📮 Alexandria postcode: 2015

Flood Risk in Alexandria, NSW: 2026 Assessment

Alexandria, New South Wales· City of Sydney· 2015
Alexandria 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 4 Apr 2026

Is Alexandria Safe from Climate Risk?

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

Free instant previewCSIRO-powered data

What A$49 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$49 · Australian addresses only · 8 hazard scores · Insurance trajectory · 2030 & 2050 projections

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Flood Risk Score

Not assessed

Alexandria 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
Alexandria 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
Alexandria, NSW
Overall Risk
Medium
Postcode
2015
Region
Greater Sydney
Median property value
$1.6 million
Dominant hazard
extreme heat

Flood Risk Analysis

Alexandria, located in New South Wales, has a location-specific 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 Alexandria are susceptible to flash flooding during heavy rainfall events.

Alexandria 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.

Alexandria located in Greater Sydney (postcode 2015), is a New South Wales suburb tracked by ClimateNest. The suburb's median property value is $1.6 million, and understanding climate exposure is becoming a standard part of due diligence for buyers, lenders and insurers pricing property in Alexandria.

Across the six hazard axes ClimateNest models, the dominant climate risk for Alexandria in this type is extreme heat. Insurance signals for the suburb point to premiums rising moderately (+20% by 2030). The actual risk of any single home can only be confirmed with an address-level report.

Whether you are buying, selling or renovating in Alexandria, extreme heat is the hazard to weigh first. Local council planning controls, state hazard mapping and lender climate policies each reference this kind of suburb-level signal, and property decisions in Alexandria are increasingly made with an address-level climate report in hand.

Local Hazard Evidence

Nearest WaterwayAlexandra Canal
Elevation Range0-10 meters
Flood Zone ClassificationPartially within a 1% AEP flood zone

Historical Events

2022
Moderate

Heavy rainfall caused flash flooding in low-lying areas of Alexandria, disrupting traffic and damaging property.

Adaptation & Mitigation Actions

Improve drainage infrastructure

Near-term

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

Est. cost: High

Implement heatwave early warning system

Immediate

Develop a system to alert residents of impending heatwaves and provide guidance on how to stay safe.

Est. cost: Medium

Protect coastal areas

Long-term

Implement measures to protect coastal areas from sea level rise and storm surge, such as building seawalls and restoring natural habitats.

Est. cost: Very High

Promote green infrastructure

Near-term

Increase vegetation cover to reduce the urban heat island effect and improve stormwater management.

Est. cost: Medium

Council & Emergency Services

City of Sydney
Emergency Services

Data last updated: 4 April 2026

Explore Alexandria Risk Reports

Frequently Asked Questions

Is Alexandria at risk of flooding?

Based on available data, Alexandria has a location-specific 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 Alexandria?

Insurance costs for flood cover in Alexandria 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 Alexandria?

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

Elevation is a critical factor in flood risk. Properties at higher elevations within Alexandria 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.

Is Alexandria Safe from Climate Risk?

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

Free instant previewCSIRO-powered data

What A$49 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$49 · Australian addresses only · 8 hazard scores · Insurance trajectory · 2030 & 2050 projections