$25 billion in Australian coastal property at risk due to climate change

Remember when the Sydney Harbour went brown after flooding? Aesthetics may be only a hint of the impending disaster.
According to a report from Corelogic, erosion, storm surges, and climate change will jeopardise nearly $25 billion in Australian residential coastal property. Rapidly rising Australian sea levels only worsen the problem, which is poised to endanger nearly 20,000 coastal homes over the next three decades.
These natural trends will have far-reaching consequences for a property market still hot from the 2021 boom, particularly for home loans and home insurance premiums/coverage, which are already experiencing upward pressure due to an impending RBA cash rate rise and intense flooding on the east coast.
Buyers hoping for seaside homes should therefore take coastal risks into account when comparing potential mortgages repayments and insurance policies.
Risks of buying coastal property in Australia

Coastal risk typically accounts for events such as:
- Erosion
- Storm surges
- Rising sea levels.
Erosion (also known as shoreline retreat) endangers properties due landslides and bedrock removal either over short or long periods of time. Storm surges, currents, winds, and elevated tides can all directly affect coastal erosion – and will inevitably get worse as the sea level rises and the weather becomes more erratic due to climate change.
Corelogic’s report categorises Australian properties into five different levels of risk, from no risk to very high risk. Of the over 900,000 dwellings categorised in the report, 20,000 fell into the highest risk categories due to their coastal exposure (including nearly 12,700 houses and 9,400 units).
The report shows that Queensland bears the brunt of properties at risk, mostly due to the Sunshine and Gold Coast’s densely populated coastlines. New South Wales, Tasmania, and South Australia were close behind, however.
Suburbs experiencing the greatest coastal risk include Paradise Point in Queensland; Cronulla and Manly in Sydney, NSW; and Port Melbourne in Victoria.

These suburbs usually had a combination of high dwelling density, high value, high erosion, low elevation, and close proximity to the coastline.
This can come as worrying news for recent homeowners and investors, especially as a pandemic-driven shift to working from home led to a regional and coastal property boom. The aggravated coastal risk may yet be one of many climate change-related effects driving up the costs of housing, including mortgage repayments and home insurance premiums.
So while that dream home might have incredible seaside vistas and lifestyle appeal, the report author Dr. Pierre Wiart advises that taking coastal risks into account will help consumers make informed purchasing decisions.
“With the tangible effects of climate change already being felt in most parts of Australia,” he concludes, “this important data will allow consumers to make the best property decisions, and help them plan for long-term wealth preservation.”
RELATED: Feeling helpless about climate change? Here's what you can do (to save money, too!)
In the market for a home loan? Compare options below, or browse a curated list of green home loans to save the environment.
Compare home loans - last updated 13 August 2022
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Variable Home Loan 70
interest rate
comparison rate
Initial monthly repayment3.10% p.a. variable3.12% p.a.Affordable home loan rate for buyers or refinancers.. No monthly or ongoing fees. Option to add an offset for 0.10%. Access to savings with unlimited redraws available. Minimum 30% deposit required.
CompareCompareVariable Home Loan 70
Affordable home loan rate for buyers or refinancers.. No monthly or ongoing fees. Option to add an offset for 0.10%. Access to savings with unlimited redraws available. Minimum 30% deposit required.
- interest rate
- 3.10% p.a. variable
- comparison rate
- 3.12% p.a.
- interest rate
- 3.10% p.a. variable
- comparison rate
- 3.12% p.a.
- Upfront fees
- $520
- Ongoing fees
- $0.00
- Discharge Fee
- $0.00
- Extra repayments
- yes - free
- Redraw facility
- yes - free
- Offset account
- yes
- Maximum loan to value ratio
- 70.00%
- minimum borrowing amount
- $50,000
- maximum borrowing amount
- $2,000,000
- type of mortgage
- Variable
- Repayment types
- Principal & Interest
- Availability
- Owner Occupier
- Repayment options
- Weekly, Fortnightly, Monthly
- Special Offers
Read our Mozo Review to learn more about the Variable Home Loan 70
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Unloan Variable
Owner Occupier, Refinance Only
interest rate
comparison rate
Initial monthly repayment3.14% p.a. variable3.06% p.a.For refinancers only. Built by CommBank, the Unloan is the first home loan with an increasing discount (conditions apply) for borrowers. No application or banking fees. No monthly account keeping or early exit fees. Apply in as little as 10 minutes.
CompareCompareUnloan Variable
For refinancers only. Built by CommBank, the Unloan is the first home loan with an increasing discount (conditions apply) for borrowers. No application or banking fees. No monthly account keeping or early exit fees. Apply in as little as 10 minutes.
- interest rate
- 3.14% p.a. variable
- comparison rate
- 3.06% p.a.
- interest rate
- 3.14% p.a. variable
- comparison rate
- 3.06% p.a.
- Upfront fees
- $0
- Ongoing fees
- -
- Discharge Fee
- $0.00
- Extra repayments
- yes - free
- Redraw facility
- yes - free
- Offset account
- no
- Maximum loan to value ratio
- 80.00%
- minimum borrowing amount
- $10,000
- maximum borrowing amount
- $3,000,000
- type of mortgage
- Variable
- Repayment types
- Principal & Interest
- Availability
- Owner Occupier
- Repayment options
- Weekly, Fortnightly, Monthly
- Special Offers
Read our Mozo Review to learn more about the Unloan Variable
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Featured Product
Neat Home Loan
Owner Occupier, Principal & Interest, LVR <60%
interest rate
comparison rate
Initial monthly repayment3.64% p.a. variable3.66% p.a.Low variable rate No annual fees to pay. Unlimited additional repayments. Free redraw facility available. Fast digital application. 40% deposit required. Winner of Mozo Experts Choice Australia's Best Essential Bank 2022^.
CompareCompareNeat Home Loan
Low variable rate No annual fees to pay. Unlimited additional repayments. Free redraw facility available. Fast digital application. 40% deposit required. Winner of Mozo Experts Choice Australia's Best Essential Bank 2022^.
- interest rate
- 3.64% p.a. variable
- comparison rate
- 3.66% p.a.
- interest rate
- 3.64% p.a. variable
- comparison rate
- 3.66% p.a.
- Upfront fees
- $250
- Ongoing fees
- $0.00
- Discharge Fee
- $300.00
- Extra repayments
- yes - free
- Redraw facility
- yes - free
- Offset account
- no
- Maximum loan to value ratio
- 60.00%
- minimum borrowing amount
- $80,000
- maximum borrowing amount
- $5,000,000
- type of mortgage
- Variable
- Repayment types
- Principal & Interest
- Availability
- Owner Occupier
- Repayment options
- Weekly, Fortnightly, Monthly
- Special Offers
Read our Mozo Review to learn more about the Neat Home Loan
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PAYG Home Loan
Owner Occupier, Principal & Interest, LVR<80%
interest rate
comparison rate
Initial monthly repayment3.29% p.a. variable3.33% p.a.Low variable rate. Ideal for new home buyers or refinancers. Unlimited additional repayments. Unlimited free redraw. Application completely online. Optional 100% offset can be added for $120 p.a.. 20% deposit required.
CompareComparePAYG Home Loan
Low variable rate. Ideal for new home buyers or refinancers. Unlimited additional repayments. Unlimited free redraw. Application completely online. Optional 100% offset can be added for $120 p.a.. 20% deposit required.
- interest rate
- 3.29% p.a. variable
- comparison rate
- 3.33% p.a.
- interest rate
- 3.29% p.a. variable
- comparison rate
- 3.33% p.a.
- Upfront fees
- $840
- Ongoing fees
- $0.00
- Discharge Fee
- $500.00
- Extra repayments
- yes - free
- Redraw facility
- yes - free
- Offset account
- Optional - $10 per month
- Maximum loan to value ratio
- 80.00%
- minimum borrowing amount
- $250,000
- maximum borrowing amount
- $3,000,000
- type of mortgage
- Variable
- Repayment types
- Principal & Interest
- Availability
- Owner Occupier
- Repayment options
- Weekly, Fortnightly, Monthly
- Special Offers
Read our Mozo Review to learn more about the PAYG Home Loan
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Celebrate Variable Home Loan
<60% LVR, Owner Occupier, Principal & Interest
interest rate
comparison rate
Initial monthly repayment3.79% p.a. variable3.79% p.a.Fast and efficient online application. Automatic discounts as loan is paid down. Free extra repayments and redraw facility. Zero fees. Min 40% deposit required.
CompareCompareCelebrate Variable Home Loan
Fast and efficient online application. Automatic discounts as loan is paid down. Free extra repayments and redraw facility. Zero fees. Min 40% deposit required.
- interest rate
- 3.79% p.a. variable
- comparison rate
- 3.79% p.a.
- interest rate
- 3.79% p.a. variable
- comparison rate
- 3.79% p.a.
- Upfront fees
- $0
- Ongoing fees
- $0.00
- Discharge Fee
- $0.00
- Extra repayments
- yes - free
- Redraw facility
- yes - free
- Offset account
- yes
- Maximum loan to value ratio
- 60.00%
- minimum borrowing amount
- $100,000
- maximum borrowing amount
- $2,000,000
- type of mortgage
- Variable
- Repayment types
- Principal & Interest
- Availability
- Owner Occupier
- Repayment options
- Weekly, Fortnightly, Monthly
- Special Offers
Read our Mozo Review to learn more about the Celebrate Variable Home Loan
* WARNING: This comparison rate applies only to the example or examples given. Different amounts and terms will result in different comparison rates. Costs such as redraw fees or early repayment fees, and cost savings such as fee waivers, are not included in the comparison rate but may influence the cost of the loan. The comparison rate displayed is for a secured loan with monthly principal and interest repayments for $150,000 over 25 years.
** Initial monthly repayment figures are estimates only, based on the advertised rate, loan amount and term entered. Rates, fees and charges and therefore the total cost of the loan may vary depending on your loan amount, loan term, and credit history. Actual repayments will depend on your individual circumstances and interest rate changes.
^See information about the Mozo Experts Choice Home Loan Awards
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