In a new report, Australian houses with solar energy and other upgrades for energy efficiency will not only save their owners on invoices, but also provide a significant price bonus when they sell their houses.
How much value do solar collectors contribute to Australian houses?
Short answer: between around 14,000 and 31,000 US dollars or between +1.6% and +6.9%, depending on where the house is located in Australia.
Longer answer: New knowledge from Cotality (formerly Corelogic) examined how the absorption of solar energy systems on the roof and the improvement of energy efficiency on the roof of the solar power system in Australia designed the property values and the behavior of the home buyer.
The calculation of the buoyancy bullet value delivered on the presence of solar collectors compared to no one, whereby all other attributes were kept constant (and home batteries were not taken into account). The values were based on 12 months of sales data until April 15, 2025.
Capital City Solar Value Add:
- Action: USD 23,285 (+2.1%)
- Adelaide: $ 14,093 (+1.7%)
- Brisbane: $ 30,219 (+3.3%)
- Darwin: $ 20,332 (+2.8%)
- Hobart: $ 30,459 (+5.4%)
- Melbourne: $ 24,360 (+2.8%)
- Perth: $ 14,939 (+2.1%)
- Sydney: $ 19,179 (+1.6%)
In a graphic:
Add the regional area of sunscape:
- Regional at: 22,272 USD (+ 4.7%)
- Regional QLD: $ 28.102 (+3.6%)
- Regional NT: $ 31,350 (+6.9%)
- Regional TAS: $ 18,232 (+3.1%)
- Regional Vic: $ 18,892 (+3.1%)
- Regional from: 22,594 USD (+4%)
- Regional NSW: USD 23,568 (+3.2%)
In a graphic:
Nationally, the value boost was $ 23,107; +2.7%.
If you have read other reports that have a stab on how much solar increases the value of an Australian house, some of the numbers provided are incredibly high – much higher than the estimates of Cotality. This is often due to the fact that these reports are very old and/or are based on numbers from the USA where solar is much more expensive.
However, the comparatively low costs for the installation of Home Solar in Australia ensure a very good investment based on the results of Cotality. Especially when you consider that the homeowner saves the system before the property is sold.
“A solar power system is one of the few energy-efficient upgrades that can be reliably measured by buyers and in rating models,” says the company.
Although an existing system is attractive for home buyers, you have to have problems you know. Get some tips for buying a house with already installed solar collectors.
How much value complement energy efficiency upgrades?
Cotality also examined how much an estimated additional nationwide star of the budget evaluation scheme (natural) increased the value of a house.
Nather measures the energy efficiency of a dormitories with the thermal performance of the building (heating and cooling requirements)- using a star rating system of 10. A house with a higher star evaluation should be more comfortable, have lower energy calculations and the installation of heating and cooling system costs should also be lower.
The minimum natural rating for new houses is now 7-stars. Houses that were built before 2003 have an average rating of only 1.5 stars. According to Cotality, there are more than 70% of the Australian housing stock (without apartments) under four stars.
With an additional natural star:
Capital cities (medium elevation)
- Action: $ 12,271 (+1.4%)
- Adelaide: 9,011 USD (+0.9%)
- Brisbane: $ 3,749 (+0.4%)
- Darwin: $ 32,946 (+4.5%)
- Hobart: $ 10,294 (+1.4%)
- Melbourne: $ 8.217 (+1.1%)
- Perth: $ 15,584 (+1.8%)
- Sydney: $ 21,350 (+1.4%)
Regional areas (medium increase):
- Regional at: $ 12,560 (+ 2.7%)
- Regional QLD: $ 7,091 (+0.9%)
- Regional NT: $ 5,973 (+1.6%)
- Regional TAS: $ 11,078 (+2.2%)
- Regional Vic: $ 4.938 (+0.8%)
- Regional from: $ 14,598 (+2.3%)
- Regional NSW: $ 7,909 (+1.2%)
And in a graphic:
The national median works at 10,560 US dollars; +1.3%.
“Our results show that houses with energy and efficiency upgrades not only provide long-term energy supply savings and comfort, but also measurable price premiums at a time that concerns about the cost of living costs for Australians are only amazing,” said Tom Coad, Senior Director, Banking and Finance at Cotality Australia.
For further figures, comments and details on the methodology, the report “Watts who are worth it” can access.
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