Green Home Loans Guide: Save With Sustainable Property

Quick Summary

• Green home loans require homes to meet specific energy efficiency criteria.
• Qualification often requires a 7+ star NatHERS rating or other eco-certifications
• Major lenders offering green loans include CommBank, Loans.com.au, Gateway Bank, and Bank Australia.
• Benefits include lower interest rates, higher LVRs, and potential energy bill savings.
• Drawbacks include limited lender options and strict qualification criteria.
• NatHERS ratings measure a home’s energy efficiency on a 0-10 scale.
• To achieve a high rating, homes should use passive design principles and energy-efficient features.
• Green loans can be for new builds, purchases of efficient homes, or renovations to improve efficiency.

What Is A Green Home Loan?

Benefits Of Green Home Loans

• Lower interest rates: Most lenders offer discounted interest rates for green home loans, which can lead to significant savings over the life of your mortgage.
• Higher borrowing capacity: Some lenders may allow you to borrow more with a green home loan than a standard mortgage.
• Reduced energy costs: Energy-efficient homes typically have lower running costs, saving you money on utility bills.
• Increased property value: As sustainability becomes more important to buyers, energy-efficient homes may command higher resale values.
• Environmental impact: By choosing a green home, you’re contributing to reducing Australia’s carbon emissions and promoting sustainable living.
• You may be eligible for additional rebates and incentives from state and federal governments for energy-efficient home features.

Green Home Loan Vs Regular Loan

• Green home loans require you to meet strict criteria for things like heating, cooling, building materials, etc.
• Green loans sometimes have higher LVR than regular loans.
• Green home loans tend to have lower interest rates than regular loans.
• Some green loans do not offer an offset or redraw facility. So, make sure to talk to your mortgage broker about the options available to you.

How To Qualify For A Green Home Loan

• The home must be owner-occupied (some lenders may offer options for investors)
• Have a 7-star (or higher) rating from the Nationwide House Energy Rating Scheme (NatHERS)
• Hold a Residential Efficiency Scorecard with a 7 or more star rating
• Possess Passive House Certification
• Achieve a Green Star, Design & As-Built score of 8 points or more on the credit ’15 Greenhouse Gas Emissions’
• Meet specific energy-efficient features as outlined by individual lenders (e.g., solar panels, double-glazed windows, etc.)

Best Green Home Loans In Australia

CommBank (CBA)

Loans.com.au – Green Home Loan

• Requires a valid Nationwide House Energy Rating Scheme (NatHERS) certificate from an accredited assessor showing a 7.5-star rating or higher.
• Loan purpose can include new build or extensive green renovation (via their “Green Construction” loan).

• Variable interest rate from 5.68% p.a. for owner-occupier Green Construction loans.
• Comparison rate starts from 5.94% p.a.
• No monthly or ongoing fees.
• Offset sub-account available (once construction/upgrade is completed).
• Unlimited additional repayments after completion of construction. 

Gateway Bank's Green Home Loans

Green Plus Home Loan (Owner-Occupier)

• Property must have a minimum energy-efficiency rating: either a 7-star or higher from the Nationwide House Energy Rating Scheme (NatHERS) or a minimum 7-star from the Residential Efficiency Scorecard. 
• Applies to new builds or existing homes certified with these ratings. 
• Owner-occupier principal & interest loan required (typically).

• Discount from standard premium package home loan rate
• Variable interest rate from 5.10% p.a. for owner-occupier
• Comparison rate starts from 5.40% p.a.
• Features include: unlimited extra repayments, redraw facility, offset account (100% offset capability) in many cases.
• No establishment (or “application”) fee
• Maximum LVR typically up to 80%

• The product is positioned as part of Gateway’s “Premium Package Home Loan” family, but with green incentives. 
• While exact discount may vary by loan size, borrower profile and property location, the “at least 0.25%” is a guide

Green Home Loan (Owner-Occupier)

• This product is targeted at homes that may not meet the full 7-star rating but have verified green upgrades or lower rating thresholds (for example, 4-star to 6.9-star Residential Efficiency Scorecard).
• Homes with environmental features (e.g., solar PV, insulation, double-glazing etc) may qualify under this variant.

• Discount from standard package rate of at least 0.15%
• Same features as Green Plus: unlimited extra repayments, redraw, offset account.
• Variable interest rate from 5.10% p.a. for owner-occupier
• Comparison rate starts from 5.40% p.a.

• This variant gives flexibility for homes that don’t quite hit the highest certification but still demonstrate meaningful energy-efficient features.
• Requires documentation from accredited assessor and may have time-limits on verifying upgrades.

Investor Green Plus Home Loan (Investment Property)

• Designed for investor-owned properties that meet the same high energy-efficiency threshold: e.g., 7-star NatHERS or 7-star Residential Efficiency Scorecard.
• Minimum discount is tied to property meeting those green criteria. 

• According to Gateway’s disclosure, the discount is a minimum 0.25% p.a. discount off the lender’s “Investor Premium Package Home Loan” variable rate for eligible properties.
• Variable interest rate from 5.49% p.a. for owner-occupier
• Comparison rate starts from 5.78% p.a.

• This is a relatively newer product in the investor space; Gateway emphasises that investors seeking sustainable properties can access green incentives. 
• Because investor lending often has higher risk/interest, the discount is structured differently and investor documentation may require proof of property rating/ upgrades.

Handypay Green Loan

• The funds must be used for verifiable green initiatives such as—solar panels, solar batteries, solar inverters, solar heating/cooling systems, rainwater tanks, energy-efficient renovations.
• Applicants must be a homeowner (or renovating one) subject to credit assessment.

• Loan amounts from $2,001 up to $75,000.
• Fixed interest rates starting from ~6.57% p.a. 
• No monthly or annual ongoing fees.
• No early-repayment or early-termination fees in many cases (check terms).
• Flexible loan term options up to 10 years for green loans.
• Application may be completed online; faster approvals/decisions noted by the lender.

• The exact “starting rate” depends heavily on borrower credit, loan size, term, security, and whether the funds are strictly used for the green upgrade purpose.
• Because this is a specialised personal/green upgrade loan (not a standard mortgage product), features like LVR or property security may differ.
• Always check with the lender or a mortgage broker.

Bank Australia – Clean Energy Home Loan

• Buy or build a new home with high energy efficiency (for example, the New Build pathway requires building or buying a “green” home). 
• Make major green upgrades to an existing home (Renovate pathway) — note: applications for the Renovate option are currently paused for new applicants.
• The property must meet certain eligibility criteria (e.g., owner-occupier or investor, loan to value ratio ≤ 90%).

• Reduced variable home loan rate for 5 years (or fixed rate for 3 years) for qualifying homes. 
• Example rate (New Build, effective 24 Sept 2025) for LVR ≤90%: Variable 5.13% p.a., Comparison rate 5.47% p.a. 
• The loan is backed by the Clean Energy Finance Corporation (CEFC) in partnership with Bank Australia, helping fund and support the discounted rate. 
• Features include: 100 % offset account, “eco-pause” option for repayments while you make green upgrades, and full principal & interest repayment option. 
• Minimum new borrowings of $10,000.

Regional Australia Bank – Green Sustainable Enviro Home Loan

• The loan must be used for a purchase that supports sustainability or the environment (e.g., solar panels, insulation, green upgrades).
• Minimum loan can be as low as $500.
• Property or home improvements must meet the lender’s criteria (secured or unsecured loan) with the purpose clearly for an environmentally-friendly upgrade.

• Variable interest rate: 7.20% p.a. 
• Comparison rate: 8.54% p.a.
• No monthly service fees. 
• Availability of extra repayments / redraw (on secured version) — allows faster pay-down of the loan. 
• Maximum term 5 years for this product. 

Firstmac – Green Offset Variable Home Loan

• Your new home must have a valid Nationwide House Energy Rating Scheme (NatHERS) certificate from an accredited assessor showing at least 7.5-star rating.
• The product is geared toward new builds (or major construction) of energy-efficient homes. 
• Home-loan should be principal & interest (P&I) or allow up to 5 years interest-only. 

• Up to a 0.45% p.a. discount off the standard construction/home loan rate for qualifying green homes.
• No annual or account-keeping fees for this green home mortgage. 
• Unlimited additional repayments allowed after completion.
• Unlimited redraw facility after completion.

• The green home discount is time-limited: it applies for a set period (e.g., first five years) before reverting to the lender’s standard rate.

Pros And Cons Of Getting A Green Home Loan

The pros

• Green home loans are usually discounted, which can save you lots of money in the long run,
• Going green means that your house has a lower carbon footprint. For example, more efficient houses can emit up to 62% fewer greenhouse gases.
• Having a green home is not only good for the environment. It is also good for your pocket. An energy-efficient home can save you a sweet 66% in electricity usage.
• Green homes are designed to take advantage of natural things like sun and wind to make your home comfortable in any weather. This means you will enjoy living in your home with a lot of sunshine and good ventilation.
• There is less exposure to toxic materials in a green home, which can be very helpful in reducing respiratory illnesses.
• If you intend to sell your house down the road, then going green can increase the value of your home as more and more people are becoming climate-conscious when buying homes. According to a 2018 Energy Consumer Sentiment Survey, 60% of respondents said energy efficiency would be a factor when buying a home.

The cons

• Limited lenders. Although the list of lenders offering green home loans in Australia is growing, the list is still very small. This means you will have a limited pool of lenders to choose from. Talk to your mortgage broker to determine which lender works best for your situation.
• Green home loans usually have very strict lending criteria, which can make them difficult to get.

Bonus: What Is The NatHERS Rating, And How Does It Work?

• the layout of the home and orientation
• roof, walls, windows and floor construction methods and materials
• shading to the sun’s path and how well your home takes advantage of local breezes

What do the NatHERS ratings mean?

• A 0-star rating means the building shell does practically nothing to reduce the discomfort of hot or cold weather.
• A 6-star rating is a minimum standard in most states and territories. It indicates good, but not outstanding, thermal performance.
• A 10-star rated home may not need artificial cooling or heating to keep you comfortable.

Bonus: How To Achieve An Energy Rating Of 7 Stars

Here are some practical ways to improve your NatHERS rating:

• Glazing by the orientation of each room. For example, if you live in a hotter climate, North-facing rooms should have less glazing to prevent heat gain in Summer. But if you live in a cooler climate, North-facing windows should have more glazing to get passive heat gain.
• Prevent air leakage by putting weatherstrips and seals on windows and sliding doors.
• Make your interior room layout more efficient by grouping non-conditioned rooms like laundry and bathrooms close to each other.
• Change your roof colour. If you are in warmer places like Brisbane, a lighter colour for your room will be better. But a darker roof performs better in colder areas like Melbourne.

Green Home Mortgage Frequently Asked Questions

Applying For A Green Home Loan

More Resources For Homebuyers:

• First Home Buyers Guide from start to finish
• How to Buy a House (Step-By-Step Case Study)
• Using your Superannuation to build your deposit: The Complete Guide to the First Home Super Saver Scheme
• How to save for a house deposit (fast)
• Build a House in Brisbane: The Definitive Guide