Is Markwell, NSW Climate Safe? 2026 Assessment
Climate Safety Score
5.2/10Moderate climate risk — address-specific
Key Facts
- Climate Safety
- Medium
- Flood
- Markwell faces a moderate risk of flooding due to its proximity to waterways and low-lying areas. Climate change is expected to increase rainfall intensity, exacerbating flood risk.
- Bushfire
- The area around Markwell has a moderate bushfire risk due to surrounding bushland. Hotter, drier conditions are expected to increase the frequency and intensity of bushfires.
- Heat
- Markwell is likely to experience more frequent and intense heatwaves. This poses a risk to vulnerable populations, such as the elderly and those with chronic health conditions.
- Storm
- Moderate storm risk — East Coast Lows bring severe weather including hail and damaging winds
- Postcode
- 2423
- Highest high-risk exposure
- 15.8% of land (bushfire)
Climate Safety Analysis
Markwell in New South Wales has an overall climate safety rating of Medium. This multi-hazard assessment combines flood, bushfire, heat, coastal, and storm risk data with climate projections to 2050 from CSIRO and the Bureau of Meteorology.
Key factors affecting Markwell's climate safety include heat, flood. Each hazard is assessed independently and combined for an overall picture. Australia has warmed by approximately 1.5 °C since 1910, with flow-on effects to fire weather, extreme rainfall, and heatwave frequency.
Climate safety for property in Markwell is not uniform — it varies by address. Factors such as elevation, distance to waterways, proximity to bushland, and local drainage all influence actual risk at a specific property. Two nearby properties can have materially different risk profiles.
For a complete property-specific climate safety report for Markwell including address-level hazard mapping, insurance outlook, and adaptation recommendations, use the ClimateNest full analysis tool.
Markwell (postcode 2423) 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 (15.8% of land in high-risk zones), riverine flood (8.9% of land in high-risk zones), surface flood (7% of land in high-risk zones). Exposure is not uniform across Markwell — 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
Historical Events
Severe flooding impacted the region, causing significant damage and displacement.
Record-breaking temperatures caused heat stress and placed strain on infrastructure.
Bushfires in the region threatened properties and caused evacuations.
Major flooding of the Williams River caused widespread damage in the Dungog region, including Markwell.
Adaptation & Mitigation Actions
Improve Flood Defenses
Near-termInvest in improved drainage infrastructure and flood levees to protect properties from inundation.
Est. cost: High
Bushfire Preparedness
Near-termImplement community education programs and support residents in preparing their properties for bushfires.
Est. cost: Medium
Heatwave Action Plan
ImmediateDevelop a heatwave action plan to protect vulnerable populations, including cooling centers and public awareness campaigns.
Est. cost: Low
Water Resource Management
Long-termImplement strategies to conserve water resources and manage the impacts of drought.
Est. cost: Medium
Council & Emergency Services
Explore Markwell Risk Reports
View other climate risk assessments for Markwell:
Frequently Asked Questions
Is Markwell safe from climate change?
No location in Australia is entirely immune to climate change impacts. Markwell has an overall Medium climate risk rating. Understanding the specific hazards at your property address — not just the suburb average — provides the most reliable risk picture.
Which climate hazard poses the biggest risk in Markwell?
The dominant hazard for Markwell depends on geography and local environment. Proximity to waterways elevates flood risk, while proximity to bushland increases bushfire risk. ClimateNest's multi-hazard analysis identifies the highest-risk hazards for any specific address.
How does Markwell compare to nearby suburbs for climate safety?
Nearby suburbs may have different climate risk profiles depending on elevation, vegetation cover, drainage patterns, and land use. ClimateNest allows comparison of climate safety scores across New South Wales suburbs.
Should I be concerned about buying property in Markwell?
Climate risk should be one factor in your decision, alongside price, location, and amenity. An informed buyer understands the specific risks at a property address and factors insurance costs and climate projections into their assessment of long-term value.
What climate projections should I know for Markwell?
Key projections for New South Wales from CSIRO include increased average temperatures, more frequent hot days, changes in rainfall seasonality, longer fire seasons, and potential increases in extreme rainfall intensity. These trends inform the long-term outlook for Markwell.
What share of Markwell is exposed to high bushfire risk?
ClimateNest's hazard overlay maps 15.8% of Markwell in high-risk zones for bushfire, with a further 65.2% 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 Markwell Safe from Climate Risk?
Enter your address below for an instant climate risk assessment for Markwell, New South Wales, covering flood, bushfire, sea level rise and more.
What A$69 could save you from
*Industry sources: ICA, APRA, RBA
Full report from A$69 · Australian addresses only · 8 hazard scores · Insurance trajectory · 2030 & 2050 projections