Around 3.5 million Aussies are planning on making renovations or improvements to their homes in the next six months, and there’s one thing they could do to save thousands in the long term.

Aussies can save up to $1,600 per year on their energy bills by factoring in energy efficiency when renovating or improving their home, according to research from KPMG and the Green Building Council of Australia (GBCA).

By switching your home to be all electric you could save up to $550 per year. By installing efficient water fixtures you could save $463 on your water bills. And by installing solar panels you could save at least $800 on energy bills per annum.

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Stephanie Munzone-Loxton is currently working with an architect to build a sustainable duplex where her family and her mother will live.

The Sydney teacher first learnt about building sustainably when researching for a school project for her students. Now, she says she’s keen to make her home more sustainable for her son.

“It’s not only improving the state of the planet, but also beneficial to our health because, by building sustainably, you can reduce a lot of the chemicals and emissions that normally enter a home,” Munzone-Loxton told Yahoo Finance.

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Some of the things she will be including in her new home include high-performance insulation, double-glazed windows, solar panels, a water tank and a heat-recovery ventilation system.

The duplex is set to cost $1.2 million to build and Munzone-Loxton said including sustainable improvements meant the cost would be more expensive initially.

“But having high-performance insulated windows and doors is going to mean that the air inside the house isn’t constantly flowing outside and our house is going to stay at a comfortable temperature at all times. So, we’re not going to be using air-conditioning,” Munzone-Loxton said.

“So, I think all [of the sustainable improvements] combined are going to make up for the increased cost initially.”

More Aussies looking to build sustainably

Sydney-based architect Alexander Symes said he’d noticed an increase in people looking to make their homes more sustainable and energy-efficient in the past four to five years.

But homeowners can often face barriers to making their homes sustainable, with new GBCA and Allianz research finding high costs, complexity and the weight of the task were common deterrents.