📮 Sans Souci postcode: 2219

Flood Risk in Sans Souci, NSW: 2026 Assessment

Sans Souci, New South Wales· Bayside· 2219
Sans Souci faces a notable risk of flooding due to its low-lying coastal location and proximity to Botany Bay. Sea level rise and increased rainfall intensity are expected to exacerbate this risk.Updated 18 May 2026

Is Sans Souci Safe from Climate Risk?

Enter your address below for an instant climate risk assessment for Sans Souci, 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

Sans Souci faces a notable risk of flooding due to its low-lying coastal location and proximity to Botany Bay. Sea level rise and increased rainfall intensity are expected to exacerbate this risk.

Key Facts

Flood Risk
Sans Souci faces a notable risk of flooding due to its low-lying coastal location and proximity to Botany Bay. Sea level rise and increased rainfall intensity are expected to exacerbate this risk.
Trend
increasing
Suburb
Sans Souci, NSW
Overall Risk
Medium
Postcode
2219

Flood Risk Analysis

Sans Souci, 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.

Low-lying areas near the coast are most vulnerable to flooding.

Sans Souci faces a notable risk of flooding due to its low-lying coastal location and proximity to Botany Bay. Sea level rise and increased rainfall intensity are expected to exacerbate 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.

ClimateNest assesses hazards at the address rather than the suburb, because exposure varies street by street within Sans Souci. An address-level check is what tells you about a specific property before you buy, sell or insure it.

Local Hazard Evidence

Nearest WaterwayBotany Bay
Elevation Range0-10 meters
Flood Zone ClassificationCoastal floodplain

Historical Events

2022
Moderate

Heavy rainfall caused localized flooding in low-lying areas of Sans Souci.

Adaptation & Mitigation Actions

Improve drainage infrastructure

Near-term

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

Est. cost: High

Protect coastal areas

Near-term

Implement coastal protection measures such as seawalls and beach nourishment to mitigate erosion and inundation.

Est. cost: Very High

Develop heatwave preparedness plans

Immediate

Create community-level heatwave preparedness plans and provide cooling centers for vulnerable residents.

Est. cost: Medium

Raise awareness of climate risks

Long-term

Educate residents about climate change impacts and adaptation measures through community workshops and online resources.

Est. cost: Low

Council & Emergency Services

Bayside Council
Emergency Services

Data last updated: 18 May 2026

Explore Sans Souci Risk Reports

Frequently Asked Questions

Is Sans Souci at risk of flooding?

Based on available data, Sans Souci 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 Sans Souci?

Insurance costs for flood cover in Sans Souci 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 Sans Souci?

Yes, flood risk can affect property values in Sans Souci. 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 Sans Souci?

Elevation is a critical factor in flood risk. Properties at higher elevations within Sans Souci 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 Sans Souci Safe from Climate Risk?

Enter your address below for an instant climate risk assessment for Sans Souci, 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