As part of its participation in a Nationwide House Energy Rating Scheme (NatHERS) trial for existing homes, ING will be offering select mortgage borrowers and applicants a free energy rating assessment. 

Previously, only new dwellings or those undergoing major renovations were eligible to receive a NatHERS rating.

Home loan borrowers applying to refinance to ING or top up their existing ING home loan might be offered to participate in the trial.

Homes with certain star ratings are typically eligible for lower rate green home loans, though ING doesn't offer any such product.

The trial will allow owners of existing dwellings to receive an unofficial energy rating score out of 10 stars, as well as tips on how to improve their rating.

Homeowners can use the findings to guide sustainable home improvements and seek a paid assessment when coverage for existing homes launches in mid-2025.

While ING doesn't offer a green home loan product, ING mortgage customers can access a low-rate Green Upgrade Loan add-on to fund energy efficiency improvements.

The add-on loan currently offers a five-year fixed rate of 3.74% p.a. (5.16% p.a. comparison rate*) and could be used to pay for improvements flagged in a NatHERS assessment.

Homeowners and renters can also request to be a part of the trial via the CSIRO website.

NatHERS trial to help homeowners lower energy bills & reduce emissions

"Housing accounts for about 25% of electricity use and more than 10% of emissions, which is why improving home energy efficiency is a key element of the Albanese Government's comprehensive plan to reach net zero by 2050," said Josh Wilson, assistant minister for climate change and energy.

"Extending the long-standing and trusted NatHERS to existing homes will give Australians who live in older residences the opportunity to improve the energy efficiency and climate resilience of their homes – to reduce energy costs, improve household health and comfort, while also helping to reduce emissions."

It's estimated that seven in 10 existing Australian homes (around 7.7 million dwellings) have an energy rating of three stars or lower.

Increasing a home's rating from three stars to five stars could reduce its energy expenditure for heating and cooling by around 40%.

Each assessment will take place at the same time as a property valuation and it will take between 30 and 60 minutes to collect the on-site data.

The NatHERS assessment trial is testing the process of rating the energy performance of existing dwellings before it's formally launched.

Currently, a new home's design, materials and construction, fixed appliances, and on-site energy generation and storage is considered when conducting rating assessments.

"At ING we're committed to reducing carbon emissions and that's why we're thrilled to be the first bank in Australia to participate in the NatHERS trial for existing houses," ING head of home loans George Thompson said.

"With the knowledge gained through this trial customers will have a better indication of what home improvements to prioritise to deliver the best energy efficiency and cost outcomes."

Are existing dwellings currently eligible for green home loans?

Eligibility criteria for green home loans typically include either a NatHERS rating or a Green Star certification – both of which are only available on new or substantially renovated homes.

However, your existing home might be eligible for specific green mortgage products if you've made certain energy-efficient upgrades.

For instance, you might be eligible for Bank Australia's Renovate Clean Energy Home Loan - which currently advertises an interest rate of 5.38% p.a. (6.14% p.a. comparison rate*) - if you've made three eligible upgrades or improved your Residential Efficiency Scorecard by at least one star.

Or, if you've recently installed solar panels or plan to in the near future, you could be eligible for loans.com.au's Solar Home Loan, which advertises a discounted rate of 5.99% p.a. (6.44% p.a. comparison rate*) at the time of writing.

Finally, if your home features at least five eligible sustainable features, such as solar panels, battery storage, or double glazing, you could apply for Reduce's Eco Home Loan, which advertises a 5.64% p.a. (5.69% p.a. comparison rate*) interest rate right now.


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Update resultsUpdate
LenderHome LoanInterest Rate Comparison Rate* Monthly Repayment Repayment type Rate Type Offset Redraw Ongoing Fees Upfront Fees Max LVR Lump Sum Repayment Additional Repayments Split Loan Option TagsFeaturesLinkComparePromoted ProductDisclosure
6.18% p.a.
6.44% p.a.
$2,575
Interest-only
Variable
$0
$530
90%
  • Interest only during construction period
  • No monthly or ongoing fees
  • Offset sub-account available after completion
  • Unlimited additional repayments after completion
Disclosure
5.74% p.a.
5.79% p.a.
$2,915
Principal & Interest
Variable
$null
$null
80%
5.70% p.a.
5.99% p.a.
$2,902
Principal & Interest
Variable
$299
$0
80%
5.74% p.a.
6.19% p.a.
$2,915
Principal & Interest
Variable
$0
$530
90%
  • No application, ongoing monthly or annual fees.
  • Available for refinance or purchases. Quick and easy online application process.
  • Dedicated loan specialist throughout the loan application.
  • Discounted interest rate for 5 years for homes with an eligible solar system
Disclosure
5.89% p.a.
6.50% p.a.
$2,962
Principal & Interest
Variable
$0
$721
90%
5.94% p.a.
6.28% p.a.
$2,978
Principal & Interest
Variable
$0
$530
90%
  • Discounted interest rate for 5 years for homes with an eligible solar system
  • Available for refinance or purchase
  • No monthly, annual or ongoing fees
Disclosure
Important Information and Comparison Rate Warning

Base criteria of: a $400,000 loan amount, variable, fixed, principal and interest (P&I) home loans with an LVR (loan-to-value) ratio of at least 80%. However, the ‘Compare Home Loans’ table allows for calculations to be made on variables as selected and input by the user. Some products will be marked as promoted, featured or sponsored and may appear prominently in the tables regardless of their attributes. All products will list the LVR with the product and rate which are clearly published on the product provider’s website. Monthly repayments, once the base criteria are altered by the user, will be based on the selected products’ advertised rates and determined by the loan amount, repayment type, loan term and LVR as input by the user/you. *The Comparison rate is based on a $150,000 loan over 25 years. Warning: this comparison rate is true only for this example and may not include all fees and charges. Different terms, fees or other loan amounts might result in a different comparison rate. Rates correct as of .

Important Information and Comparison Rate Warning


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