What you need to know about CommBank's Green Home Loan Offer

By Evlin DuBose · · 2 min read
Fact Checked
Advertiser disclosure
A fancy modern house with a green lawn.
Photo by R Architecture on Unsplash.

Last year, Commonwealth Bank introduced a green home loan offer, which rewards new and existing customers for reducing their dwellings’ environmental footprint.

The Green Home Offer promises lower interest rates for customers whose homes meet certain sustainable conditions, such as having a certified Green Star Home , or satisfying the following criteria:

  • Nationwide House Energy Rating Scheme (NatHERS) = 7 stars or greater.
  • Electric cooking/heating instead of gas
    Heat pump hot water system.
  • Solar panels producing minimum energy outputs*. 

*Minimum energy requirements for solar size relative to size of the house: 

  • Up to 150m2 = 5.5kWe
  • 150 - 250m2 = 7.5kWe
  • 250m2+ = 10kWe

Alternatively, customers can present evidence showing their home is a Green Building Council Australia Green Home Standard certified build.

Customers whose eco-friendly homes make the cut could enjoy a standard variable late as low as 4.99% p.a. (5.39% p.a. comparison rate*) – one of the lowest available options tracked by Mozo. 

This will be for owner-occupiers making P&I repayments with a Wealth Package mortgage and a deposit of at least 20%. 

Building a green home for the future

A model factory spewing flowers and leaves on a blue background.

Smaller lenders have offered green home loans to environmentally conscious Aussies for a while now. However, this launch marks a critical shift in the big bank’s attitude towards sustainability and climate change action.

“We want to reward new and existing customers [...] investing in homes that are efficient, comfortable, and healthier for them and the environment,” said CommBank’s executive general manager of home buying, Dr. Michael Baumann.

“We expect all residential homes to be built to these standards over the coming years as we move towards a net zero future.”

CommBank made the announcement in partnership with the Green Building Council of Australia (GBCA), who lauded the bank’s new future-minded mission, and has been supported with a further $125 million in funding by the Clean Energy Finance Corporation (CEFC).

RELATED: Sustainable and energy-efficient home features

By raising awareness and providing ways to ease both living costs and environmental impact, CommBank sets a new precedent in green finance for major Australian banks.

Looking to save money and the environment? Compare green home loans on offer.

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Last updated 5 December 2025 Important disclosures and comparison rate warning*
What are your home loan needs?
Loan purpose
Buying or Refinancing
  • Promoted

    Unloan Variable Home Loan

    • Owner occupier
    • Principal & Interest
    • 20% min deposit
    • Redraw available
    Interest rate
    5.19 % p.a.
    Variable
    Comparison rate
    5.10 % p.a.
    Initial monthly repayment
    $2,742
    Go to site
    • The first home loan with an automatic loyalty discount (conditions apply)
    • No application or banking fees
    • Built by CommBank

  • First Home Buyer Loan

    • Owner occupier
    • Principal & Interest
    • 5% min deposit
    • For first home buyers
    • Offset available
    • Redraw available
    Interest rate
    4.99 % p.a.
    Variable
    Comparison rate
    5.04 % p.a.
    Initial monthly repayment
    $2,681
    Go to site
    • Competitive interest rate – 4.99% p.a. (comparison rate* 5.04% p.a.)
    • Offset account to reduce interest and save on repayments
    • No establishment or monthly fees, plus valuation fees waived up to $1,000 (limited time)

  • Unloan Variable Home Loan

    • Owner occupier
    • Principal & Interest
    • 20% min deposit
    • Redraw available
    Interest rate
    5.19 % p.a.
    Variable
    Comparison rate
    5.10 % p.a.
    Initial monthly repayment
    $2,742
    Go to site
    • The first home loan with an automatic loyalty discount (conditions apply)
    • No application or banking fees
    • Built by CommBank

  • Discount Great Rate Home Loan

    • Owner occupier
    • Principal & Interest
    • 20% min deposit
    • Redraw available
    • Cashback
    Interest rate
    5.19 % p.a.
    Variable
    Comparison rate
    5.20 % p.a.
    Initial monthly repayment
    $2,742
    Go to site
    • Get up to $3,000 cashback when you apply online (T&Cs apply)
    • No paperwork or payslips required (see site for details)
    • Low variable rate

  • Variable Home Loan 90

    • Owner occupier
    • Principal & Interest
    • 10% min deposit
    • Offset available
    • Redraw available
    Interest rate
    5.29 % p.a.
    Variable
    Comparison rate
    5.33 % p.a.
    Initial monthly repayment
    $2,773
    Go to site
    • No monthly or ongoing fees
    • Option to add an offset for 0.10% p.a.

  • Offset Home Loan

    • Owner occupier
    • Principal & Interest
    • 40% min deposit
    • Offset available
    • Redraw available
    Interest rate
    5.39 % p.a.
    Variable
    Comparison rate
    5.42 % p.a.
    Initial monthly repayment
    $2,805
    Go to site
    • No ongoing monthly loan maintenance fees to pay.
    • Pre-approval valid for 3 months
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* 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. You can change the loan amount and term in the input boxes at the top of this table. 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.

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