Flood Risk in Rossmoya, QLD: 2026 Assessment
Flood Risk Score
6.5/10Rossmoya 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.
Key Facts
- Flood Risk
- Rossmoya 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.
- Trend
- increasing
- Suburb
- Rossmoya, QLD
- Overall Risk
- Medium
- Postcode
- 4702
- Highest high-risk exposure
- 19.5% of land (tropical cyclone)
Flood Risk Analysis
Rossmoya, located in Queensland, 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 Queensland.
Historical flood data indicates past inundation of low-lying areas.
Rossmoya 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.
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.
Rossmoya sits within ClimateNest's suburb-level hazard model for flood risk. 6.9% of the suburb's land area is mapped in high-risk flood zones and 86% 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 Rossmoya.
Rossmoya (postcode 4702) 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 tropical cyclone (19.5% of land in high-risk zones), bushfire (10.9% of land in high-risk zones), riverine flood (6.9% of land in high-risk zones). Exposure is not uniform across Rossmoya — 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
Major flooding event impacted low-lying areas of Rossmoya following heavy rainfall.
Adaptation & Mitigation Actions
Improve Flood Defenses
Near-termInvest in infrastructure to mitigate flood risk, such as levees, drainage improvements, and flood-proofing of buildings.
Est. cost: High
Develop Heatwave Action Plan
ImmediateImplement a heatwave action plan to protect vulnerable populations, including cooling centers and public awareness campaigns.
Est. cost: Medium
Enhance Bushfire Preparedness
Near-termImplement bushfire mitigation measures, such as vegetation management, fire breaks, and community education programs.
Est. cost: Medium
Strengthen Coastal Resilience
Long-termImplement coastal protection measures, such as seawalls and beach nourishment, to mitigate the impacts of sea level rise and storm surge.
Est. cost: High
Improve Emergency Response
ImmediateEnhance emergency response capabilities to effectively manage climate-related disasters, including improved communication systems and evacuation plans.
Est. cost: Medium
Council & Emergency Services
Explore Rossmoya Risk Reports
View other climate risk assessments for Rossmoya:
Frequently Asked Questions
Is Rossmoya at risk of flooding?
Based on available data, Rossmoya 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 Rossmoya?
Insurance costs for flood cover in Rossmoya 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 Rossmoya?
Yes, flood risk can affect property values in Rossmoya. 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 Rossmoya?
Elevation is a critical factor in flood risk. Properties at higher elevations within Rossmoya 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 Rossmoya is exposed to high tropical cyclone risk?
ClimateNest's hazard overlay maps 19.5% of Rossmoya in high-risk zones for tropical cyclone, with a further 65.7% 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 Rossmoya Safe from Climate Risk?
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Full report from A$69 · Australian addresses only · 8 hazard scores · Insurance trajectory · 2030 & 2050 projections