Penshurst (postcode 2222) 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 (18.6% of land in high-risk zones), surface flood (10.2% of land in high-risk zones), riverine flood (9.3% of land in high-risk zones). Exposure is not uniform across Penshurst 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 WaterwayGeorges River
Elevation Range5-20 meters
Flood Zone ClassificationAreas near the Georges River are designated as flood zones.

Historical Events

2011
Moderate

Significant rainfall led to flooding of the Georges River, affecting properties in Penshurst.

1986
Moderate

Major flooding of the Georges River impacted low-lying areas of Penshurst.

Adaptation & Mitigation Actions

Improve stormwater drainage

Immediate

Upgrade stormwater infrastructure to handle increased rainfall intensity and reduce the risk of flash flooding.

Est. cost: High

Implement urban greening

Near-term

Increase tree canopy cover and green spaces to reduce the urban heat island effect and provide shade during heatwaves.

Est. cost: Medium

Develop a heatwave response plan

Immediate

Create a community-based plan to support vulnerable residents during heatwaves, including cooling centers and outreach programs.

Est. cost: Low

Raise community awareness

Long-term

Educate residents about climate risks and adaptation measures through workshops, online resources, and community events.

Est. cost: Low

Council & Emergency Services

Georges River Council
Emergency Services

Data last updated: 11 May 2026

Explore Penshurst Risk Reports

Frequently Asked Questions

Is Penshurst at risk of flooding?

Based on available data, Penshurst 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 Penshurst?

Insurance costs for flood cover in Penshurst 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 Penshurst?

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

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

ClimateNest's hazard overlay maps 18.6% of Penshurst in high-risk zones for bushfire, with a further 61.9% 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 Penshurst Safe from Climate Risk?

Enter your address below for an instant climate risk assessment for Penshurst, 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