Flood Risk in Donnybrook, QLD: 2026 Assessment

Donnybrook, Queensland· UNKNOWN
Donnybrook faces a moderate risk of flooding, primarily from the Preston River. Increased rainfall intensity could exacerbate this risk.Updated 18 Mar 2026

Flood Risk Score

6.5/10

Donnybrook faces a moderate risk of flooding, primarily from the Preston River. Increased rainfall intensity could exacerbate this risk.

Key Facts

Flood Risk
Donnybrook faces a moderate risk of flooding, primarily from the Preston River. Increased rainfall intensity could exacerbate this risk.
Trend
increasing
Suburb
Donnybrook, QLD
Overall Risk
Medium
Postcode
4510
Region
Coastal QLD
Median property value
$675,000
Dominant hazard
extreme heat (6/10)
Highest high-risk exposure
23.3% of land (bushfire)

Flood Risk Analysis

Donnybrook, 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 events have impacted properties near the river.

Donnybrook faces a moderate risk of flooding, primarily from the Preston River. Increased rainfall intensity 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.

Donnybrook sits within ClimateNest's suburb-level hazard model for flood risk. 11.9% of the suburb's land area is mapped in high-risk flood zones and 64.3% 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 Donnybrook.

On ClimateNest's 0–10 suburb hazard index, Donnybrook scores 5 for flood risk — a moderate exposure relative to the Australian suburb range. For comparison, properties in Donnybrook can still sit well above or below this suburb average depending on elevation, distance to waterways or vegetation, and local drainage.

Donnybrook located in Coastal QLD (postcode 4510), is a Queensland suburb tracked by ClimateNest. The suburb's median property value is $675,000, and understanding climate exposure is becoming a standard part of due diligence for buyers, lenders and insurers pricing property in Donnybrook.

Across the six hazard axes ClimateNest models, the dominant climate risk in Donnybrook is extreme heat (score 6/10), with moderate exposure. Insurance signals for the suburb point to premiums rising significantly (+40% by 2030). These suburb-level signals help prioritise which properties need the closest look — the actual risk of any single home can only be confirmed with an address-level report.

Whether you are buying, selling or renovating in Donnybrook, extreme heat is the hazard to weigh first. Local council planning controls, state hazard mapping and lender climate policies each reference this kind of suburb-level signal, and property decisions in Donnybrook are increasingly made with an address-level climate report in hand.

Local Hazard Evidence

Nearest WaterwayPreston River
Elevation Range100-150m
Flood Zone ClassificationAreas near the Preston River are prone to flooding.

Historical Events

2022
Minor

Minor flooding occurred along the Preston River after a period of heavy rainfall.

2011
Moderate

Heavy rainfall caused the Preston River to flood, impacting properties near the river.

Adaptation & Mitigation Actions

Improve Flood Defenses

Near-term

Invest in infrastructure to mitigate flood risk, such as levees and improved drainage systems.

Est. cost: High

Bushfire Preparedness

Immediate

Implement community education programs and support residents in preparing their properties for bushfires.

Est. cost: Medium

Heatwave Action Plan

Near-term

Develop a heatwave action plan to protect vulnerable populations during extreme heat events.

Est. cost: Low

Water Resource Management

Long-term

Implement strategies to conserve water and ensure a sustainable water supply in the face of climate change.

Est. cost: Medium

Council & Emergency Services

Shire of Donnybrook-Balingup
Emergency Services

Data last updated: 18 March 2026

Explore Donnybrook Risk Reports

Frequently Asked Questions

Is Donnybrook at risk of flooding?

Based on available data, Donnybrook 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 Donnybrook?

Insurance costs for flood cover in Donnybrook 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 Donnybrook?

Yes, flood risk can affect property values in Donnybrook. 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 Donnybrook?

Elevation is a critical factor in flood risk. Properties at higher elevations within Donnybrook 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 are the main climate risks in Donnybrook?

ClimateNest's suburb model rates Donnybrook's dominant climate risk as extreme heat at 6/10 on a 0–10 index, followed by damaging wind (6/10) and severe storm (6/10). These are suburb-level averages — an address-level report is needed to confirm the risk of a specific property in Donnybrook.

What share of Donnybrook is exposed to high bushfire risk?

ClimateNest's hazard overlay maps 23.3% of Donnybrook in high-risk zones for bushfire, with a further 67.8% 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 Donnybrook Safe from Climate Risk?

Enter your address below for an instant climate risk assessment for Donnybrook, Queensland, 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