๐Ÿ“ฎ Orchard Hills postcode: 2748

Flood Risk in Orchard Hills, NSW: 2026 Assessment

Orchard Hills, New South Walesยท Penrithยท 2748
Orchard Hills faces a moderate risk of flooding due to its proximity to waterways and low-lying areas. Climate change is expected to increase rainfall intensity, potentially worsening flood events.Updated 24 May 2026

Flood Risk Score

6.5/10

Orchard Hills faces a moderate risk of flooding due to its proximity to waterways and low-lying areas. Climate change is expected to increase rainfall intensity, potentially worsening flood events.

Key Facts

Flood Risk
Orchard Hills faces a moderate risk of flooding due to its proximity to waterways and low-lying areas. Climate change is expected to increase rainfall intensity, potentially worsening flood events.
Trend
increasing
Suburb
Orchard Hills, NSW
Overall Risk
Medium
Postcode
2748
Highest high-risk exposure
14% of land (riverine flood)

Flood Risk Analysis

Orchard Hills, located in New South Wales, 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 New South Wales.

Historical flood data indicates that parts of Orchard Hills have experienced flooding in the past. Penrith City Council maintains flood maps and provides information on flood preparedness.

Orchard Hills faces a moderate risk of flooding due to its proximity to waterways and low-lying areas. Climate change is expected to increase rainfall intensity, potentially worsening flood events.

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.

Orchard Hills sits within ClimateNest's suburb-level hazard model for flood risk. 14% of the suburb's land area is mapped in high-risk flood zones and 56.3% 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 Orchard Hills.

Orchard Hills (postcode 2748) 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 riverine flood (14% of land in high-risk zones), bushfire (11.3% of land in high-risk zones), surface flood (7.1% of land in high-risk zones). Exposure is not uniform across Orchard Hills โ€” 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

Nearest WaterwaySouth Creek
Elevation Range40-60m
Flood Zone ClassificationSome areas are within a designated flood zone.

Historical Events

2011
Moderate

Heavy rainfall caused flash flooding in some areas of Orchard Hills.

1990
Moderate

Major flooding in the Hawkesbury-Nepean Valley affected parts of Orchard Hills.

Adaptation & Mitigation Actions

Improve Drainage Infrastructure

Near-term

Upgrade and expand drainage systems to better manage increased rainfall and reduce the risk of flooding.

Est. cost: Medium

Implement Heatwave Early Warning System

Immediate

Develop and implement a heatwave early warning system to alert residents of impending heatwaves and provide guidance on how to stay safe.

Est. cost: Low

Bushfire Risk Mitigation

Near-term

Undertake vegetation management and controlled burns to reduce the risk of bushfires. Educate residents on bushfire preparedness.

Est. cost: Medium

Promote Water Conservation

Long-term

Encourage residents to conserve water through water-efficient appliances and landscaping practices.

Est. cost: Low

Community Education Programs

Near-term

Develop and implement community education programs to raise awareness of climate change risks and adaptation strategies.

Est. cost: Low

Council & Emergency Services

Penrith City Council
Emergency Services

Data last updated: 24 May 2026

Explore Orchard Hills Risk Reports

Frequently Asked Questions

Is Orchard Hills at risk of flooding?

Based on available data, Orchard Hills has a notable flood risk profile. Flood risk varies by address โ€” check your specific property for precise flood zone mapping and elevation data with ClimateNest.

What flood insurance costs can I expect in Orchard Hills?

Insurance costs for flood cover in Orchard Hills 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 Orchard Hills?

Yes, flood risk can affect property values in Orchard Hills. 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 Orchard Hills?

Elevation is a critical factor in flood risk. Properties at higher elevations within Orchard Hills 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 Orchard Hills is exposed to high riverine flood risk?

ClimateNest's hazard overlay maps 14% of Orchard Hills in high-risk zones for riverine flood, with a further 56.3% in moderate-risk zones. Suburb-level exposure is not uniform โ€” individual properties can differ from these averages, so an address-level check is recommended.

Is Orchard Hills Safe from Climate Risk?

Enter your address below for an instant climate risk assessment for Orchard Hills, New South Wales, covering flood, bushfire, sea level rise and more.

Free instant previewCSIRO-powered data

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 ยท Australian addresses only ยท 8 hazard scores ยท Insurance trajectory ยท 2030 & 2050 projections