Flood Risk in Sydney Olympic Park, NSW: 2026 Assessment

Sydney Olympic Park, New South Wales· UNKNOWN
Sydney Olympic Park faces a moderate risk of flooding due to its proximity to the Parramatta River and low-lying areas. Increased rainfall intensity and rising sea levels could exacerbate this risk.Updated 13 Apr 2026

Flood Risk Score

6.0/10

Sydney Olympic Park faces a moderate risk of flooding due to its proximity to the Parramatta River and low-lying areas. Increased rainfall intensity and rising sea levels could exacerbate this risk.

Key Facts

Flood Risk
Sydney Olympic Park faces a moderate risk of flooding due to its proximity to the Parramatta River and low-lying areas. Increased rainfall intensity and rising sea levels could exacerbate this risk.
Trend
increasing
Suburb
Sydney Olympic Park, NSW
Overall Risk
Medium
Postcode
2127
Highest high-risk exposure
13.2% of land (bushfire)

Flood Risk Analysis

Sydney Olympic Park, 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 areas near the river are prone to flash flooding during heavy rainfall events.

Sydney Olympic Park faces a moderate risk of flooding due to its proximity to the Parramatta River and low-lying areas. Increased rainfall intensity and rising sea levels could 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.

Sydney Olympic Park sits within ClimateNest's suburb-level hazard model for flood risk. 12.3% of the suburb's land area is mapped in high-risk flood zones and 70% 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 Sydney Olympic Park.

Sydney Olympic Park (postcode 2127) 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 (13.2% of land in high-risk zones), riverine flood (12.3% of land in high-risk zones), surface flood (10.5% of land in high-risk zones). Exposure is not uniform across Sydney Olympic Park — 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 Range5-10 meters
Flood Zone ClassificationPartially within a 100-year flood zone

Historical Events

2011
Moderate

Heavy rainfall caused flash flooding in low-lying areas of Sydney Olympic Park.

1990
Moderate

Significant flooding along the Parramatta River affected parts of the Olympic Park area.

Adaptation & Mitigation Actions

Improve drainage infrastructure

Near-term

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

Est. cost: High

Increase green spaces

Near-term

Plant more trees and create green spaces to reduce the urban heat island effect and provide shade.

Est. cost: Medium

Strengthen coastal defenses

Long-term

Implement measures to protect against sea level rise and storm surges, such as building seawalls or restoring natural buffers.

Est. cost: Very High

Develop heatwave response plan

Immediate

Create a plan to protect vulnerable populations during heatwaves, including cooling centers and public awareness campaigns.

Est. cost: Low

Raise awareness about flood risks

Immediate

Educate residents and businesses about flood risks and preparedness measures.

Est. cost: Low

Council & Emergency Services

City of Parramatta Council
Emergency Services

Data last updated: 13 April 2026

Explore Sydney Olympic Park Risk Reports

Frequently Asked Questions

Is Sydney Olympic Park at risk of flooding?

Based on available data, Sydney Olympic Park has a notable 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 Sydney Olympic Park?

Insurance costs for flood cover in Sydney Olympic Park 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 Sydney Olympic Park?

Yes, flood risk can affect property values in Sydney Olympic Park. 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 Sydney Olympic Park?

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

ClimateNest's hazard overlay maps 13.2% of Sydney Olympic Park in high-risk zones for bushfire, with a further 61.4% in moderate-risk zones. Suburb-level exposure is not uniform — individual properties can differ from these averages, so an address-level check is recommended.

Is Sydney Olympic Park Safe from Climate Risk?

Enter your address below for an instant climate risk assessment for Sydney Olympic Park, 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 · Australian addresses only · 8 hazard scores · Insurance trajectory · 2030 & 2050 projections