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PROPERTY ANALYTICS

Climate Risk in Marrickville, NSW

Marrickville, New South Wales· Inner West· 2204
Medium Risk
Updated Mar 2026

Marrickville faces moderate climate risks, primarily from flooding and heatwaves. Increased rainfall intensity and rising temperatures are key drivers of these risks. While coastal risks are low, residents should prepare for more frequent and intense heatwaves and potential flood events.

Overall Risk Score

5.5/10
Medium

Confidence: Medium

Hazard Breakdown

Flood
6.0
Bushfire
3.0
Heat
7.0
Coastal
1.0

Detailed Hazard Analysis

heat Risk

7.0/10

Marrickville is susceptible to heatwaves, particularly during summer. Climate change is projected to increase the frequency and intensity of heatwaves, posing a risk to vulnerable populations.

Primary Drivers

  • ·Increased temperatures
  • ·Urban heat island effect
  • ·Reduced vegetation cover

Projections (RCP8.5)

2030

7.5

2050

8.0

Data source

flood Risk

6.0/10

Marrickville faces a moderate risk of flooding due to its proximity to the Cooks River and other waterways. Climate change is expected to increase rainfall intensity, exacerbating flood risk.

Primary Drivers

  • ·Increased rainfall intensity
  • ·Sea level rise
  • ·Urban development

Projections (RCP8.5)

2030

6.5

2050

7.0

Data source

coastal Risk

1.0/10

Marrickville is located inland and has a very low risk of coastal inundation or erosion. Sea level rise is not expected to directly impact the suburb.

Primary Drivers

  • ·Sea level rise
  • ·Storm surges

Projections (RCP8.5)

2030

1.0

2050

1.0

Data source

bushfire Risk

3.0/10

Marrickville has a relatively low bushfire risk due to its urban environment and distance from large bushland areas. However, increased temperatures and drier conditions could slightly elevate the risk.

Primary Drivers

  • ·Increased temperatures
  • ·Drier conditions
  • ·Wind patterns

Projections (RCP8.5)

2030

3.5

2050

4.0

Data source

What This Means for Property Owners

Insurance Outlook

Insurance premiums may increase due to flood risk.

Price Impact

Potential for minor price adjustments in flood-prone areas.

Buyer Checklist

  • 1.Check flood history of the property.
  • 2.Assess cooling and insulation for heatwaves.
  • 3.Review council's climate adaptation plans.

Local Climate Evidence

Flood Evidence

Nearest Waterway
Cooks River
Elevation Range
5-20 meters
Flood Zone
Partially within flood zone

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

View council flood map

Bushfire Evidence

Distance to Bushland
2-5 km to nearest bushland
Planning Overlay
No significant bushfire overlay
Bushfire Prone Area
No

Low bushfire risk due to urban density.

Heat Evidence

Avg January Max Temp
29°C
Heat Stress Days/Year
3 days

Urban heat island effect is noticeable in Marrickville.

Coastal Evidence

Distance to Coast
7 km
Sea Level Rise Exposure
Low
Erosion Risk
Negligible

Historical Climate Events

1990
floodModerate

Significant flooding along the Cooks River impacted Marrickville.

Source
2011
floodModerate

Heavy rainfall caused flash flooding in parts of Marrickville.

Source
2013
heatwaveModerate

Prolonged heatwave conditions affected Marrickville residents.

Source
2020
floodMinor

Localised flooding due to intense rainfall.

Source

Climate Outlook to 2050

Projections based on CSIRO and BOM climate modelling. Scenario: RCP8.5

HazardToday20302050
flood6.06.5(+0.5)7.0(+1.0)
bushfire3.03.2(+0.2)3.5(+0.5)
heat7.07.8(+0.8)8.2(+1.2)
coastal1.01.01.0

By 2030, Marrickville is projected to experience more frequent and intense heatwaves, as well as an increased risk of flooding. Bushfire risk will also slightly increase. Coastal risks remain low.

CSIRO Climate Projections

Adaptation Recommendations

Improve stormwater drainage

Immediate

Upgrade stormwater infrastructure to handle increased rainfall intensity and reduce flood risk.

Est. cost: High

Learn more

Increase green spaces

Near-term

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

Est. cost: Medium

Learn more

Community heatwave preparedness program

Immediate

Develop a program to educate residents about heatwave risks and provide support to vulnerable individuals.

Est. cost: Low

Learn more

Floodplain management plan

Near-term

Implement a comprehensive floodplain management plan to minimize the impact of flooding on properties and infrastructure.

Est. cost: High

Learn more

Promote water conservation

Long-term

Encourage residents to conserve water through rebates and educational programs to reduce strain on water resources during droughts.

Est. cost: Low

Learn more

About Marrickville's Climate Risk Profile

Marrickville, located in the inner west of Sydney, is increasingly vulnerable to the impacts of climate change. The suburb's proximity to the Cooks River makes it susceptible to flooding, which is expected to worsen with increased rainfall intensity.

Heatwaves are another significant concern for Marrickville residents. The urban environment contributes to the urban heat island effect, exacerbating the impact of rising temperatures. Vulnerable populations, such as the elderly and those with chronic health conditions, are particularly at risk.

While Marrickville is not directly exposed to coastal hazards, the broader Sydney region will experience sea level rise and increased storm surges, which could indirectly affect the suburb through economic and social disruptions.

Addressing these climate risks requires a multi-faceted approach, including improved stormwater management, increased green spaces to mitigate the urban heat island effect, and community awareness programs to prepare residents for extreme weather events. Individual actions, such as reducing energy consumption and water usage, can also contribute to a more sustainable future for Marrickville.

Data sources: BOM · CSIRO · NSW SES · Inner West Council

Local Government Resources

Inner West Council

Climate StrategyFlood MapsEmergency Services

Frequently Asked Questions

What are the main climate change risks for Marrickville?

The main risks are increased flooding due to heavier rainfall and more frequent and intense heatwaves. Bushfire risk is relatively low but could increase slightly.

How is the Inner West Council addressing climate change?

The council has a climate strategy focused on reducing emissions, promoting sustainable practices, and adapting to the impacts of climate change.

What can I do to prepare for heatwaves in Marrickville?

Stay hydrated, seek air-conditioned environments, check on vulnerable neighbors, and follow advice from health authorities.

Where can I find information about flood risks in Marrickville?

The Inner West Council website provides flood maps and information about flood preparedness.

Are there any programs to help residents reduce their carbon footprint?

The Inner West Council offers various programs and initiatives to support residents in reducing their environmental impact, such as energy efficiency rebates and waste reduction programs.

How will climate change affect property values in Marrickville?

Properties in flood-prone areas may experience some price adjustments. However, overall, the impact is expected to be moderate.

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