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PROPERTY ANALYTICS

Climate Risk in Galston, NSW

Galston, New South Wales· Hornsby· 2159
Medium Risk
Updated Mar 2026

Galston, NSW, faces moderate climate risks, primarily from bushfires and flooding. Increasing temperatures and changing rainfall patterns are expected to exacerbate these risks in the future. Residents should prepare for more frequent extreme weather events.

Overall Risk Score

5.5/10
Medium

Confidence: Medium

Hazard Breakdown

Flood
6.0
Bushfire
7.0
Heat
4.0
Coastal
1.0

Detailed Hazard Analysis

heat Risk

4.0/10

Galston experiences moderate heat risk, with increasing average temperatures and more frequent heatwaves projected.

Primary Drivers

  • ·Climate change
  • ·Urban heat island effect

Projections (RCP8.5)

2030

4.5

2050

5.0

Data source

flood Risk

6.0/10

Galston faces a moderate risk of flooding due to its proximity to waterways and rainfall patterns. Properties near creeks and low-lying areas are particularly vulnerable.

Primary Drivers

  • ·Increased rainfall intensity
  • ·Urban development
  • ·Climate change

Projections (RCP8.5)

2030

6.5

2050

7.0

Data source

coastal Risk

1.0/10

Galston is not directly exposed to coastal risks.

Projections (RCP8.5)

2030

1.0

2050

1.0

Data source

bushfire Risk

7.0/10

Galston has a high bushfire risk due to its location surrounded by bushland. Hot, dry summers and strong winds exacerbate the risk.

Primary Drivers

  • ·Dry vegetation
  • ·High temperatures
  • ·Strong winds

Projections (RCP8.5)

2030

7.5

2050

8.0

Data source

What This Means for Property Owners

Insurance Outlook

Insurance premiums are likely to increase due to the elevated bushfire and flood risks.

Price Impact

Properties in high-risk areas may experience a decrease in value.

Buyer Checklist

  • 1.Check flood maps and bushfire-prone area designations.
  • 2.Assess the property's vulnerability to bushfires and floods.
  • 3.Obtain insurance quotes and understand coverage limitations.
  • 4.Consider the long-term climate risks and potential impacts on property value.

Local Climate Evidence

Flood Evidence

Nearest Waterway
Berowra Creek
Elevation Range
100-250m
Flood Zone
Areas near Berowra Creek are prone to flooding.

Historical flood data indicates that properties close to the creek have experienced inundation during heavy rainfall events.

View council flood map

Bushfire Evidence

Distance to Bushland
Surrounded by bushland
Planning Overlay
https://www.rfs.nsw.gov.au/plan-and-prepare/bush-fire-prone-land
Bushfire Prone Area
Yes

Galston is designated as a bushfire-prone area, requiring specific building standards for new constructions and renovations.

Heat Evidence

Avg January Max Temp
30.5°C
Heat Stress Days/Year
3 days

The number of days exceeding 35°C is projected to increase in the coming decades.

Coastal Evidence

Distance to Coast
30 km
Sea Level Rise Exposure
Not applicable
Erosion Risk
Not applicable

Historical Climate Events

2020
bushfireModerate

Bushfires impacted areas surrounding Galston, leading to evacuations and property damage.

Source
2016
floodModerate

Heavy rainfall caused flooding in low-lying areas of Galston, affecting homes and businesses.

Source
2013
bushfireMinor

A bushfire near Galston resulted in road closures and air quality concerns.

Source
2011
floodModerate

Significant flooding occurred in the Galston area due to prolonged heavy rainfall, impacting local infrastructure.

Source

Climate Outlook to 2050

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

HazardToday20302050
flood6.06.3(+0.3)6.5(+0.5)
bushfire7.07.4(+0.4)7.7(+0.7)
heat4.04.2(+0.2)4.4(+0.4)
coastal1.01.01.0

By 2030, Galston is projected to experience a moderate increase in overall climate risk, with bushfire risk increasing more significantly than other hazards. Heatwaves will become more frequent and intense.

CSIRO Climate Projections

Adaptation Recommendations

Improve Bushfire Preparedness

Immediate

Implement bushfire protection measures, such as clearing vegetation around homes, installing fire-resistant building materials, and developing a bushfire survival plan.

Est. cost: Low to Medium

Learn more

Enhance Flood Mitigation Infrastructure

Near-term

Invest in improved drainage systems and flood barriers to reduce the impact of flooding events.

Est. cost: High

Learn more

Develop a Heatwave Management Plan

Near-term

Implement strategies to protect vulnerable populations during heatwaves, such as establishing cooling centers and providing public health information.

Est. cost: Low to Medium

Learn more

Promote Water Conservation

Long-term

Encourage water conservation practices to reduce water stress during periods of drought and heat.

Est. cost: Low

Learn more

About Galston's Climate Risk Profile

Galston, located in the Hornsby Shire of New South Wales, is a suburb characterized by its semi-rural setting and proximity to significant bushland areas. This unique environment presents both advantages and challenges in the face of climate change.

The primary climate risks for Galston include bushfires and flooding. The suburb's location surrounded by bushland makes it highly susceptible to bushfires, particularly during the hot, dry summer months. Climate change is projected to increase the frequency and intensity of bushfires in the region, posing a significant threat to life and property.

Flooding is another concern for Galston, especially in low-lying areas and near waterways. Increased rainfall intensity due to climate change could lead to more frequent and severe flooding events, impacting homes, businesses, and infrastructure.

Rising temperatures and more frequent heatwaves also pose a risk to the health and well-being of Galston residents, particularly the elderly and vulnerable populations. While Galston is not directly exposed to coastal risks, the broader impacts of climate change, such as disruptions to supply chains and increased insurance costs, could still affect the suburb.

Addressing these climate risks requires a multi-faceted approach, including proactive bushfire management, improved flood mitigation infrastructure, and community awareness programs. Residents should also take steps to prepare their homes and families for extreme weather events.

Data sources: BOM · CSIRO · NSW RFS · NSW SES · Hornsby Shire Council

Local Government Resources

Hornsby Shire Council

Climate StrategyFlood MapsEmergency Services

Frequently Asked Questions

What are the main climate change risks for Galston?

The main climate change risks for Galston are bushfires, flooding, and heatwaves. These risks are projected to increase in the future due to climate change.

How can I prepare my home for a bushfire in Galston?

You can prepare your home for a bushfire by clearing vegetation around your home, installing fire-resistant building materials, and developing a bushfire survival plan. Refer to the NSW RFS website for detailed guidance.

What should I do during a flood in Galston?

During a flood, you should move to higher ground, avoid driving through floodwaters, and follow the instructions of emergency services. Stay informed about flood warnings and evacuation orders.

How can I stay safe during a heatwave in Galston?

During a heatwave, you should stay hydrated, avoid strenuous activity, and seek shelter in air-conditioned environments. Check on elderly and vulnerable neighbors.

Where can I find more information about climate change impacts in Galston?

You can find more information about climate change impacts in Galston from the Hornsby Shire Council, the NSW Department of Planning and Environment, and the CSIRO.

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